- For patients who completed neoadjuvant chemotherapy, the regimen must contain an anthracycline, a taxane, or both. Patients who have received neoadjuvant therapy as part of a clinical trial are acceptable. Protocol therapy must be initiated < 180 days after last surgery for breast cancer. For triple negative patients who receive adjuvant chemotherapy only, the regimen must contain both an anthracycline and a taxane. For these patients, protocol therapy must be initiated < 28 weeks after initiation of adjuvant chemotherapy.