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Clinical Trial
. 2012 Jul 15;118(14):3599-606.
doi: 10.1002/cncr.26663. Epub 2011 Nov 15.

Phase 2 trial of irinotecan and thalidomide in adults with recurrent anaplastic glioma

Pierre Giglio  1 , Megha Dhamne, Kenneth R Hess, Mark R Gilbert, Morris D Groves, Victor A Levin, Sanghee L Kang, Sandra E Ictech, Vivien Liu, Howard Colman, Charles A Conrad, Monica Loghin, John de Groot, W K Alfred Yung, Vinay K Puduvalli
Affiliations
Free article
Clinical Trial

Phase 2 trial of irinotecan and thalidomide in adults with recurrent anaplastic glioma

Pierre Giglio et al. Cancer. .
Free article

Abstract

Background: Therapeutic options for patients with anaplastic gliomas (AGs) are limited despite better insights into glioma biology. The authors previously reported improved outcome in patients with recurrent glioblastoma treated with thalidomide and irinotecan compared with historical controls. Here, results of the AG arm of the study are reported, using this drug combination.

Methods: Adults with recurrent AG previously treated with radiation therapy, with Karnofsky performance score ≥70, adequate organ function and not on enzyme-inducing anticonvulsants were enrolled. Treatment was in 6-week cycles with irinotecan at 125 mg/m(2) weekly for 4 weeks followed by 2 weeks off, and thalidomide at 100 mg daily increased to 400 mg/day as tolerated. The primary endpoint was progression-free survival rate at 6 months (PFS-6), and the secondary endpoints were overall survival (OS) and response rate (RR).

Results: In 39 eligible patients, PFS-6 for the intent-to-treat population was 36% (95% confidence interval [CI] = 21%, 53%), median PFS was 13 weeks (95% CI = 6%, 28%) and RR was 10%(95% CI = 3%, 24%). Radiological findings included 2 complete and 2 partial responses and 17 stable disease. Median OS from study registration was 62 weeks, (95% CI = 51, 144). Treatment-related toxicities (grade 3 or higher) included neutropenia, diarrhea, nausea, and fatigue; 6 patients experienced venous thromboembolism. Four deaths were attributable to treatment-related toxicities: 1 from pulmonary embolism, 2 from colitis, and 1 from urosepsis.

Conclusions: The combination of thalidomide and irinotecan did not achieve sufficient efficacy to warrant further investigation against AG, although a subset of patients experienced prolonged PFS/OS. A trial of the more potent thalidomide analogue, lenalidomide, in combination with irinotecan against AG is currently ongoing.

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