CI

At a glance

ClinicalIndex Comparison Record
Phase 2Active· 66 enrolled
Drug / intervention
Tucatinib +2 moredrug
Likely dose
Tucatinib 300 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04721977
NCT04721977Phase 2Active

A Phase 2 Open-label, Single Arm Study of MK-7119 in Combination With Trastuzumab and Capecitabine in Participants With Previously Treated Locally Advanced Unresectable or Metastatic HER2+ Breast Carcinoma

Pfizer·interventional·Posted Jan 25, 2021·Updated Jan 9, 2026

In Brief

A Phase 2 clinical trial evaluating Tucatinib, Trastuzumab, and 1 other intervention for Breast Cancer. Active but no longer recruiting, targeting 66 participants across 28 sites in 3 countries.

Detailed Summary

The goal of this study is to evaluate the efficacy and safety of tucatinib in combination with trastuzumab and capecitabine in participants with unresectable locally advanced or metastatic HER2+ breast cancer who have had prior treatment with taxane anti-cancer agent, trastuzumab, pertuzumab and trastuzumab emtansine (T-DM1). The primary hypothesis is that the confirmed objective response rate (cORR) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) as determined by independent central review (ICR) for the combination of tucatinib, trastuzumab and capecitabine, is greater than 20%.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsBreast Cancer
CountriesJapan, South Korea, Taiwan
Collaborators--

Timeline

Phase 2ActiveOverdue
202120222023202420252026
First PostedJan 25, 2021
Enrollment StartApr 8, 2021
Primary CompletionJul 17, 2023
Study CompletionJun 30, 2026
TodayJul 2, 2026
Enrollment to primary: 2.3 yearsPosted 5.4 years ago

Interventions

Tucatinibdrug

Tucatinib 300 mg administered BID via oral tablet

Trastuzumabbiological

Trastuzumab 8 mg/kg loading dose followed by 6 mg/kg maintenance dose, administered via IV infusion

Capecitabinedrug

Capecitabine 1000 mg/m\^2 administered BID via oral tablet