aTyr Pharma, Inc.
This is a 2-Part study with Part A, a double-blind, randomized, placebo-controlled, PoC study to evaluate the efficacy, safety, and tolerability of efzofitimod in patients with SSc-ILD. The primary objective of the study is to evaluate the PoC for efficacy in a population with SSc-ILD. While improvement of ILD is the outcome of interest, the study will also evaluate changes in the skin. After initial screening (up to 4 weeks), approximately 25 eligible participants will be randomized 2:2:1 to 1 of 2 active (experimental) dose arms or placebo, administered every 4 weeks up to and including Week 20. Part B is an optional open-label extension to Part A in which participants can receive 450 mg efzofitimod every 4 weeks for 6 doses.
Inclusion Criteria: 1. Diagnosis of SSc based on ACR/ EULAR criteria (2013) 2. Overall duration of SSc \< 84 months from the first non-Raynaud symptom manifestation prior to Day 1 3. HRCT obtained at the Screening Visit or within the 3 months prior to Screening consistent with SSc-ILD (adjudicated by a central reader) AND with pulmonary involvement \> 10% 4. Clinical presentation at Screening consistent with lcSSc (up to 40% of patients) or dcSSc 5. MMF of ≥ 2 gm/day (or equivalent doses of other mycophenolate based compounds) for 3 months prior to Day 1 OR When documented intolerance to myco…
IV infusion over approximately 60 minutes every 4 weeks
IV infusion over approximately 60 minutes every 4 weeks
IV infusion over approximately 60 minutes every 4 weeks