OncRef

Clinical Trial: NCT03523585

DS-8201a in Pre-treated HER2 Breast Cancer That Cannot be Surgically Removed or Has Spread [DESTINY-Breast02]

Status:

COMPLETED

Phase:

Phase 3

Lead Sponsor:Daiichi Sankyo
Information Provided By:Daiichi Sankyo
Last Update Posted:2026-02-27

Study Overview

Brief Summary

This study will compare DS 8201a to standard treatment.

Participants must have HER2 breast cancer that has been treated before.

Their cancer:

  • cannot be removed by an operation
  • has spread to other parts of the body

Official Title

A Phase 3, Multicenter, Randomized, Open-label, Active-controlled Study of Trastuzumab Deruxtecan (DS-8201a), an Anti-HER2-antibody Drug Conjugate, Versus Treatment of Investigator's Choice for HER2-positive, Unresectable and/or Metastatic Breast Cancer Subjects Previously Treated With T-DM1

Conditions

Breast Cancer

Intervention / Treatment

  • Drug: Trastuzumab deruxtecan
  • Drug: Capecitabine
  • Drug: Lapatinib
  • Drug: Trastuzumab

Other Study ID Numbers

  • DS8201-A-U301
  • 2018-000221-31
  • 184017
  • DESTINY-Breast02
  • 2018

Start Date (Actual)

2018-08-01

Primary Completion Date (Actual)

2022-06-30

Study Completion Date (Actual)

2025-12-23

Enrollment (Actual)

608

Study Type

Interventional

Phase

Phase 3