Stopped: The study was stopped due to unacceptable toxicity during the dose-escalation portion (Phase 1) of the study and did not progress to Phase 2
This is a First-in-Human (FIH), 2-part, Phase 1/2, open-label, multicenter study design to evaluate the safety, tolerability, PK, pharmacodynamics, PGx, and efficacy of TAS0728. This study consists of Phase 1 and Phase 2 components in subjects with advanced solid tumors with HER2 or HER3 overexpression, amplification, or mutation who have progressed despite standard therapy or for which no standard therapy exists, particularly urothelial cancer, biliary tract cancer, metastatic breast cancer, non-small cell lung cancer and colorectal cancer.
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Number of patients experiencing Dose Limiting Toxicity graded according to CTCAE Version 4.03, observed in the Cycle 1 in order to meet the objective of assessment of the MTD of TAS0728.
Timeframe: 21-day cycles
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] (Phase 1 and 2)
Timeframe: Safety monitoring will begin at the informed consent obtained and continue up to 30 days after the last dose of TAS0728 or until new antitumor therapy, whichever is earlier.
Objective Response Rate using Response Evaluation Criteria in Solid Tumors 1.1 (RECIST) (Phase2)
Timeframe: 3 years