Abstract
Granulocyte colony-stimulating factors (G-CSF), are available for prevention of neutropenia and reduction of its complications in cytostatic chemotherapy. The purpose of this analysis was to determine the consumption rates for various G-CSF and to compare outpatient medication costs per patient and treatment cycle. Prescription data of statutory health insurance members in Germany (IMS®LRx database) with G-CSF prescriptions between January 2008 and July 2010 were evaluated. A period of observation of at least 6 months prior to and after the G-CSF prescription was required. Prescription data of 8,726 patients treated with original filgrastim, 4,240 with biosimilar filgrastim, 6,456 with lenograstim, and 9,939 with pegfilgrastim were analyzed. The regression model showed statistically significant costreducing effects per cycle for treatment with lenograstim compared with non-lenograstim (-0.47 vs. original filgrastim; -0.15 vs. biosimilar filgrastim; -1.04 vs. pegfilgrastim; each p < 0.0001). This result has been adjusted for patient age, gender, number of injections, and prescribing specialist group. Treatment with the original preparation lenograstim is significantly cheaper compared to the other two original drugs and biosimilar. The costs of G-CSF treatment with the original preparation lenograstim and the filgrastim biosimilars are in a similar range, but with a significantly lower cost for lenograstim. Compared to their reference product the biosimilars thus show a cost advantage.
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More From: Int. Journal of Clinical Pharmacology and Therapeutics
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