Clinical Research Directory

Genetically Modified Neural Stem Cells, Flucytosine, and Leucovorin for Treating Patients With Recurrent High-Grade Gliomas

This phase I trial studies the side effects and determines the best dose of genetically modified neural stem cells and flucytosine when given together with leucovorin for treating patients with recurrent high-grade gliomas. Neural stem cells can travel to sites of tumor in the brain. The neural stem cells that are being used in this study were genetically modified express the enzyme cytosine deaminase (CD), which converts the prodrug flucytosine (5-FC) into the chemotherapy agent 5-fluorouracil (5-FU). Leucovorin may help 5-FU kill more tumor cells. The CD-expressing neural stem cells are administered directly into the brain. After giving the neural stem cells a few days to spread out and migrate to tumor cells, research participants take a 7 day course of oral 5-FC. (Depending on when a research participant enters the study, they may also be given leucovorin to take with the 5-FC.) When the 5-FC crosses into brain, the neural stem cells convert it into 5-FU, which diffuses out of the neural stem cells to preferentially kill rapidly dividing tumor cells while minimizing toxicity to healthy tissues. A Rickham catheter, placed at the time of surgery, will be used to administer additional doses of NSCs every two weeks, followed each time by a 7 day course of oral 5-FC (and possibly leucovorin). This neural stem cell-based anti-cancer strategy may be an effective treatment for high-grade gliomas. Funding Source - FDA OOPD

A Study of RNA-lipid Particle (RNA-LP) Vaccines for Newly Diagnosed Pediatric High-Grade Gliomas (pHGG) and Adult Glioblastoma (GBM)

The primary objective will be to demonstrate the manufacturing feasibility and safety, and to determine the maximum tolerated dose (MTD) of RNA-LP vaccines in (Stratum 1) adult patients with newly diagnosed GBM (MGMT low level or unmethylated in adults only) and (Stratum 2) in pediatric patients with newly diagnosed HGG (pHGG). Funding Source - FDA OOPD

TORC1/2 Inhibitor MLN0128 and Bevacizumab in Treating Patients With Recurrent Glioblastoma or Advanced Solid Tumors

This phase I trial studies the side effects and best dose of raptor/rictor-mammalian target of rapamycin (mTOR) (TORC1/2) inhibitor MLN0128 when given in combination with bevacizumab in treating patients with glioblastoma, a type of brain tumor, or a solid tumor that has spread and not responded to standard treatment. TORC1/2 inhibitor MLN0128 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as bevacizumab, may interfere with the ability of tumor cells to grow and spread. Bevacizumab may also stop the progression of tumors by blocking the growth of new blood vessels necessary for tumor growth.

Vorinostat and Temozolomide in Treating Patients With Malignant Gliomas

This phase I trial is studying the side effects and best dose of vorinostat when given together with temozolomide in treating patients with malignant gliomas. Drugs used in chemotherapy, such as vorinostat and temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Vorinostat may also stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Vorinostat may help temozolomide work better by making tumor cells more sensitive to the drug. Giving vorinostat together with temozolomide may kill more tumor cells.

Advanced MR Imaging as Predictor of Treatment Response in Newly Diagnosed Glioblastomas

This clinical trial studies advanced MR imaging techniques in measuring early response of standard treatment may become predictors of long-term treatment response in patients with newly diagnosed glioblastomas.