Meta-analysis of aprepitant combination regimens (ACR) for prevention of chemotherapy-induced nausea and vomiting (CINV) in adults.

e20622 Background: Various randomized controlled trials (RCTs) have shown improved outcomes with addition of aprepitant to standard antiemetic treatment (SAT) in preventing CINV. We conducted a meta-analysis to study the overall impact of ACR in CINV prevention in adults. Methods: We searched Pubmed and Ovid databases, and American Society of Clinical Oncology meetings abstracts for RCTs using ACR with SAT for CINV prevention in adult cancer patients (pts). Major study end points were complete response to treatment (CR; defined as no emesis and no use of rescue medications) in overall phase (OP; 0-120 hours of chemotherapy), acute phase (AP; 0-24 hours) and delayed phase (DP; 24-120 hours). Additionally, we assessed the control of nausea and toxicity profile (TP). Stoufferu0027s Z-score method was used to calculate the overall effect. Results: 16 RCTs (5,547 pts) were included. 11 trials (3,314 pts) involved highly emetogenic chemotherapy (HEC) and 5 trials (2,233 pts) involved moderately emetogenic chemother...