Title
A phase I study of volasertib combined with afatinib, in advanced solid tumors
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Berlin ,
Subject
Pharmacology. Therapy
Human medicine
Source (journal)
Cancer chemotherapy and pharmacology. - Berlin
Volume/pages
76(2015) :4 , p. 843-851
ISSN
0344-5704
ISI
000361494600020
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
To determine the maximum tolerated dose (MTD) of volasertib, a Polo-like kinase inhibitor, combined with afatinib, an oral irreversible ErbB family blocker, in patients with advanced solid tumors (NCT01206816; Study 1230.20). Patients with advanced non-resectable and/or metastatic disease following failure of conventional treatment received intravenous volasertib 150-300 mg on day 1 every 21 days, combined with oral afatinib 30-40 mg on days 2-21 of a 3-week cycle (Schedule A), or 50-90 mg on days 2-6 of a 3-week cycle (Schedule B). The primary objective was to determine the MTD of volasertib in combination with afatinib. Fifty-seven patients (Schedule A, N = 29; Schedule B, N = 28) were treated. The MTDs were volasertib 300 mg plus afatinib 30 mg days 2-21 and 70 mg days 2-6 of a 3-week cycle for Schedules A and B, respectively. The most common Grade 3/4 adverse events were neutropenia (31.0 %), diarrhea (13.8 %), and thrombocytopenia (10.3 %) in Schedule A; neutropenia (39.3 %), thrombocytopenia (35.7 %), hypokalemia (14.3 %), febrile neutropenia, and nausea (each 10.7 %) in Schedule B. The best overall response was two partial responses (6.9 %; both in Schedule A); eight patients in each schedule achieved stable disease. Volasertib showed multi-exponential pharmacokinetic (PK) behavior; co-administration of volasertib and afatinib had no significant effects on the PK profile of either drug. Volasertib combined with afatinib had manageable adverse effects and limited antitumor activity in this heavily pretreated population.
E-info
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