578 results on '"Tablets administration & dosage"'
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2. Pharmacokinetics and Bioequivalence of Mirogabalin Orally Disintegrating Tablets and Conventional Tablets in Healthy Japanese Participants.
- Author
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Toyama K, Eto T, Suzuki K, Shinohara S, Yoshiba S, Yoshihara K, and Ishizuka H
- Subjects
- Humans, Male, Tablets administration & dosage, Tablets pharmacokinetics, Therapeutic Equivalency, Administration, Oral, Drug Liberation, Healthy Volunteers, Bridged Bicyclo Compounds administration & dosage, Bridged Bicyclo Compounds blood, Bridged Bicyclo Compounds pharmacokinetics, East Asian People
- Abstract
This single-center, randomized, open-label, single-dose, 2-group, 2-stage crossover trial evaluated the bioequivalence of 15 mg of mirogabalin as orally disintegrating tablets (ODTs) with conventional mirogabalin tablets in healthy Japanese men. The trial involved two studies: in Study 1, the ODT formulation was taken without water, and in Study 2, the ODT formulation was taken with water. The conventional tablet was taken with water in both studies. We investigated the pharmacokinetic parameters and bioequivalence of the 2 formulations, including the maximum plasma concentration and the area under the plasma concentration-time curve up to the last quantifiable time. The plasma concentrations of mirogabalin were determined by a validated liquid chromatography with tandem mass spectrometry method. A total of 72 participants were enrolled and completed the trial. The geometric least-squares mean ratios of maximum plasma concentration of the ODT formulation to the conventional formulation were within the prespecified bioequivalence range of 0.80-1.25 (Study 1, 0.995; Study 2, 1.009), as was the area under the plasma concentration-time curve up to the last quantifiable time (Study 1, 1.023; Study 2, 1.035). No serious adverse events were observed. In conclusion, mirogabalin 15-mg ODTs, either with or without water, were bioequivalent to conventional 15-mg tablets., (© 2023 The Authors. Clinical Pharmacology in Drug Development published by Wiley Periodicals LLC on behalf of American College of Clinical Pharmacology.)
- Published
- 2023
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3. Fluralaner 5.46% (w/w) flavored chewable tablet (Bravecto ® 1-Month) is effective for treatment of canine generalized demodicosis.
- Author
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Rohdich N, Meyer L, and Guerino F
- Subjects
- Animals, Dogs, Tablets administration & dosage, Tablets therapeutic use, Dog Diseases drug therapy, Dog Diseases parasitology, Isoxazoles administration & dosage, Isoxazoles therapeutic use, Mite Infestations drug therapy, Mite Infestations veterinary
- Abstract
Background: Orally administered fluralaner (13.64% w/w) is effective for treating canine generalized demodicosis. A study was initiated to assess the efficacy of a novel 5.46% w/w fluralaner chewable tablet formulation for monthly administration in the treatment of this disease., Methods: Client-owned dogs diagnosed with generalized demodicosis were acclimatized to laboratory conditions and randomized to receive either orally administered fluralaner (Bravecto
® 1-Month) (10.0 to 14.4 mg/kg body weight) (n = 8) or topical imidacloprid-moxidectin (Advocate® for dogs, Elanco) applied per label on days 0, 28, and 56 (n = 8), or more frequently for ongoing severe demodicosis. On days -2, 28, 56, and 84, deep skin scrapings were taken from five sites on each dog for mite identification and counting, and semiquantitative clinical assessments of generalized demodicosis were recorded. Primary efficacy was based upon arithmetic mean mite count reductions relative to pre-treatment., Results: By day 28, mean pre-treatment mite counts, > 600 in both groups, were significantly reduced by 99.7% and 89.5% (both P < 0.001) in the fluralaner and imidacloprid-moxidectin groups, respectively. Parasitological cure (100% reduction in mite counts on days 56 and 84) was achieved in all fluralaner-treated dogs (100%) and in two imidacloprid-moxidectin-treated dogs (25%). In the imidacloprid-moxidectin group, the reduction in mean mite counts was 89.5% (day 28), 94.4% (day 56), and 97.5% (day 84). All study dogs were free of crusts on days 56 and 84. Scales resolved by day 84 in all fluralaner-treated dogs and in three imidacloprid-moxidectin-treated dogs. All fluralaner-treated dogs and five imidacloprid-moxidectin-treated dogs had > 90% hair regrowth on day 84., Conclusion: Three consecutive monthly orally administered treatments with fluralaner (5.46% w/w) flavored chewable tablets (minimum dose rate 10 mg/kg body weight) eliminated Demodex canis mites from dogs diagnosed with generalized demodicosis., (© 2022. The Author(s).)- Published
- 2022
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4. Development of Dolutegravir Single-entity and Fixed-dose Combination Formulations for Children.
- Author
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Singh RP, Adkison KK, Baker M, Parasrampuria R, Wolstenholme A, Davies M, Sewell N, Brothers C, and Buchanan AM
- Subjects
- Acquired Immunodeficiency Syndrome drug therapy, Administration, Oral, Adolescent, Adult, Aged, Anti-HIV Agents pharmacokinetics, Biological Availability, Dideoxynucleosides, Drug Combinations, Heterocyclic Compounds, 3-Ring pharmacokinetics, Humans, Lamivudine, Middle Aged, Oxazines pharmacokinetics, Piperazines pharmacokinetics, Pyridones pharmacokinetics, Tablets administration & dosage, Young Adult, Anti-HIV Agents administration & dosage, Heterocyclic Compounds, 3-Ring administration & dosage, Oxazines administration & dosage, Piperazines administration & dosage, Pyridones administration & dosage
- Abstract
Background: The World Health Organization (WHO) 2019 antiretroviral treatment guidelines recommend use of optimal treatment regimens in all populations. Dolutegravir-based regimens are the preferred first-line and second-line treatment in infants and children with HIV 4 weeks of age and above. There is an urgent need for optimal pediatric formulations of dolutegravir as single-entity (SE) and fixed-dose combination (FDC) to ensure correct dosing and adherence for swallowing and palatability. This article outlines the chronology of dolutegravir pediatric formulation development as granules and conventional and dispersible tablets in a total of 5 pharmacokinetic studies evaluating the relative bioavailability of dolutegravir SE and FDC formulations in healthy adults., Methods: The relative bioavailability studies were 2-part, Phase I, open-label, randomized studies in healthy adults. Dolutegravir SE study compared conventional dolutegravir 50 and 25 mg with equivalent conventional 10-mg and dispersible 5-mg tablets, respectively. Subsequently, dolutegravir FDC study compared adult FDC of abacavir/dolutegravir/lamivudine and adult FDC of dolutegravir/lamivudine with their respective pediatric FDC formulations, taken as dispersion immediately or swallowed whole., Results: As observed in previous studies, dolutegravir administered as dispersion (granules/dispersible tablets) showed relatively higher bioavailability compared with conventional tablets. The bioavailability of dolutegravir dispersible tablets (both SE and FDC) was approximately 1.6-fold higher when compared with conventional tablets. In addition, the bioavailability of abacavir/lamivudine was not impacted by dispersible formulation., Conclusions: These studies demonstrate the successful development of pediatric dolutegravir-containing formulations as SE and FDC that permit pediatric dosing in line with WHO recommendations., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2022
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5. The effectiveness of split tablet dosing versus alternate-day dosing of warfarin: a randomized control trial.
- Author
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Kaewsaengeak C, Pienputtarapong U, and Tocharoenchok T
- Subjects
- Aged, Anticoagulants pharmacokinetics, Clinical Decision-Making, Disease Management, Drug Administration Schedule, Female, Humans, International Normalized Ratio, Male, Middle Aged, Treatment Outcome, Warfarin pharmacokinetics, Anticoagulants administration & dosage, Tablets administration & dosage, Warfarin administration & dosage
- Abstract
Due to large dosage variation, a variety of warfarin prescription regimens are utilized for specific doses such as tablet splitting, or pill strength alternating. The clinical comparison between the two is lacking. We hypothesize that both approaches result in different times in therapeutic range. We randomized patients with specific warfarin dosage and stable INR for 6 months or longer to receive the whole tablet, alternate-day dosing or the split tablet, same daily-dosing regimen without initial dose change and followed them every 6 weeks for 6 months. The primary outcome was a time in therapeutic range of 2.0-3.0. The secondary outcomes included dosage, compliance, INR, anticoagulant-related events. A total of 66 patients were enrolled, 32 randomly assigned to the split tablet regimen (group S) and 34 to the alternate-day regimen (group A) with two withdrawers. The mean age was 58.6 ± 8.5 years. All baseline characteristics of both groups were similar. The average time in therapeutic range was 72.8 ± 25.4% in group S and 74.9 ± 22.0% in group A (p = 0.72). There were no significant differences in warfarin dosage, compliance, INR and, complications between the two groups. Both warfarin prescription methods, the split tablet and the alternate-day had comparable time in the therapeutic range., (© 2021. The Author(s).)
- Published
- 2021
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6. Pharmacokinetics and diuretic effect of furosemide after single intravenous, oral tablet, and newly developed oral disintegrating film administration in healthy beagle dogs.
- Author
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Koh SK, Jeong JW, Choi SI, Kim RM, Koo TS, Cho KH, and Seo KW
- Subjects
- Administration, Intravenous veterinary, Administration, Oral, Alginates chemistry, Animals, Cross-Over Studies, Diuretics administration & dosage, Diuretics pharmacokinetics, Dogs urine, Drug Delivery Systems veterinary, Female, Male, Tablets administration & dosage, Dogs metabolism, Furosemide administration & dosage, Furosemide pharmacokinetics
- Abstract
Background: Furosemide, a diuretic that acts on the loop of Henle, is commonly used to treat congestive heart failure in veterinary medicine. Some owners have difficulty in administering oral tablet medication to animal patients, which leads to noncompliance, especially during long-term administration. Oral disintegrating film (ODF) has the advantages of easy administration via a non-invasive route, rapid dissolution, and low suffocating risk. The objective of this study was to research the pharmacokinetic (PK) profiles and diuretic effect of furosemide after intravenous (IV), orally uncoated tablet (OUT), and newly developed ODF administration in healthy beagle dogs. In this study, a furosemide-loaded ODF (FS-ODF) formulation was developed and five beagle dogs were administered a single dose (2 mg/kg) of furosemide via each route using a cross-over design., Results: The most suitable film-forming agent was sodium alginate; thus, this was used to develop an ODF for easy drug administration. No significant differences were detected in the PK profiles between OUT and FS-ODF. In the blood profiles, the concentration of total protein was significantly increased compared to the baseline (0 h), whereas no significant difference was detected in the concentration of creatinine and hematocrit compared to the baseline. FS-ODF resulted in a similar hourly urinary output to OUT during the initial 2 h after administration. The urine specific gravity was significantly decreased compared to the baseline in each group. The peak times of urine electrolyte (sodium and chloride) excretion per hour were 1 h (IV), 2 h (OUT), and 2 h (FS-ODF)., Conclusions: These results suggest that the PK/PD of furosemide after administration of newly developed FS-ODF are similar to those of OUT in healthy dogs. Therefore, the ODF formulation has the benefits of ease and convenience, which would be helpful to owners of companion animals, such as small dogs (< 10 kg), for the management of congestive heart failure., (© 2021. The Author(s).)
- Published
- 2021
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7. Acceptability of small-sized oblong tablets in comparison to syrup and mini-tablets in infants and toddlers: A randomized controlled trial.
- Author
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Münch J, Meissner T, Mayatepek E, Wargenau M, Breitkreutz J, Bosse HM, and Klingmann V
- Subjects
- Child, Preschool, Dose-Response Relationship, Drug, Female, Humans, Infant, Male, Medication Adherence, Outcome Assessment, Health Care, Patient Safety, Pediatrics methods, Administration, Oral, Complex Mixtures administration & dosage, Deglutition physiology, Dosage Forms, Drug Compounding methods, Tablets administration & dosage
- Abstract
Objective: There is limited evidence for the acceptability of various drug formulations holding the potential to improve medicines administration to children. Suitable formulations need to meet the requirements of pediatric patients. Previous studies have demonstrated the acceptance of mini-tablets. Oblong tablets may carry more active ingredient content per unit than mini-tablets and could be an important alternative when the drug substance requires administration of higher doses. The primary objective was to demonstrate non-inferiority of acceptability of oblong tablets in comparison to 3 ml glucose syrup in children aged 1 to 5 years. Secondary objectives were investigation of acceptability, swallowability and palatability of mini-tablets, oblong tablets and glucose syrup in children between 1 and 5 years., Methods: An open, randomized, single dose two-way cross-over design in two parallel study arms was applied. 280 children were stratified to one of five age groups and randomized to receiving one oblong tablet (2.5 × 6 mm) in comparison either to 3 ml glucose syrup or to three mini-tablets (2 × 2 mm). Acceptability and swallowability were assessed according to pre-defined evaluation criteria. The application of the formulations was video documented to evaluate the palatability., Results: As primary objective, non-inferiority was observed regarding acceptability of the oblong tablet compared to syrup in all age groups (84.4% vs 80.1%, difference 4,29% points with 95% CI of -3.00%,11.57%). For swallowability, superiority of the oblong tablet compared to syrup could be shown (74.5% vs. 53.2%, difference 21.26% points, 95% CI of 11.29%, 31.23%). Regarding palatability, <10% of children demonstrated unpleasant reaction after intake of the oblong tablet or mini-tablets as graded by both raters, however, in contrast up to 40% of children after intake of syrup., Conclusion: Oblong tablets are a promising, safe alternative to liquid drug formulations and administration of multiple mini-tablets in children., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2021
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8. Cutaneous foreign body microemboli-induced occlusive vasculopathy: A complication of illicit intravenous injection of oral opioid tablets.
