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Clinical Trials/NCT07593092
NCT07593092RecruitingPhase 1

A Phase 1 Trial, Evaluating the Safety and Tolerability of XmAb541 in Combination With XmAb808 in Advanced Solid Tumors

Xencor, Inc.13 sites in 1 country90 target enrollmentStarted: June 30, 2026Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Phase 1
Status
Recruiting
Enrollment
90
Locations
13

Study Overview

Brief Summary

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.

Study Design

Study Type
Interventional
Allocation
Na
Intervention Model
Sequential
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
Female
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age ≥ 18 years.
  • CLDN6+ tumor
  • Histological or cytological documentation of locally advanced, recurrent, or metastatic high grade serous ovarian carcinoma (HGSOC) including fallopian tube or primary peritoneal origin
  • Adequate Eastern Cooperative Oncology Group performance status
  • Life expectancy ≥ 3 months
  • Adequate organ function

Exclusion Criteria

  • Prior exposure to a CLDN6 targeting immune cell engager
  • Patients with treated brain metastases may participate, provided they are radiologically stable.
  • Active known or suspected autoimmune disease
  • Have any condition requiring systemic treatment with corticosteroids, prednisone equivalents, or other immunosuppressive medications within 14 days prior to first dose of study drug
  • Clinically significant cardiovascular, pulmonary or gastrointestinal disease
  • Active viral hepatitis B or hepatitis C

Arms & Interventions

Dose Escalation and Dose Expansion of XmAb541 and XmAb808

Experimental

Intervention: XmAb808 (Biological)

Dose Escalation and Dose Expansion of XmAb541 and XmAb808

Experimental

Intervention: XmAb541 (Biological)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (13)

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