A Study of Trastuzumab Deruxtecan (T-DXd) Versus Trastuzumab Emtansine (T-DM1) in High-risk HER2-positive Participants With Residual Invasive Breast Cancer Following Neoadjuvant Therapy (DESTINY-Breast05)

Running, not enrolling · Phase 3

Conditions studied: HER2-Positive Primary Breast Cancer, Residual Invasive Breast Cancer

In brief

Patients with HER2-positive primary breast cancer (BC) who do not achieve complete response after appropriate neoadjuvant therapy are at higher risk of disease recurrence. More effective treatment options are needed for this patient population. This study will examine the efficacy and safety of trastuzumab deruxtecan (T-DXd) compared with trastuzumab emtansine (T-DM1) in high-risk patients with residual invasive breast cancer following neoadjuvant therapy.

Key facts

Study ID
NCT04622319
Run by
Daiichi Sankyo
People needed
1600
Starts
2020-12-04
Expected to finish
2028-06-20
Last updated by the study team
2026-05-15

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

Where it is running

Full record on ClinicalTrials.gov

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