Integrated safety analysis of filgotinib in patients with moderately to severely active rheumatoid arthritis receiving treatment over a median of 1.6 years.

To characterise safety of the Janus kinase-1 preferential inhibitor filgotinib in patients with moderately to severely active rheumatoid arthritis. Data were integrated from seven trials (NCT01668641, NCT01894516, NCT02889796, NCT02873936, NCT02886728, NCT02065700, NCT03025308). Results are from placebo (PBO)-controlled (through week (W)12) and long-term, as-treated (all available data for patients receiving ≥1 dose filgotinib 200 (FIL200) or 100 mg (FIL100) daily) datasets. We calculated exposure-adjusted incidence rates (EAIRs)/100 patient-years filgotinib exposure (100PYE) for treatment-emergent adverse events (TEAEs). 3691 patients received filgotinib for 6080.7 PYE (median 1.6, maximum 5.6 years). During the PBO-controlled period, TEAEs, including those of grade ≥3, occurred at comparable rates with filgotinib or PBO; long-term EAIRs of TEAEs grade ≥3 were 6.4 and 7.6/100PYE for FIL200 and FIL100. EAIRs for deaths were 0.6/100PYE for FIL200, FIL100 and PBO; long-term EAIRs were 0.5 and 0.3/100PYE for FIL200 and FIL100. EAIRs for serious infection were 3.9, 3.3 and 2.4/100PYE for FIL200, FIL100 and PBO; long-term EAIRs were 1.6 and 3.1/100PYE for FIL200 and FIL100. EAIRs for herpes zoster were 0.6, 1.1, and 1.1/100PYE for FIL200, FIL100 and PBO; long-term EAIRs were 1.8 and 1.1/100PYE for FIL200 and FIL100. EAIRs for major adverse cardiovascular events were 0, 1.7 and 1.1/100PYE for FIL200, FIL100 and PBO; long-term EAIRs were 0.4 and 0.6/100PYE for FIL200 and FIL100. No venous thromboembolism occurred during the PBO-controlled period; long-term EAIRs were 0.2 and 0/100PYE for FIL200 and FIL100. Over a median of 1.6 and maximum of 5.6 years of exposure, safety/tolerability of FIL200 and FIL100 were similar, with a lower incidence of infections with FIL200 among the long-term, as-treated dataset.

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Competing interests: KLW reports receiving grant/research support from AbbVie, Bristol Myers Squibb, and Pfizer and serving as a consultant for AbbVie, Bristol Myers Squibb, Eli Lilly and Co., Galapagos NV, Gilead Sciences, Inc., GlaxoSmithKline, Pfizer, Roche, Regeneron, Sanofi, and UCB. YT has received speaking fees and/or honoraria from Daiichi Sankyo, Eli Lilly, Novartis, YL Biologics, Bristol Myers, Eisai, Chugai, AbbVie, Astellas, Pfizer, Sanofi, Asahi-kasei, GSK, Mitsubishi-Tanabe, Gilead Sciences, Inc., Janssen; research grants from AbbVie, Mitsubishi-Tanabe, Chugai, Asahi Kasei, Eisai, Takeda, Daiichi Sankyo; and consultant fees from Eli Lilly, Daiichi Sankyo, Taisho, Ayumi, Sanofi, GSK, and AbbVie. TT reports receiving grant/research support from AbbVie, Asahi Kasei, Astellas, Chugai, Daiichi Sankyo, Eisai, Mitsubishi-Tanabe, Shionogi, Takeda, and UCB Japan; serving as a consultant for Astellas, Chugai, and Eli Lilly Japan; and serving on a speaker’s bureau for AbbVie, AYUMI, Bristol Myers Squibb, Chugai, Daiichi Sankyo, Eisai, Eli Lilly Japan, Gilead Sciences, Inc., Mitsubishi-Tanabe, Novartis, Pfizer Japan, Sanofi, and Dainippon Sumitomo. AK is a shareholder of Gilead Sciences, Inc., GlaxoSmithKline, Novartis, Pfizer, and Sanofi; serving as a consultant or advisor for AbbVie, Boehringer Ingelheim, Flexion, Genzyme, Gilead Sciences, Inc., Janssen, Novartis, Pfizer, Regeneron, Sanofi, and SUN Pharma Advanced Research; serving as a paid instructor for Celgene, Genzyme, Horizon, Merck, Novartis, Pfizer, Regeneron, and Sanofi; and serving on a speaker’s bureau for AbbVie, Celgene, Flexion, Genzyme, Horizon, Lilly, Merck, Novartis, Pfizer, Regeneron, and Sanofi. FM, DJ, KC, and BB are employees and shareholders of Gilead Sciences, Inc. AJ is an employee of Novartis, a former employee of Gilead Sciences, Inc., and a shareholder of Gilead Sciences, Inc., Novartis, and Roche. MCG is a shareholder and employee of Gilead Sciences, Inc. and has received honoraria or consulting fees from AbbVie, Amgen, Beigene, Genentech, Gilead Sciences, Inc., Lilly Pharmaceuticals, Sanofi Genzyme, RPharm, and SetPoint. RB is a shareholder and employee of Galapagos. GRB reports serving as a consultant and on a speaker’s bureau for AbbVie, Eli Lilly and Co., Galapagos, Gilead Sciences, Inc., and Pfizer. J-EG reports receiving grant/research support from Bristol Myers Squibb and Pfizer; serving as a consultant to AbbVie, Bristol Myers Squibb, Galapagos, Gilead Sciences, Inc., Pfizer, Eli Lilly and Co., and Sanofi Genzyme; and serving on a speaker’s bureau for AbbVie, Eli Lilly and Co., Roche, Sanofi Genzyme, and UCB.