PMID- 25877937 OWN - NLM STAT- MEDLINE DCOM- 20160125 LR - 20220409 IS - 2296-5262 (Electronic) IS - 2296-5270 (Linking) VI - 38 IP - 4 DP - 2015 TI - Prevention and treatment of chemotherapy-induced neutropenia with the biosimilar filgrastim: a non-interventional observational study of clinical practice patterns. PG - 146-52 LID - 10.1159/000381318 [doi] AB - BACKGROUND: Biosimilars are similar but non-identical versions of existing biological drugs. The HEXAFIL study was an observational study that assessed the clinical usage, safety and efficacy of the biosimilar filgrastim in routine clinical practice in Germany. PATIENTS AND METHODS: A total of 1,337 cancer patients received the biosimilar filgrastim for primary prophylaxis (PP), secondary prophylaxis (SP) or interventional treatment (TX) plus chemotherapy. Data including neutropenic complications and adverse events (AEs) were documented for up to 3 consecutive cycles. RESULTS: In cycle 1, 44.9% of the patients received the biosimilar filgrastim as PP, 31.0% as SP, and 23.6% as TX. Approximately 90% of the patients required no modifications to their chemotherapy regimen, with lower rates among the PP/SP versus the TX patients. Neutropenic complications occurred in 7.9%, 6.9%, and 3.9% of the patients (cycles 1, 2, and 3, respectively). Only 1.8% of the patients experienced febrile neutropenia during cycle 1. Earlier and longer filgrastim treatment reduced grade 3/4 leukopenia and neutropenic complications. The observed safety/tolerability profile was as expected; the most common AE (4.3%) was musculoskeletal back/bone pain. CONCLUSION: In this observational real-life study of clinical practice, the biosimilar filgrastim was effective and well tolerated, with results consistent with those reported in phase II and phase III trials. (c) 2015 S. Karger GmbH, Freiburg. FAU - Tesch, Hans AU - Tesch H AD - Bethanien Hospital, Frankfurt/M., Germany. FAU - Ulshofer, Thomas AU - Ulshofer T FAU - Vehling-Kaiser, Ursula AU - Vehling-Kaiser U FAU - Ottillinger, Bertram AU - Ottillinger B FAU - Bulenda, Dietmar AU - Bulenda D FAU - Turner, Matthew AU - Turner M LA - eng PT - Journal Article PT - Multicenter Study PT - Observational Study DEP - 20150331 PL - Switzerland TA - Oncol Res Treat JT - Oncology research and treatment JID - 101627692 RN - 0 (Antineoplastic Agents) RN - 0 (Biosimilar Pharmaceuticals) RN - 0 (Hematologic Agents) RN - PVI5M0M1GW (Filgrastim) SB - IM MH - Adult MH - Aged MH - Antineoplastic Agents/*adverse effects/therapeutic use MH - Biosimilar Pharmaceuticals/adverse effects/*therapeutic use MH - Drug Therapy, Combination MH - Female MH - Filgrastim/adverse effects/*therapeutic use MH - Germany MH - Hematologic Agents/adverse effects/*therapeutic use MH - Humans MH - Leukopenia/chemically induced/prevention & control MH - Male MH - Middle Aged MH - Neoplasms/*drug therapy MH - Neutropenia/*chemically induced/*drug therapy/prevention & control MH - Practice Patterns, Physicians' MH - Prospective Studies MH - Recurrence EDAT- 2015/04/17 06:00 MHDA- 2016/01/26 06:00 CRDT- 2015/04/17 06:00 PHST- 2014/09/09 00:00 [received] PHST- 2015/02/02 00:00 [accepted] PHST- 2015/04/17 06:00 [entrez] PHST- 2015/04/17 06:00 [pubmed] PHST- 2016/01/26 06:00 [medline] AID - 000381318 [pii] AID - 10.1159/000381318 [doi] PST - ppublish SO - Oncol Res Treat. 2015;38(4):146-52. doi: 10.1159/000381318. Epub 2015 Mar 31.