- Author
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Vu M, Wisell J, and Wohltmann W
- Subjects
- Adult, Analgesics, Opioid administration & dosage, Biopsy, Embolism etiology, Fasciotomy methods, Fatal Outcome, Fingers pathology, Foreign Bodies diagnosis, Foreign-Body Reaction diagnosis, Foreign-Body Reaction surgery, Humans, Injections, Intravenous, Male, Necrosis diagnosis, Necrosis etiology, Patient Compliance psychology, Purpura diagnosis, Purpura etiology, Skin pathology, Substance-Related Disorders complications, Substance-Related Disorders pathology, Tablets administration & dosage, Vasculitis surgery, Analgesics, Opioid adverse effects, Embolism diagnosis, Skin Diseases, Vascular pathology, Vasculitis pathology
- Abstract
Occlusive nonvasculitic vasculopathy is a process characterized clinically by retiform purpura and potential ulceration and necrosis of affected areas, secondary to blockage of small vessels without associated inflammatory vasculitis. Intravascular injection of foreign material is known to cause distal ischemia and necrosis due to thrombosis, local vasoconstriction, or microemboli formation. A 27-year-old male presented with retiform purpura and worsening distal fingertip necrosis of the right upper extremity accompanied by suspicious intravascular polarizable foreign material identified on skin, muscle, and vascular biopsies. We report a case that highlights concerning complications and dermatopathologic findings of intravascular injection of oral opioid tablets., (© 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2021
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9. Non-Invasive Sweat-Based Tracking of L-Dopa Pharmacokinetic Profiles Following an Oral Tablet Administration.
- Author
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Moon JM, Teymourian H, De la Paz E, Sempionatto JR, Mahato K, Sonsa-Ard T, Huang N, Longardner K, Litvan I, and Wang J
- Subjects
- Administration, Oral, Enzymes, Immobilized chemistry, Humans, Hydrogels chemistry, Levodopa administration & dosage, Levodopa chemistry, Monophenol Monooxygenase chemistry, Oxidation-Reduction, Tablets administration & dosage, Tablets chemistry, Tablets pharmacokinetics, Biosensing Techniques methods, Drug Monitoring methods, Electrochemical Techniques methods, Levodopa pharmacokinetics, Sweat chemistry
- Abstract
Levodopa (L-Dopa) is the "gold-standard" medication for symptomatic therapy of Parkinson disease (PD). However, L-Dopa long-term use is associated with the development of motor and non-motor complications, primarily due to its fluctuating plasma levels in combination with the disease progression. Herein, we present the first example of individualized therapeutic drug monitoring for subjects upon intake of standard L-Dopa oral pill, centered on dynamic tracking of the drug concentration in naturally secreted fingertip sweat. The touch-based non-invasive detection method relies on instantaneous collection of fingertip sweat on a highly permeable hydrogel that transports the sweat to a biocatalytic tyrosinase-modified electrode, where sweat L-Dopa is measured by reduction of the dopaquinone enzymatic product. Personalized dose-response relationship is demonstrated within a group of human subjects, along with close pharmacokinetic correlation between the finger touch-based fingertip sweat and capillary blood samples., (© 2021 Wiley-VCH GmbH.)
- Published
- 2021
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10. Association between pill burden and interdialytic weight gain in patients with hemodialysis: A multi-center cross-sectional study.
- Author
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Murasawa M, Uehara A, Suzuki T, Shimizu S, Kojima S, Uchida D, Okamoto T, Naganuma T, Sasaki S, Imai N, Chikaraishi A, Matsukawa S, Kawarazaki H, Sakurada T, and Shibagaki Y
- Subjects
- Aged, Cross-Sectional Studies, Female, Humans, Japan, Male, Quality of Life, Risk Factors, Renal Dialysis, Tablets administration & dosage, Weight Gain
- Abstract
High daily pill burden affects quality of life and mortality. High interdialytic weight gain (IDWG) is associated with increased mortality. We examined the association between pill burden and IDWG in hemodialysis patients. This cross-sectional study was conducted in six dialysis centers in Japan in June 2017. The exposure was the number of daily tablets, and outcome was defined as 1 day of relative IDWG divided by post-dialysis weight from the previous session. Among 188 outpatients (mean age, 68.7 [SD, 10.3] years; men, 67.0%; median dialysis vintage, 76.0 [interquartile range, 36.5, 131.5] months), the mean number of daily tablets was 19.7 ± 9.9, and mean relative weight gain was 3.5 ± 1.2%. Multiple linear regression analysis showed a regression coefficient of 0.021 (95% confidence interval: 0.004-0.039), indicating that one additional tablet prescription increased the IDWG by 0.021%. In hemodialysis patients, the daily pill burden was a significant, independent risk for increased relative IDWG., (© 2020 International Society for Apheresis, Japanese Society for Apheresis, and Japanese Society for Dialysis Therapy.)
- Published
- 2021
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11. Feasibility of developing children's Pill School within a UK hospital.
- Author
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Rashed AN, Terry D, Fox A, Christiansen N, and Tomlin S
- Subjects
- Administration, Oral, Adolescent, Child, Child, Preschool, Education methods, Feasibility Studies, Humans, Inpatients education, Parents education, Patient Education as Topic methods, Pharmaceutical Preparations administration & dosage, Pharmaceutical Solutions therapeutic use, Prospective Studies, Tablets administration & dosage, United Kingdom epidemiology, Deglutition physiology, Hospitals statistics & numerical data, Pharmaceutical Solutions administration & dosage, Schools statistics & numerical data
- Abstract
Objective: We assessed the feasibility of introducing an intervention (children's Pill School-PS) within a UK hospital to provide swallowing training for children, identified the proportion of children who can be switched from oral liquid medicines to pills and assessed children/parents' opinions about the PS training., Methods: 30 inpatient children (aged 3-18 years; taking oral liquid medicines; their liquid medications assessed suitable for switching to pills; can (and their parents) speak/understand English were included. Training sessions were delivered using hard sweets of different sizes., Results: 87% (26) of children successfully learnt how to swallow pills after one training session (mean duration 14.5 min), and 92% (24) were discharged on pills. 75 prescribed oral liquid medications were deemed suitable for switching to pills. Of these, 89% (67) were switched successfully., Conclusion: Children as young as 3 years were successful in swallowing pills after training. Providing children PS training session within hospital is feasible and acceptable to children and their parents., Competing Interests: Competing interests: ANR was funded by the PRUK. ST and DT received fund for their contribution on the project., (© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2021
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12. Field study to investigate the effectiveness and safety of a novel orally administered combination drug product containing milbemycin oxime and lotilaner (Credelio ® Plus) against natural flea and tick infestations on dogs presented as veterinary patients in Europe.
- Author
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Forster S, Wiseman S, and Snyder DE
- Subjects
- Administration, Oral, Animals, Cohort Studies, Dog Diseases parasitology, Dogs, Drug Combinations, Europe, Female, Macrolides administration & dosage, Male, Oxazoles administration & dosage, Random Allocation, Tablets administration & dosage, Tablets therapeutic use, Thiophenes administration & dosage, Dog Diseases drug therapy, Flea Infestations drug therapy, Flea Infestations veterinary, Macrolides therapeutic use, Oxazoles therapeutic use, Thiophenes therapeutic use, Tick Infestations drug therapy, Tick Infestations veterinary
- Abstract
Background: A pivotal randomised, blinded, positive-controlled, multicentre, European field study was conducted to evaluate the effectiveness and safety of a novel combination tablet of lotilaner and milbemycin oxime (Credelio
® Plus) administered orally to client-owned dogs naturally infested with fleas and/or ticks., Methods: In this field study, households with flea- or tick-infested dog(s) were enrolled on Day 0 into the study to provide data for either the tick or flea infestation cohorts. Households were randomised in a 2:1 ratio to receive either the combination investigational product (IP, Credelio Plus® tablets) or the control product (CP: Nexgard Spectra® tablets). Dogs were administered IP (flea cohort n = 135; tick cohort: n = 147) or CP (flea cohort: n = 67; tick cohort: n = 74) once every 4 weeks for a total of three times at a dose rate of 20.0-41.5 mg/kg bodyweight lotilaner and 0.75-1.53 mg/kg bodyweight milbemycin oxime (IP) or as recommended (CP). Percentage reduction was calculated by comparing individual dog flea and tick counts at each assessed post-treatment time point to their respective baseline (pre-treatment) infestation. Resolution of the clinical signs of flea allergy dermatitis (FAD) was assessed in flea-allergic dogs on the days that flea counts were performed., Results: Flea effectiveness of Credelio Plus® after 3 consecutive monthly treatments was 100% against Ctenocephalides felis, C. canis and Pulex irritans. Tick effectiveness of Credelio Plus® over the same time frame was 99.3% for Ixodes ricinus and 100% against Rhipicephalus sanguineus (s.l.). Flea effectiveness of the CP after three consecutive monthly treatments was 100% against C. felis, C. canis and P. irritans. Tick effectiveness of the CP over the same time frame was 99.8% for I. ricinus and 100% against R. sanguineus. Credelio Plus® was well tolerated based on the safety assessments in all treated dogs in this field study. Within both treatment groups there was a reduction in total FAD scores from baseline., Conclusions: This pivotal European field study demonstrated the excellent effectiveness and safety of a combination of lotilaner and milbemycin oxime (Credelio Plus® ) administered orally to dogs naturally infested with fleas and/or ticks.- Published
- 2021
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13. Uterine fibroids treatment: do we have new valid alternative? Experiencing the combination of vitamin D plus epigallocatechin gallate in childbearing age affected women.
- Author
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Miriello D, Galanti F, Cignini P, Antonaci D, Schiavi MC, and Rago R
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- Administration, Oral, Adult, Antineoplastic Agents administration & dosage, Catechin administration & dosage, Catechin therapeutic use, Female, Humans, Leiomyoma diagnosis, Myoma diagnosis, Tablets administration & dosage, Tablets therapeutic use, Uterine Neoplasms diagnosis, Vitamin D administration & dosage, Antineoplastic Agents therapeutic use, Catechin analogs & derivatives, Leiomyoma drug therapy, Myoma drug therapy, Uterine Neoplasms drug therapy, Vitamin D therapeutic use
- Abstract
Objective: Uterine myomas are the most common benign tumors in females, and at least 25% of affected patients experience symptoms severe enough to need treatment, like heavy hemorrhage, pelvic pain, and infertility. Currently, a non-invasive approach is preferred in women of childbearing age who desire pregnancy. The aim of our study was to determine the effect of oral supplementation with a combination of vitamin D plus epigallocatechin gallate (EGCG) and vitamin B6 in women with myomas., Patients and Methods: Between April and December 2020, we enrolled 95 women of childbearing age, afferent to our hospital, displaying at least one myoma with a diameter <4 cm. Patients were divided in two groups: 41 women were treated daily with two tablets of 25 μg vitamin D + 150 mg EGCG + 5 mg vitamin B6 for 4 months; 54 women, representing the control group, received no treatment. Total volume and vascularization of myomas were analyzed ultrasonographically. Bleeding and pelvic pain was also evaluated, as well as patients' quality of life and health through questionnaire Short Form Health Survey (SF-36) and Patient Global Impression of improvement (PGI-I)., Results: After treatment myomas' total volume and peripherical vascularization significantly decreased respectively by 37.9% (p<0.001) and 7.7%. On the other hand, we observed an increase in myomas' volume by 5.5 % and of peripherical vascularization by 5% in the control group. The treated group reported an improvement in SF-36 (p<0.001) and PGI-I (85.4%) questionnaire scores., Conclusions: We demonstrated, in young women who want to preserve fertility, that the combined supplementation of vitamin D, EGCG, and vitamin B6 reduced myomas' volume and improved patients' quality of life, without side effects.
- Published
- 2021
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14. Efficacy of milbemycin oxime/afoxolaner chewable tablets (NEXGARD SPECTRA ® ) against Capillaria aerophila and Capillaria boehmi in naturally infected dogs.
- Author
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Di Cesare A, Morelli S, Morganti G, Simonato G, Veronesi F, Colombo M, Berlanda M, Lebon W, Gallo M, Beugnet F, and Traversa D
- Subjects
- Administration, Oral, Animals, Anthelmintics administration & dosage, Capillaria classification, Capillaria genetics, Dog Diseases drug therapy, Dog Diseases parasitology, Dogs, Isoxazoles administration & dosage, Macrolides administration & dosage, Naphthalenes administration & dosage, Anthelmintics therapeutic use, Capillaria drug effects, Enoplida Infections drug therapy, Enoplida Infections veterinary, Isoxazoles therapeutic use, Macrolides therapeutic use, Naphthalenes therapeutic use, Tablets administration & dosage
- Abstract
Background: Capillaria aerophila and Capillaria boehmi parasitize the respiratory system of wild and domestic carnivores. Capillaria aerophila inhabits the trachea and bronchi of dogs and cats, while C. boehmi affects the nasal cavities and sinuses of dogs. In dogs the infection may be subclinical or characterized by varying respiratory distress., Methods: The present study evaluated the efficacy of an oral formulation containing milbemycin oxime and afoxolaner (NEXGARD SPECTRA
® ) in dogs naturally infected with C. aerophila and/or C. boehmi from three enzootic areas of Italy. Dogs were enrolled pending fecal examination and molecular confirmation of respiratory capillarioses. Dogs were allocated in two groups: Group 1 (G1, 25 dogs), treated with a negative control product with no anthelmintic activity (afoxolaner, NEXGARD® ), and Group 2 (G2, 26 dogs), treated with NEXGARD SPECTRA® . At the day of treatment administration (Day 0), all dogs were clinically examined. Dogs were again subjected to clinical and fecal examinations at Days 28 (± 4) and 56 (± 2). The primary criterion for treatment efficacy was the reduction of fecal Capillaria egg counts in G2 compared with G1. The regression of/recovery from baseline clinical signs was considered as a further efficacy criterion., Results: Percentage reduction of fecal Capillaria egg counts in the NEXGARD SPECTRA® group compared to the control group was > 97% on Day 28 and 100% on Day 56, respectively (p < 0.05 for both time points). Twelve of the 13 dogs in the NEXGARD SPECTRA® group with respiratory signs prior to treatment were free of clinical signs at the end of the study. Conversely, the six control group dogs with respiratory signs prior to treatment remained symptomatic., Conclusions: Results of the present study showed that NEXGARD SPECTRA® was safe and highly efficacious in the reduction of C. aerophila and C. boehmi eggs after one treatment with a complete reduction of the egg output after the second administration associated with a recovery from respiratory signs.- Published
- 2021
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15. Pharmacokinetic and Pharmacodynamic Comparison of Two Formulations of a Fixed-Dose Combination of Gemigliptin/Rosuvastatin 50/20 mg: A Randomized, Open-Label, Single-Dose, Two-Way Crossover Study.
