8 results on '"Simes, RJ"'
Search Results
2. Final results of Australasian Gastrointestinal Trials Group ARCTIC study: an audit of raltitrexed for patients with cardiac toxicity induced by fluoropyrimidines.
- Author
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Ransom D, Wilson K, Fournier M, Simes RJ, Gebski V, Yip D, Tebbutt N, Karapetis CS, Ferry D, Gordon S, and Price TJ
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- Adult, Aged, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Camptothecin administration & dosage, Camptothecin analogs & derivatives, Capecitabine, Deoxycytidine administration & dosage, Deoxycytidine analogs & derivatives, Drug Substitution, Fluorouracil administration & dosage, Fluorouracil analogs & derivatives, Humans, Irinotecan, Middle Aged, Quinazolines administration & dosage, Thiophenes administration & dosage, Antineoplastic Combined Chemotherapy Protocols adverse effects, Colorectal Neoplasms drug therapy, Heart Diseases chemically induced
- Abstract
Background: Cardiac toxicity an uncommon but serious side-effect of some fluoropyrimides. Cardiac toxicity from raltitrexed is rarely reported. With this background, we initiated this study to investigate the incidence of cardiac events in patients who had switched to raltitrexed following cardiac toxicity from fluoropyrimidines (5-fluorouracil or capecitabine)., Patients and Methods: Pharmacy records were used to identify patients receiving raltitrexed from January 2004 till March 2012. Medical records were then reviewed to confirm the use of raltitrexed after cardiac toxicity from 5-fluorouracil or capecitabine. The primary end point was the rate of further cardiac events after commencing raltitrexed., Results: Forty-two patients were identified and the majority had colorectal cancer. Prior regimens included 5-fluorouracil ± leucovorin, capecitabine alone, FOLFOX, FOLFIRI, epirubicin/cisplatin/5-fluorouracil, and capecitabine/oxaliplatin. Seven patients (17%) had bolus 5-fluorouracil regimens, 26 patients (62%) had infusion 5-fluorouracil regimens, and 9 patients (21%) had capecitabine alone or in combination. Angina was the most common cardiac toxicity from 5-fluorouracil or capecitabine and usually occurred in the first or the second cycle. Four patients after their first cardiac event continued with the same 5-fluorouracil or capecitabine regimen with the addition of nitrates and calcium antagonists but still had further cardiac events. After changing to raltitrexed, either as a single agent or a continuing combination regimen, no patients experienced further cardiac toxicity., Conclusion: Raltitrexed is associated with no significant cardiac toxicity in patients who have experienced prior cardiac toxicity from 5-fluorouracil or capecitabine. Raltitrexed, alone or in combination with oxaliplatin or irinotecan, provides a safe option in terms of cardiac toxicity for such patients.
- Published
- 2014
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3. A prognostic nomogram to predict overall survival in patients with platinum-sensitive recurrent ovarian cancer.
