A Study of PARG Inhibitor ETX-19477 in Patients With Advanced Solid Malignancies
NCT06395519 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 120
Last updated 2026-03-27
Summary
This is a two-part, open-label, multicenter, dose escalation and dose expansion study designed to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PDx), and anti- tumor activity of ETX-19477, a novel reversible small molecule inhibitor of PARG.
Conditions
- Advanced or Metastatic Solid Tumors
- Breast Cancer
- Ovarian Cancer
- Prostate Cancer
- Epithelial Ovarian Cancer
- BRCA2 Mutation
- ER+ Breast Cancer
- Castrate Resistant Prostate Cancer
- BRCA1 Mutation
- BRCA Mutation
- Endometrial Cancer
- Colorectal Cancer
- Gastric Cancer
Interventions
- DRUG
-
ETX-19477
Oral medication taken daily
Sponsors & Collaborators
-
858 Therapeutics, Inc.
lead INDUSTRY
Principal Investigators
-
Daniel McCormick · 858 Therapeutics, Inc.
Study Design
- Allocation
- NON_RANDOMIZED
- Purpose
- TREATMENT
- Masking
- NONE
- Model
- SEQUENTIAL
Eligibility
- Min Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2024-05-13
- Primary Completion
- 2026-12-31
- Completion
- 2026-12-31
- FDA Drug
- Yes
Countries
- United States
Study Locations
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