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PsoriasisApril 2022Summary reviewed August 2026

Adding a Biologic Drug Helped 41% of Psoriatic Arthritis Patients vs. 13% on Higher Methotrexate Alone

Patients with psoriatic arthritis who weren't doing well on a low dose of methotrexate did much better when doctors added a biologic injection called adalimumab. After 16 weeks, 41% of patients who got the combination reached minimal disease activity, compared to just 13% who only increased their methotrexate dose.

What the trial was testing

The CONTROL enrolled 246 patients with psoriasis. The study was sponsored by AbbVie and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was long-term safety (phase 4). 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

41% of patients reached minimal disease activity with the combination therapy vs. 13% with higher methotrexate alone.

The Lancet. Rheumatology · 2022 · NCT02814175

These findings — that patients who added a biologic did three times better than those who just raised their methotrexate dose — were published in the The Lancet. Rheumatology and represent the headline result of the study.

Researchers tracked outcomes across 246 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 psoriasis, 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

If you have psoriatic arthritis and methotrexate alone isn't controlling your symptoms, this study suggests adding a biologic injection works better than just raising the methotrexate dose. Adalimumab is FDA-approved for psoriatic arthritis. Talk to your rheumatologist about whether adding a biologic makes sense 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.