- Author
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Lee CK, Simes RJ, Brown C, Gebski V, Pfisterer J, Swart AM, Berton-Rigaud D, Plante M, Skeie-Jensen T, Vergote I, Schauer C, Pisano C, Parma G, Baumann K, Ledermann JA, Pujade-Lauraine E, Bentley J, Kristensen G, Belau A, Nankivell M, Canzler U, Lord SJ, Kurzeder C, and Friedlander M
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- Adult, Aged, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols administration & dosage, Clinical Trials as Topic, Disease-Free Survival, Female, Humans, Middle Aged, Neoplasm Recurrence, Local chemically induced, Neoplasm Recurrence, Local genetics, Neoplasm Staging, Nomograms, Ovarian Neoplasms pathology, Paclitaxel administration & dosage, Platinum adverse effects, Platinum toxicity, Prognosis, Sensitivity and Specificity, Treatment Outcome, Neoplasm Recurrence, Local pathology, Ovarian Neoplasms drug therapy, Ovarian Neoplasms genetics, Platinum administration & dosage
- Abstract
Background: Patients with platinum-sensitive recurrent ovarian cancer have variable prognosis and survival. We extend previous work on prediction of progression-free survival by developing a nomogram to predict overall survival (OS) in these patients treated with platinum-based chemotherapy., Patients and Methods: The nomogram was developed using data from the CAELYX in Platinum-Sensitive Ovarian Patients (CALYPSO) trial. Multivariate proportional hazards models were generated based on pre-treatment characteristics to develop a nomogram that classifies patient prognosis based on OS outcome. We also developed two simpler models with fewer variables and conducted model validations in independent datasets from AGO-OVAR Study 2.5 and ICON 4. We compare the performance of the nomogram with the simpler models by examining the differences in the C-statistics and net reclassification index (NRI)., Results: The nomogram included six significant predictors: interval from last platinum chemotherapy, performance status, size of the largest tumour, CA-125, haemoglobin and the number of organ sites of metastasis (C-statistic 0.67; 95% confidence interval 0.65-0.69). Among the CALPYSO patients, the median OS for good, intermediate and poor prognosis groups was 56.2, 31.0 and 20.8 months, respectively. When CA-125 was not included in the model, the C-statistics were 0.65 (CALYPSO) and 0.64 (AGO-OVAR 2.5). A simpler model (interval from last platinum chemotherapy, performance status and CA-125) produced a significant decrease of the C-statistic (0.63) and NRI (26.4%, P < 0.0001)., Conclusions: This nomogram with six pre-treatment characteristics improves OS prediction in patients with platinum-sensitive ovarian cancer and is superior to models with fewer prognostic factors or platinum chemotherapy free interval alone. With independent validation, this nomogram could potentially be useful for improved stratification of patients in clinical trials and also for counselling patients.
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- 2013
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- View/download PDF
4. Bevacizumab is equally effective and no more toxic in elderly patients with advanced colorectal cancer: a subgroup analysis from the AGITG MAX trial: an international randomised controlled trial of Capecitabine, Bevacizumab and Mitomycin C.
- Author
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Price TJ, Zannino D, Wilson K, Simes RJ, Cassidy J, Van Hazel GA, Robinson BA, Broad A, Ganju V, Ackland SP, and Tebbutt NC
- Subjects
- Age Factors, Aged, Aged, 80 and over, Antibodies, Monoclonal, Humanized administration & dosage, Antineoplastic Combined Chemotherapy Protocols adverse effects, Bevacizumab, Capecitabine, Colorectal Neoplasms mortality, Colorectal Neoplasms pathology, Deoxycytidine administration & dosage, Deoxycytidine analogs & derivatives, Disease-Free Survival, Female, Fluorouracil administration & dosage, Fluorouracil analogs & derivatives, Humans, Liver Neoplasms mortality, Liver Neoplasms secondary, Logistic Models, Lung Neoplasms mortality, Lung Neoplasms secondary, Male, Proportional Hazards Models, Treatment Outcome, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Colorectal Neoplasms drug therapy, Liver Neoplasms drug therapy, Lung Neoplasms drug therapy
- Abstract
Background: In an ageing population, a greater proportion of geriatric patients will be considered for systemic chemotherapy. Colorectal cancer (CRC) is a common malignancy and will be a major health issue in geriatrics. We used the MAX population to investigate whether age affected the improved outcome found in CRC when bevacizumab is added to capecitabine chemotherapy., Patients and Methods: MAX, a three arm study of Capecitabine (C) versus CBevacizumab (CB) versus CBMitomycin C (CBM), found an improvement in progression-free survival (PFS), with addition of B [+/- mitomycin C (MMC)] to C. This analysis assesses the effect of adding B (+/- MMC) to C on PFS, overall survival (OS), response rate (RR), toxicity and dose intensity in geriatric patients (age ≥ 75 years)., Results: Ninety-nine patients (21%) were aged 75-86 years. Baseline characteristics were well balanced. Eighty-eight per cent commenced C at the lower optional dose of 2000 mg/m(2)/day; days 1-14, q21 (61% for <75 years) and 88% were Eastern Cooperative Oncology Group 0-1. Co-morbidities were as expected in this population. The addition of B significantly improved PFS in geriatric patients(C 5.8 months versus CB 8.8 months, Hazard ratio (HR) 0.65 and C versus CBM 10.4 months HR 0.38). The interaction test for OS, RR and PFS revealed no impact of age. Dose intensity was maintained >90% in all patients. There were no major differences in toxicity patterns between age cohorts., Conclusions: Addition of B to C significantly improved PFS in this geriatric population, with similar benefits to those aged <75 years. Treatment was well tolerated with no signal of increased toxicity (including thromboembolism) when compared with those aged <75 years.