- Author
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Yang E, Yoo H, Jang IJ, Yu KS, and Lee S
- Subjects
- Adult, Cross-Over Studies, Drug Compounding, Female, Healthy Volunteers, Humans, Male, Middle Aged, Molecular Structure, Piperidones administration & dosage, Pyrimidines administration & dosage, Rosuvastatin Calcium administration & dosage, Tablets administration & dosage, Piperidones pharmacokinetics, Pyrimidines pharmacokinetics, Rosuvastatin Calcium pharmacokinetics
- Abstract
Purpose: A fixed-dose combination (FDC) of gemigliptin/rosuvastatin 50/20 mg as a monolayer tablet has been used to treat patients with both type 2 diabetes mellitus and dyslipidemia. To improve the stability of the FDC, a new FDC formulation as a bilayer tablet was developed. This study aimed to compare the pharmacokinetics (PKs) and pharmacodynamics (PDs) of the FDC of gemigliptin/rosuvastatin 50/20 mg between the newly developed bilayer tablet and the approved monolayer tablet in healthy subjects., Materials and Methods: A randomized, open-label, single-dose, two-treatment, two-way crossover study was conducted. Subjects received a single dose of the FDC of gemigliptin/rosuvastatin 50/20 mg as the bilayer tablet or the monolayer tablet in each period with a 7-day washout. For PK and PD analyses, serial blood samples were collected up to 72 hours after dosing to determine plasma concentrations of gemigliptin, its active metabolite LC15-0636 and rosuvastatin, and plasma dipeptidyl peptidase-4 (DPP-4) activity. PK and PD parameters were calculated using non-compartmental methods and compared between the two formulations., Results: A total of 48 healthy subjects were randomized, and 45 subjects completed the study. The concentration-time profiles of gemigliptin, LC15-0636 and rosuvastatin were comparable between the two formulations. All geometric mean ratios (90% confidence intervals) of the bilayer tablet to the monolayer tablet for maximum plasma concentration and area under concentration-time curve from 0 to last measurable time point of the three compounds fulfilled the bioequivalence criteria of 0.80-1.25. Likewise, area under plasma DPP-4 activity inhibition from baseline-time curve from 0 to last measurable time point and maximum inhibition of plasma DPP-4 activity were similar between the two formulations., Conclusion: The FDC of gemigliptin/rosuvastatin 50/20 mg as the bilayer tablet showed equivalent PK and PD properties with the FDC of gemigliptin/rosuvastatin 50/20 mg as the monolayer tablet in healthy subjects. These results suggest that the newly developed bilayer tablet can become an alternative formulation to the commercially available monolayer tablet., Competing Interests: The authors report no conflicts of interest in this work., (© 2021 Yang et al.)
- Published
- 2021
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16. Hydroxychloroquine lung pharmacokinetics in critically ill patients with COVID-19.
- Author
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Ruiz S, Concordet D, Lanot T, Georges B, Goudy P, Baklouti S, Mané C, Losha E, Vinour H, Rousset D, Lavit M, Minville V, Conil JM, and Gandia P
- Subjects
- Adult, Aged, Aged, 80 and over, Antiviral Agents administration & dosage, Antiviral Agents blood, Bronchoalveolar Lavage Fluid chemistry, Critical Illness, Female, Humans, Hydroxychloroquine administration & dosage, Hydroxychloroquine blood, Intubation, Gastrointestinal, Lung drug effects, Lung virology, Male, Middle Aged, Retrospective Studies, Tablets administration & dosage, Tablets pharmacokinetics, Antiviral Agents pharmacokinetics, Hydroxychloroquine pharmacokinetics, COVID-19 Drug Treatment
- Abstract
Different dosage regimens of hydroxychloroquine (HCQ) have been used to manage COVID-19 (coronavirus disease 2019) patients, with no information on lung exposure in this population. The aim of our study was to evaluate HCQ concentrations in the lung epithelial lining fluid (ELF) in patients infected with SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), the virus that causes COVID-19. This was a retrospective, observational, multicentre, pharmacokinetic study of HCQ in critically ill COVID-19 patients. No additional interventions or additional samples compared with standard care of these patients were conducted in our teaching hospital. We included all intubated COVID-19 patients treated with crushed HCQ tablets, regardless of the dosage administered by nasogastric tube. Blood and bronchoalveolar lavage samples (n = 28) were collected from 22 COVID-19 patients and total HCQ concentrations in ELF were estimated. Median (interquartile range) HCQ plasma concentrations were 0.09 (0.06-0.14) mg/L and 0.07 (0.05-0.08) mg/L for 400 mg × 1/day and 200 mg × 3/day, respectively. Median HCQ ELF concentrations were 3.74 (1.10-7.26) mg/L and 1.81 (1.20-7.25) for 400 mg × 1/day and 200 mg × 3/day, respectively. The median ratio of ELF/plasma concentrations was 40.0 (7.3-162.7) and 21.2 (18.4-109.5) for 400 mg × 1/day and 200 mg × 3/day, respectively. ELF exposure is likely to be underestimated from HCQ concentrations in plasma. In clinical practice, low plasma concentrations should not induce an increase in drug dosage because lung exposure may already be high., (Copyright © 2020 Elsevier Ltd and International Society of Antimicrobial Chemotherapy. All rights reserved.)
- Published
- 2021
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17. The preparation and validation of chitosan tablets that rapidly disperse and disintegrate as an oral adsorbent in the treatment of lifestyle-related diseases.
- Author
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Anraku M, Mizukai Y, Maezaki Y, Kawano K, Okazaki S, Takeshita K, Adachi T, Otagiri M, Iohara D, and Hirayama F
- Subjects
- Administration, Oral, Adsorption, Animals, Chitosan metabolism, Chronic Disease drug therapy, Crystallization, Drug Carriers chemistry, Gastrointestinal Tract diagnostic imaging, Gastrointestinal Tract metabolism, Magnetic Resonance Imaging, Male, Powders chemistry, Rats, Rats, Wistar, Tablets metabolism, Temperature, Water chemistry, Chitosan administration & dosage, Chitosan chemistry, Life Style, Sorption Detoxification methods, Tablets administration & dosage, Tablets chemistry
- Abstract
A carrier and an oral absorbent for the treatment of chronic diseases in the form of a tablet was prepared from granulated chitosan (G-CS) particles. The resulting tablet was highly dispersible and disintegrated rapidly (< 30 s) in aqueous media. The non-granulated chitosan (N-CS) powder partially crystallized (2θ = 12-15° and 20°) during wet granulation to give G-CS crystalline particles. The rate of penetration of water into G-CS aggregates was markedly faster than that for N-CS aggregates, as evidenced by the ease of disintegration of the tablets. The rapid disintegration and dispersion of the tablets in vivo was confirmed by MRI measurements after the oral administration of the both tablets to rats. Some ureic toxins were adsorbed more strongly to G-CS tablets than on N-CS tablets. The results suggest that G-CS tablets have great potential for use as a fast disintegrating carrier and as an oral adsorbent in lifestyle-related diseases., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
- Published
- 2021
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18. Vaginal tablets of dequalinium chloride 10 mg versus clotrimazole 100 mg for vaginal candidiasis: a double-blind, randomized study.
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Thamkhantho M and Chayachinda C
- Subjects
- Adult, Candidiasis, Vulvovaginal diagnosis, Double-Blind Method, Female, Humans, Middle Aged, Outcome Assessment, Health Care, Tablets administration & dosage, Thailand, Vaginal Creams, Foams, and Jellies, Anti-Infective Agents, Local therapeutic use, Antifungal Agents therapeutic use, Candidiasis, Vulvovaginal drug therapy, Clotrimazole therapeutic use, Dequalinium therapeutic use
- Abstract
Purpose: To compare the clinical response, microscopic examination and fungal culture between dequalinium chloride (DQC) and clotrimazole (CT) for treating vaginal candidiasis (VC)., Methods: The double-blind, randomized study was conducted from September 2014 to September 2016 at Siriraj Hospital, Thailand. Eligible participants were Thai women diagnosed with VC by microscopic examination. The exclusion criteria included immunocompromised conditions, consumption of antifungal drugs, and having recurrent VC. Each participant was randomized with a 1:1 allocation to receive six vaginal tablets of 100 mg CT or 10 mg DQC. Two visits included 10 ± 2 days (C1) and 38 ± 4 days (C2). Outcome measures were improvement of VC symptoms, microscopic examination, culture, satisfaction and tolerability., Results: Of 155 eligible participants, 150 were randomized and allocated into CT (N = 76) and DQC (N = 74). The average age was 31.1 ± 7.2 years. Comparable improvement of clinical response was demonstrated (OR at C1 0.79, 95% CI 0.56-1.10, p = 0.197; and OR at C2 0.99, 95% CI 0.69-1.43, p = 0.985). Of CT and DQC groups, the microscopic examination was positive at 11/75 (14.9%) vs 18/72 (25.3%) at C1 and 18/74 (24.3%) vs 28/66 (42.4%) at C2. And the culture was positive at 25/75 (33.8%) vs 46/72 (65.7%) at C1 and at 26/74 (36.6%) vs 46/66 (69.7%) at C2. Most participants had high satisfaction and tolerability and none reported any side effects., Conclusion: DQC and CT show comparable clinical response but CT results in greater improvement of microscopic examination and fungal culture., Clinical Trial Registration: The Clinical Trial Registry number was NCT02242695. (September 17, 2014).
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- 2021
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19. Single-dose pharmacokinetics of amphetamine extended-release tablets compared with amphetamine extended-release oral suspension.
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Pardo A, Kando JC, King TR, Rafla E, and Herman BK
- Subjects
- Administration, Oral, Adolescent, Adult, Amphetamine pharmacokinetics, Deglutition, Dopamine Agents pharmacokinetics, Female, Humans, Male, Mastication, Middle Aged, Tablets administration & dosage, Tissue Distribution, Amphetamine administration & dosage, Dopamine Agents administration & dosage, Drug Liberation
- Abstract
Objective: Evaluate the relative bioavailability of single-dose amphetamine extended-release tablet (AMPH ER TAB) 20 mg, swallowed whole or chewed, and amphetamine extended-release oral suspension (AMPH EROS) 2.5 mg/mL; evaluate food effect on AMPH ER TAB., Methods: Healthy volunteers (18-55 years) were randomized to 1 dose of AMPH ER TAB 20 mg swallowed (fasted), chewed (fed/fasted), or 20 mg AMPH EROS (fasted). A crossover study design was used. Plasma samples were collected each period predose and at time points to 60 hours postdose. d- and l-amphetamine were measured and pharmacokinetic (PK) was calculated (90% confidence intervals of the ratios of the plasma levels) for AUC0-t, AUC0-∞, and Cmax. Comparative relative bioavailability between formulations was determined when ratios were within 80% and 125%. Safety was also assessed., Results: Thirty-two subjects completed the study. AMPH ER TAB swallowed versus AMPH EROS (fasted): for d- and l-amphetamine, the total and peak exposure was similar: d: AUC0-t: 100.68% to 108.08%, AUC0-∞: 101.47% to 109.52%, Cmax: 98.10% to 103.17%; l: AUC0-t: 100.31% to 108.57%, AUC0-∞: 101.27% to 111.09%, Cmax: 98.2% to 103.37%. For d- and l-amphetamine when the tablet is swallowed whole, Tmax was 5.00 hours (with a range of 2.00-9.00 hours). AMPH ER TAB chewed versus AMPH EROS (fasted): for d- and l-amphetamine, the total and peak exposure was similar: d: AUC0-t: 99.23% to 106.62%, AUC0-∞: 99.58% to 107.59%, Cmax: 99.91% to 105.14%; l: AUC0-t: 98.16% to 106.35%, AUC0-∞: 98.44% to 108.11%, Cmax: 99.53% to 104.75%. For d- and l-amphetamine when the tablet has been chewed, Tmax was 5.00 hours (with a range of 3.00-7.00 hours). PK results were similar for patients in the fasted and fed groups, indicative of no presence of food effect. No serious adverse events (AEs) were reported, overall AE profiles between the tablet and oral suspension were comparable without any unanticipated safety concerns., Conclusions: Single doses of AMPH ER TAB for both d- and l-amphetamine demonstrated comparable bioavailability to a 20 mg dose of AMPH EROS, 2.5 mg/mL under fasted conditions when chewed and swallowed whole, and demonstrated equivalent peak and overall exposure without apparent food effect. AMPH ER TAB was well-tolerated and consistent with adverse events noted in other amphetamine formulations.
- Published
- 2020
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20. The Effect of Streptococcus salivarius K12 on Halitosis: a Double-Blind, Randomized, Placebo-Controlled Trial.
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He L, Yang H, Chen Z, and Ouyang X
- Subjects
- Administration, Oral, Adult, Double-Blind Method, Female, Halitosis physiopathology, Humans, Male, Sulfur Compounds analysis, Sulfur Compounds metabolism, Tablets administration & dosage, Tongue drug effects, Tongue Diseases physiopathology, Halitosis therapy, Probiotics therapeutic use, Streptococcus salivarius physiology, Tongue Diseases therapy
- Abstract
This study was to evaluate the effect of Streptococcus salivarius K12 on tongue coating-associated halitosis. Twenty-eight subjects having tongue coating-associated halitosis were randomly divided into either a test or control group. For each of the 30 days, the test subjects sucked S. salivarius K12 tablet while the control subjects sucked placebo tablets. All the subjects did not take physical (tongue scraping) and chemical (antiseptic mouth-rinse) oral cavity pretreatment prior to use of the tablets. At baseline, and on the 1st, 7th, and 14th day after completing the course of tablets, the subjects were assessed for their organoleptic test (OLT) scores, volatile sulfur compound (VSC) levels, and tongue coating scores (TCS). During the course, all subjects kept their routine oral care habits without scraping their tongue coating. Plaque index, probing depth, and bleeding index were recorded at baseline and at the completion of the trial. On the 1st day following the end of tablet use, the OLT scores and VSC levels had significantly decreased in the test group when compared with the baseline values (P = 0.001 and P = 0.012). The TCS in the test group were also significantly decreased (P = 0.05). At days 7 and 14, the OLT scores in the test group were still significantly lower than the baseline levels (P = 0.006 and P = 0.039 respectively). However, there were no statistical differences with OLT, VSC, and TCS between the test group and the placebo group by analysis of multi-level regression model. The use of S. salivarius K12 did not have significant effect on halitosis with tongue coating cause when the tongue coating was not physically or chemically pre-treated, which implies removing tongue coating is required before Streptococcus salivarius K12 use.
