Clinical trials

7

Search and review clinical trials. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Phase 1, Safety and Tolerability Study of XmAb541 and XmAb808 in Advanced Solid Tumors

The primary purpose of this study is to determine whether the combination of the investigational drug XmAb541 in combination with the investigational drug XmAb808 is safe and well tolerated, and to determine an optimal and safe dose(s) for further study. The study will also evaluate the effect of XmAb541 in combination with XmAb808 on participants' tumor outcomes.

Participants needed: 90
Trial details
Phase: Phase 1Age: 18+Biological sex: FemaleType: InterventionalSponsor: Xencor, Inc.Updated: Aug 13, 2026Locations: 4
Eligibility criteria

Age ≥ 18 years. [+5]

Prior exposure to a CLDN6 targeting immune cell engager [+5]

Status: Recruiting

Study of XmAb412 in Healthy Participants

This Phase 1 Study will evaluate the safety, tolerability, pharmacokinectics and pharmacodynamics of XmAb412 in healthy adult participants

Participants needed: 128
Trial details
Phase: Phase 1Age: 18-55Biological sex: AllType: InterventionalSponsor: Xencor, Inc.Updated: Aug 3, 2026Locations: 2
Eligibility criteria

Age 18-55 years old [+4]

Any physical condition that prohibits study completion [+6]

Status: Recruiting

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

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.

Participants needed: 60
Trial details
Phase: Phase 1Age: 18-75Biological sex: AllType: InterventionalSponsor: Xencor, Inc.Updated: Aug 3, 2026Locations: 1
Eligibility criteria

Major surgery within 12 weeks prior to dosing or planned within the study [+4]

Status: Recruiting

A Phase 1b Open-label Study to Evaluate Safety of Plamotamab in Participants With Rheumatoid Arthritis

The purpose of this study is to determine the safety and tolerability of plamotamab in patients with rheumatoid arthritis. Participants will be given XmAb13676 subcutaneously (SC) by injection under the skin.

Participants needed: 68
Trial details
Phase: Phase 1Age: 18+Biological sex: AllType: InterventionalSponsor: Xencor, Inc.Updated: Aug 3, 2026Locations: 3
Eligibility criteria

Documented diagnosis of RA and meeting the 2010 American College of Rheumatology... [+3]

Major surgery within 12 weeks prior to screening or planned within 12 months aft... [+4]

Status: Recruiting

Study of XmAb®819 in Subjects With Advanced Clear Cell Renal Cell Carcinoma

The purpose of this study is to assess the safety and tolerability of XmAb®819 administered intravenous (IV) or subcutaneous (SC) in subjects with relapsed or refractory clear cell renal cell carcinoma and to identify the minimum safe and biologically active dose and the recommended dose (RD).

Participants needed: 307
Trial details
Phase: Phase 1Age: 18+Biological sex: AllType: InterventionalSponsor: Xencor, Inc.Updated: Aug 3, 2026Locations: 26
Eligibility criteria

Subjects must have measurable disease by Response Evaluation Criteria in Solid T... [+3]

Prior treatment with an investigational anti-ENPP3/CD203c therapy [+7]

Status: Recruiting

Study of XmAb942 in Healthy Participants and Participants With Ulcerative Colitis

The Phase 1 study described herein will evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of XmAb942 in healthy volunteers (Parts A and B). Part C of this study will be a Phase 2 study to evaluate XmAb942 in participants with ulcerative colitis (UC).

Participants needed: 270
Trial details
Phase: Phase 1, Phase 2Age: 18-75Biological sex: AllType: InterventionalSponsor: Xencor, Inc.Updated: Jul 24, 2026Locations: 90
Eligibility criteria

Age 18-55 [+12]

Any physical or psychological condition that prohibits study completion [+15]

Status: Recruiting

Phase 1, Safety and Tolerability Study of XmAb541 in Advanced Solid Tumors

The primary purpose of this study is to determine whether the investigational drug XmAb541 is safe and well tolerated, and to determine an optimal and safe dose(s) for further study. The study will also evaluate the effect of XmAb541 on tumor outcomes.

Participants needed: 282
Trial details
Phase: Phase 1Age: 15+Biological sex: AllType: InterventionalSponsor: Xencor, Inc.Updated: Jun 11, 2026Locations: 18
Eligibility criteria

Age ≥ 18 years. For US only: subjects with GCTs, age ≥15 years [+5]

Patients with treated brain metastases may participate, provided they are radiol... [+4]