ABCSG 65 / DEFINTIVE Overview


Diagnostic HER2DX-guided treatment For patIeNts wIth early-stage HER2-posiTIVE breast cancer

An international, multicenter, prospective, two-arm, randomized, open-label Phase III study designed to demonstrate that personalized treatment decisions in HER2-positive early-stage breast cancer using the HER2DX® diagnostic test improve quality of life without compromising outcomes and survival rates.

Study Start: (global): 11/2024,  FPI 11/2024
(national): 07/2025
Coordinating Investigator AT: Rupert Bartsch, Vienna
Participants: 315 (global), 70 (national)
Study Design:
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Study Design:


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