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A randomized, double-blind, phase 3 study of tucatinib or placebo in combination with trastuzumab and pertuzumab as maintenance therapy for metastatic HER2+ breast cancer (HER2CLIMB-05)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-503826-37-00
Acronym
SGNTUC-028
Enrollment
249
Registered
2024-04-24
Start date
2022-02-11
Completion date
Unknown
Last updated
2026-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Unresectable locally-advanced or metastatic HER2+ breast cancer

Brief summary

PFS, defined as the time from randomization to investigator-assessed documented disease progression per RECIST v1.1, or death from any cause, whichever occurs first

Detailed description

OS, defined as the time from randomization to death from any cause, PFS, defined as the time from randomization to documented disease progression (as determined by BICR per RECIST v1.1), or death from any cause, whichever occurs first, Time to deterioration of HRQoL, defined as time to 10-point decrease in the global health status/QoL scale of the European Organization for Research and Treatment of Cancer (EORTC) quality-of-life questionnaire (QLQ-C30), - Central nervous system (CNS)-PFS, defined as the time from randomization to investigator-assessed disease progression in brain (RECIST v1.1), or death from any cause, whichever occurs first, Adverse events (AEs), Clinical laboratory assessments, Incidence of dose holding, dose reductions, and discontinuations of tucatinib, Incidence of dose holding and discontinuations of trastuzumab, Incidence of dose holding and discontinuations of Pertuzumab, Plasma concentrations of tucatinib

Interventions

Sponsors

Seagen Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
PFS, defined as the time from randomization to investigator-assessed documented disease progression per RECIST v1.1, or death from any cause, whichever occurs first

Secondary

MeasureTime frame
OS, defined as the time from randomization to death from any cause, PFS, defined as the time from randomization to documented disease progression (as determined by BICR per RECIST v1.1), or death from any cause, whichever occurs first, Time to deterioration of HRQoL, defined as time to 10-point decrease in the global health status/QoL scale of the European Organization for Research and Treatment of Cancer (EORTC) quality-of-life questionnaire (QLQ-C30), - Central nervous system (CNS)-PFS, defined as the time from randomization to investigator-assessed disease progression in brain (RECIST v1.1), or death from any cause, whichever occurs first, Adverse events (AEs), Clinical laboratory assessments, Incidence of dose holding, dose reductions, and discontinuations of tucatinib, Incidence of dose holding and discontinuations of trastuzumab, Incidence of dose holding and discontinuations of Pertuzumab, Plasma concentrations of tucatinib

Countries

Austria, Belgium, Czechia, Finland, France, Germany, Greece, Italy, Netherlands, Poland, Portugal, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026