PMID- 31777801 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220411 IS - 2578-5745 (Electronic) IS - 2578-5745 (Linking) VI - 1 IP - 4 DP - 2019 Jun TI - Safety of Abatacept Versus Placebo in Rheumatoid Arthritis: Integrated Data Analysis of Nine Clinical Trials. PG - 251-257 LID - 10.1002/acr2.1034 [doi] AB - OBJECTIVE: To assess the safety of abatacept treatment in rheumatoid arthritis (RA) using integrated data from multiple clinical trials. METHODS: Data from nine double-blind, placebo-controlled studies of abatacept treatment (seven intravenous, two subcutaneous) in patients with RA were pooled, focusing on safety events in the double-blind treatment period of each study. Incidence rates (IRs) of adverse events (AEs) per 100 patient-years of exposure were calculated for abatacept- and placebo-treated patients. AEs in abatacept-treated patients were combined regardless of dose and formulation. RESULTS: In total, 2653 patients received abatacept and 1485 received placebo, with 2357 and 1254 patient-years of exposure, respectively. The mean (SD) durations of exposure in the abatacept and placebo groups were 10.8 (3.3) and 10.3 (3.5) months, respectively. The IRs (95% confidence interval [CI]) for serious AEs were 14.8 (13.3, 16.5) and 14.6 (12.5, 17.0) in the abatacept and placebo groups, respectively. Death occurred in 12 (0.5%) and 12 (0.8%) patients in the abatacept and placebo groups, respectively, and was most commonly caused by cardiac disorders. Malignancies were observed in 31 patients (1.2%) treated with abatacept (IR: 1.32 [95% CI: 0.90, 1.87]) versus 14 (0.9%; IR: 1.12 [0.61, 1.88]) who received placebo. Solid organ tumor was the most frequent malignancy reported in both groups (abatacept: 1.0%; IR: 1.11 [95% CI: 0.72, 1.62]; placebo: 0.8%; 0.96 [0.50, 1.67]). CONCLUSION: In this integrated analysis, the IRs of safety events in the abatacept and placebo groups were similar with no new safety concerns identified. CI - (c) 2019 Bristol Myers Squibb. ACR Open Rheumatology published by Wiley Periodicals, Inc. on behalf of American College of Rheumatology. FAU - Simon, Teresa A AU - Simon TA AUID- ORCID: 0000-0003-4042-0715 AD - Bristol-Myers Squibb Princeton New Jersey. FAU - Soule, Benjamin P AU - Soule BP AD - Bristol-Myers Squibb Princeton New Jersey. FAU - Hochberg, Marc AU - Hochberg M AD - University of Maryland Baltimore. FAU - Fleming, Douglas AU - Fleming D AD - Bristol-Myers Squibb Princeton New Jersey. FAU - Torbeyns, Anne AU - Torbeyns A AD - Bristol-Myers Squibb Braine-l'Alleud Belgium. FAU - Banerjee, Subhashis AU - Banerjee S AD - Bristol-Myers Squibb Princeton New Jersey. FAU - Boers, Maarten AU - Boers M AUID- ORCID: 0000-0002-6969-283X AD - Amsterdam University Medical Centers Vrije Universiteit Amsterdam Netherlands. LA - eng PT - Journal Article DEP - 20190529 PL - United States TA - ACR Open Rheumatol JT - ACR open rheumatology JID - 101740025 PMC - PMC6858048 EDAT- 2019/11/30 06:00 MHDA- 2019/11/30 06:01 PMCR- 2019/05/29 CRDT- 2019/11/29 06:00 PHST- 2019/11/29 06:00 [entrez] PHST- 2019/11/30 06:00 [pubmed] PHST- 2019/11/30 06:01 [medline] PHST- 2019/05/29 00:00 [pmc-release] AID - ACR21034 [pii] AID - 10.1002/acr2.1034 [doi] PST - epublish SO - ACR Open Rheumatol. 2019 May 29;1(4):251-257. doi: 10.1002/acr2.1034. eCollection 2019 Jun.