HSV-tk and XRT and Chemotherapy for Newly Diagnosed GBM

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorThe Methodist Hospital Research Institute

About this trial

Study to assess the safety and efficacy of HSV-tk (gene therapy), valacyclovir, radiotherapy and chemotherapy in newly diagnosed glioblastoma multiforme (GBM) or anaplastic astrocytoma (AA).

Eligibility criteria

Qualifiers

All patients must have frozen section biopsy proven anaplastic astrocytoma or glioblastoma multiforme without evidence of multifocal disease defined as multiple lesions greater than 2 cm separate from the primary treatment target, or brainstem involvement as well as radiographic evidence consistent with these diagnoses.

Life expectancy ≥ 12 weeks.

Patients should have the following characteristics: newly diagnosed anaplastic astrocytoma or glioblastoma demonstrated by frozen section biopsy, prior surgery which demonstrated anaplastic astrocytoma or glioblastoma multiforme which requires repeat surgery for residual tumor, but no radiation or chemotherapy has been received, ECOG performance status of 0-1. No evidence of other active malignancy (except squamous or basal cell skin cancers).

Patients with leptomeningeal disease may be considered for enrollment into the study.

Disqualifiers

Prior treatment with immunomodulatory therapy, immunotherapy, and/or gene vector therapy in the past 3 months.

Any cytotoxic chemotherapy, RT, or immunotherapy or any investigational drug within 3 weeks of study treatment start.

Evidence of substantial multifocal disease defined as multiple lesions greater than 2cm separate from the primary treatment target, or brainstem involvement. Discrete areas of contrast enhancement connected by abnormal T2 FLAIR signal on MRI scan are not considered multifocal disease, as this represents a single tumor.

Patients with brainstem involvement, in patients with leptomeningeal disease, no evidence of diffuse disease or spread to the spine.

Trial design

Treatments tested in this trial

  • ADV/HSV-tk (gene therapy)

Treatment groups

62 Participants
are divided into 1 treatment group