A Phase II Open Label Study of the Pre- and Postoperative Use of ZD1839 (Iressa) in Recurrent Glioblastoma, Including Translational Research
Glioblastoma (GBM) patients who relapse and are in good performance status, without serious
neurological deficits are offered secondary surgery and participation in the trial. Eligible
patients must have had standard treatment including primary surgery, radiation therapy and
at least a first line chemotherapy. Patients on cytochrome P450 isoenzyme CYP3A4-inducing
antiepileptic drugs (EIAE) are excluded due to ensuing interactions of these drugs with
gefitinib metabolism, reducing systemic availability. After giving written informed consent,
patients receive gefitinib 500 mg daily starting at least 5 days prior to re-operation,
allowing a steady state condition.Treatment continues until tumor progression or occurrence
of intolerable side effects.The specimens collected at surgery will undergo translational
research, aiming to correlate drug accumulation and molecular signatures of GBM samples with
clinical outcome.
Interventional
Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
molecular signature of EGFR responsiveness to ZD1839
Silvia Hofer, MD
Principal Investigator
University Hospital, Zürich
Switzerland: Swissmedic
1839IL/0526
NCT00250887
July 2005
May 2007
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