aTyr Pharma to launch new Phase 3 study of efzofitimod in pulmonary sarcoidosis after FDA feedback

aTYR PHARMA INC

• Cash, cash equivalents, and investments totaled $68.3M as of March 31, 2026 (unaudited).
• FDA Type C meeting endorsed FVC as primary endpoint and KSQ-Lung as key secondary in new Phase 3.
• New trial to enroll ~372 patients with restrictive lung disease (FVC ≤80% predicted) on stable corticosteroids.
• Dosing changed to 5.0 mg/kg every 3 weeks (from every 4 weeks) with enhanced safety monitoring.
• Company plans to submit IND for this Phase 3 study in June 2026.

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