Active clinical trials for "Astrocytoma"

This study will determine the efficacy of the small molecule CDK4/6 inhibitor PD 0332991 (as measured by progression free survival at 6 months) in patients with recurrent glioblastoma multiforme or gliosarcoma who are Rb positive. A total of 30 patients will be treated; 15 will undergo a planned surgical resection and receive drug for 7 days prior to surgery, followed by drug after recovery from surgery, and the other 15 patients will receive drug without a planned surgical procedure.

This is an open-label, multicenter, phase II trial, assessing the antitumor activity, and safety of temozolomide in combination with O6-BG in patients with temozolomide-resistant anaplastic glioma.

RATIONALE: Current therapies for adult recurrent/progressive low grade astrocytoma provide limited benefit to the patient. The anti-cancer properties of Antineoplaston therapy suggest that it may prove beneficial in the treatment of adult recurrent/progressive low grade astrocytoma. PURPOSE: This study is being performed to determine the effects (good and bad) that Antineoplaston therapy has on adults with a recurrent/progressive low grade astrocytoma.

This is a prospective, non-randomized, observational registry study evaluating a patient-specific ex vivo 3D (EV3D) assay for drug response using a patient's own biopsy or resected tumor tissue for assessing tissue response to therapy in patients with advanced cancers, including ovarian cancer, high-grade gliomas, and high-grade rare tumors.

This study will find the maximum safe dose (MSD) or maximum tolerated dose (MTD) of CYNK-001 which are NK cells derived from human placental CD34+ cells and culture-expanded. CYNK-001 cells will be given after lymphodepleting chemotherapy for the systemic cohort (IV) (intravenous). The intratumoral cohort (IT) will not be giving lymphodepletion. The safety of this treatment will be evaluated, and researchers want to learn if NK cells will help in treating recurrent glioblastoma multiforme.

The early clinical development paradigm for chemotherapeutic agents has significantly influenced the development of therapeutic cancer vaccines. However, there are major differences between these two classes of therapeutics that have important implications for early clinical development. Specifically, the phase 1 concept of dose escalation to find a maximum-tolerated dose does not apply to most therapeutic cancer vaccines. Most therapeutic cancer vaccines are associated with minimal toxicity at a range that is feasible to manufacture or administer, and there is little reason to believe that the maximum-tolerated dose is the most effective dose. In a recent article from the biostatistics literature, Simon et al. write that "the initial clinical trial of many new vaccines will not be a toxicity or dose-ranging trial but rather will involve administration of a fixed dose of vaccine … in most cases the dose selected will be based on preclinical findings or practical considerations. Using several dose levels in the initial study to find the minimal active dose or to characterize the dose-activity relationship is generally not realistic". Consistent with these recommendations, the general philosophy of the phase 1 clinical trial is to facilitate a prompt preliminary evaluation of the safety and immunogenicity of the personalized synthetic long peptide vaccine strategy. The proposed clinical trial will test a fixed dose of vaccine. There is considerable experience with the synthetic long peptide vaccine platform. The synthetic long peptide vaccine platform has an excellent safety profile, and the optimal dose appears to be based on practical considerations (solubility of the peptide). The dose to be tested in the proposed clinical trial is consistent with other similar cancer vaccine trials that have been recently completed or are currently ongoing. The sample size (n=10) will provide a reasonably reliable estimate of the safety and immunogenicity of the vaccine.

This study will evaluate the safety and tolerability of increasing doses of PF-06840003 in patients with malignant gliomas.

In this study subjects will be administered a single oral dose of Aminolevulinic Acid (ALA) prior to surgical resection of their brain tumor. The ALA ultimately causes brain tumor tissue to fluoresce or light up under ultraviolet light. During surgery an ultraviolet light in the microscope chain will be turned on. The tumor tissue will fluoresce bright pink allowing the surgeon to more easily differentiate tumor tissue from normal brain tissue. The aim of the study is to determine whether ALA and fluorescent visualization of tumor tissue improves the surgeon's ability to completely resect or remove the brain tumor.

This phase I/II clinical trial is studying the side effects and best dose of gamma-secretase inhibitor RO4929097 and to see how well it works in treating young patients with relapsed or refractory solid tumors, CNS tumors, lymphoma, or T-cell leukemia. Gamma-secretase inhibitor RO4929097 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.

This phase I trial is studying the side effects and best dose of aminolevulinic acid during surgery in treating patients with malignant brain tumors. Aminolevulinic acid becomes active when it is exposed to a certain kind of light and may help doctors find and remove tumor cells during surgery