Reference Detail

Ref Type Journal Article
PMID (22679111)
Authors Burris HA 3rd, Dowlati A, Moss RA, Infante JR, Jones SF, Spigel DR, Levinson KT, Lindquist D, Gainer SD, Dar MM, Suttle AB, Ball HA, Tan AR
Title Phase I study of pazopanib in combination with paclitaxel and carboplatin given every 21 days in patients with advanced solid tumors.
Journal Molecular cancer therapeutics
Vol 11
Issue 8
Date 2012 Aug
URL
Abstract Text Several phase III trials have shown that the addition of an antiangiogenic agent to conventional chemotherapy can improve clinical benefit in patients with advanced solid tumors. This study examined the feasibility of combining pazopanib (Votrient), an oral antiangiogenic agent, with paclitaxel and carboplatin. This 3 + 3 dose-escalation phase I study evaluated the maximum-tolerated regimen (MTR) of daily pazopanib in combination with paclitaxel 175 mg/m(2) and carboplatin [dosed at area under the curve (AUC) 5 or 6] given every 21 days in patients with advanced solid tumors. Plasma samples were collected to evaluate the effect of pazopanib on the pharmacokinetics of paclitaxel and carboplatin. Thirty-four patients were enrolled. The MTR was paclitaxel 175 mg/m(2) and carboplatin AUC5 with pazopanib 200 mg. The most common dose-limiting toxicities were neutropenia and thrombocytopenia. Two patients with esophageal cancer had a complete response and four patients, one each with breast, small-cell lung, pancreatic, and gastroesophageal junction cancer, had partial responses. Pazopanib at 200 mg increased paclitaxel maximal concentration (C(max)) by 43% and carboplatin (AUC5 or AUC6) C(max) by 54%. Paclitaxel and carboplatin given every 21 days at standard doses was not feasible in combination with the monotherapy pazopanib dose of 800 mg daily because of dose-limiting myelosuppression. Coadministration of pazopanib increased exposure to paclitaxel and carboplatin and likely contributed to this effect. Given the antitumor activity of this regimen, further studies are underway to determine a clinically tolerable schedule of pazopanib with paclitaxel and carboplatin.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Therapy Description
Drug Name Trade Name Synonyms Drug Classes Drug Description
Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
Unknown unknown Advanced Solid Tumor not applicable Pazopanib Phase I Actionable In a Phase I study, Votrient (pazopanib) in combination with Taxol (paclitaxel) and Paraplatin (carboplatin) demonstrated efficacy in solid tumors (PMID: 22679111). 22679111
Unknown unknown Advanced Solid Tumor not applicable Carboplatin + Paclitaxel + Pazopanib Phase I Actionable In a Phase I study, Votrient (pazopanib) in combination with Taxol (paclitaxel) and Paraplatin (carboplatin) demonstrated efficacy in solid tumors (PMID: 22679111). 22679111