PMID- 24485296 OWN - NLM STAT- MEDLINE DCOM- 20141118 LR - 20220317 IS - 1938-0666 (Electronic) IS - 1526-8209 (Linking) VI - 14 IP - 2 DP - 2014 Apr TI - Efficacy and safety of balugrastim compared with pegfilgrastim in patients with breast cancer receiving chemotherapy. PG - 101-8 LID - S1526-8209(13)00238-3 [pii] LID - 10.1016/j.clbc.2013.10.001 [doi] AB - BACKGROUND: Recombinant granulocyte colony-stimulating factors (G-CSFs) reduce the incidence and duration of chemotherapy-induced neutropenia and febrile neutropenia when given as adjunct therapy to patients receiving myelosuppressive chemotherapy. Balugrastim is a long-acting G-CSF composed of a genetic fusion between recombinant human serum albumin and G-CSF. We compared the efficacy and safety of balugrastim and pegfilgrastim, a long-acting pegylated recombinant G-CSF, in patients with breast cancer who were scheduled to receive chemotherapy. PATIENTS AND METHODS: In this double-blind randomized phase III trial, patients with >/= 1.5 x 10(9) neutrophils/L were randomly assigned to subcutaneous injections of balugrastim 40 mg (n = 153) or pegfilgrastim 6 mg (n = 151). The primary efficacy end point was the duration of severe neutropenia (DSN) (days with an absolute neutrophil count [ANC] < 0.5 x 10(9) cells/L) during cycle 1. Efficacy analyses were performed in the per-protocol (PP) population. In a separate open-label single-arm study, newly recruited patients (n = 77) received balugrastim 40 mg and were included in the safety analysis. RESULTS: The mean DSN in cycle 1 was 1.1 days in the balugrastim group and 1.0 days in the pegfilgrastim group (95% confidence interval [CI], -0.13-0.37). Two and 4 patients, respectively, had febrile neutropenia during cycle 1. Twenty percent of patients in the balugrastim group and 19% in the pegfilgrastim group had adverse events (AEs) considered to be related to study medication; 3.9% and 4.7% of patients, respectively, experienced serious AEs. CONCLUSIONS: This study demonstrates the comparable safety and efficacy profile of balugrastim and pegfilgrastim and the noninferiority of balugrastim for reduction in DSN. There were no unexpected safety events. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Volovat, Constantin AU - Volovat C AD - Centrul de Oncologie Medicala, Iasi, Romania. FAU - Gladkov, Oleg A AU - Gladkov OA AD - Chelyabinsk Regional Clinical Oncology Center, Chelyabinsk, Russia. FAU - Bondarenko, Igor M AU - Bondarenko IM AD - Dnipropetrovsk State Medical Academy, Dnipropetrovsk, Ukraine. FAU - Barash, Steve AU - Barash S AD - Teva Biopharmaceuticals, Inc, Rockville, MD. FAU - Buchner, Anton AU - Buchner A AD - Teva ratiopharm, Ulm, Germany. FAU - Bias, Peter AU - Bias P AD - Teva ratiopharm, Ulm, Germany. FAU - Adar, Liat AU - Adar L AD - Teva Pharmaceuticals, Inc, Netanya, Israel. FAU - Avisar, Noa AU - Avisar N AD - Teva Pharmaceuticals, Inc, Netanya, Israel. Electronic address: noa.avisar@teva.co.il. LA - eng SI - ClinicalTrials.gov/NCT01126190 PT - Clinical Trial, Phase III PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20131025 PL - United States TA - Clin Breast Cancer JT - Clinical breast cancer JID - 100898731 RN - 0 (Recombinant Fusion Proteins) RN - 0 (Recombinant Proteins) RN - 0 (Serum Albumin) RN - 143011-72-7 (Granulocyte Colony-Stimulating Factor) RN - 3A58010674 (pegfilgrastim) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - PVI5M0M1GW (Filgrastim) RN - T6K4P3HIU8 (balugrastim) RN - ZIF514RVZR (Serum Albumin, Human) SB - IM MH - Breast Neoplasms/*drug therapy/secondary MH - Double-Blind Method MH - Female MH - Filgrastim MH - Follow-Up Studies MH - Granulocyte Colony-Stimulating Factor/*therapeutic use MH - Humans MH - Middle Aged MH - Neoplasm Metastasis MH - Neoplasm Staging MH - Polyethylene Glycols/*chemistry MH - Recombinant Fusion Proteins/*therapeutic use MH - Recombinant Proteins/therapeutic use MH - Safety MH - Serum Albumin/*chemistry/therapeutic use MH - Serum Albumin, Human MH - Treatment Outcome OTO - NOTNLM OT - Balugrastim OT - Breast cancer OT - Neutropenia OT - Pegfilgrastim OT - Recombinant granulocyte colony-stimulating factor EDAT- 2014/02/04 06:00 MHDA- 2014/11/19 06:00 CRDT- 2014/02/04 06:00 PHST- 2013/04/11 00:00 [received] PHST- 2013/10/11 00:00 [accepted] PHST- 2014/02/04 06:00 [entrez] PHST- 2014/02/04 06:00 [pubmed] PHST- 2014/11/19 06:00 [medline] AID - S1526-8209(13)00238-3 [pii] AID - 10.1016/j.clbc.2013.10.001 [doi] PST - ppublish SO - Clin Breast Cancer. 2014 Apr;14(2):101-8. doi: 10.1016/j.clbc.2013.10.001. Epub 2013 Oct 25.