- Published
- 2020
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21. The KidzMed project: teaching children to swallow tablet medication.
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Tse Y, Vasey N, Dua D, Oliver S, Emmet V, Pickering A, and Lim E
- Subjects
- Adolescent, Age Factors, Child, Child, Preschool, Deglutition, Humans, Administration, Oral, Patient Education as Topic methods, Tablets administration & dosage
- Abstract
Tablets are safer, more convenient and cheaper than liquid medications. Children and young people (CYP) often remain on liquids due to habit, reluctance to change or staff and parents' lack of knowledge about switching to tablets. We describe a quality improvement project to train staff and embed a system of converting eligible children to tablet medication. A series of tests of change were made including training, making kit available, publicity and developing team protocols. In 3 months, 21 out of 25 eligible CYP were successfully converted with added benefit of saving £46 588 per year. Switching children to tablets is simple but requires whole team engagement, culture change of expectations and available resources., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2020
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22. Impact of Nuun Electrolyte Tablets on Fluid Balance in Active Men and Women.
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Pence J and Bloomer RJ
- Subjects
- Adult, Athletes, Beverages, Cross-Over Studies, Dehydration etiology, Dietary Carbohydrates administration & dosage, Exercise physiology, Female, Healthy Volunteers, Humans, Male, Tablets administration & dosage, Young Adult, Dehydration therapy, Drinking physiology, Electrolytes administration & dosage, Fluid Therapy methods, Water-Electrolyte Balance drug effects
- Abstract
Background: Maintaining adequate hydration is important for overall health and has major implications for athletes involved in physically demanding tasks. While water is viewed as an effective means to rehydrate, and is inexpensive and readily available, electrolyte beverages appear to be more beneficial, in particular for athletes who routinely lose electrolytes through sweating. Nuun tablets contain a mix of electrolytes and are quickly dissolved in water to create an electrolyte-rich beverage. We determined the impact of Nuun tablets on the fluid balance of healthy, exercise-trained men and women at rest., Methods: Eight men (25.9 ± 4.5 yrs) and 10 women (28.2 ± 9.4 yrs) ingested either water only or water with Nuun electrolyte tablets, at both a single and double strength concentration, in random order, on three separate occasions separated by approximately one week, in a fasted and euhydrated state. A total of 1 liter of fluid was ingested at each visit over a 30 minute period. Urine was collected from each subject at 0, 1, 2, 3, and 4 hours post-ingestion. Urine mass values were used to calculate fluid balance and the beverage hydration index (BHI; i.e., the volume of urine produced after drinking the Nuun beverages, relative to that of water only-control condition). Heart rate and blood pressure were measured throughout the four-hour period, while body weight was measured at the start and end of the experiment., Results: Neither heart rate nor blood pressure were impacted by beverage consumption. Nuun tablets resulted in a lower urine output compared to water, with fluid balances for both concentrations more favorable compared to water ( p < 0.05), beginning at 2 h post-ingestion and continuing at the 3 h and 4 h times. Body weight loss was less with Nuun at the single dose (0.38 kg; p = 0.02) and double dose (0.43 kg; p = 0.08), compared to water (0.57 kg). The BHI was higher for Nuun (single dose in particular) compared to water at both 2 h ( p = 0.05) and 4 h ( p = 0.02)., Conclusion: The addition of Nuun electrolyte tablets to water improves the fluid balance and BHI in healthy men and women. Results were similar for both concentrations, suggesting that additional electrolytes are not necessary when in a rested state. Future studies should determine the impact of various concentrations of the Nuun beverage during physical exercise-in particular, exercise in the heat, when sweat loss may be highest.
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- 2020
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23. De-simplifying single-tablet antiretroviral treatments for cost savings in France: From the patient perspectives to a 6-month follow-up on generics.
- Author
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Giraud JS, Doisne M, Chan Hew Wai A, Majerholc C, Fourn E, Sejean K, Trichereau J, Bonan B, and Zucman D
- Subjects
- Adult, Aged, Anti-HIV Agents administration & dosage, Drug Utilization economics, Drugs, Generic administration & dosage, Female, Humans, Male, Middle Aged, Practice Guidelines as Topic, Tablets administration & dosage, Anti-HIV Agents economics, Cost Savings, Drugs, Generic economics, Patient Satisfaction, Tablets economics
- Abstract
In developed countries, most people living with HIV/AIDS are treated with costly brand single-tablet regimens. Given the economic impact, French guidelines recommend using generic antiretroviral therapy when possible to decrease antiretroviral therapy costs. We aimed to study HIV-infected patients' acceptability to switch from a brand single-tablet regimens [abacavir/lamivudine/dolutegravir (Triumeq®) or emtricitabine/tenofovir disoproxil fumarate/rilpivirine (Eviplera®)] to a treatment comprising of two pills: one is a fixed-dose generic combination of 2 Nucleoside Analogs and the second tablet is the third antiretroviral. This study was a prospective observational study in a French hospital. During their follow-up, patients on stable single-tablet regimens were made aware of the possible cost-saving. They were questioned about their willingness and barriers accepting the substitution. Participants chose between the two regimens, either to remain on single-tablet regimens or switch to the de-simplified regimen. Six months later, a second survey was given to the patient who chose to de-simplify and HIV viral load was controlled. The study included 98 patients: 60 receiving emtricitabine/tenofovir disoproxil fumarate/rilpivirine (Eviplera®) and 38 on abacavir/lamivudine/dolutegravir (Triumeq®). Forty-five patients accepted the de-simplified treatment, 37 refused and 16 were undecided and followed the decision offered by their physician. The main reason for unwillingness to switch is the number of pills (77.3%). In multivariate model analysis, male patients (p = 0.001) who have taken antiretroviral therapy for over 20 years (p = 0.04) and who retrieve their treatment in their community hospital (p = 0.03) are more likely to accept the switch. Fifty-one patients accepted to replace their single-tablet regimens and six months later, the majority was satisfied; only four returned to single-tablet regimens because of suspected side effects. Half of the people living with HIV/AIDS in our cohort accepted to switch from brand single-tablet regimens to a two-tablet regimen containing generic drugs within a process that emphasizes health expenditure savings., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2020
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24. Safety evaluation of the interchangeable use of robenacoxib in commercially-available tablets and solution for injection in cats.
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Heit MC, Stallons LJ, Seewald W, Thompson CM, Toutain CE, King SB, and Helbig R
- Subjects
- Administration, Oral, Animals, Anti-Inflammatory Agents, Non-Steroidal adverse effects, Anti-Inflammatory Agents, Non-Steroidal blood, Anti-Inflammatory Agents, Non-Steroidal pharmacokinetics, Cats, Diphenylamine administration & dosage, Diphenylamine adverse effects, Diphenylamine blood, Diphenylamine pharmacokinetics, Electrocardiography drug effects, Electrocardiography veterinary, Female, Injections, Subcutaneous veterinary, Male, Phenylacetates adverse effects, Phenylacetates blood, Phenylacetates pharmacokinetics, Tablets administration & dosage, Anti-Inflammatory Agents, Non-Steroidal administration & dosage, Diphenylamine analogs & derivatives, Phenylacetates administration & dosage
- Abstract
Background: Robenacoxib (Onsior™) is a non-steroidal anti-inflammatory drug developed for canine and feline use for the control of pain and inflammation. It is available as both tablets and solution for injection. The objective of this study was to evaluate the safety of the interchangeable use of commercially available robenacoxib formulations when administered to cats orally using 6 mg tablets and subcutaneously using a solution for injection containing 20 mg/mL. Thirty-four naïve healthy 4-month old cats were enrolled in this 37-day study and were randomized to four groups (three robenacoxib and one control). One robenacoxib group received the maximum recommended dose (MRD) rate of each formulation, while the other two received two and three times this dose rate. The cats underwent three 10-day treatment cycles comprised of seven days of once daily oral administration followed by three days of subcutaneous administration. The third cycle was followed by an additional seven days of oral treatment. The control group received oral empty gelatin capsules or subcutaneous saline injections. Assessment of safety was based on general health observations, clinical observations, physical, ophthalmic, electrocardiographic and neurological examinations, clinical pathology evaluations, food consumption, body weight, and macroscopic and microscopic examinations. Blood samples were collected for toxicokinetic evaluation., Results: Blood concentrations of robenacoxib confirmed systemic exposure of all treated cats. All cats were in good health through study termination and there were no serious adverse events during the study. There were no changes in body weight, food consumption, ophthalmic, physical or neurological examinations during the study. Treatment-related abnormalities were of low occurrence at all doses and included injection site changes (transient edema with minimal or mild, subacute/chronic inflammation histologically) and prolongation of the QT interval. These findings were consistent with previously observed findings in studies with robenacoxib administered separately orally or subcutaneously in cats. Thus, there were no adverse effects that could be attributed specifically to the interchangeable use of oral and injectable robenacoxib., Conclusions: This 37-day laboratory study supports the safety of interchanging robenacoxib injection at a daily dose of 2 mg/kg with robenacoxib tablets at a daily dose of 1 mg/kg, or vice versa.
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- 2020
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25. The shape of the pill: Perceived effects, evoked bodily sensations and emotions.
- Author
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Blazhenkova O and Dogerlioglu-Demir K
- Subjects
- Adolescent, Adult, Female, Humans, Male, Self Report, Tablets administration & dosage, Young Adult, Emotions physiology, Evoked Potentials physiology, Form Perception physiology, Sensation physiology, Tablets chemistry
- Abstract
Current research examined the differential effects of pills' shape (angular vs. curvy) on the perceived efficacy of the medicine, evoked bodily sensations and emotions. We investigated these effects by using different types of angular vs. curved stimuli: abstract drawn shapes (Study 1), 3D-printed mockup pills (Study 2) and photographs of the existing pills (Study 3). Participants were asked to imagine 'taking' angular and curved pills. They had to focus on the bodily sensations and report the evoked activations/deactivations in different body parts. Across three studies, we found that the angular pills evoke overall more activations in the body compared to curvy pills. We further reported differences in the topography of angular vs. curved pills'-triggered sensations in different body parts. Our results also revealed that angularity is linked with an energizing effect while roundness is associated with a calming effect. The shape effects were demonstrated not only in self-reported energized vs. calm subjective feelings but also in performance on a timed cognitive test. Compared to incongruent designs, pill designs (angular vs. curved) congruent with proposed drug benefits (energizing vs. calming) were perceived as more effective. Moreover, we found differences in emotions triggered by pills of different shapes. The present research provided new findings on angularity vs. curvature perception that may be valuable for cognitive psychology, marketing, pharmaceutical and supplements industry, and other applied fields., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2020
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26. Initial posaconazole dosing to achieve therapeutic serum posaconazole concentrations among children, adolescents, and young adults receiving delayed-release tablet and intravenous posaconazole.
- Author
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Bernardo V, Miles A, Fernandez AJ, Liverman R, Tippett A, and Yildirim I
- Subjects
- Administration, Oral, Adolescent, Antifungal Agents therapeutic use, Body Weight, Child, Child, Preschool, Female, Hematologic Diseases complications, Humans, Immunocompromised Host, Invasive Fungal Infections complications, Invasive Fungal Infections therapy, Male, Neoplasms complications, Retrospective Studies, Tablets administration & dosage, Treatment Outcome, Young Adult, Delayed-Action Preparations, Hematologic Diseases therapy, Infusions, Intravenous, Neoplasms therapy, Triazoles administration & dosage, Triazoles blood
- Abstract
Posaconazole is a broad-spectrum antifungal used for prophylaxis and treatment of invasive fungal diseases. There are limited data on the optimal dosing, safety, and efficacy of the DRT and IV formulations in immunocompromised pediatric and adolescent patients. We describe our experience including dosing, plasma trough concentrations, safety, and tolerability. Plasma concentrations ≥.7 µg/mL were considered therapeutic for prophylaxis and ≥1.0 µg/mL for treatment. Fifty-four patients (median age of 16 years) received DRT or IV formulations of posaconazole. Thirty-one (57%) patients received posaconazole for treatment and 23 (43%) for prophylaxis. Overall, 36 (67%) patients achieved targeted initial plasma trough concentrations (median 1.3 µg/mL) (Figure 1). The median daily dose among patients <13 years of age who achieved the targeted initial concentrations was 7.3 mg/kg/day for the DRT formulation and 9.8 mg/kg/day for the IV formulation. The median daily dose among patients ≥13 years of age who achieved the targeted initial concentrations was 4.9 mg/kg/day for the DRT formulation and 5.6 mg/kg/day for the IV formulation. Thirty-six patients (67%) developed transaminitis, mostly grade 1. Our observations show that DRT and IV formulations are safe and effective in immunocompromised children, adolescents, and young adults. Higher dosing per body weight of DRT and IV posaconazole may be required in patients <13 years of age compared with patients 13 years of age and older to achieve therapeutic plasma concentrations. [Figure: see text]., (© 2020 Wiley Periodicals LLC.)
- Published
- 2020
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27. Population Pharmacokinetics of Vemurafenib in Children With Recurrent/Refractory BRAF Gene V600E-Mutant Astrocytomas.
