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LUPUSJanuary 2020Summary reviewed June 2026

What the TULIP-2 Study Found — Anifrolumab for Lupus

Researchers tested anifrolumab, a monthly infusion, in 362 adults with active lupus. After one year, 48% of people taking anifrolumab had meaningful improvement in their disease compared to 32% taking a dummy treatment.

What the trial was testing

The TULIP-2 enrolled 373 patients with lupus. The study was sponsored by AstraZeneca 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

Anifrolumab helped 48% of patients achieve meaningful lupus improvement after one year.

The New England journal of medicine · 2020 · NCT02446899

These findings — that nearly half of patients had meaningful disease improvement versus 32% on dummy treatment — were published in the The New England journal of medicine and represent the headline result of the study.

Researchers tracked outcomes across 373 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 lupus, 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

Anifrolumab is FDA-approved for adults with moderate to severe lupus who haven't responded well enough to standard treatments. It's given as a monthly IV infusion. Talk to your rheumatologist about whether this medicine might be right for you, especially if your current treatment isn't controlling your symptoms well enough.

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.