Gilead Abandons Jyseleca for RA in the U.S.

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Gilead Sciences and Galapagos are scrapping the U.S. development of Jyseleca (filgotinib) for Rheumatoid Arthritis (RA) after a recent meeting with FDA to discuss an 8/18 NDA complete response letter over testicular toxicity concerns. FDA told the companies that “substantial additional clinical studies” would be required to support a 200mg dose. Filgotinib is approved and marketed in Europe and Japan for treating adults with moderately to severely active RA who have responded inadequately or are intolerant to one or more disease modifying anti-rheumatic drugs.

 

During its NDA review, the agency requested data from the MANTA and MANTA RAy studies, which are intended to assess whether filgotinib has an impact on sperm parameters. “Week 26 data from the MANTA and MANTA-RAy studies, including primary and key secondary endpoints, will be available by mid-2021 and the parties expect to submit the data to regulatory authorities shortly thereafter,” the companies say. “In order to complete their review of filgotinib in RA or other future indications, the FDA has requested up to Week 52 follow-up data for patients who show >50% decrease in semen parameters by Week 26 and do not recover in the ongoing MANTA and MANTA-RAy studies.”

 

Gilead and Galapagos say they will continue to investigate the potential for filgotinib to support patients living with inflammatory bowel disease.

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