aTyr Pharma Inc.
03/05/2026 | Press release | Distributed by Public on 03/05/2026 15:04
aTyr Pharma Announces Fourth Quarter and Full Year 2025 Results and Provides Corporate Update (Form 8-K)
aTyr Pharma Announces Fourth Quarter and Full Year 2025 Results and Provides Corporate Update
Company scheduled to meet with the FDA in mid-April 2026 to review the results of the Phase 3 EFZO-FIT™ study and determine the path forward for efzofitimod in pulmonary sarcoidosis.
Phase 2 EFZO-CONNECT™ study of efzofitimod in systemic sclerosis-related interstitial lung disease (SSc-ILD) on track to complete enrollment in the first half of 2026.
Ended 2025 with $80.9 million in cash, cash equivalents, restricted cash and investments.
SAN DIEGO - March 5, 2026 - 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 fourth quarter and full year 2025 results and provided a corporate update.
"In 2025 we announced results from our Phase 3 EFZO-FIT™ study of efzofitimod in pulmonary sarcoidosis, a major form of interstitial lung disease (ILD) where a significant proportion of patients develop chronic or progressive disease with debilitating symptoms despite current treatment options. This marked an important milestone, not only for the broader sarcoidosis community, but also for aTyr, as it was the Company's largest and first Phase 3 study of a tRNA synthetase-derived therapy generated from our platform," said Sanjay S. Shukla, M.D., M.S., President and Chief Executive Officer of aTyr.
"We are ready and look forward to engaging with the U.S. Food and Drug Administration (FDA) in mid-April to review the results of the study and determine the path forward for efzofitimod in pulmonary sarcoidosis. We plan to provide an update regarding the next steps for the program following the receipt of the official FDA meeting minutes."
Fourth Quarter 2025 and Subsequent Period Highlights
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Announced the scheduling of a Type C meeting with the FDA in mid-April 2026 to review the results of the Phase 3 EFZO-FIT™ study and determine the path forward for efzofitimod in pulmonary sarcoidosis. The Company expects to provide an update regarding the outcome of the meeting following the receipt of the official meeting minutes. EFZO-FIT™ was a Phase 3 study to evaluate the efficacy and safety of 3.0 mg/kg and 5.0 mg/kg of efzofitimod or placebo in 268 patients
with symptomatic pulmonary sarcoidosis. The study did not meet its primary endpoint of change from baseline in mean daily oral corticosteroid dose at week 48. Clinical benefit for 5.0 mg/kg efzofitimod was observed across multiple pre-specified study efficacy parameters at week 48 compared to placebo, including the King's Sarcoidosis Questionnaire (KSQ)-Lung score (p=0.0479), Fatigue Assessment Scale score (p=0.0226), KSQ-General Health score (p=0.0197), and complete steroid withdrawal with KSQ-Lung score improvement (p=0.0196). Additionally, treatment with efzofitimod maintained lung function as measured by forced vital capacity and was well-tolerated with a safety profile consistent with prior trials conducted to date.
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On track to complete enrollment in the Phase 2 EFZO-CONNECT™ study to evaluate the efficacy, safety and tolerability of efzofitimod in patients with limited or diffuse systemic sclerosis (SSc, or scleroderma)-related ILD (SSc-ILD) in the first half of 2026. This proof-of-concept study is a randomized, double-blind, placebo-controlled, 28-week study consisting of three parallel cohorts randomized 2:2:1 to either 270 mg or 450 mg of efzofitimod or placebo administered intravenously monthly for a total of six doses. The study intends to enroll up to 25 patients at multiple centers in the United States. Promising interim data from the study were reported in the second quarter of 2025.
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Presented a poster related to its investigational new drug candidate, ATYR0101, at the Keystone Symposia on Fibrosis: Cross Organ Pathology and Pathways to Clinical Development. The poster demonstrated that subcutaneous delivery of ATYR0101 yielded a comparable pharmacokinetic and immunogenicity profile, which is favorable to other delivery methods, while reducing lung inflammation. The findings presented in the poster suggest the ability of ATYR0101 to potentially resolve the cycle of chronic inflammation and fibrosis utilizing a novel mechanism and further support a compelling therapeutic profile for patients suffering from fibrosis. The poster is available on the Company's website.
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Published an article demonstrating the generation of a functional neuropilin-2 (NRP2)/plexinA1 (PLXNA1) bispecific antibody in the Journal of Biological Chemistry. The publication, entitled, "A bispecific antibody designed to act as a NRP2/PLXNA1 agonist mimics anticancer activity of SEMA3F," demonstrates that the bispecific antibody selectively mimics the beneficial aspects of semaphorin 3F (SEMA3F)/NRP2 signaling while avoiding potentially cross-toxic reactivity, serving as a basis for a novel anticancer therapy. The publication is available on the Company's website and at: https://www.jbc.org/article/S0021-9258%2825%2902908-4/fulltext.
Year Ended 2025 Financial Highlights and Cash Position
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Cash & Investment Position: Cash, cash equivalents, restricted cash and available-for-sale investments as of December 31, 2025, were $80.9 million.
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R&D Expenses: Research and development expenses were $60.2 million for the year ended 2025, which consisted primarily of costs for the Phase 3 EFZO-FIT™ and Phase 2 EFZO-CONNECT™ studies and research and development costs for the Company's preclinical product candidates.
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G&A Expenses: General and administrative expenses were $17.6 million for the year ended 2025.
About Efzofitimod
Efzofitimod is a novel 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. In addition to the global Phase 3 EFZO-FIT™ study of efzofitimod in patients with pulmonary sarcoidosis, a major form of ILD, efzofitimod is also being investigated 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.
About aTyr
aTyr is a clinical stage biotechnology company leveraging evolutionary intelligence to translate tRNA synthetase biology into new therapies for fibrosis and inflammation. tRNA synthetases are ancient, essential proteins that have evolved novel domains that regulate diverse pathways extracellularly in humans. aTyr's discovery platform is focused on unlocking hidden therapeutic intervention points by uncovering signaling pathways driven by its proprietary library of domains derived from all 20 tRNA synthetases. aTyr's lead therapeutic candidate is efzofitimod, a novel biologic immunomodulator in clinical development for the treatment of interstitial lung disease, a group of immune-mediated disorders that can cause inflammation and progressive fibrosis, or scarring, of the lungs. For more information, please visit www.atyrpharma.com.
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