aTyr Pharma Reports Mixed Results in Lung Trial

Share

aTyr Pharma is reporting mixed topline results from its Phase 3 EFZO-FIT study of efzofitimod in pulmonary sarcoidosis, a chronic inflammatory lung disease. While the trial did not meet its primary endpoint, the therapy demonstrated encouraging improvements in quality-of-life measures and steroid reduction, the company says. aTyr said it plans to discuss the results with FDA to determine a regulatory path forward.

The 268-patient study failed to show a statistically significant difference in the primary endpoint of mean daily oral corticosteroid (OCS) reduction at 48 weeks, according to the company. Patients receiving 5.0 mg/kg of efzofitimod reduced their average OCS dose to 2.79 mg compared with 3.52 mg for placebo, it says.

Despite the miss, aTyr says efzofitimod showed potential clinical benefit across several secondary measures, such as 52.6% of patients on the higher dose achieved complete steroid withdrawal, compared with 40.2% on placebo, and patients on 5.0 mg/kg showed greater improvement in King’s Sarcoidosis Questionnaire-Lung scores than placebo. Efzofitimod was well-tolerated, with a safety profile consistent with earlier trials, it adds.

Read more