A randomized, double-blind, placebo-controlled study to assess QTc interval prolongation of standard dose aflibercept in cancer patients treated with docetaxel

Pierre Maison-Blanche, Jan B Vermorken, Tuncay Goksel, Jean-Pascal Machiels, Sanjiv Agarwala, Sylvie Rottey, Gedske Daugaard, Constantin Volovat, Max Scheulen, Lisa Sengeløv, Dana Grecea, Alexandru Eniu, Elke Jäger, Eyal Meiri, Stefano Cascinu, Dirk Strumberg, Gokhan Demir, Michael Clemens, Graziella Pinotti, Mario NardiTroy Guthrie, Emmanuelle Boelle, Emmanuelle Magherini

3 Citationer (Scopus)

Abstract

The effect of repeated doses of aflibercept on ventricular repolarization in cancer patients was evaluated in an intensive electrocardiogram trial. This randomized, placebo-controlled, double-blind trial was conducted in 87 treated solid tumor patients. Treatment was with 6 mg/kg aflibercept, 1-hour intravenous (n = 43), or placebo (n = 44), combined with ≤75 mg/m2 docetaxel, every 3 weeks. Electrocardiograms were collected for 6 hours posttreatment using digital 12-lead Holter recorders, at day 1, in cycles 1 and 3. Free and vascular endothelial growth factor-bound aflibercept concentrations were assessed at similar time points. Eighty-four patients (43 placebo and 41 aflibercept) were evaluable for QT interval, Fridericia correction (QTcF) at cycle 1 and 59 (31 placebo and 28 aflibercept) at cycle 3. During cycle 3, from 30 minutes to 6 hours after the start of aflibercept, the maximum observed upper limit of the QTcF 90% confidence interval was 16 ms, for a mean of 8.4 ms. QTcF prolongation above 480 ms and 60 ms above baseline was observed in 1 aflibercept patient (2%). The slope of the relationship between free aflibercept concentration and QTcF was 0.048 (95% confidence interval, 0.013-0.082), corresponding to a 5-ms increase per 100 μg/mL increase in concentration. These results exclude a clinically important effect of aflibercept on ventricular repolarization.

OriginalsprogEngelsk
TidsskriftJournal of Cardiovascular Pharmacology
Vol/bind61
Udgave nummer6
Sider (fra-til)495-504
Antal sider10
ISSN0160-2446
DOI
StatusUdgivet - jun. 2013

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