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aTyr Pharma Announces Fourth Positive DSMB Review for Efzofitimod in Phase 3 EFZO-FIT™ Study in Pulmonary Sarcoidosis

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aTyr Pharma, Inc.
aTyr Pharma, Inc.

No safety concerns identified by independent data and safety monitoring board (DSMB), which recommends continuation of study without any modifications.

SAN DIEGO, March 06, 2025 (GLOBE NEWSWIRE) -- aTyr Pharma, Inc. (Nasdaq: ATYR) (“aTyr” or the “Company”), a clinical stage biotechnology company engaged in the discovery and development of first-in-class medicines from its proprietary tRNA synthetase platform, today announced the outcome of a fourth, pre-planned interim safety analysis conducted by an independent data and safety monitoring board (DSMB) for the ongoing Phase 3 EFZO-FIT study of the Company’s lead therapeutic candidate, efzofitimod, in patients with pulmonary sarcoidosis. The DSMB recommended that the study continue without any modifications.

“The positive outcome from this fourth DSMB review for EFZO-FIT further reinforces our confidence in the favorable safety profile that we have seen for efzofitimod to date,” said Sanjay S. Shukla, M.D., M.S., President and Chief Executive Officer of aTyr. “As we look to position efzofitimod as a potential chronic, maintenance therapy for patients with pulmonary sarcoidosis that can reduce or eliminate the use of oral corticosteroids, we are pleased to see no safety concerns arise as the study progresses. We look forward to reporting topline results from EFZO-FIT in the third quarter of this year.”

EFZO-FIT is a global Phase 3 randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of efzofitimod in patients with pulmonary sarcoidosis. This is a 52-week study consisting of three parallel cohorts randomized equally to either 3.0 mg/kg or 5.0 mg/kg of efzofitimod or placebo dosed intravenously once a month for a total of 12 doses. The study enrolled 268 subjects with pulmonary sarcoidosis at multiple centers in the United States, Europe, Japan and Brazil. The trial design incorporates a forced steroid taper. The primary endpoint of the study is steroid reduction. Secondary endpoints include measures of lung function and sarcoidosis symptoms. More information on the EFZO-FIT study is available at www.clinicaltrials.gov (NCT05415137).

About Efzofitimod

Efzofitimod is a first-in-class biologic immunomodulator in clinical development for the treatment of interstitial lung disease (ILD), a group of immune-mediated disorders that can cause inflammation and fibrosis, or scarring, of the lungs. Efzofitimod is a tRNA synthetase derived therapy that selectively modulates activated myeloid cells through neuropilin-2 to resolve inflammation without immune suppression and potentially prevent the progression of fibrosis. aTyr is currently investigating efzofitimod in the global Phase 3 EFZO-FIT™ study in patients with pulmonary sarcoidosis, a major form of ILD, and in the Phase 2 EFZO-CONNECT™ study in patients with systemic sclerosis (SSc, or scleroderma)-related ILD. These forms of ILD have limited therapeutic options and there is a need for safer and more effective, disease-modifying treatments that improve outcomes.