- Published
- 2012
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- View/download PDF
5. Risk of arterial thromboembolic events in patients with advanced colorectal cancer receiving bevacizumab.
- Author
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Tebbutt NC, Murphy F, Zannino D, Wilson K, Cummins MM, Abdi E, Strickland AH, Lowenthal RM, Marx G, Karapetis C, Shannon J, Goldstein D, Nayagam SS, Blum R, Chantrill L, Simes RJ, and Price TJ
- Subjects
- Adult, Age Factors, Aged, Aged, 80 and over, Angiogenesis Inhibitors therapeutic use, Antibodies, Monoclonal, Humanized therapeutic use, Aspirin therapeutic use, Bevacizumab, Colorectal Neoplasms pathology, Female, Humans, Male, Middle Aged, Neoplasm Staging, Risk Factors, Angiogenesis Inhibitors adverse effects, Antibodies, Monoclonal, Humanized adverse effects, Colorectal Neoplasms drug therapy, Thromboembolism etiology
- Abstract
Background: Bevacizumab is an antiangiogenic mAb with efficacy against several cancers, but it is associated with risk of arterial thromboembolism (ATE). Further data are needed to determine the safety of bevacizumab., Patients and Methods: We recorded grade 3, 4, or 5 ATE events and other data (including age, baseline cardiovascular risk factors, history of ATE, and aspirin use) from 471 patients with metastatic colorectal cancer in the MAX (Mitomycin, Avastin, Xeloda) trial of capecitabine monotherapy versus capecitabine with bevacizumab with or without mitomycin C., Results: Bevacizumab-treated patients had 12 grade 3, 4, or 5 ATEs (3.8% incidence). ATEs occurred in 2.1% of patients >65 years, 5% of those with a history of ATE, and 5% of those with cardiac risk factors. Age, history of ATE, or vascular risk factors did not increase risk. Aspirin users had a higher incidence than nonusers (8.9% versus 2.7%) but had higher rates of vascular risk factors., Conclusions: Bevacizumab was associated with a modestly higher risk of ATE, but safety was not significantly worse in older patients or patients with a history of ATE or vascular risk factors. The effect of aspirin in preventing ATE in patients receiving bevacizumab could not be determined from this study.
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- 2011
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6. Patients' preferences for adjuvant chemotherapy in early breast cancer: what makes AC and CMF worthwhile now?
