Sacituzumab Govitecan in Primary HER2-negative Breast Cancer

Summary

Phase III, prospective, multi-center, randomized, open label, parallel group, study in patients with HER2-negative breast cancer with residual disease after neoadjuvant chemotherapy with 1:1 allocation to: * Arm A: Sacituzumab govitecan (days 1, 8 q3w for eight cycles); * Arm B: treatment of physician´s choice (TPC, defined as capecitabine or platinum-based chemotherapy for eight cycles or observation. Treatment in either arm will be given for eight cycles. In patients with HR-positive breast cancer, endocrine-based therapy, which includes the use of CDK4/6 inhibitors, will be administered according to local guidelines. The start of endocrine therapy will be at the discretion of the investigator; however, it will be encouraged to start after surgery/radiotherapy in patients without additional cytotoxic agents. Adjuvant pembrolizumab can be given until the completion of radiotherapy before randomization. Within the study the use of pembrolizumab in patients with TNBC who received pembrolizumab as neoadjuvant therapy is allowed as monotherapy in the TPC arm, according to the approval of pembrolizumab in this setting.

Timeline

Start

2020-10-28

Primary completion

2027-03-30

Completion

2029-03-30

Publications

• Results Marmé F, Hanusch C, Furlanetto J, et al. Safety interim analysis (SIA) of the phase III postneoadjuvant SASCIA study evaluating sacituzumab govitecan (SG) in patients with primary HER2-negative breast cancer (BC) at high relapse risk after neoadjuvant treatment. ESMO Breast 2022; 58O, proffered paper presentation. https://doi.org/10.1016/j.annonc.2022.03.075

Drugs

Indications