Is There a Benefit of Addition Docetaxel, Abiraterone, Celecoxib, or Zoledronic Acid in Initial Treatments for Patients Older Than 70 Years With Hormone-sensitive Advanced Prostate Cancer? A Meta-analysis
Abstract
BACKGROUND
Results from large randomized controlled trials combining docetaxel, abiraterone, celecoxib, or bisphosphonates with androgen deprivation therapy (ADT) in hormone-sensitive prostate cancer have emerged. However, in our knowledge, few data are available in patients older than 70 years. Therefore, we undertook a meta-analysis of all published phase III studies.
MATERIALS AND METHODS
We performed a PubMed search using the keywords: "hormone sensitive prostate cancer," "phase III studies," "docetaxel," "abiraterone," "celecoxib," and "bisphosphonates." We also screened American Society of Clinical Oncology and European Society for Medical Oncology proceedings. Combination therapies were compared with ADT alone. The efficacy outcomes were overall survival (OS) and progression-free survival (PFS). Hazard ratios (HRs) with their 95% confidence intervals (CIs) were collected from the studies and pooled. A hazard ratio of less than 1.00 favored the combination group.
RESULTS
This meta-analysis included 8 studies: 3 assessed docetaxel (CHAARTED, STAMPEDE arm E and C), 2 others assessed abiraterone (LATITUDE and STAMPEDE arm G); 2 others assessed celecoxib (STAMPEDE arm D and F), and the last one assessed zoledronic acid alone (STAMPEDE arm B). Our meta-analysis included 2264 patients (86% with metastases). Concerning age, we chose a cutoff of 70 years, corresponding to the available data for each study. The performance index was 0 to 1 for about 90% of patients. Overall, in…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 2,264 participants or records.
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