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Duric VM, Stockler MR, Heritier S, Boyle F, Beith J, Sullivan A, Wilcken N, Coates AS, and Simes RJ
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- Adult, Aged, Breast Neoplasms psychology, Chemotherapy, Adjuvant, Cyclophosphamide therapeutic use, Doxorubicin therapeutic use, Female, Fluorouracil therapeutic use, Humans, Life Expectancy, Methotrexate therapeutic use, Middle Aged, Neoadjuvant Therapy, Prognosis, Risk Factors, Surveys and Questionnaires, Survival Rate, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Breast Neoplasms drug therapy, Patient Satisfaction
- Abstract
Background: Studies of women who had adjuvant chemotherapy for early breast cancer 10-20 years ago showed that many judged small benefits sufficient to make it worthwhile. Indications, regimens and supportive care have changed. We sought the preferences of contemporary women who received similar chemotherapy., Patients and Methods: Ninety-seven consecutive consenting women who completed adjuvant chemotherapy for early breast cancer 3-34 months previously were interviewed. Preferences were elicited with a structured, scripted interview using the trade-off method. Women were presented with four hypothetical scenarios based on known life expectancies (5 and 15 years) and survival rates (65% and 85% at 5 years) without adjuvant chemotherapy., Results: Improvements of an additional year in life expectancy or 3% in survival rates were judged sufficient to make adjuvant chemotherapy worthwhile by 68-84% of women. Half the women judged 1 day or 0.1% sufficient to make adjuvant chemotherapy worthwhile. Recollections of better well-being during adjuvant chemotherapy, having dependants and having a friend or relative who died from cancer were independently associated with judging smaller benefits sufficient to make adjuvant chemotherapy worthwhile (all P < 0.05)., Conclusions: Preferences were highly variable, but the benefits judged sufficient to make adjuvant chemotherapy worthwhile were even smaller than those found in previous studies. Preferences were influenced by factors other than direct benefits and harms of chemotherapy.
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- 2005
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7. Improved quality of life with megestrol acetate in patients with endocrine-insensitive advanced cancer: a randomised placebo-controlled trial. Australasian Megestrol Acetate Cooperative Study Group.
- Author
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Beller E, Tattersall M, Lumley T, Levi J, Dalley D, Olver I, Page J, Abdi E, Wynne C, Friedlander M, Boadle D, Wheeler H, Margrie S, and Simes RJ
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- Aged, Appetite Stimulants adverse effects, Dose-Response Relationship, Drug, Double-Blind Method, Female, Hormones therapeutic use, Humans, Male, Megestrol Acetate adverse effects, Middle Aged, Placebos, Surveys and Questionnaires, Survival Rate, Treatment Outcome, Appetite Stimulants therapeutic use, Megestrol Acetate therapeutic use, Neoplasms therapy, Nutritional Status, Quality of Life
- Abstract
Purpose: To investigate the effect of two doses of megestrol acetate (MA) compared with placebo on quality of life (QoL) and nutritional status (NS) in patients with advanced endocrine-insensitive cancer., Patients and Methods: Two hundred forty patients were randomised to double-blind MA 480 mg/day, MA 160 mg/day, or matching placebo for 12 weeks. Nutritional status (including weight, skinfold thickness and midarm circumference) and QoL (using 6 linear analogue self-assessment (LASA) scales) were assessed at randomisation and after four, eight and 12 weeks. A QoL ranking incorporating QoL and death was also used ranging from 1 = dead to 5 = much better QoL., Results: One hundred seventy-four patients were assessable at week four, 136 at week eight and 103 patients at week 12. Patients receiving MA reported substantially better appetite (P = 0.001), mood (P = 0.001) and overall quality of life (P < 0.001), and possibly less nausea and vomiting (P = 0.08) than patients receiving placebo, based on a test for trend. A larger benefit was seen with the higher dose which (unlike the lower dose) was significantly better in pairwise comparisons with placebo for appetite, mood and overall QoL (each P < or = 0.001). Despite some missing data on QoL scores, QoL ranking was available on 227 (95%) of patients with significantly higher QoL ranking associated with MA (P = 0.002). Improvements in QoL occurred early within four weeks and were sustained. No statistically significant differences were observed in NS measurements, including weight (P = 0.29). Side effects of therapy were minor and did not differ significantly across treatments., Conclusion: Megestrol acetate given at 480 mg/day is useful palliation in patients with endocrine-insensitive advanced cancer. It improves appetite, mood and overall quality of life in these patients, although not through a direct effect on nutritional status.
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- 1997
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8. Improving cancer care: transferring clinical research into practice through treatment guidelines.
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Simes RJ and Tattersall MH
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- Female, Humans, Quality of Health Care, Guidelines as Topic, Information Services, Ovarian Neoplasms therapy
- Published
- 1990
- Full Text
- View/download PDF
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