A Randomized Phase III Post-Operative Trial of Platinum Based Chemotherapy vs. Capecitabine in Patients With Residual Triple-Negative Basal-Like Breast Cancer Following Neoadjuvant Chemotherapy


To compare the invasive disease-free survival (IDFS) in triple-negative breast cancer (TNBC) patients with residual basal-like disease after neoadjuvant chemotherapy who are randomized to post-preoperative platinum based chemotherapy with those who are randomized to capecitabine.

Study Arms

  • ARM A (closed to accrual 05/16/2016): Patients undergo observation.
  • ARM B: Patients receive cisplatin intravenously (IV) or carboplatin IV on day 1. Treatment repeats every 3 weeks for 4 courses in the absence of disease progression or unacceptable toxicity.
  • ARM C: Patients receive capecitabine orally (PO) twice daily (BID) on days 1-14. Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up for up to 10 years.


Female and male patients must have histologically confirmed invasive breast cancer that meets the following criteria:

  • Clinical stage II-III (American Joint Committee on Cancer [AJCC] 7th edition) at diagnosis, based on initial evaluation by clinical examination and/or breast imaging; no metastatic disease allowed
  • Patients must have completed neoadjuvant taxane +/- anthracycline; patients must NOT have received cisplatin or carboplatin or capecitabine as part of their neoadjuvant therapy regimen
  • Must have completed definitive resection of primary tumor