8 results on '"Ndirangu K"'
Search Results
2. 462P Health outcomes of treatment sequences with eribulin or other single agents’ chemotherapy for treating relapsed metastatic HER2-negative breast cancer
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Rivolo, S., Ndirangu, K., Teloian, D., Ambavane, A., Jackisch, C., and Hall, P.S.
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- 2023
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3. The long-term clinical and economic benefits of treating advanced COPD patients with single-inhaler triple therapy in Quebec, Canada - The IMPACT trial.
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Risebrough NA, Mursleen S, Ndirangu K, Shah D, Martin A, Schroeder M, and Ismaila AS
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- Humans, Quebec, Male, Female, Middle Aged, Drug Combinations, Nebulizers and Vaporizers economics, Administration, Inhalation, Aged, Pyrrolidines economics, Pyrrolidines therapeutic use, Pyrrolidines administration & dosage, Bronchodilator Agents economics, Bronchodilator Agents administration & dosage, Bronchodilator Agents therapeutic use, Disease Progression, Drug Therapy, Combination, Treatment Outcome, Pulmonary Disease, Chronic Obstructive drug therapy, Pulmonary Disease, Chronic Obstructive economics, Cost-Benefit Analysis, Benzyl Alcohols economics, Benzyl Alcohols administration & dosage, Benzyl Alcohols therapeutic use, Quality-Adjusted Life Years, Quinuclidines economics, Quinuclidines administration & dosage, Quinuclidines therapeutic use, Chlorobenzenes economics, Chlorobenzenes administration & dosage, Chlorobenzenes therapeutic use, Androstadienes economics, Androstadienes administration & dosage, Androstadienes therapeutic use
- Abstract
Background: This cost-utility analysis assessed the long-term clinical and economic benefits of fluticasone furoate/umeclidinium/vilanterol (FF/UMEC/VI) triple therapy vs FF/VI or UMEC/VI from a Quebec societal perspective in patients with chronic obstructive pulmonary disease (COPD) with ≥1 moderate/severe exacerbation in the previous year., Methods: The validated GALAXY disease progression model was utilized, with parameters set to baseline and efficacy data from IMPACT. Treatment costs (2017 Canadian dollars [C$]) were estimated using Quebec-specific unit costs. Costs and health outcomes were discounted at 1.5 %/year. A willingness-to-pay threshold of C$50,000/quality-adjusted life year (QALY) was considered cost-effective. Outcomes modeled were exacerbation rates, QALYs, life years (LYs), costs and incremental cost-effectiveness ratios (ICERs). Subgroup analyses were performed according to prior treatment, exacerbation history in the previous year, and baseline lung function., Results: Over a lifetime horizon, FF/UMEC/VI resulted in more QALYs and LYs gained, at a small incremental cost compared with FF/VI and UMEC/VI. From a societal perspective, the estimated ICER for the base case was C$18,152/QALY vs FF/VI, and C$15,847/QALY vs UMEC/VI. For the subgroup analyses (FF/UMEC/VI compared with FF/VI and UMEC/VI), ICERs ranged from: C$17,412-25,664/QALY and C$16,493-18,663/QALY (prior treatment); C$15,247-19,924/QALY and C$15,444-28,859/QALY (exacerbation history); C$14,025-34,154/QALY and C$16,083-17,509/QALY (baseline lung function)., Interpretation: FF/UMEC/VI was predicted to improve outcomes and be cost-effective vs both comparators in the base case and all subgroup analyses, and based on this analysis would be an appropriate investment of health service funds in Quebec., Clinical Trial Registration Number: IMPACT trial NCT02164513., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: A.S. Ismaila, M. Schroeder, A. Martin, S. Mursleen: are/were employees of, and hold shares in, GSK. A.S. Ismaila: unpaid, part-time professor at McMaster University, Canada. N.A. Risebrough, D. Shah, K. Ndirangu: employees of ICON plc, which received funding from GSK to conduct this study, but were not themselves paid for development of this manuscript., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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4. A clinical systematic literature review of treatments among patients with advanced and/or metastatic human epidermal growth factor receptor 2 positive breast cancer.
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Ndirangu K, Goldgrub R, Tongbram V, Antony R, Lalayan B, O'Shaughnessy J, and Schellhorn SE
- Abstract
Aim: This systematic literature review aims to summarize the efficacy/effectiveness of treatments, including eribulin (ERI)-based and anti-human epidermal growth factor receptor 2 (HER2) treatments in advanced/metastatic HER2+ breast cancer. Methods: Three databases from 2016 to September 2021 were searched for clinical trials and observational studies in patients receiving first-line (1L) standard of care (SOC), second-line (2L) SOC or third-line or subsequent lines (3L+). Results: 2692 citations were screened, and 38 studies were included. Eleven studies were randomized-controlled trials (RCTs; 5 in 1L, 6 in 3L+), 6 were single-arm trials (5 in 1L, 1 in 3L+) and 21 were observational studies (13 in 1L, 6 in 2L, 4 in 3L+ [note that studies with subgroups for 1L, 2L, 3L+ are double-counted]). Longer overall survival (OS) was associated with 1L and 2L treatment, and for 3L+ studies that included ERI, ERI or trastuzumab (Tmab) + ERI led to longer OS than treatments of physician's choice (median OS of 11, 10 and 8.9 months, respectively). Progression-free survival was 9 months in Tmab + pertuzumab (Pmab) + ERI, 4 months in Tmab + ERI and 3.3 months in ERI. Conclusion: Available treatments provide a wide range of efficacy. However, later lines lack standardization and conclusions on comparative effectiveness are limited by differing trial designs. Thus, the chance of prolonged survival with new agents warrants further research.
