tofacitinib - Generic mfg.
Jyseleca (filgotinib) - Alfasigma, Gilead
Rinvoq (upadacitinib) - AbbVie
Olumiant (baricitinib) - Eli Lilly
Pregnancy outcome after first-trimester exposure to JAK inhibitors - an evaluation of the German Embryotox cohort. (PubMed, BMC Pharmacol Toxicol) - Oct 23, 2026 - "The current evidence is insufficient to establish or exclude an association between JAK inhibitor exposure and adverse fetal outcomes. To date, the potential for harmful effects cannot be ruled out due to the limited available data. Therefore, routine use of JAKi during pregnancy is not recommended and treatment should be approached with caution, and requires a critical risk-benefit assessment until further data is obtained." 
Journal • CNS Disorders • Dermatology • Immunology • Rheumatology • Small for Gestational Age
http://www.ncbi.nlm.nih.gov/pubmed/42908038
 
Anna-Sophia Habbel; Anne Mueller; Evelin Beck; Katarina Dathe
 
Oct 23, 2026
 
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