NCT07782450
A Study to Learn About a Medicine Called PF-08154225 in Participants With Autoimmune Diseases
Not Yet Recruiting · Phase 1, Phase 2 · Pfizer · registry updated 2026-10-01
Inclusion and exclusion lines below are quoted from ClinicalTrials.gov. No match score is shown, because a score needs a person's age, biomarkers, and treatment dates. Confirm the record with the study team.
The purpose of this study is to learn about the safety and effects of the study medication called PF-08154225 for the potential treatment of autoimmune diseases. An autoimmune disease is a condition that makes a person's immune system attack its healthy cells by mistake. This study is particularly looking at autoimmune diseases called as Systemic Lupus Erythematosus (SLE), Rheumatoid Arthritis (RA), Idiopathic Inflammatory Myositis (IIM) or Systemic Sclerosis (SSc). This study is divided into 3 parts: Part 1a, Part 1b and Part 2. Parts 1a and 1b are seeking participants with Systemic Lupus Erythematosus (SLE) or Rheumatoid Arthritis and Part 2 with also Idiopathic Inflammatory Myositis (IIM) or Systemic Sclerosis (SSc). Participants can take part only in one part of the study. All participants in this study will receive PF-08154225 at the study clinic. In Part 1a participants will receive single administration of PF-08154225 after which they will be observed at the study clinic during regular visits through week 16 or longer....
Inclusion
- At age between 18 and 70 years at Screening.
- Confirmed diagnosis of RA according to the 2010 American College of Rheumatology (ACR)/ European Alliance of Associations for Rheumatology (EULAR) criteria at Screening, with symptom at least 6 months prior to Screening
- Clinical diagnosis of SLE according to the 1997 ACR Criteria for the Classification of SLE Or confirmed diagnosis of SLE according to the Systemic Lupus International Collaborating Clinics (SLICC) Classification Criteria at Screening, with symptom at least 6 months prior to Screening.
- Clinical diagnosis of 1 of the 3 IIM subtypes based on phenotype, and/or prior muscle biopsy, and positive myositis-specific autoantibody (MSA) / myositis-associated antibody (MMA)
- Classification of SSc according to the 2013 ACR/EULAR criteria at Screening
Exclusion
- Any medical or psychiatric condition, including active suicidal ideation or any laboratory abnormality, that increases study risk or makes the participant unsuitable.
- Active central nervous system (CNS) co-morbidity
- Any complications of disease under study that in the judgement of the investigator may be life or organ threatening or require prohibited medication
- Known history of a primary immunodeficiency, splenectomy, or any underlying condition that predisposes the participant to infection
- Active or recent clinically significant infections
- Chronic or active Hepatitis B and C