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- 2024
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5. Treatment-emergent antidrug antibodies related to PD-1, PD-L1, or CTLA-4 inhibitors across tumor types: a systematic review.
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Galle P, Finn RS, Mitchell CR, Ndirangu K, Ramji Z, Redhead GS, and Pinato DJ
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- Humans, CTLA-4 Antigen, B7-H1 Antigen, Programmed Cell Death 1 Receptor, Immunotherapy methods, Immune Checkpoint Inhibitors therapeutic use, Neoplasms drug therapy
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Background: Increased understanding of how the immune system regulates tumor growth has innovated the use of immunotherapeutics to treat various cancers. The impact of such therapies, including programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) inhibitors, on the production of antidrug antibodies (ADAs) and their impact on outcomes, is poorly understood. This study aims to evaluate the clinical trial evidence on ADA incidence associated with PD-1, PD-L1, and CTLA-4 inhibitors in the treatment of cancer and to assess associations between treatment administered, ADA incidence, and treatment outcomes., Methods: Embase
® , Medline® , and EBM Reviews were searched via the OVID® platform on February 15, 2022. Conference proceedings, clinical trial registries, and global regulatory and reimbursement body websites were also searched. Eligible publications included clinical trials enrolling patients receiving cancer treatment with either PD-1, PD-L1, or CTLA-4 reporting outcomes including incidence or prevalence of ADAs and the impact of immunogenicity on treatment safety and efficacy. Reference lists of eligible publications were also searched. The review was conducted and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and evidence quality assessment was conducted using the appropriate Joanna Briggs Institute Critical Appraisal tool., Results: After screening 4160 records and reviewing 97 full publications, a total of 34 publications reporting on 68 trials were included. A further 41 relevant clinical trials were identified on ClinicalTrials.gov and a further 32 from searches of packaging inserts. In total, 141 relevant trials covering 15 different checkpoint inhibitors and 16 different tumor types were included. Across the included trials, atezolizumab was associated with the highest incidence of ADAs (29.6% of 639 patients), followed by nivolumab (11.2% of 2,085 patients). Combination checkpoint inhibitor treatment appeared to increase the rate of ADAs versus monotherapy. Only 17 trials reported on the impact of ADAs on treatment outcomes with mixed results for the impact of ADAs on treatment efficacy, safety, and pharmacokinetics., Conclusions: Checkpoint inhibitors for the treatment of cancer are immunogenic, with the incidence of treatment-emergent ADAs varying between individual therapies. It remains unclear what impact ADAs have on treatment outcomes., Competing Interests: Competing interests: KN and ZR were an employee of Eisai, USA. CRM and GSR of Mtech Access were paid consultants to Eisai. PG has received lecture fees and honoraria from BMS, Adaptimmune, AstraZeneca, Sirtex, MSD, Eisai, Ipsen, Bayer, Roche, Lilly, Boston Scientific, and Guerbet. DJP has received lecture fees from ViiV Healthcare, Bayer Healthcare, BMS, Roche, Eisai, Falk Foundation; travel expenses from BMS and Bayer Healthcare; consulting fees from Mina Therapeutics, Eisai, Roche, Ipsen, Mursla, Starpharma, Avamune, DaVolterra, and Astra Zeneca; and research funding (to institution) from MSD, GSK, and BMS. RSF has acted as a consultant to AstraZeneca, Bayer, BMS, CStone, Exelixis, Eisai, Merck, Pfizer, Roche/Genentech, and has received grants (to institution) from Bayer, BMS, Eisai, Merck, Pfizer, and Roche/Genentech., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)- Published
- 2024
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6. Disease landscape of advanced HER2-breast cancer patients by treatment line in three EU countries and USA.
