Substantially Improving the Cure Rate of High-risk BRCA1-like Breast Cancer (Subito)
Breast Cancer
About this trial
This is an interventional treatment trial for Breast Cancer focused on measuring Stage III, HER2 negative, homologous recombination deficiency (HRD)
Eligibility Criteria
Inclusion Criteria:
- Women and men with stage III adenocarcinoma of the breast harboring signs of a breast cancer with features of homologous recombination deficiency (HRD)
- Age of 18-65 years
- The tumor must be HER2-negative
- Treatment must start within 8 weeks after the last surgical resection
- Eastern Cooperative Oncology Group (ECOG) performance status 0-1
Exclusion Criteria:
- Previous radiation therapy
- Previous chemotherapy
- Any previous treatment with a PARP-inhibitor, including olaparib
- Pre-existing neuropathy from any cause in excess of Grade 1
- Chronic concomitant use of known strong or moderate CYP3A inducers
Sites / Locations
- Institut Paoli CalmettesRecruiting
- Hopital Tenon, University Marie-Curie
- Medical spectrum TwenteRecruiting
- Antoni van LeeuwenhoekRecruiting
- AZVURecruiting
- University Medical Center GroningenRecruiting
- LUMCRecruiting
- Maastricht University Medical CenterRecruiting
- Radboud UMCRecruiting
- Erasmus Medical Center Cancer InstituteRecruiting
- University Medical Center UtrechtRecruiting
Arms of the Study
Arm 1
Arm 2
Active Comparator
Active Comparator
ddAC-CP-Olaparib
ddAC-mini CTC
ddAC; doxorubicin 60 mg/m² as an i.v. bolus and cyclophosphamide 600 mg/m² as an i.v. bolus on day 1 every 2 weeks ddAC must be supported with prophylactic pegfilgrastim 6 mg s.c. given 24-48 hours after completion of administration of EVERY chemotherapy cycle CP; carboplatin/paclitaxel (CP) consisting of carboplatin (AUC 6) on day 1 and paclitaxel (80 mg/m2) on day 1,8 and 15 of a 21 days cycle. In total 4 courses of CP will be administered. Olaparib will be administered in Dutch centers only, as monotherapy for one year at a dose of 300 mg BID, starting 3 weeks after adjuvant radiotherapy, or, if radiotherapy is not indicated, 3-5 weeks after the last CP cycle. Patients without a (near) pCR will receive adjuvant capecitabine at a starting dose of 1000-1250 mg/m2, twice a day, on days 1-14 every 3 weeks for eight cycles.
ddAC; doxorubicin 60 mg/m² as an i.v. bolus and cyclophosphamide 600 mg/m² as an i.v. bolus on day 1 every 2 weeks ddAC must be supported with prophylactic pegfilgrastim 6 mg s.c. given 24-48 hours after completion of administration of EVERY chemotherapy cycle intensified alkylating 'mini' CTC (2x) cyclophosphamide 3000 mg/m2 day 1 mesna 500 mg (push) + 2000 mg in 24 hours day 1 carboplatin (400 mg/m2; (or AUC=5 in patients with a calculated creatinine-clearance of <100 ml/min)) days 1,2 thiotepa 250 mg/m2 day 2 Patients without a (near) pCR will receive adjuvant capecitabine at a starting dose of 1000-1250 mg/m2, twice a day, on days 1-14 every 3 weeks for eight cycles.