Substantially Improving the Cure Rate of High-risk BRCA1-like Breast Cancer (Subito)
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ClinicalTrials.gov Identifier: NCT02810743 |
Recruitment Status :
Recruiting
First Posted : June 23, 2016
Last Update Posted : March 23, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Breast Cancer | Drug: ddAC-CP-Olaparib Drug: ddAC-mini CTC | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 174 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Substantially Improving the Cure Rate of High-risk BRCA1-like Breast Cancer Patients With Personalized Therapy (SUBITO) - an International Randomized Phase III Trial |
Actual Study Start Date : | January 25, 2017 |
Estimated Primary Completion Date : | December 2023 |
Estimated Study Completion Date : | December 2029 |

Arm | Intervention/treatment |
---|---|
Active Comparator: ddAC-CP-Olaparib
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. |
Drug: ddAC-CP-Olaparib
ddAC-CP-Olaparib |
Active Comparator: 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 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. |
Drug: ddAC-mini CTC
ddAC - mini CTC |
- Overall survival [ Time Frame: assessed up to 120 months ]time from randomization to death from any cause.
- Recurrence free interval [ Time Frame: assessed up to 120 months ]time from randomization to local recurrence, second primary, distant recurrence or death, whichever comes first
- Incidence of toxicity, graded according to National Cancer Institute Common Toxicity Criteria (NCI-CTC) version 4.03 [ Time Frame: up to 30 days after end of treatment ]Incidence of toxicity, graded according to National Cancer Institute Common Toxicity Criteria (NCI-CTC) version 4.03
- cost-effectiveness measured by costs per quality-adjusted life years (QALYs) [ Time Frame: assessed up to 120 months ]cost-effectiveness measured by costs per quality-adjusted life years (QALYs)
- Patient reported outcomes [ Time Frame: assessed up to 24 months ]Patient reported outcomes; including quality of life (QoL) determined by a comprehensive panel of QoL questionnaires
- cost-effectiveness measured by incremental cost-effectiveness ratio (ICER) [ Time Frame: assessed up to 120 months ]cost-effectiveness measured by incremental cost-effectiveness ratio (ICER)

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
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

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02810743
Contact: Sabine Linn, Prof. MD | +3120512 ext 9111 | s.linn@nki.nl | |
Contact: Vincent de Jong, MD | +3120512 ext 9111 | subito@nki.nl |
France | |
Institut Paoli Calmettes | Recruiting |
Marseille, France, 13009 | |
Contact: A Goncalves, MD | |
Principal Investigator: A Goncalves | |
Hopital Tenon, University Marie-Curie | Not yet recruiting |
Paris, France | |
Contact: J-P Lotz, MD | |
Principal Investigator: J-P Lotz, MD | |
Netherlands | |
Medical spectrum Twente | Recruiting |
Enschede, Overijssel, Netherlands, 7500 KA | |
Contact: M Wymenga, MD | |
Principal Investigator: M Wymenga, MD | |
Antoni van Leeuwenhoek | Recruiting |
Amsterdam, Netherlands, 1066 CX | |
Contact: Sabine C Linn, MD +3120512 ext 2951 s.linn@nki.nl | |
Contact: Vincent de Jong, MD subito@nki.nl | |
Principal Investigator: Sabine C Linn, MD | |
AZVU | Recruiting |
Amsterdam, Netherlands, 1081 HV | |
Contact: I Konings, MD i.konings@vumc.nl | |
Principal Investigator: I Konings, MD | |
University Medical Center Groningen | Recruiting |
Groningen, Netherlands | |
Contact: C Schroder, MD | |
Principal Investigator: C Schroder, MD | |
LUMC | Recruiting |
Leiden, Netherlands, 2333 ZA | |
Contact: J R Kroep, MD j.r.kroep@lumc.nl | |
Principal Investigator: J R Kroep, MD | |
Maastricht University Medical Center | Recruiting |
Maastricht, Netherlands | |
Contact: V Tjan-Heijnen, MD | |
Principal Investigator: V Tjan-Heijnen, MD | |
Radboud UMC | Recruiting |
NIjmegen, Netherlands, 6225GA | |
Contact: E Kuip, MD | |
Principal Investigator: E Kuip, MD | |
Erasmus Medical Center Cancer Institute | Recruiting |
Rotterdam, Netherlands, 3015CE | |
Contact: A Jager, MD | |
Principal Investigator: A Jager, MD | |
University Medical Center Utrecht | Recruiting |
Utrecht, Netherlands, 3584CX | |
Contact: E van der Wall, MD | |
Principal Investigator: E van der Wall, MD |
Principal Investigator: | Sabine Linn, Prof. MD | NKI-AvL |
Responsible Party: | The Netherlands Cancer Institute |
ClinicalTrials.gov Identifier: | NCT02810743 |
Other Study ID Numbers: |
M16BRC |
First Posted: | June 23, 2016 Key Record Dates |
Last Update Posted: | March 23, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Stage III HER2 negative homologous recombination deficiency (HRD) |
Breast Neoplasms Neoplasms by Site Neoplasms Breast Diseases Skin Diseases |
Olaparib Poly(ADP-ribose) Polymerase Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Antineoplastic Agents |