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Ndirangu K, Chabot I, Lewis K, Lambert A, Zhao Q, Lucero M, and Meier G
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- Humans, Female, Middle Aged, United States epidemiology, Cross-Sectional Studies, Aged, Adult, Europe, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Antineoplastic Combined Chemotherapy Protocols adverse effects, Triple Negative Breast Neoplasms drug therapy, Triple Negative Breast Neoplasms therapy, Triple Negative Breast Neoplasms pathology, Neoplasm Staging, Treatment Outcome, Quality of Life, Receptor, ErbB-2 metabolism, Breast Neoplasms drug therapy, Breast Neoplasms therapy, Breast Neoplasms pathology
- Abstract
Aim: To report treatment patterns and quality of life (QoL) in HER2-negative advanced breast cancer patients. Methods: Data were drawn from a cross-sectional survey in Europe and USA. Results: Hormone plus targeted therapy was the most frequent first-line (1L, 62%) and second-line (2L, 45%) treatment for HR+/HER2-patients. Chemotherapy was most frequent at third-line or greater (3L+, 39%) for HR+/HER2- patients, 2L (51%) and 3L+ (48%) for triple negative breast cancer (TNBC) patients. Time to progression was 13.8 (2L) and 11.0 (3L+) months for HR+/HER2- patients. No comparisons were observed for TNBC patients. EQ-5D-5L scores were highest in patients at 1L and lowest at 3L+. Conclusion: Reduced QoL and treatment response were reported in patients at later lines of therapy.
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- 2024
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7. A network meta-analysis of immunotherapy-based treatments for advanced nonsquamous non-small cell lung cancer.
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Aggarwal H, Ndirangu K, Winfree KB, Muehlenbein CE, Zhu E, Tongbram V, and Thom H
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- Humans, Docetaxel therapeutic use, Pemetrexed therapeutic use, Network Meta-Analysis, Platinum therapeutic use, Bayes Theorem, Immunotherapy, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Carcinoma, Non-Small-Cell Lung drug therapy, Lung Neoplasms drug therapy
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Introduction: In the absence of head-to-head trials comparing immunotherapies for advanced nonsquamous non-small-cell lung cancer (NsqNSCLC), a network meta-analysis (NMA) was conducted to compare the relative efficacy of these treatments. Materials & methods: A systematic literature review of randomized controlled trials evaluating first-line-to-progression and second-line treatments for advanced NsqNSCLC informed Bayesian NMAs for overall survival (OS) and progression-free survival (PFS) end points. Results: Among first-line-to-progression treatments, pembrolizumab + pemetrexed + platinum showed the greatest OS benefit versus other regimens and a PFS benefit versus all but three regimens. Among second-line treatments, an OS benefit was seen for atezolizumab, nivolumab and pembrolizumab versus docetaxel. Conclusion: Pembrolizumab + pemetrexed + platinum showed the maximum OS benefit in the first-line setting. In the second-line setting, anti-PD-1/anti-PD-L1 monotherapies were better than docetaxel.
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- 2023
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8. Is single-inhaler triple therapy for COPD cost-effective in the UK? The IMPACT trial.
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Martin A, Shah D, Ndirangu K, Anley GA, Okorogheye G, Schroeder M, Risebrough N, and Ismaila AS
- Abstract
Background: The IMPACT trial demonstrated superior outcomes following 52 weeks of once-daily single-inhaler treatment with fluticasone furoate (FF)/umeclidinium (UMEC)/vilanterol (VI) (100/62.5/25 μg) compared with once-daily FF/VI (100/25 μg) or UMEC/VI (62.5/25 μg). This study evaluated the cost-effectiveness of FF/UMEC/VI compared with FF/VI or UMEC/VI for the treatment of chronic obstructive pulmonary disease (COPD) from a UK National Health Service perspective., Methods: Patient characteristics and treatment effects from IMPACT were populated into a hybrid decision tree/Markov economic model. Costs (GB£ inflated to 2018 equivalents) and health outcomes were modelled over a lifetime horizon, with a discount rate of 3.5% per annum applied to both. Sensitivity analyses were performed to test the robustness of key assumptions and input parameters., Results: Compared with FF/VI and UMEC/VI, FF/UMEC/VI provided an additional 0.296 and 0.145 life years (LYs) (discounted) and 0.275 and 0.118 quality-adjusted life years (QALYs), at an additional cost of £1129 and £760, respectively. Incremental cost-effectiveness ratios (ICERs) for FF/UMEC/VI were £4104/QALY and £3809/LY gained versus FF/VI and £6418/QALY and £5225/LY gained versus UMEC/VI. At a willingness-to-pay threshold of £20 000/QALY, the probability that FF/UMEC/VI was cost-effective was 96% versus FF/VI and 74% versus UMEC/VI. Results were similar in a subgroup of patients recommended triple therapy in the 2019 National Institute for Health and Care Excellence COPD guideline., Conclusions: FF/UMEC/VI single-inhaler triple therapy improved health outcomes and was a cost-effective option compared with FF/VI or UMEC/VI for patients with symptomatic COPD and a history of exacerbations in the UK at recognised cost-effectiveness threshold levels., Competing Interests: Conflict of interest: A. Martin, G. Anley, G. Okorogheye, M. Schroeder and A.S. Ismaila are/were employees of, and shareholders in, GlaxoSmithKline. A.S. Ismaila is also an unpaid part-time professor at McMaster University, Canada. D. Shah, K. Ndirangu and N. Risebrough are employees of ICON Plc. ICON Plc. received funding from GlaxoSmithKline to conduct this study but were not paid for development of this manuscript., (Copyright ©The authors 2022.)
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- 2022
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