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Pharmacokinetics of Serelaxin in Patients with Severe Renal Impairment or End-Stage Renal Disease Requiring Hemodialysis: A Single-dose, Open-label, Parallel-group Study

Dahlke, Marion, Halabi, Atef, Canadi Semadeni, Jasna, Tsubouchi, Chiaki, Machineni, Surendra Kumar and Pang, Yinuo (3276) Pharmacokinetics of Serelaxin in Patients with Severe Renal Impairment or End-Stage Renal Disease Requiring Hemodialysis: A Single-dose, Open-label, Parallel-group Study. Journal of clinical pharmacology, 56 (4). pp. 474-483. ISSN 00912700

Abstract

Serelaxin, a recombinant human relaxin-2, is currently in clinical development for treating acute heart failure. This open-label parallel-group study investigated serelaxin pharmacokinetics (PK) after a single 4-h intravenous infusion (10μg/kg) in patients with severe renal impairment (n=6) or end-stage renal disease (ESRD) requiring hemodialysis (with PK on the day of dialysis [n=6] or during dialysis-free interval [n=6]) compared with healthy subjects (n=18). In all participants, serum serelaxin concentration peaked at the end of infusion and subsequently declined with a mean terminal elimination half-life of 6.5–8.8h. Compared to healthy subjects, a moderate decrease in serelaxin systemic clearance (37%–52%) and increase in its exposure (30%–115%) were observed in all patients. During the 4-h hemodialysis in ESRD patients, serelaxin was partially removed (30%) from blood with dialysis clearance constituting approximately 52% of total systemic clearance. Anti-serelaxin antibodies were not detected in any participant, and serelaxin was well tolerated with no deaths, serious adverse events (AE), or AE-related discontinuations. The observed serelaxin PK differences in patients with severe renal impairment compared with matched healthy subjects are unlikely to pose a safety risk and do not warrant a predefined dosage adjustment in such patients.

Item Type: Article
Keywords: serelaxin, pharmacokinetics, renal impairment, end-stage renal disease
Date Deposited: 26 Apr 2016 23:45
Last Modified: 26 Apr 2016 23:45
URI: https://oak.novartis.com/id/eprint/26682

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