PMID- 28616768 OWN - NLM STAT- MEDLINE DCOM- 20180423 LR - 20220321 IS - 1573-7217 (Electronic) IS - 0167-6806 (Linking) VI - 165 IP - 2 DP - 2017 Sep TI - Antitumor activity and safety profile of weekly carboplatin plus paclitaxel in metastatic breast cancer: a ten-year, monocentric, retrospective study. PG - 365-373 LID - 10.1007/s10549-017-4336-z [doi] AB - BACKGROUND: Taxanes are a mainstay in the treatment of metastatic breast cancer (mBC). Combination chemotherapy, including platinum-taxens doublets, can improve tumor responses and progression-free survival (PFS), but is associated with more toxicities and an uncertain benefit in terms of overall survival (OS). METHODS: We performed a retrospective study on 274 consecutive patients with mBC treated at the Division of Medical Oncology of Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy, during the decade 2007-2016 with the combination of carboplatin AUC 2 plus paclitaxel 80 mg/m(2), both given on days 1 and 8 in every 21-day cycle. RESULTS: 264 patients were evaluable for treatment safety and activity. The objective response rate (ORR) was 44.7%. Median PFS and OS were 8.6 and 23.7 months, respectively. Triple-negative breast cancer (TNBC) patients had significantly lower PFS and OS times compared to other biology groups. At multivariable analysis, previous exposure to taxanes, HR-positive HER2-negative biology, a higher number of metastatic sites, and de novo metastatic disease at diagnosis were associated with reduced PFS, while receiving maintenance therapy correlated with improved PFS. Overall, the treatment was quite well tolerated, with 10.2% of patients discontinuing one or both drugs because of adverse events (AEs). G3-G4 neutropenia occurred in 16.8% of patients, while the incidence of febrile neutropenia was 2.3%. CONCLUSIONS: Weekly carboplatin-paclitaxel regimen is active and well tolerated in mBC treatment. Prospective studies should be conducted to compare its efficacy and tolerability with standard single-agent paclitaxel or docetaxel treatment schedules, as well as with more recent combination regimens. FAU - Vernieri, Claudio AU - Vernieri C AUID- ORCID: 0000-0003-1577-8176 AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. claudio.vernieri@istitutotumori.mi.it. AD - Fondazione Istituto FIRC di Oncologia Molecolare (IFOM), Via Adamello 16, Milan, Italy. claudio.vernieri@istitutotumori.mi.it. FAU - Milano, Monica AU - Milano M AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Mennitto, Alessia AU - Mennitto A AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Maggi, Claudia AU - Maggi C AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Ferrari, Benvenuto AU - Ferrari B AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Rinaldi, Lucia AU - Rinaldi L AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Mennitto, Roberta AU - Mennitto R AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Stefanetti, Claudia AU - Stefanetti C AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Re, Barbara AU - Re B AD - SC Pharmacy, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Mariani, Gabriella AU - Mariani G AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Bianchi, Giulia AU - Bianchi G AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - Capri, Giuseppe AU - Capri G AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. FAU - de Braud, Filippo AU - de Braud F AD - Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, 20133, Milan, Italy. AD - Universita' degli Studi di Milano, Milan, Italy. LA - eng PT - Journal Article DEP - 20170614 PL - Netherlands TA - Breast Cancer Res Treat JT - Breast cancer research and treatment JID - 8111104 RN - 0 (Biomarkers, Tumor) RN - BG3F62OND5 (Carboplatin) RN - P88XT4IS4D (Paclitaxel) SB - IM MH - Adult MH - Aged MH - Antineoplastic Combined Chemotherapy Protocols/adverse effects/*therapeutic use MH - Biomarkers, Tumor MH - Breast Neoplasms/*drug therapy/mortality/*pathology MH - Carboplatin/administration & dosage MH - Disease Progression MH - Drug Administration Schedule MH - Female MH - Humans MH - Kaplan-Meier Estimate MH - Middle Aged MH - Neoplasm Metastasis MH - Neoplasm Staging MH - Paclitaxel/administration & dosage MH - Prognosis MH - Proportional Hazards Models MH - Retrospective Studies MH - Treatment Outcome OTO - NOTNLM OT - Combination chemotherapy OT - HER2-positive breast cancer OT - Hormone receptor-positive breast cancer OT - Metastatic breast cancer OT - Triple-negative breast cancer OT - Weekly carboplatin-paclitaxel EDAT- 2017/06/16 06:00 MHDA- 2018/04/24 06:00 CRDT- 2017/06/16 06:00 PHST- 2017/06/05 00:00 [received] PHST- 2017/06/08 00:00 [accepted] PHST- 2017/06/16 06:00 [pubmed] PHST- 2018/04/24 06:00 [medline] PHST- 2017/06/16 06:00 [entrez] AID - 10.1007/s10549-017-4336-z [pii] AID - 10.1007/s10549-017-4336-z [doi] PST - ppublish SO - Breast Cancer Res Treat. 2017 Sep;165(2):365-373. doi: 10.1007/s10549-017-4336-z. Epub 2017 Jun 14.