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Clinical Trial Active — Not Recruiting Phase III NCT04784715

Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer (DESTINY-Breast09)

Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer (DESTINY-Breast09) — Active Not Recruiting • Phase III • Oncology •…

📅 30 Jul 2026 ⏱ 1 min read
Active — Not Recruiting
Check the registry for current status and eligibility criteria.
Status
Active — Not Recruiting
Phase
Phase III
NCT ID
NCT04784715
Start
2021-04-26
Completion
2026-11-11
ClinicaliQ Trial Snapshot
  • Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer (DESTINY-Breast09) — Active Not Recruiting • Phase III • Oncology • NCT04784715.
  • New antibody-drug conjugate T-DXd, with or without pertuzumab, compared to standard chemotherapy for HER2-positive advanced breast cancer.

Verify eligibility, endpoints and current status on the original ClinicalTrials.gov registry before acting on this summary.

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What This Trial Is Studying

The study will evaluate the efficacy and safety of trastuzumab deruxtecan (also known as T-DXd, DS-8201a), either alone or in combination with pertuzumab, in treating patients with Human epidermal growth factor receptor 2 (HER2)-positive breast cancer as a first line of treatment in the metastatic setting. Conditions: Breast Cancer; HER2-positive; Metastatic Interventions: Trastuzumab deruxtecan, Placebo, Taxane, Pertuzumab, Trastuzumab Lead Sponsor: AstraZeneca Planned Enrollment: 1157 participants

Full Trial Details
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Eligibility criteria, protocol, and results when available
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Related Clinical Intelligence

Guidelines, Drug Science, safety briefs and education connected to this trial area.

Guideline
Trastuzumab deruxtecan for treating HER2-low metastatic or unresectable breast cancer after chemotherapy
Oncology · 07 Oct 2026
Trastuzumab deruxtecan is recommended by NICE as a treatment option for HER2-low metastatic or unresectable breast cancer, making it suitable for patients…
View guideline →
Guideline
Trastuzumab deruxtecan for treating HER2-positive unresectable or metastatic breast cancer after 1 or more lines of anti-HER2 treatment
Oncology · 20 Oct 2026
Trastuzumab deruxtecan is recommended as an option for HER2-positive unresectable or metastatic breast cancer only after 1 or more prior lines of…
View guideline →
Clinical Brief
New hope for breast cancer patients as life-extending drug now on NHS in England
Oncology · BBC Health · 16 Sep 2026
Enhertu is now available on the NHS in England, extending median overall survival by approximately seven months in eligible breast cancer patients…
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Guideline
Durvalumab with platinum-based chemotherapy, then with or without olaparib, for untreated advanced or recurrent endometrial cancer
Oncology · 09 Sep 2026
Durvalumab combined with platinum-based chemotherapy is the recommended first-line treatment for untreated advanced or recurrent endometrial cancer, with olaparib addition considered based…
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Clinical Brief
Cancer patient told she will get drug which could make her life longer
Oncology · BBC Health · 17 Sep 2026
Sacituzumab govitecan is now available on the NHS for patients with incurable (metastatic triple-negative) breast cancer, following a revised cost-effectiveness assessment after…
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‘My cancer spread while I waited months for surgery’: The cost of England’s cancer wait times
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England's cancer surgery waiting times have deteriorated despite government initiatives aimed at improving them, with patients experiencing significant delays that may allow…
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