- Author
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Wang H, Long-Boyle J, Winger BA, Nicolaides T, Mueller S, Prados M, and Ivaturi V
- Subjects
- Administration, Oral, Adolescent, Area Under Curve, Astrocytoma genetics, Biological Availability, Biological Variation, Population, Brain Neoplasms genetics, Child, Child, Preschool, Computer Simulation, Drug Administration Schedule, Drug Elimination Routes, Female, Humans, Male, Models, Biological, Mutation, Powders administration & dosage, Protein Kinase Inhibitors administration & dosage, Protein Kinase Inhibitors adverse effects, Protein Kinase Inhibitors blood, Proto-Oncogene Proteins B-raf antagonists & inhibitors, Tablets administration & dosage, Vemurafenib administration & dosage, Vemurafenib adverse effects, Vemurafenib blood, Young Adult, Astrocytoma drug therapy, Brain Neoplasms drug therapy, Protein Kinase Inhibitors pharmacokinetics, Proto-Oncogene Proteins B-raf genetics, Vemurafenib pharmacokinetics
- Abstract
Vemurafenib (Zelboraf) is an orally available BRAF
V600E inhibitor approved for the treatment of unresectable or metastatic BRAFV600E -mutant melanoma. The primary objective of this work was to characterize the pharmacokinetics (PK) of vemurafenib in pediatric patients with recurrent/refractory astrocytomas harboring the BRAFV600E mutation. The study was also designed to evaluate the feasibility of replacing whole vemurafenib tablets with crushed tablets in young children unable to swallow tablets. Twenty-five pediatric patients (median age, 8.8 years; range, 3.3-19.2) with recurrent/refractory BRAFV600E -mutant astrocytomas received whole (n = 19) or crushed (n = 6) vemurafenib tablets twice daily. Plasma samples were collected on days 1, 15, and 22 in cycle 1 of vemurafenib treatment. Descriptive PK analyses demonstrated significant variability (approximately 6-fold) in drug exposure. A 1-compartment model with first-order absorption and elimination was developed by adjusting the vemurafenib PK model previously validated in adults with mutant BRAFV600E melanoma. After inclusion of allometric scaling on total body weight, the model adequately described the PK of vemurafenib in children between a wide age range of 3 to 19 years old. In the crushed-tablet cohort, relative bioavailability was approximately 96% (95% confidence interval, 49%-142%) compared to that seen in pediatric patients receiving whole tablets based on the preliminary comparison analysis results. Moderate intrapatient variability (48%) of vemurafenib clearance was observed. There was significant correlation (R2 = 0.83) between area under the plasma concentration-time curve and trough concentration at steady state. These results will help increase the number of pediatric patients for whom vemurafenib is accessible and facilitate improved dosing in pediatric patients with recurrent/refractory BRAFV600E astrocytomas., (© 2020, The American College of Clinical Pharmacology.)- Published
- 2020
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28. Effects of vaginal administration of conjugated estrogens tablet on sexual function in postmenopausal women with sexual dysfunction: a double-blind, randomized, placebo-controlled trial.
- Author
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Bumphenkiatikul T, Panyakhamlerd K, Chatsuwan T, Ariyasriwatana C, Suwan A, Taweepolcharoen C, and Taechakraichana N
- Subjects
- Administration, Intravaginal, Aged, Atrophy drug therapy, Double-Blind Method, Dyspareunia pathology, Estrogens, Conjugated (USP) therapeutic use, Female, Humans, Middle Aged, Prospective Studies, Tablets therapeutic use, Thailand, Treatment Outcome, Vagina pathology, Vulva pathology, Dyspareunia drug therapy, Estrogens, Conjugated (USP) administration & dosage, Female Urogenital Diseases drug therapy, Postmenopause drug effects, Tablets administration & dosage, Vulva drug effects
- Abstract
Background: Female sexual dysfunction (FSD) is prevalent in women with genitourinary syndrome of menopause (GSM). Vaginal estrogen is effective GSM treatment. This study was primarily aimed to evaluate the effects of vaginal administration of conjugated estrogens tablet on postmenopausal FSD using the Female Sexual Function Index (FSFI). Secondary aims were to evaluate vaginal pH, Vaginal Maturation Value (VMV), Normal Flora Index (NFI) and Most Bothersome Symptoms (MBS) changes., Methods: A double-blind trial was conducted in postmenopausal women with FSD (FSFI ≤26.55). Sixty-seven participants were randomized into two arms; vaginally administered conjugated estrogens tablet (0.625 mg, daily for 3 weeks then twice weekly for 9 weeks, n = 33), or placebo (n = 34)., Results: There was no significant improvement of FSFI observed in estrogens arm compared to placebo in each domain and overall index (p = 0.182). The estrogens significantly improved vaginal pH and VMV, toward more acidity (p = < 0.001), higher VMV (p = < 0.001) and more superficial cells (p = < 0.001). We observed no significant difference in NFI and MBS between arms (p = 0.282, 0.182)., Conclusion: We found no significant changes in FSFI, NFI, and MBS, but significant improvement in vaginal pH and VMV in postmenopausal women with FSD treated with vaginally administered conjugated estrogens tablet. Few side-effects were reported., Trial Registration: Thai Clinical Trial Registry identification number TCTR20180219001 , prospectively registered since 2018-02-19 11:33:21.
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- 2020
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29. Pharmacokinetics of tablet and liquid formulations of oral 6-mercaptopurine in children with acute lymphoblastic leukemia.
- Author
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Larsen RH, Hjalgrim LL, Grell K, Kristensen K, Pedersen LG, Brünner ED, Als-Nielsen B, Schmiegelow K, and Nersting J
- Subjects
- Administration, Oral, Antimetabolites, Antineoplastic administration & dosage, Antimetabolites, Antineoplastic blood, Area Under Curve, Biological Availability, Child, Child, Preschool, Cross-Over Studies, Female, Humans, Male, Mercaptopurine administration & dosage, Mercaptopurine blood, Tablets administration & dosage, Tablets pharmacokinetics, Antimetabolites, Antineoplastic pharmacokinetics, Mercaptopurine pharmacokinetics, Precursor Cell Lymphoblastic Leukemia-Lymphoma drug therapy
- Abstract
Purpose: Mercaptopurine (6MP) is essential to cure childhood acute lymphoblastic leukemia (ALL). A liquid 6MP formulation was recently introduced to facilitate oral 6MP administration, especially to children. Its approval and bioequivalence with 6MP tablet were based on comparative pharmacokinetics in 60 healthy adults. Due to potential pharmacokinetic differences between healthy adults and children with ALL, we compared pharmacokinetics of tablet and liquid 6MP formulations in children with ALL., Methods: Pharmacokinetics of 50 mg 6MP tablet (Puri-Nethol
® ) and 20 mg/ml 6MP liquid suspension (Xaluprine® ) were compared in a non-blinded, random order, single-dose, cross-over study in 16 children with ALL (eight males). 6MP was administered after a 12 h fast, and 6MP plasma concentrations measured consecutively over seven hours post-dose. Pharmacokinetic outcomes were as follows: Area under the curve (AUC), maximum plasma concentration (Cmax ), time to maximum plasma concentration (Tmax ), and terminal half-life (T½ )., Results: Liquid 6MP formulation resulted in a 26% lower AUC (p = 0.02) compared with tablet (median 1215 vs. 1805 h × nmol/l). No significant differences were observed for Cmax, Tmax and T½ (p = 0.28, p = 0.09, p = 0.41, respectively). Based on criteria declared by the World Health Organization the results did not establish non-inferiority of liquid 6MP formulation compared with 6MP tablet., Conclusion: Non-inferiority of liquid 6MP formulation compared with 6MP tablet was not demonstrated. Yet, maintenance therapy doses are adjusted by degree of myelosuppression and not by 6MP dose. Thus, in spite of a lower bioavailability, a liquid 6MP formulation is still desirable in a clinical setting, especially for children. However, if shifting between 6MP formulation is indicated, dose adjustments should be anticipated to maintain equivalent treatment intensity in children with ALL. The study is registered on clinicaltrials.gov (NCT01906671). Date of registration: 24.07.13.- Published
- 2020
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30. Bioequivalence and Bioavailability of an Orodispersible Tablet of Sildenafil Citrate in Healthy Chinese Male Subjects.
- Author
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Lv Y, Luo BY, LaBadie RR, Zhu H, Feng Y, Ernst C, Crownover PH, Liang Y, and Zhao Q
- Subjects
- Administration, Oral, Adult, Area Under Curve, Asian People ethnology, Biological Availability, Cross-Over Studies, Drug Compounding methods, Erectile Dysfunction psychology, Fasting physiology, Healthy Volunteers statistics & numerical data, Humans, Male, Phosphodiesterase 5 Inhibitors administration & dosage, Phosphodiesterase 5 Inhibitors blood, Safety, Sildenafil Citrate administration & dosage, Sildenafil Citrate blood, Tablets administration & dosage, Therapeutic Equivalency, Drug Compounding statistics & numerical data, Erectile Dysfunction drug therapy, Phosphodiesterase 5 Inhibitors pharmacokinetics, Sildenafil Citrate pharmacokinetics
- Abstract
Sildenafil citrate is approved to treat erectile dysfunction. An orally disintegrating tablet (ODT) of sildenafil citrate that does not require swallowing or administration with fluids has been developed. The bioequivalence and bioavailability of sildenafil citrate ODT (50 mg) without and with water were compared with conventional sildenafil citrate tablets (50 mg) in an open-label, randomized crossover study. Healthy Chinese male subjects (n = 36) were allocated to 1 of 6 sildenafil citrate treatment sequences under fasted conditions, and plasma samples for determination of sildenafil concentrations were collected predose through 14 hours postdose. Bioequivalence was demonstrated for sildenafil citrate ODT administered without water relative to the sildenafil citrate tablet administered with water; 90%CIs for the ratios of adjusted geometric means for sildenafil AUC
last , Cmax , and AUCinf (ratio, 101.41%; 90%CI, 95.49%-107.70%; ratio, 93.55%; 90%CI, 84.15%-104.00%; and ratio, 101.03%; 90%CI, 94.80%-107.66%; respectively) were wholly contained within the bioequivalence acceptance range of 80% to 125%, indicating bioequivalence criteria were met. Relative bioavailability of sildenafil citrate ODT administered with water to the sildenafil citrate tablet (50 mg) administered with water was 97.10%, 91.43%, and 97.09% with respect to sildenafil AUClast , Cmax , and AUCinf , respectively (90%CI, 91.43%-03.12%, 82.25%-101.65%, and 90.90%-103.71%, respectively). Both sildenafil citrate formulations were generally well tolerated in healthy Chinese men. Sildenafil citrate ODT administered without or with water was bioequivalent to or met bioequivalence criteria compared with conventional sildenafil citrate tablets administered with water under fasted conditions in healthy Chinese men, thus offering a convenient alternative method of oral administration., (© 2020 Pfizer Inc. Clinical Pharmacology in Drug Development published by Wiley Periodicals LLC on behalf of American College of Clinical Pharmacology.)- Published
- 2020
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31. An Ex Vivo Evaluation of Cenobamate Administered via Enteral Tubes.
- Author
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Ferrari L, Nisman A, Pegan A, and Ursino J
- Subjects
- Administration, Oral, Anticonvulsants administration & dosage, Carbamates administration & dosage, Chlorophenols administration & dosage, Humans, Tablets administration & dosage, Tablets therapeutic use, Tetrazoles administration & dosage, Anticonvulsants therapeutic use, Carbamates therapeutic use, Chlorophenols therapeutic use, Enteral Nutrition, Seizures drug therapy, Tetrazoles therapeutic use
- Abstract
Background: Cenobamate is a new, Food and Drug Administration (FDA)-approved oral antiepileptic drug for treatment of focal seizures in adults. This study examined recovery of cenobamate from suspensions administered through ex vivo enteral feeding tubes., Methods: Suspensions containing 100 and 200 mg of cenobamate were prepared (five duplicates for each dose), passed through five vertically standing tubes, and collected into flasks. The flasks containing the suspensions were rinsed with deionized water, and this content was also injected into the tubes and collected in the flasks. Acetonitrile, isopropyl alcohol, and trifluoroacetic acid were added to the flasks, followed by deionized water to a concentration of 500 (100-mg cenobamate) and 400 (200-mg cenobamate) µg/mL. A 3-mL aliquot from each suspension was placed into a 10-mL flask, diluted to volume, and mixed, resulting in final concentrations of 150 and 120 µg/mL, respectively. All suspensions were analyzed by high-performance liquid chromatography (LC). The % LC recovery of cenobamate was calculated for each suspension, and mean % LC for duplicates., Results: The % LC recovery of cenobamate from the 100-mg suspensions ranged from 96.2 to 99.1%, with mean % LC recovery between 96.3 and 98.3%. The % LC recovery of cenobamate from the 200-mg suspensions ranged from 97.1 to 102.6%, with mean % LC recovery between 98.5 and 101.7%., Conclusion: The mean % LC recovery of cenobamate was within the predetermined acceptable range of 90.0-110.0%, suggesting no adhesion or adsorption of cenobamate to enteral feeding tubes. Delivery of cenobamate suspension via enteral feeding tubes may be a viable route of administration for patients who cannot swallow tablets.
- Published
- 2020
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32. Appropriateness of oral dosage form modification for aged care residents: a video-recorded observational study.
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Sefidani Forough A, Lau ETL, Steadman KJ, Kyle GJ, Cichero JAY, Serrano Santos JM, and Nissen LM
- Subjects
- Administration, Oral, Australia, Humans, Incidence, Queensland, Videotape Recording, Capsules administration & dosage, Health Personnel statistics & numerical data, Homes for the Aged statistics & numerical data, Nursing Homes statistics & numerical data, Tablets administration & dosage
- Abstract
Background Dosage forms of oral medications are frequently modified in aged care facilities by crushing/splitting tablets or opening capsules to facilitate medication administration for residents with swallowing difficulties. These practices pose safety concerns including the risk of adverse events resulting from loss of dose during transfer and alteration in the rate of absorption. Objective To identify the incidence, methods, and appropriateness of oral dosage form modification practices in aged care facilities. Setting A purposive sample of four urban and regional aged care facilities in Queensland, Australia. Method The processes of modification of oral dosage forms were observed and video-recorded using an action camera placed on medication trolleys. Each video was then reviewed and the details of the medication modification processes were recorded in a data collection form. The appropriateness of the practices of dosage form modification was evaluated against existing national guideline (Australian Don't Rush to Crush Handbook). Deviations from the instructions in the guideline were considered as inappropriate practice. Main outcome measure Incidence and characteristics of inappropriate modification of oral dosage forms. Results Oral dosage forms were modified in 25.7% of 810 observed medications. The most common methods of dosage form modification included crushing tablets with a manual crushing device (71.6%), cutting/splitting tablets (20.2%), and opening capsules (4.3%). According to the national guideline, 12.5% of the modification instances were inappropriate. Inappropriate practices were commonly associated with the suboptimal methods of medication preparation where medications were unsuitably modified, mixed, spilled, or incompletely dosed. Conclusion The modification of oral dosage forms seems a common practice in aged care facilities in Queensland. However, some of these modifications do not comply with the requirements of good practice according to existing guidelines. Healthcare workers in aged care facilities need to be supported and upskilled with effective training to promote the best and safest practices of ODF modification.
