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EUropean Real-world Experience Of Previously Treated Advanced/Metastatic HER2-positive Breast Cancer Patients Accessing Trastuzumab Deruxtecan

Completed
Conditions
HER2-positive Breast Cancer
Interventions
Registration Number
NCT05458401
Lead Sponsor
Daiichi Sankyo
Brief Summary

A named patient program (NPP) was initiated to allow patients with an unmet medical need to access trastuzumab deruxtecan (T-DXd) treatment. To gain early insights on the use of T-DXd outside of a trial setting, patients with advanced/metastatic HER2+ breast cancer receiving treatment (or previously treated) with T-DXd through the NPP will be invited to participate.

Detailed Description

The antibody-drug conjugate T-DXd has been granted conditional approval in the European Union as a single agent for adult patients with unresectable or metastatic HER2+ breast cancer who have previously received ≥2 HER2-based regimens. This was based on data from the Phase II DESTINY-Breast01 trial (NCT03248492).

DS8201-0002-EAP-MA is a real world data (RWD) observational data collection inviting patients with advanced/metastatic HER2+ breast cancer receiving T-DXd through the NPP already to participate to help further understand the usage in a real world clinical setting.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
256
Inclusion Criteria
  • Participants for whom T-DXd treatment is indicated, according to the summary of product characteristics conditionally approved by the EMA, that are eligible for treatment with T-DXd through the NPP (i.e., those with advanced/metastatic HER2+ breast cancer who have received ≥ 2 prior anti-HER2-based regimens and have documentation of HER2 positive tumour status by a validated method) will be eligible for inclusion to this RWD collection, subject to providing written informed consent to participate.
Exclusion Criteria
  • Any participant who does not meet all inclusion criteria noted above.

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Arm && Interventions
GroupInterventionDescription
Trastuzumab Deruxtecan (T-DXd) CohortTrastuzumab deruxtecanPatients with advanced/metastatic HER2-positive breast cancer who are receiving treatment (or previously treated) with trastuzumab deruxtecan (T-DXd).
Primary Outcome Measures
NameTimeMethod
Real-World Time-to-Treatment Discontinuation In Participants Treated With Trastuzumab Deruxtecan (T-DXd)From the time from T-DXd initiation to the date of T-DXd discontinuation, up to 14 months

Real-world time-to-treatment discontinuation (rwTTD) is defined as the time from trastuzumab deruxtecan initiation to discontinuation for any reason in patients with advanced/metastatic HER2+ breast cancer in a real-world clinical setting.

Secondary Outcome Measures
NameTimeMethod
Type of Prior Targeted HER2-targeted Treatments In Participants Treated With Trastuzumab Deruxtecan (T-DXd)Prior to time of T-DXd initiation
Number of Participants Who Discontinued Trastuzumab Deruxtecan (T-DXd) In Participants Treated With T-DXdFrom the time from T-DXd initiation to the date of T-DXd discontinuation, up to 14 months
Number of Participants With Treatment-emergent Adverse Events In Participants Treated With Trastuzumab Deruxtecan (T-DXd)From the time from T-DXd initiation to the date of T-DXd discontinuation, up to 14 months
Number of Participants Who Received Prophylaxis Treatment In Participants Treated With Trastuzumab Deruxtecan (T-DXd)Prior to time of T-DXd initiation

Patients who received prophylaxis treatment for nausea and/or vomiting will be reported.

Real World Progression-free Survival In Participants Treated With Trastuzumab Deruxtecan (T-DXd)From the time of T-DXd initiation to the date of T-DXd discontinuation, withdrawal, or disease progression, up to 14 months

Real world progression-free survival (rwPFS) is defined as the time from T-DXd initiation to the earliest of death or progression.

Trial Locations

Locations (21)

St. Vincent's Private Hospital

🇮🇪

Dublin, Ireland

St. Vincent's University Hospital

🇮🇪

Dublin, Ireland

Breast Center Humanitas Cancer Center IRCCS Istituto Clinico Humanitas

🇮🇹

Rozzano, Milano, Italy

Centro di riferimento Oncologico (CRO), National Cancer Institute

🇮🇹

Aviano, Pordenone, Italy

National Cancer Instutute 'Fondazione Pascale

🇮🇹

Naples, Italy

Institute Oncology Veneto

🇮🇹

Padua, Italy

Universita Campus Bio-Medico Di Roma

🇮🇹

Rome, Italy

Policlinico Umberto I Di Roma

🇮🇹

Rome, Italy

Fondazione Policlinico Univeritario Agostino Gemeli

🇮🇹

Rome, Italy

Hospital General Universitario De Alicante

🇪🇸

Alicante, Spain

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St. Vincent's Private Hospital
🇮🇪Dublin, Ireland
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