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LUPUSMarch 2018Summary reviewed July 2026

What Researchers Found Testing Sirolimus for Lupus

Scientists tested sirolimus in 40 people with active lupus who hadn't responded to standard treatments. After 12 months, more than half showed meaningful improvement in their symptoms and were able to reduce their steroid doses by two-thirds.

What the trial was testing

The trial enrolled 99 patients with lupus. The study was sponsored by State University of New York - Upstate Medical University and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was an early-stage trial — researchers are still confirming safety and getting an early look at how well the treatment works. 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

Disease activity scores dropped significantly, and patients cut their daily steroid dose from 24 mg to 7 mg on average.

Lancet (London, England) · 2018 · NCT00779194

These findings — that more than half of participants showed reduced disease activity after a year of treatment — were published in the Lancet (London, England) and represent the headline result of the study.

Researchers tracked outcomes across 99 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

This was an early-stage study and sirolimus is not yet FDA-approved specifically for lupus. The medication is already approved for other conditions, so some doctors may prescribe it off-label. Ask your rheumatologist whether sirolimus or similar treatments might be appropriate for your situation.

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.