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Active, not recruiting Phase 3 Interventional Results available

Study of Trastuzumab Deruxtecan (T-DXd) vs Investigator's Choice Chemotherapy in HER2-low, Hormone Receptor Positive, Metastatic Breast Cancer

ClinicalTrials.gov ID: NCT04494425

Public ClinicalTrials.gov record NCT04494425. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 28, 2026, 10:20 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Randomized, Multi-center, Open-label Study of Trastuzumab Deruxtecan (T-DXd) Versus Investigator's Choice Chemotherapy in HER2-Low, Hormone Receptor Positive Breast Cancer Patients Whose Disease Has Progressed on Endocrine Therapy in the Metastatic Setting (DESTINY-Breast06)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study will evaluate the efficacy, safety and tolerability of trastuzumab deruxtecan compared with investigator's choice chemotherapy in human epidermal growth factor receptor (HER)2-low, hormone receptor (HR) positive breast cancer patients whose disease has progressed on endocrine therapy in the metastatic setting.

Study identification

NCT ID
NCT04494425
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
AstraZeneca
Industry
Enrollment
866 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 105 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 24, 2020 (Actual)
Primary completion
Mar 18, 2024 (Actual)
Completion
Jun 19, 2026 (Estimated)
Last update posted
Mar 4, 2026

2020 – 2026

United States locations

U.S. sites
27
U.S. states
22
U.S. cities
26
Facility City State ZIP Site status
Research Site Scottsdale Arizona 85259 —
Research Site Springdale Arkansas 72762 —
Research Site Duarte California 91010 —
Research Site Los Angeles California 90017 —
Research Site Aurora Colorado 80045 —
Research Site Lakewood Colorado 80228 —
Research Site Washington D.C. District of Columbia 20016 —
Research Site Jacksonville Florida 32224 —
Research Site Kansas City Kansas 66160 —
Research Site Louisville Kentucky 40202 —
Research Site Bethesda Maryland 20817 —
Research Site Boston Massachusetts 02114 —
Research Site Detroit Michigan 48202 —
Research Site Rochester Minnesota 55905 —
Research Site St Louis Missouri 63110 —
Research Site Summit New Jersey 07901 —
Research Site Westbury New York 11590 —
Research Site Columbus Ohio 43210 —
Research Site Pittsburgh Pennsylvania 15212 —
Research Site Nashville Tennessee 37232 —
Research Site Austin Texas 78731 —
Research Site Dallas Texas 75246 —
Research Site Houston Texas 77030 —
Research Site Houston Texas 77090 —
Research Site Norfolk Virginia 23502 —
Research Site Seattle Washington 98104 —
Research Site Madison Wisconsin 53792-5666 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 266 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04494425, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 4, 2026 · Synced Oct 28, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04494425 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →