Pharmacokinetic and pharmacodynamic properties of a new long-acting granulocyte colony-stimulating factor (HM10460A) in healthy volunteers

Kwang Hee Shin, Tae Eun Kim, Kyoung Soo Lim, Seo Hyun Yoon, Joo Youn Cho, Sei Eun Kim, Kyung Mi Park, Sang Goo Shin, In Jin Jang, Kyung Sang Yu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Background: HM10460A is a newly developed recombinant human granulocyte colony-stimulating factor with long-lasting characteristics. This factor is expected to be used for chemotherapy-related neutropenic conditions. Objective: The aim of the present study was to evaluate the pharmacokinetics and pharmacodynamics of HM10460A following subcutaneous administration to healthy Korean subjects. Methods: A randomized, double-blind, placebo-controlled, escalating single-dose study was conducted in 40 healthy Korean subjects. The subjects were allocated to single-dose groups of 5, 15, 45, 135 or 350 μg/kg, or placebo. Serial blood samples for pharmacokinetic/pharmacodynamic analyses were collected up to 22 days, and urine samples for pharmacokinetic analysis were collected up to 3 days after subcutaneous administration of HM10460A. The serum and urine concentrations were analyzed by enzyme-linked immunosorbent assay. Results: Most of the serum concentrations in the 5 and 15 μg/kg dosing groups were below the lower limit of quantification (LLOQ). The median times to the peak concentration (Tmax) of HM10460A in the 45, 135, and 350 μg/kg dosing groups were 8.0, 14.0, and 24.0 h, respectively. The mean ± standard deviation values of the dose-normalized maximum concentration (Cmax) and dose-normalized area under the concentration-time curve (AUClast) for the 45, 135, and 350 μg/kg dosing groups were 14.13 ± 6.37, 66.19 ± 38.71, and 34.65 ± 19.69 μg/L/mg, respectively, and 265.0 ± 124.1, 2144 ± 1232, and 1386 ± 701.2 μg h/L/mg, respectively. The concentrations of HM10460A in the urine were below the LLOQ in all of the subjects. In all of the dosing groups, the area under the effect-time curve (AUEClast) of both the absolute neutrophil count (ANC) and the CD34+ cell count increased as the dose increased. Conclusion: HM10460A showed dose-dependent pharmacokinetic characteristics, and the systemic exposure of HM10460A was positively correlated with the ANC and CD34+ cell counts.

Original languageEnglish
Pages (from-to)149-158
Number of pages10
JournalBioDrugs
Volume27
Issue number2
DOIs
StatePublished - Apr 2013

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