- Published
- 2020
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33. Posaconazole delayed-release tablets in paediatric haematology-oncology patients.
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Mauro M, Colombini A, Perruccio K, Zama D, D'Amico MR, Calore E, Carraro F, Muggeo P, Tridello G, Baretta V, and Cesaro S
- Subjects
- Administration, Oral, Adolescent, Antifungal Agents therapeutic use, Child, Child, Preschool, Delayed-Action Preparations pharmacokinetics, Delayed-Action Preparations therapeutic use, Female, Humans, Male, Retrospective Studies, Tablets administration & dosage, Triazoles therapeutic use, Antifungal Agents pharmacokinetics, Hematologic Neoplasms microbiology, Mycoses drug therapy, Mycoses prevention & control, Triazoles pharmacokinetics
- Abstract
Background: To date, there are few studies that describe pharmacokinetics, safety and efficacy of posaconazole delayed-release tablet (DRT) formulation in the paediatric population., Objectives: We evaluated retrospectively posaconazole plasma concentrations and safety of posaconazole DRT in paediatric haematology-oncology patients., Patients and Methods: Posaconazole DRT was assessed in 28 haematological paediatric patients with a median age 15 of years (range 5-18) and a median body weight of 50 kg (range 22-83 kg). Twenty-one patients received posaconazole DRT as prophylaxis and 7 patients as therapy., Results: As prophylaxis, the median daily dose was 5.5 mg/kg/day (range 2.2-22.2) with posaconazole trough level ≥ 0.7 μg/mL in 80% by first week, 62.5% by second week and 87.5% by fourth week. As therapy, the median daily dose was 4 mg/kg/day (range 3.3-4.5) with trough level ≥ 1 μg/mL 100% by first week, 80% by second week and 33.4% by fourth week., Conclusions: Posaconazole DRT is feasible in paediatric patients capable to swallow tablets. Specific pharmacokinetic studies are needed., (© 2020 Blackwell Verlag GmbH.)
- Published
- 2020
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34. Comparison of the Pharmacokinetics of Highly Variable Drugs in Healthy Subjects Using a Partial Replicated Crossover Study: A Fixed-Dose Combination of Fimasartan 120 mg and Atorvastatin 40 mg versus Separate Tablets.
- Author
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Hwang JG, Yu KS, and Lee S
- Subjects
- Administration, Oral, Adult, Atorvastatin administration & dosage, Atorvastatin blood, Biphenyl Compounds administration & dosage, Biphenyl Compounds blood, Cross-Over Studies, Dose-Response Relationship, Drug, Drug Combinations, Healthy Volunteers, Humans, Male, Middle Aged, Pyrimidines administration & dosage, Pyrimidines blood, Republic of Korea, Tablets administration & dosage, Tablets pharmacokinetics, Tetrazoles administration & dosage, Tetrazoles blood, Young Adult, Atorvastatin pharmacokinetics, Biphenyl Compounds pharmacokinetics, Pyrimidines pharmacokinetics, Tetrazoles pharmacokinetics
- Abstract
Purpose: A fixed-dose combination (FDC) of fimasartan and atorvastatin is used to treat hypertension and dyslipidemia. The peak plasma concentration (C
max ) of fimasartan and atorvastatin has a large intra-subject variability with a maximum coefficient of variation of 65% and 48%, respectively. Therefore, both drugs are classified as highly variable drugs. The purpose of this study was to compare the pharmacokinetics (PK) between a FDC of fimasartan 120 mg and atorvastatin 40 mg versus separate tablets in healthy male Korean subjects., Subjects and Methods: A randomized, single-dose, two-treatment, three-sequence, three-period, partial replicated crossover study was conducted with a 7-day washout interval between periods. Blood samples for fimasartan and atorvastatin were collected until 48 hours after administration in each period. PK parameters were calculated using the non-compartmental method. Geometric mean ratios (GMRs) for PK parameters of FDC to loose combination and their 90% confidence intervals (90% CIs) were estimated., Results: A total of 56 subjects completed the study. GMRs (90% CIs) of the Cmax for fimasartan and atorvastatin were 1.08 (0.93-1.24) and 1.02 (0.92-1.13), respectively. The expanded 90% CIs of both drugs using the intra-subject variability was calculated range of 0.70-1.43 and 0.73-1.38, respectively. The corresponding values of area under the concentration-time curve from zero to the last measurable time point were 1.02 (0.97-1.08) and 1.02 (0.98-1.07), respectively., Conclusion: FDC of fimasartan 120 mg and atorvastatin 40 mg between their loose combination showed similar PK characteristics., Competing Interests: Dr Jun Gi Hwang reports grants from Boryung Pharmaceutical CO., LTD, during the conduct of the study. The authors report no other conflicts of interest in this work., (© 2020 Hwang et al.)- Published
- 2020
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35. Colloidal Silicon Dioxide in Tablet form (Carbowhite) Efficacy in Patients with Acute Diarrhea: Results of Randomized, Double-Blind, Placebo-Controlled, Multi-Center Study.
- Author
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Tieroshyn V, Moroz L, Prishliak O, Shostakovich-Koretska L, Kruglova O, and Gordienko L
- Subjects
- Adult, Antidiarrheals administration & dosage, Antidiarrheals adverse effects, Female, Humans, Male, Middle Aged, Silicon Dioxide administration & dosage, Silicon Dioxide adverse effects, Tablets administration & dosage, Tablets adverse effects, Tablets therapeutic use, Antidiarrheals therapeutic use, Diarrhea drug therapy, Silicon Dioxide therapeutic use
- Abstract
The acute diarrhea is a wide-spread disease. The prescription of enterosorbents is appropriate as a primary measure for the treatment of the acute diarrhea for effective prevention of the fluid and electrolyte loss, as well as method for symptom relief of the attack of the disease. Aim of the study - the antidiarrheal efficacy and safety study of high-dispersion silicon dioxide enterosorbent in tablet dosage form in patients with acute diarrhea. This was randomized, double-blind, placebo-controlled, 4-center study. Acute diarrhea was defined as three and more episodes of watery stool per day either during 48 hours or less before study entry in the patients having normal stool recently. It has been postulated that symptoms and signs of acute diarrhea have to be caused by direct infection of the gastrointestinal tract and did not associated with moderate-to-severe systemic states. 144 patients with established acute diarrhea were randomized into treatment group (enterosorbent "Carbowhite", n = 120) or placebo group. Date collection including severity diarrhea, systemic symptoms was performed at baseline and daily during 7 days. Stool examination and serological assay were performed at baseline. The primary end points were declared as time to complete recovery from acute diarrhea. It has been found that the use of the siliceous enterosorbent ("Carbowhite") allowed to reduce (p < 0.001) the treatment period averagely for 0.9 days (95% confidence interval 0.5-1.2 days) in comparison with placebo. Data of safety monitoring has revealed that both patient groups had negative stool culture, while initiation of antibiotic treatment was run more frequently in placebo group (8.3%) compared to investigational product group (4.1%, P = 0.044). The siliceous enterosorbent "Carbowhite" was well tolerated and reduced the recovery time of the acute episode of the diarrhea in the clinically significant form.
- Published
- 2020
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36. Real-world adherence and persistence for newly-prescribed HIV treatment: single versus multiple tablet regimen comparison among US medicaid beneficiaries.
- Author
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Cohen J, Beaubrun A, Bashyal R, Huang A, Li J, and Baser O
- Subjects
- Adolescent, Adult, Anti-HIV Agents administration & dosage, Databases, Factual, Drug Combinations, Drug Therapy, Combination, Female, Humans, Male, Middle Aged, Retrospective Studies, Tablets administration & dosage, United States, Young Adult, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, Medicaid statistics & numerical data, Medication Adherence statistics & numerical data
- Abstract
Background: Once-daily, single-tablet regimens (STRs) have been associated with improved patient outcomes compared to multi-tablet regimens (MTRs). This study evaluated real world adherence and persistence of HIV antiretroviral therapy (ART), comparing STRs and MTRs., Methods: Adult Medicaid beneficiaries (aged ≥ 18 years) initiating ART with ≥ 2 ART claims during the identification period (January 1, 2015-December 31, 2016) and continuous health plan enrollment for a 12-month baseline period were included. For STRs, the first ART claim date was defined as the index date; for MTRs, the prescription fill claim date for the last drug in the regimen was defined as the index date, and prescription fills were required to occur within a 5-day window. Adherence was assessed in 30-day intervals over a 6-month period, with adherence defined as having less than a 5-day gap between fills. Persistence was evaluated as median number of days on therapy and percent persistence at 12 months. Cox Proportional Hazard models were used to evaluate risk of discontinuation, controlling for baseline and clinical characteristics., Results: A total of 1,744 (STR = 1290; MTR = 454) and 2409 (STR = 1782; MTR = 627) patients newly prescribed ART had available data concerning adherence and persistence, respectively. Average age ranged 40-42 years. The patient population was predominantly male. Adherence assessments showed 22.7% of STR initiators were adherent to their index regimens over a 6-month period compared to 11.7% of MTR initiators. Unadjusted persistence analysis showed 36.3% of STR initiators discontinued first-line therapy compared to 48.8% for MTR initiators over the 2-year study period. Controlling for baseline demographic and clinical characteristics, MTR initiators had a higher risk of treatment discontinuation (hazard ratio [HR] = 1.6, p < 0.0001). Among STRs, compared to the referent elvitegravir(EVG)/cobicistat(COBI)/emtricitabine(FTC)/tenofovir alafenamide(TAF), risk of discontinuation was higher for efavirenz(EFV)/FTC/tenofovir disoproxil fumarate(TDF) (HR = 3.6, p < 0.0001), EVG/COBI/FTC/TDF (HR = 2.8, p < 0.0001), and abacavir (ABC)/lamivudine (3TC)/dolutegravir (DTG) (HR = 1.8, p = 0.004). Among backbones, FTC/TAF was associated with lower risk of discontinuation than FTC/TDF (HR = 4.4, p < 0.0001) and ABC/3TC (HR = 2.2, p < 0.0001)., Conclusions: Among patients newly prescribed ART, STR initiators were significantly less likely to discontinue therapy and had greater adherence and persistence compared to MTR initiators. Regimens containing FTC/TAF as a backbone had higher persistence than those consisting of other backbones.
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- 2020
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37. Comparative health risk assessment of realgar and NiuHuangJieDu tablets based on tissue arsenic levels after multiple oral administration to rats.
- Author
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Wu X, Guan R, Liu Y, Wu S, Song M, and Hang T
- Subjects
- Administration, Oral, Animals, Biological Products pharmacokinetics, Chromatography, High Pressure Liquid methods, Drugs, Chinese Herbal pharmacokinetics, Female, Male, Medicine, Chinese Traditional methods, Rats, Rats, Sprague-Dawley, Risk Assessment methods, Spectrometry, Fluorescence methods, Tablets pharmacokinetics, Tissue Distribution, Arsenic adverse effects, Biological Products administration & dosage, Drugs, Chinese Herbal administration & dosage, Tablets administration & dosage
- Abstract
Ethnopharmacological Relevance: Realgar (As
2 S2 ), a mineral traditional Chinese medicine (TCM), is proved to have great therapeutic effects in clinic and has been widely used in China for hundreds of years. As one of the most popular realgar-containing TCMs, NiuHuangJieDu Tablets (NHJDT) is used as OTC (over-the-counter) drug in daily life for fever relieving, detoxicating, as well as cure of sore throat and gingival swelling. However, the safety of realgar and its-containing TCMs still remains unclear., Aim of the Study: This study was to investigate the accumulation of arsenic in rat body and evaluate the safety of realgar-containing TCMs in vivo., Materials and Methods: The health risk of arsenic was evaluated in rats by tissue distribution and histopathology, as well as arsenic speciation in plasma after multiple oral gavage of low and high doses of realgar and NiuHuangJieDu Tablets (NHJDT), respectively. Total arsenic and arsenic speciation were determined by hydride generation-atomic fluorescence spectrometry (HG-AFS) and high performance liquid chromatography-hydride generation-atomic fluorescence spectrometry (HPLC-HG-AFS), respectively., Results: Arsenic accumulated in rat tissues especially in heart, liver, spleen, lung, kidney, uterus and ovary. Dimethylarsenic acid (DMA) was detected as the predominant species in rat plasma after dosing. In comparison of realgar, NHJDT with co-existing components significantly alleviated tissues injury, and reduced arsenic concentration in rat tissues and plasma., Conclusions: NHJDT with co-existing components combination was relatively safer than realgar, but the accumulation of arsenic was still significant after long-term medication. Therefore, great attentions should be paid to realgar-containing TCMs to avoid toxicity from arsenic accumulation. Moreover, the dose regimen of realgar-containing TCMs should be designed rationally for clinical application. These results may provide useful references for the application of realgar-containing TCMs and might be helpful for the understanding of TCM compound compatibility., (Copyright © 2019 Elsevier B.V. All rights reserved.)- Published
- 2020
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38. Pharmacokinetics of multiple doses of chloramphenicol in fed adult horses.
- Author
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Estell KE, Knych HK, Patel T, Edman JM, and Magdesian KG
- Subjects
- Administration, Oral, Animals, Anti-Bacterial Agents blood, Chloramphenicol blood, Drug Administration Schedule veterinary, Female, Male, Prospective Studies, Tablets administration & dosage, Tablets pharmacokinetics, Anti-Bacterial Agents administration & dosage, Anti-Bacterial Agents pharmacokinetics, Chloramphenicol administration & dosage, Chloramphenicol pharmacokinetics, Horses metabolism
- Abstract
To the authors' knowledge, there have been no studies evaluating the pharmacokinetics of chloramphenicol administered orally to horses at the currently recommended dose of 50 mg/kg PO q6 h for multiple days. The published antimicrobial susceptibility breakpoint is 8.0 ug/mL; it is unknown if this concentration is achievable at the recommended dose rate in horses. The aim of this prospective multi-dose pharmacokinetic study was to perform pharmacokinetic analysis of chloramphenicol after multiple doses. The authors hypothesize that the antimicrobial susceptibility breakpoint will not be reached. Seven healthy adult horses were administered 50 mg/kg chloramphenicol base tablets PO q6 h for 4 days. Blood was collected via venipuncture daily at 4 and 6 h after administration for the first 15 doses. After the 16th dose, an IV catheter was aseptically placed in the right jugular vein and blood was collected at regular intervals for pharmacokinetic analysis. Maximum chloramphenicol concentration was variable between horses (2.1-42.7 μg/mL). The highest average chloramphenicol concentration was just below the susceptibility breakpoint at 7.7 ug/mL while the lowest was well below the breakpoint at 1.5 ug/mL. On average, the time above 8.0 μg/mL was 75 min, considerably less than the recommended 50% of the dosing interval. When chloramphenicol is administered at a dose of 50 mg/kg PO q6 h in horses, the highest reliably achievable steady state concentration for at least half of the dosing interval is 2.0 μg/mL. The established susceptibility breakpoint of 8.0 ug/mL is not achievable in adult horses, and should be re-evaluated., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
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- 2020
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39. Characterization of the buccal and gastric transit of orally disintegrating tablets in humans using gamma scintigraphy.
- Author
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Kambayashi A, Sako K, and Kondo H
- Subjects
- Administration, Oral, Chemistry, Pharmaceutical methods, Cross-Over Studies, Gamma Rays, Humans, Ion Exchange Resins administration & dosage, Mouth metabolism, Radionuclide Imaging methods, Solubility, Tablets administration & dosage, Cheek physiology, Gastric Emptying physiology, Gastric Mucosa metabolism, Mouth Mucosa metabolism, Oral Mucosal Absorption physiology, Stomach physiology, Tablets metabolism
- Abstract
The present study characterized the buccal cavity-emptying and gastric-emptying kinetics of orally disintegrating tablets (ODTs) in fasted humans using gamma scintigraphy.
111 Indium-diethylenetriaminepentaacetic acid and technetium-99 m-labeled ion exchange resin were used as a model soluble drug and insoluble pellet-type drug, respectively, and housed in ODTs. These ODTs were then administered to human subjects with or without ingestion of water, after which scintigraphic images were collected in order to characterize the buccal and gastric transit of the radioactivity. The oral disintegration of the ODTs was extremely rapid, with a mean time of ≤1 min. The buccal emptying of the radioactivity was most rapid for the ODT with a water-soluble radiolabel; however, the ODTs with water-insoluble radiolabels showed buccal emptying with median half-times of ≤2.5 min. The ODT with the soluble radiolabel in subjects without water ingestion showed the most rapid gastric emptying compared with the ODTs with the insoluble radiolabels, the gastric-emptying time of which was highly variable. Further, water ingestion did not markedly affect the gastric-emptying time of the tablets with the water-soluble model drug. The observations in the present clinical study will help clarify the in vivo performance of ODTs in humans., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2019 Elsevier B.V. All rights reserved.)- Published
- 2020
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40. Comparison of Pharmacokinetics of a Fixed-Dose Combination of Amlodipine/Losartan/Rosuvastatin with Concomitant Administration of Amlodipine/Losartan and Rosuvastatin in Healthy Volunteers.
- Author
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Yoon DY, Park SI, Jung JA, Kim YI, Jang IJ, and Chung JY
- Subjects
- Administration, Oral, Adult, Amlodipine administration & dosage, Cross-Over Studies, Dose-Response Relationship, Drug, Drug Combinations, Drug Compounding, Healthy Volunteers, Humans, Losartan administration & dosage, Male, Middle Aged, Rosuvastatin Calcium administration & dosage, Tablets administration & dosage, Tablets pharmacokinetics, Amlodipine pharmacokinetics, Losartan pharmacokinetics, Rosuvastatin Calcium pharmacokinetics
- Abstract
Background: A fixed-dose combination (FDC) tablet formulation of amlodipine/losartan/rosuvastatin 5/100/20 mg was developed to improve medication compliance in patients with both hypertension and dyslipidemia. The comparative pharmacokinetic study was performed to compare the profile of an FDC tablet formulation of amlodipine/losartan/rosuvastatin with that of concomitant administration of a currently marketed FDC tablet of amlodipine/losartan with a rosuvastatin tablet., Subjects and Methods: A randomized, open-label, single oral dose, two-way crossover study was conducted in 60 healthy subjects. Subjects were orally administered the FDC tablet of amlodipine/losartan/rosuvastatin and a loose combination (LC) of two tablets comprising an FDC of amlodipine/losartan and rosuvastatin. Blood samples were collected for up to 144 h post dose for pharmacokinetic evaluations. Plasma concentrations of amlodipine, losartan, EXP3174 (an active metabolite of losartan), and rosuvastatin were measured by using liquid chromatography-tandem mass spectrometry. The geometric mean ratio (GMR) and its 90% confidence interval (90% CI) in the FDC treatment to LC treatment for the area under the concentration-time curve from zero to the last quantifiable time point (AUC
last ) and the maximum plasma concentration (Cmax ) were calculated. Safety was monitored throughout the study., Results: The GMR (90% CI) values of AUClast and Cmax were 0.9946 (0.9663-1.0238) and 0.9690 (0.9379-1.0011) for amlodipine, 0.9855 (0.9422-1.0308) and 0.9178 (0.8349-1.0089) for losartan, 0.9814 (0.9501-1.0136) and 0.9756 (0.9313-1.0219) for EXP3174, and 0.9448 (0.8995-0.9923) and 0.9609 (0.8799-1.0494) for rosuvastatin, respectively. No clinically significant changes were observed in any of the safety parameters, including clinical laboratory tests, vital signs, electrocardiograms, and physical examinations, between the FDC treatment and the LC treatment., Conclusion: We confirmed the pharmacokinetic equivalence of the FDC and LC treatments. This triple combination FDC formulation could be a clinically useful replacement for LC therapy., Competing Interests: Jin-A Jung and Yong-Il Kim are both employees at Hanmi Pharm. Co., Ltd., Seoul, Republic of Korea. All authors declare no other conflicts of interest regarding the publication of this manuscript., (© 2020 Yoon et al.)- Published
- 2020
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41. Effectiveness of Risk Minimization Measures for Fentanyl Buccal Tablet (FENTORA) in Canada: A Mixed-Methods Evaluation Using Surveys, Medical Chart Records and Web Surveillance.
- Author
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Kaplan S, Bergamasco A, Sergerie M, Castilloux AM, and Moride Y
- Subjects
- Administration, Buccal, Adolescent, Adult, Aged, Analgesics, Opioid adverse effects, Canada, Female, Fentanyl adverse effects, Humans, Male, Medical Records, Middle Aged, Prescriptions statistics & numerical data, Retrospective Studies, Risk Reduction Behavior, Surveys and Questionnaires, Tablets administration & dosage, Young Adult, Analgesics, Opioid administration & dosage, Breakthrough Pain drug therapy, Cancer Pain drug therapy, Fentanyl administration & dosage
- Abstract
Background: Fentanyl buccal tablet (FBT), a potent opioid, was approved in Canada in 2013 for breakthrough pain in opioid-tolerant adult cancer patients. Additional risk minimization measures (aRMMs), consisting of communications to patients and healthcare providers (HCPs), were implemented from November 2014 through September 2015., Objectives: The aim of this study was to assess the effectiveness of FBT aRMMs as measured by prescriber knowledge, understanding, and behavior regarding key safety concerns (off-label use, use in non-opioid-tolerant patients, misuse/abuse/diversion, and drug-drug interaction) and to evaluate illicit FBT use., Methods: The study included three components: (1) a knowledge and understanding (KAU) survey of FBT prescribers conducted in two waves: November 2016-February 2017 and April-September 2018; (2) a retrospective prescription study of medical records of patients treated with FBT by a subgroup of prescribers from the KAU survey; and (3) Web surveillance of illicit FBT use in Canada using the search term FENTORA (May 2014-September 2018). The aRMMs were considered effective if the lower bound of the 95% confidence interval indicated that at least 65% of respondents met or partly met the knowledge objective for each key safety concern., Results: KAU survey: Of 46 eligible HCPs, 97.8% met or partly met the knowledge objective on use in breakthrough pain cancer patients, 97.8% on use in opioid-tolerant patients, 89.1% on dose and titration, 100% on abuse/addiction, and 58.7% on drug-drug interaction. Retrospective prescription study: Of 22 FBT-treated patients identified from 14 HCPs, 45.5% had cancer, 50.0% recorded a breakthrough pain indication, and 36.4% reported opioid tolerance; however, only 13.6% of patients were prescribed FBT according to the approved indication. Web surveillance: Of 932 FBT posts in Canada, only 40 (4.3%) mentioned illicit use., Conclusions: The aRMMs as measured by the prescriber KAU were effective for most key safety messages; however, not all key messages of the aRMMs were stringently followed in routine practice.
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- 2020
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42. Relative Bioavailability of Enalapril Administered as Orodispersible Minitablets in Healthy Adults.
- Author
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Van Hecken A, Burckhardt BB, Khalil F, de Hoon J, Klingmann I, Herbots M, Laeer S, Lagler FB, and Breitkreutz J
- Subjects
- Administration, Oral, Adult, Angiotensin-Converting Enzyme Inhibitors administration & dosage, Biological Availability, Chronic Disease, Cross-Over Studies, Enalapril administration & dosage, Female, Healthy Volunteers, Humans, Male, Middle Aged, Safety, Tablets administration & dosage, Therapeutic Equivalency, Angiotensin-Converting Enzyme Inhibitors pharmacokinetics, Dosage Forms standards, Enalapril pharmacokinetics, Heart Failure drug therapy
- Abstract
The angiotensin-converting enzyme inhibitor enalapril is commonly used to treat chronic heart failure in children. Because some children are unable to swallow capsules or tablets, a new, age-appropriate, orodispersible minitablet (ODMT) containing 1 mg of enalapril was developed within the EU-funded LENA (Labeling of Enalapril from Neonates up to Adolescents) consortium. In order to support the clinical evaluation of this new formulation in children, a relative bioavailability study was performed in healthy adults, comparing the bioavailability of enalapril in the ODMT with that of a reference product (RP) Renitec, a registered standard enalapril tablet formulation. In this open-label, randomized 3-way crossover study, 24 healthy subjects received a 10-mg enalapril dose administered as (1) 2 × 5-mg tablets of the RP swallowed with water, (2) 10 × 1-mg ODMT swallowed with water, and (3) 10 × 1 mg ODMT dispersed on the tongue. When the relative bioavailability of the ODMT formulation swallowed with water was compared with that of the RP, the estimated 90%CIs for the ratio of area under the concentration-time curve (AUC
0-∞ ) and or peak concentration (Cmax ) of enalapril were 92.34% to 106.49% and 91.28% to 115.72%, respectively, which are within the accepted bioequivalence limits of 80% to 125%. Following dispersion of the ODMT in the mouth, a slightly higher Cmax for enalapril was observed as compared with the RP with an upper 90%CI of 127.57%, slightly exceeding the bioequivalence limit. Taken together, it was demonstrated that the method of administration of the ODMT, swallowed or dispersed, did not significantly affect the bioavailability of enalapril., (© 2019, The American College of Clinical Pharmacology.)- Published
- 2020
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43. Design and optimization of a child-friendly dispersible tablet containing isoniazid, pyrazinamide, and rifampicin for treating tuberculosis in pediatrics.
- Author
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Suárez-González J, Santoveña-Estévez A, Soriano M, and Fariña JB
- Subjects
- Chemistry, Pharmaceutical methods, Child, Drug Compounding methods, Excipients chemistry, Hardness drug effects, Humans, Isoniazid administration & dosage, Pediatrics methods, Pyrazinamide administration & dosage, Rifampin administration & dosage, Solubility drug effects, Tablets administration & dosage, Tensile Strength, Antitubercular Agents administration & dosage, Antitubercular Agents chemistry, Isoniazid chemistry, Pyrazinamide chemistry, Rifampin chemistry, Tablets chemistry, Tuberculosis drug therapy
- Abstract
Objective: Develop a child-friendly Fixed Dose Combination (FDC) water-dispersible tablet for Tuberculosis (TB) treatment, with 50, 150, and 75 mg of isoniazid, pyrazinamide and rifampicin respectively. This new formulation must contain the lowest number of excipients accepted for pediatrics and fulfill all the pharmacopeia requirements. Significance: At present, there is no adequate market dosage form available for children. There is, however, one in a prequalification phase by the World Health Organization but its composition contains excipients which may not be suitable for pediatrics. Therefore, this new formulation would cover this therapeutic gap. Methods: A factorial design, based on three quantitative factors (compression force and concentration of AcDiSol
® and Explosol® ) at three levels each, was performed to elucidate their influence over disintegration time and friability. In addition, the influence of the press speed on disintegration time, friability, tensile strength, fineness of dispersion and content uniformity over the target tablet was tested. A stability test was done following ICH guideline for accelerated conditions. Results: Tablets developed with 9% w/w of Explosol® and a compression force of 16 kN disintegrated in less than 3 min and showed a friability below 1% when 15-mm punches were used. The tableting process could be done up to 25 and 50 cycles/minute ensuring good quality attributes when 15 and 12-mm punches were used, respectively. All APIs remained inside the limit of ± 5% of drug content till 6 months of storage. Conclusion: A high-quality child-friendly FDC water-dispersible tablet was developed improving the treatment of TB in pediatric.- Published
- 2020
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- View/download PDF
44. Effectiveness of half-a-tablet efavirenz plus 2 nucleos(t)ide reverse-transcriptase inhibitors as maintenance therapy with the guidance of therapeutic drug monitoring among virologically suppressed HIV-positive patients: A prospective study.
