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Rheumatoid ArthritisJuly 2019Summary reviewed July 2026

A JAK Inhibitor Pill Relieved Arthritis Symptoms in 66% of Treatment-Resistant Patients

Researchers tested filgotinib in people with rheumatoid arthritis who hadn't improved with other treatments. After 12 weeks, 66% of patients taking the higher dose had significant symptom improvement, compared to 31% taking a placebo.

What the trial was testing

The FINCH 2 enrolled 449 patients with rheumatoid arthritis. The study was sponsored by Gilead Sciences and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was a large trial designed to confirm whether the treatment works well enough for wider use. Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.

What the results showed

66% of patients taking filgotinib 200 mg had significant symptom improvement at 12 weeks.

JAMA · 2019 · NCT02873936

These findings — that had significant symptom improvement with filgotinib 200 mg versus 31% with placebo — were published in the JAMA and represent the headline result of the study.

Researchers tracked outcomes across 449 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with rheumatoid arthritis, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

Filgotinib is FDA-approved for rheumatoid arthritis under the brand name Jyseleca. It's an option for people whose symptoms haven't improved with other treatments. This trial showed it helped reduce joint pain and swelling in people who had already tried other medications. Talk to your rheumatologist about whether filgotinib might work for you.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.