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Study identifier: NCT05327010 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Testing the Combination of the Anti-cancer Drugs ZEN003694 (ZEN-3694) and Talazoparib in Patients With Advanced Solid Tumors, The ComBET Trial

Condition: Advanced Malignant Solid Neoplasm · Metastatic Malignant Solid Neoplasm · Unresectable Malignant Solid Neoplasm  ·  Sponsor: National Cancer Institute (NCI)

PhasePhase 2
Planned participants88
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This phase II trial tests whether ZEN003694 (ZEN-3694) in combination with talazoparib works to shrink tumors in patients with solid tumors that are unlikely to be cured or controlled with treatment and that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced). Another aim of this study is to find out if, and how, patients' genes influence their response to this specific drug combination. For this part of the study, investigators will run tests using samples of patients' tumor tissue and blood that will be collected during the study. ZEN-3694 is an inhibitor of a family of proteins called the bromodomain and extra-terminal (BET). It may prevent the growth of tumor cells that overproduce BET protein. Talazoparib is an inhibitor of PARP, an enzyme that helps repair deoxyribonucleic acid (DNA) when it becomes damaged. Blocking PARP may help keep cancer cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy. Genes are pieces of the DNA code that individuals inherit from their parents. Some genes work to protect against cancer by correcting damage that can occur in the DNA when cells divide. BRCA1 and BRCA2 are two examples of these types of genes, and they are called tumor-suppressor genes. For example, if a person has a mutation in a BRCA1/2 gene they have a greatly increased risk of developing breast and ovarian cancer because their cells may no longer be able to c…

This description comes directly from the study's public registry record.

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Locations (36)

City of Hope Comprehensive Cancer CenterDuarte, California, United StatesRecruiting
City of Hope at Irvine LennarIrvine, California, United StatesRecruiting
UC San Diego Moores Cancer CenterLa Jolla, California, United StatesRecruiting
Keck Medicine of USC KoreatownLos Angeles, California, United StatesActive Not Recruiting
Los Angeles General Medical CenterLos Angeles, California, United StatesActive Not Recruiting
USC / Norris Comprehensive Cancer CenterLos Angeles, California, United StatesActive Not Recruiting
USC Norris Oncology/Hematology-Newport BeachNewport Beach, California, United StatesActive Not Recruiting
University of California Davis Comprehensive Cancer CenterSacramento, California, United StatesActive Not Recruiting
UC San Diego Medical Center - HillcrestSan Diego, California, United StatesRecruiting
UCHealth University of Colorado HospitalAurora, Colorado, United StatesActive Not Recruiting
Yale UniversityNew Haven, Connecticut, United StatesActive Not Recruiting
Smilow Cancer Hospital Care Center-TrumbullTrumbull, Connecticut, United StatesActive Not Recruiting

+ 24 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05327010