NCT05892614RecruitingPhase 2
Study to Evaluate the Efficacy, Safety, and Tolerability of Efzofitimod in Patients With Systemic Sclerosis (SSc)-Related Interstitial Lung Disease (ILD) (SSc-ILD)
Randomized, Double-blind, Placebo-controlled Proof-of-Concept (PoC) Study to Evaluate the Efficacy, Safety, and Tolerability of Efzofitimod in Patients With Systemic Sclerosis (SSc)-Related Interstitial Lung Disease (ILD) (SSc-ILD)
Source: ClinicalTrials.gov · Last updated 7 May 2025 · Not updated for over 12 months - ask the site whether it is still open
Brief summary (registry, in English)
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.
- Status (registry)
- Recruiting
- Phase (registry)
- Phase 2
- Study type
- Interventional
- Enrollment
- 25 (estimated)
- First submitted
- 12 May 2023
- Start date
- 26 Oct 2023
- Primary completion date
- Apr 2026
- Lead sponsor
- aTyr Pharma, Inc.
- Diseases
- Systemic sclerosis (scleroderma)
- NCT number
- NCT05892614
What you commit to
- Study type: Interventional · Phase 2
- Planned participants: 25
- From 26 Oct 2023 to the primary completion date, Apr 2026
- 13 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- HRCT obtained in the 3 months prior to Screening consistent with other confounding pathology.
- Treatment with corticosteroids (\> 10 mg/day of prednisone or equivalent) within 2 weeks prior to Day 1
- Treatment with more than 1 immunosuppressant (e.g., MMF, methotrexate \[MTX\], azathioprine \[AZA\], or leflunomide)
- Any treatment in the 12 months prior to Day 1 with any of the following: rituximab, intravenous immune globulin (IVIG), tocilizumab, cyclophosphamide, pirfenidone, tyrosine-kinase inhibitors (e.g., imatinib, nilotinib, dasatinib)
Other illness
- Pulmonary disease with FVC %pred ≤ 45% OR DLco %pred ≤ 30%; FEV1/FVC ratio \< 0.7
- Participants with pulmonary artery hypertension on parenteral therapy or with clinical evidence of right heart failure
- Rheumatic autoimmune disease other than SSc, Is an active, heavy smoker of tobacco/nicotine-containing products
- History of (anti-Jo-1) anti-synthetase syndrome or Jo-1 positive at Screening
Who the study is looking for
- Diagnosis of SSc based on ACR/ EULAR criteria (2013)
- Overall duration of SSc \< 84 months from the first non-Raynaud symptom manifestation prior to Day 1
- 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%
- Clinical presentation at Screening consistent with lcSSc (up to 40% of patients) or dcSSc
- 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 mycophenolates (in discussion with the Medical Monitor): treatment with maximum tolerated dose of MMF is acceptable, if \< 2 gm/day, provided the cumulative duration of dosing has exceeded 3 months, OR An adequate dose and duration of an alternate immunosuppressant with a stable dose for the 4 weeks prior to baseline is also allowed.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (13)
Sites in registry order. Pick your city on the disease page to sort them by distance.
This page is information, not medical advice. Discuss any trial with your doctor.