- Author
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Huang SH, Lin SW, Chang SY, Lin YT, Sun HY, Liu WC, Su YC, Hung CC, and Chang SC
- Subjects
- Adult, Alkynes, Cyclopropanes, Drug Therapy, Combination, Female, HIV-1, Humans, Male, Middle Aged, Prospective Studies, Tablets administration & dosage, Viral Load, Anti-HIV Agents therapeutic use, Benzoxazines administration & dosage, Drug Monitoring, HIV Infections drug therapy, Reverse Transcriptase Inhibitors therapeutic use, Sustained Virologic Response
- Abstract
Background: Optimal efavirenz (EFV) dose that minimizes adverse effects while maintaining efficacy has yet to be elucidated. With a therapeutic drug monitoring (TDM)-guided strategy, we assessed the effectiveness of half-a-tablet EFV plus 2 nucleos(t)ide reverse-transcriptase inhibitors (NRTIs) in HIV-infected Taiwanese who had achieved viral suppression with full-dose (600 mg) EFV., Methods: HIV-infected adults receiving EFV-containing regimens who had plasma mid-dose EFV concentration (C12) ≥2.0 mg/L and had plasma HIV RNA load (PVL) <200 copies/mL were enrolled in this single-arm, open-label study by reducing EFV to half-a-tablet daily. The primary endpoint was PVL <50 copies/ml in an intention-to-treat (ITT) population at week 48. The secondary endpoints were the plasma EFV C12, the proportion of patients with plasma EFV C12 <1.0 mg/L, PVL <50 copies/ml at week 96 and week 144., Results: Between April 2013 and September 2016, 203 patients (93.6% male; median age, 39.0 years) were enrolled. The median EFV C12 before switch was 2.80 mg/L (interquartile range (IQR), 2.41-3.73), which decreased to 1.59 mg/L (IQR, 1.23-2.03) after switch with a reduction of 47.4% (IQR, 38.3-55.5%). In ITT analysis, 93.6%, 92.3% and 87.3% of the patients achieved PVL <50 copies/ml at weeks 48, 96 and 144, respectively. More than 70% of the patients reported alleviation of EFV-associated adverse effects following the switch., Conclusion: Under the guidance of TDM, switch to half-a-tablet EFV plus 2 NRTIs is effective in maintaining viral suppression in HIV-infected Taiwanese with EFV C12 ≥ 2.0 mg/L., (Copyright © 2018. Published by Elsevier B.V.)
- Published
- 2020
- Full Text
- View/download PDF
45. Decoding the small size challenges of mini-tablets for enhanced dose flexibility and micro-dosing.
- Author
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Mitra B, Thool P, Meruva S, Aycinena JA, Li J, Patel J, Patel K, Agarwal A, Karki S, and Bowen W
- Subjects
- Administration, Oral, Chemistry, Pharmaceutical methods, Drug Compounding methods, Ibuprofen administration & dosage, Ibuprofen chemistry, Particle Size, Pressure, Solubility, Tablets administration & dosage, Tablets chemistry
- Abstract
Mini-tablets are an age appropriate dosage form for oral administration to pediatric and geriatric patients, either as individual mini-tablets or as composite dosage units. Smaller size mini-tablets than the commonly used 2 mm or larger size would offer more tailored micro-dose delivery of investigational drugs. This work demonstrated drug substance particle size, drug loading and mini-tablet size ranges to achieve acceptable quality attributes of mini-tablets. A platform formulation with 60, 80, and 100 μm (particle size D
6,3 ) ibuprofen at 3, 14, and 25% loadings were directly compressed into 1.2, 1.5, 2, and 2.5 mm diameter mini-tablets. With an enhanced weight control approach, all the mini-tablet batches except the 1.2 mm diameter mini-tablets with 100 µm ibuprofen at 3% loading would achieve acceptable content uniformity as individual mini-tablets (USP <905> L2 criteria) and as composite dosage units of five or more mini-tablets (USP <905> L1 criteria). A dissolution method was developed and successfully utilized to evaluate the formulations herein. Small size mini-tablets, small ibuprofen particle size, and low dose (or low ibuprofen loading) enhanced the dissolution performance. In addition, hypothetical scenarios of potential dose flexibility, dose range, dose titration, and excipient burden were discussed. The results of this study provide guidance for development of smaller size mini-tablets that enable dosing as a single or composite dosage unit, reduce excipient burden and leverage dispensing technology to achieve enhanced dosing flexibility and micro-dosing., (Copyright © 2019 Elsevier B.V. All rights reserved.)- Published
- 2020
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46. Stability of Metronidazole Free-base Oral Suspensions Formulated with United States Pharmacopeia-grade Metronidazole Powder and Commercial Metronidazole Tablets.
- Author
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Jarouche M, Ibrahim M, Pearson J, Low M, and Rowe J
- Subjects
- Administration, Oral, Chromatography, High Pressure Liquid, Drug Compounding methods, Drug Stability, Suspensions, Tablets administration & dosage, United States, Metronidazole
- Abstract
This study reports on the stability of United States Pharmacopeia-grade metronidazole powder and commercially available metronidazole tablets in two dye-free oral suspending vehicles, namely Oral Mix and Oral Mix Sugar-Free. Metronidazole at 50 mg/mL was prepared individually in Oral Mix and Oral Mix Sugar-Free suspension vehicles and placed in 50-mL amber polyethyleneterephthalate bottles and 3-mL amber plastic syringes and stored at 4°C or 25°C/60% relative humidity for 90 days. The solutions were analyzed at the time of preparation and at 7 days, 14 days, 30 days, 45 days, 60 days, 75 days, and 90 days, with the concentration of metronidazole measured by high-performance liquid chromatography with photodiode array detection. The oral solutions were also monitored for pH, homogeneity, color, and odor. Except for the Oral Mix suspension of metronidazole prepared from the United States Pharmacopeia-grade powder and from the commercial tablet, when stored in pre-filled syringes, all the other preparations were stable at 4°C or 25°C/60% relative humidity for 90 days, with the metronidazole remaining within ± 10% of the initial concentration. The pH, color, odor, and resuspendability remained essentially unchanged. Metronidazole in Oral Mix and Oral Mix Sugar-Free oral suspensions, compounded from United States Pharmacopeia-grade powder or commercially available tablets, are a suitable alternative as an extemporaneously prepared medication., (Copyright© by International Journal of Pharmaceutical Compounding, Inc.)
- Published
- 2020
47. Week 48 Resistance Analyses of the Once-Daily, Single-Tablet Regimen Darunavir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (D/C/F/TAF) in Adults Living with HIV-1 from the Phase III Randomized AMBER and EMERALD Trials.
- Author
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Lathouwers E, Wong EY, Brown K, Baugh B, Ghys A, Jezorwski J, Mohsine EG, Van Landuyt E, Opsomer M, and De Meyer S
- Subjects
- Adenine administration & dosage, Adult, Alanine, Anti-HIV Agents administration & dosage, Drug Administration Schedule, Drug Combinations, HIV Infections epidemiology, HIV-1 drug effects, Humans, Reverse Transcriptase Inhibitors administration & dosage, Tablets administration & dosage, Tenofovir analogs & derivatives, Viral Load drug effects, Adenine analogs & derivatives, Cobicistat administration & dosage, Darunavir administration & dosage, Drug Resistance, Viral, Emtricitabine administration & dosage, HIV Infections drug therapy
- Abstract
Darunavir/cobicistat/emtricitabine/tenofovir alafenamide (D/C/F/TAF) 800/150/200/10 mg is being investigated in two Phase III trials, AMBER (NCT02431247; treatment-naive adults) and EMERALD (NCT02269917; treatment-experienced, virologically suppressed adults). Week 48 AMBER and EMERALD resistance analyses are presented. Postbaseline samples for genotyping/phenotyping were analyzed from protocol-defined virologic failures (PDVFs) with viral load (VL) ≥400 copies/mL at failure/later time points. Post hoc analyses were deep sequencing in AMBER, and HIV-1 proviral DNA from baseline samples (VL <50 copies/mL) in EMERALD. Through week 48 across both studies, no darunavir, primary PI, or tenofovir resistance-associated mutations (RAMs) were observed in HIV-1 viruses of 1,125 participants receiving D/C/F/TAF or 629 receiving boosted darunavir plus emtricitabine/tenofovir-disoproxil-fumarate. In AMBER, the nucleos(t)ide analog reverse transcriptase inhibitor (N(t)RTI) RAM M184I/V was identified in HIV-1 of one participant during D/C/F/TAF treatment. M184V was detected pretreatment as a minority variant (9%). In EMERALD, in participants with prior VF and genoarchive data ( N = 140; 98 D/C/F/TAF and 42 control), 4% had viruses with darunavir RAMs, 38% with emtricitabine RAMs, mainly at position 184 (41% not fully susceptible to emtricitabine), 4% with tenofovir RAMs, and 21% ≥ 3 thymidine analog-associated mutations (24% not fully susceptible to tenofovir) detected at screening. All achieved VL <50 copies/mL at week 48 or prior discontinuation. D/C/F/TAF has a high genetic barrier to resistance; no darunavir, primary PI, or tenofovir RAMs were observed through 48 weeks in AMBER and EMERALD. Only one postbaseline M184I/V RAM was observed in HIV-1 of an AMBER participant. In EMERALD, baseline archived RAMs to darunavir, emtricitabine, and tenofovir in participants with prior VF did not preclude virologic response.
- Published
- 2020
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- View/download PDF
48. Practices Involved in the Enteral Delivery of Drugs.
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Bandy KS, Albrecht S, Parag B, and McClave SA
- Subjects
- Administration, Oral, Capsules administration & dosage, Critical Illness, Humans, Nutrients, Pharmacists, Tablets administration & dosage, Dosage Forms, Drug Administration Routes, Pharmaceutical Preparations administration & dosage
- Abstract
Purpose of Review: While the delivery of medications through enteral tubes is common in critically ill patients, there are complications and a lack of unified practices between institutions. The purpose of this review is to evaluate current practices and literature evidence regarding this administration route. The effect of this administration on the medication's efficacy, safety, tolerability, and pharmacokinetics was examined, as well as other considerations to ensure that this route of delivery is both safe and effective for patients., Recent Findings: Studies have found crushed oral tablets are the most frequent cause of obstructed feeding tubes. Complications such as this are primarily due to inadequate personnel training and failure to properly access medications before enteral administration. There are many factors that should be considered in order to effectively administer drugs via enteral tubes. Formal training and use of a multi-disciplinary approach that includes pharmacists and dieticians has been shown to reduce tube obstructions and administration errors.
- Published
- 2019
- Full Text
- View/download PDF
49. [Adjuvant endocrine therapy in premenopausal breast cancer: a initial dedicated counseling: can it be useful for better adherence?]
- Author
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Lesur A, Dalenc F, and Beguignot M
- Subjects
- Administration, Oral, Adult, Age Factors, Breast Neoplasms chemistry, Breast Neoplasms psychology, Chemotherapy, Adjuvant, Counseling, Female, Humans, Physician-Patient Relations, Tablets administration & dosage, Antineoplastic Agents, Hormonal administration & dosage, Breast Neoplasms drug therapy, Communication, Medication Adherence psychology, Patient Education as Topic, Premenopause
- Abstract
Adjuvant endocrine therapy is highly effective and appropriate for all breast cancer patients with hormone receptor positive tumors, pre and post menopausal women. It's an oral daily pill for many years, after primary treatment. Although this medication dramatically reduces reccurrence rates and risk of death, many breast cancer survivors either fail to take pills with prescribed frequency (adherence) or discontinue therapy (persistence) or even never begin to take it. It's difficult to know exactly the prevalence of adherence and persistence but women age younger than 40 years had the highest risk of discontinuation. Medical literature of the last 15 years in this area has been carefully reviewed considering initiation treatment background, specificity of premenopausal young women population, healthcare provider and patient communication and respective views. It's highlighted that dedicated care, at first and after in follow up, is an essential part for better adherence. Guidelines processing are more and more complicated, expert medical assesment is required, shared decision must be provide. Patients need enhanced knowledge about mode of action, benefits but also potential side effects, and optimized patient provider relationship for empathy and better comprehension. Providers must believe in treatment relevance and convey their convictions., (Copyright © 2019 Société Française du Cancer. Publié par Elsevier Masson SAS. Tous droits réservés.)
- Published
- 2019
- Full Text
- View/download PDF
50. Safety profile of the SQ house dust mite sublingual immunotherapy-tablet in Japanese adult patients with house dust mite-induced allergic asthma: a randomized, double-blind, placebo-controlled phase I study.
- Author
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Okamiya K, Sekino H, Azuma R, Kudo M, Sakaguchi M, Nemoto F, Muramatsu N, Maekawa Y, and Tanaka A
- Subjects
- Adult, Animals, Antigens, Dermatophagoides immunology, Asthma diagnosis, Dose-Response Relationship, Drug, Double-Blind Method, Drug Administration Schedule, Female, Follow-Up Studies, Humans, Japan, Male, Maximum Tolerated Dose, Middle Aged, Reference Values, Severity of Illness Index, Sublingual Immunotherapy, Tablets administration & dosage, Treatment Outcome, Asthma drug therapy, Asthma immunology, Patient Safety, Pyroglyphidae immunology
- Abstract
Objective: The SQ house dust mite (HDM) sublingual immunotherapy (SLIT)-tablet has demonstrated effective treatment of HDM-induced allergic asthma in patients 18 years or older in European trials. This study investigated its safety and immunology profile in Japanese adult patients with mild-to-moderate HDM-induced allergic asthma. Methods: In this randomized, double-blind, placebo-controlled study, 48 Japanese patients were randomly assigned to a daily treatment of SQ HDM SLIT-tablet or placebo (3:1) for 14 d with or without an up-dosing regimen. Active groups comprised 5000, 10,000 or 20,000 Japanese Allergy Unit (JAU) for 14 d, and the up-dosing group comprised 5,000 JAU in day 1-3, 10,000 JAU in day 4-7 and 20,000 JAU in day 8-14. Results: No marked differences were observed in the incidence rate of adverse events (AEs) and their severity among active groups. The five most common investigational medicinal product (IMP)-related AEs were local events at the application site observed within 30 min after the intake of the SQ HDM SLIT-tablet. Although most events recovered within 1 h, mouth edema indicated a different profile of duration with more than 25% of the events lasting for more than 1 h. Conclusions: The SQ HDM SLIT-tablet of up to 20,000 JAU was well tolerated, and safety profile was acceptable for Japanese subjects with HDM-induced allergic asthma.
- Published
- 2019
- Full Text
- View/download PDF
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