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Trastuzumab Deruxtecan (T-DXd) in Patients Who Have Hormone Receptor-negative and Hormone Receptor-positive HER2-low or HER2 IHC 0 Metastatic Breast Cancer

NCT05950945 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 250

Last updated 2026-04-08

No results posted yet for this study

Summary

This study will evaluate the safety and efficacy of trastuzumab deruxtecan (T-DXd) in participants with human epidermal growth factor receptor 2 (HER2)-low or HER2 immunohistochemistry (IHC) 0 (who are both hormone receptor \[HR\]-negative and HR-positive) unresectable and/or metastatic breast cancer.

Conditions

Interventions

DRUG

Trastuzumab Deruxtecan

Intravenous administration, 5.4 mg/kg on Day 1 of each 21-day cycle until radiographic disease progression as assessed by the investigator, unacceptable toxicity, other discontinuation criteria are met, or 2 years after first dose of study drug

Sponsors & Collaborators

Principal Investigators

  • Global Clinical Leader · Daiichi Sankyo

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-12-30
Primary Completion
2027-10-01
Completion
2027-10-01
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Belgium
  • Brazil
  • China
  • Ireland
  • Italy
  • Netherlands
  • Portugal
  • Spain

Study Locations

More Related Trials

Entities

Drugs
Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05950945 on ClinicalTrials.gov