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A Phase 1 Open-label Study to Evaluate Safety in Healthy Participants and Participants With Autoimmune Diseases

RECRUITINGPhase 1Sponsored by Xencor, Inc.
Actively Recruiting
PhasePhase 1
SponsorXencor, Inc.
Started2026-02-24
Est. completion2028-10
Eligibility
Age18 Years – 75 Years
Healthy vol.Accepted
View on ClinicalTrials.gov →

NCT07284797

Summary

The purpose of this study is to determine the safety and tolerability of XmAb657 in healthy participants and participants with autoimmune diseases. Participants will be given XmAb657 subcutaneously (SC) by injection under the skin.

Eligibility

Age: 18 Years – 75 YearsHealthy volunteers accepted
Inclusion Criteria:

Healthy participants - Adult participants in good health

Idiopathic inflammatory myopathy (IIM) participants - Adult participants that meet the 2017 European Alliance of Association Rheumatology (EULAR)/American College of Rheumatology (ACR) Classification Criterion for IIM

Systemic sclerosis (SSc) participants - Adult participants that meet the 2013 ACR/EULAR Classification Criteria for SSc

Sjogren's Disease participants that meet the 2016 ACR/EULAR Classification Criteria for Primary Sjogren's Syndrome

All participants - Use of highly effective methods of contraception

Exclusion Criteria:

* Major surgery within 12 weeks prior to dosing or planned within the study
* Recurrent infections or active clinically significant infection
* Active or untreated latent tuberculosis
* Cancer or history of cancer or lymphoproliferative disease within the previous 5 years
* Uncontrolled cardiovascular, pulmonary, renal, hepatic, endocrine, or gastrointestinal disease

Note: Additional, more specific inclusion/exclusion criteria are defined in the protocol.

Conditions5

ArthritisHealthyIdiopathic Inflammatory MyopathiesSjögren's DiseaseSystemic Sclerosis

Interventions1

XmAb657

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Trial data from ClinicalTrials.gov. Trial status and eligibility can change — verify directly with the study contact or on ClinicalTrials.gov.

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