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Clinical trialNCT04512261WithdrawnPhase 1/PHASE2Interventional

TOPAZ: Tucatinib in COmbination With Pembrolizumab And TrastuZumab in Patients With HER2-Positive Breast Cancer Brain Metastases

SponsorReva BashoEnrollment0Brain MetastasesBreast CancerCNS DiseaseHER2-positive Breast Cancer
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This is a single arm, open label trial to assess the safety and efficacy of tucatinib in combination with pembrolizumab and trastuzumab for the treatment of HER2+ breast cancer brain metastases (BCBM). A total of 33 patients with untreated or previously treated and progressing HER2+ BCBM not requiring urgent central nervous system (CNS)-directed therapy will be enrolled. The study will determine the recommended dose of tucatinib in this combination and assess the efficacy of this combination in controlling CNS disease in patients with HER2+ BCBM.
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • Cedars-Sinai Medical Center

    Los Angeles, California, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Pembrolizumab →Trastuzumab →Tucatinib →
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
1 Jun 2022
Primary completion
1 Jun 2024
Completion
1 Jun 2024
Last update posted
1 Jul 2022
Registered enrollment
0
Registry id
NCT04512261
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.