Journal
EUROPEAN JOURNAL OF CANCER
Volume 103, Issue -, Pages 78-87Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ejca.2018.08.010
Keywords
Abiraterone acetate; Combined modality therapy; Docetaxel; Quality of life; Network meta-analysis; Prostatic neoplasms; Survival
Categories
Funding
- Janssen Global Services, LLC.
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Aim: Androgen deprivation therapy (ADT) has long been the gold standard for patients with metastatic hormone-sensitive prostate cancer (mHSPC). Clinical trials have demonstrated significant survival benefits when docetaxel (DOC) or abiraterone acetate (AA) and prednisone (P) are added to ADT, necessitating comparison of these combination treatments. Methods: A systematic review of randomised controlled trials (RCTs) of AA-/ADT-/DOC-containing treatment regimens in newly diagnosed patients with high-risk and/or high-volume mHSPC identified three RCTs (LATITUDE, CHAARTED and GETUG-AFU 15). Network meta-analyses (NMAs) using fixed effects Bayesian methods were performed to compare relative benefits of each treatment on overall survival (OS), radiographic progression-free survival (rPFS) and quality of life (QoL) measured by the Brief Pain Inventory, and the Functional Assessment of Cancer Therapy-Prostate questionnaire. One trial, STAMPEDE, was assessed in exploratory OS analyses. Results: The hazard ratio (HR) for OS ranged from 0.85 to 0.92, with the Bayesian probability of AA + P + ADT being better than DOC + ADT ranging between 72% and 87%. For rPFS, the HR ranged between 0.71 and 0.76 (Bayesian probability range: 93%-97%). Exploratory analyses including STAMPEDE found similar trends. AA + P + ADT also showed improved QoL compared with DOC + ADT for at least 1 year of therapy, with results being more pronounced at 3 months. Conclusion: Our findings suggest that AA + P + ADT is at least as effective as DOC + ADT in reducing the risk of death in men with mHSPC and better at preventing disease progression and improving QoL. The NMA provides useful insights to clinicians and other decision-makers on the relative efficacy of treatment options for men with mHSPC. (C) 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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