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|Ref Type||Journal Article|
|Authors||Rodler ET, Kurland BF, Griffin M, Gralow JR, Porter P, Yeh RF, Gadi VK, Guenthoer J, Beumer JH, Korde L, Strychor S, Kiesel BF, Linden HM, Thompson JA, Swisher E, Chai X, Shepherd S, Giranda V, Specht JM|
|Title||Phase I Study of Veliparib (ABT-888) Combined with Cisplatin and Vinorelbine in Advanced Triple-Negative Breast Cancer and/or BRCA Mutation-Associated Breast Cancer.|
|Journal||Clinical cancer research : an official journal of the American Association for Cancer Research|
|Date||2016 Jun 15|
|Abstract Text||Cisplatin is synergistic with vinorelbine and the PARP inhibitor veliparib, and has antineoplastic activity in triple-negative breast cancer (TNBC) and BRCA mutation-associated breast cancer. This phase I study assessed veliparib with cisplatin and vinorelbine.A 3+3 dose-escalation design evaluated veliparib administered twice daily for 14 days with cisplatin (75 mg/m(2) day 1) and vinorelbine (25 mg/m(2) days 1, 8) every 21 days, for 6 to 10 cycles, followed by veliparib monotherapy. Pharmacokinetics, measurement of poly(ADP-ribose) in peripheral blood mononuclear cells, and preliminary efficacy were assessed. IHC and gene-expression profiling were evaluated as potential predictors of response.Forty-five patients enrolled in nine dose cohorts plus five in an expansion cohort at the highest dose level and recommended phase II dose, 300 mg twice daily. The MTD of veliparib was not reached. Neutropenia (36%), anemia (30%), and thrombocytopenia (12%) were the most common grade 3/4 adverse events. Best overall response for 48 patients was radiologic response with 9-week confirmation for 17 (35%; 2 complete, 15 partial), and stable disease for 21 (44%). Germline BRCA mutation presence versus absence was associated with 6-month progression-free survival [PFS; 10 of 14 (71%) vs. 8 of 27 (30%), mid-P = 0.01]. Median PFS for all 50 patients was 5.5 months (95% confidence interval, 4.1-6.7).Veliparib at 300 mg twice daily combined with cisplatin and vinorelbine is well tolerated with encouraging response rates. A phase II randomized trial is planned to assess veliparib's contribution to cisplatin chemotherapy in metastatic TNBC and BRCA mutation-associated breast cancer. Clin Cancer Res; 22(12); 2855-64. ©2016 AACR.|
|Molecular Profile||Treatment Approach|
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|Unknown unknown||Her2-receptor negative breast cancer||not applicable||Cisplatin + Veliparib + Vinorelbine||Phase I||Actionable||In a Phase I trial, Veliparib (ABT-888) in combination with Platinol (cisplatin) and Navelbine (vinorelbine) resulted in a complete response in 4% (2/48), partial response in 31% (15/48), and stable disease in 44% (31/48) of patients with Erbb2 (Her2) negative breast cancer (PMID: 26801247).||26801247|