Active clinical trials for "Glioblastoma"

Background Currently, no standard treatment exists for patients with recurrent glioblastoma multiforme (rGBM) and used 2nd line treatments have low (up to max. 20%) response rates and very modest response duration (months). The median overall survival for GBM patients is 12-14 months from the time of diagnosis; therefore the development of new therapeutic options is imperative. HU has been used to treat hematological diseases and solid tumors (such as melanoma, ovarian, squamous cell carcinoma, head and neck carcinoma and brain tumors) in combination with other anti-cancer agents, but never with TMZ. If found safe, HU+TMZ, is easily translated to the clinic. Purpose: Phase I trial to identify the maximum tolerated dose (MTD) for the combination of dose intense temozolomide (TMZ) and hydroxy-urea (HU) in (maximal) thirty patients with recurrent glioblastoma (rGBM). Plan of investigation: Month 0-24 (1st and 2nd year): Inclusion and follow-up of a maximum of 30 patients with rGBM Month 25-31 (3rd year): Follow-up of patients included in the trial, data analysis (determining MTD and explorative analysis) and manuscript preparation. Possible results: Obtaining MTD and safety profile of daily HU+TMZ in patients with rGBM; Preliminary data on the estimation of the median progression-free (PFS) and overall survival (OS), radiographic response proportion in patients with measurable disease, and exploratory correlation of treatment outcomes (PFS and OS) with o6-methylguanine-DNA-methyltransferase (MGMT) promoter methylation status in archival tumor specimens and further elucidation of underlying mechanism of re-sensitization of TMZ by HU. Exploratory analysis of biomarkers profile of platelets in patients treated with HU+TMZ.

A glioblastoma (GBM) is the most common malignant primary brain tumor, yet it is not easy to control. Recent studies show that survival improves for patients who get aggressive surgery to remove a tumor before starting radiation (RT) and chemotherapy (chemo) treatment. Surgery, RT and chemo are part of regular cancer care for GBM. RT is usually done in daily doses 5 days a week over about 6 weeks. Beams of radiation are aimed at the tumor site plus some of the normal brain tissue around the tumor area. GammaKnife® (GK) radiosurgery also delivers radiation but in a larger dose over one day. GK sends beams to a precise target (tumor location) and very little normal brain tissue that is nearby. This study will compare GK treatment to the usual RT treatment after surgery, and with chemo. We want to know: How well each treatment keeps the tumor from growing back. What the effects (good and bad) of the treatments are. How you rate your quality of life. How the treatment affects your ability to think, understand, reason, and remember. How you rate your ability to think, understand, reason, and remember. If using a certain type of MRI scan can show the difference between new tumor growth and changes caused by treatment. If certain features found in tumor cells can help doctors predict how tumors will respond to treatment.

The purpose of the study is to determine the safety and efficacy of intracranially implanted Carmustine in the treatment of patients with primary malignant glioma.

The aim of this study is to evaluate the efficacy and safety of intensive dose temozolomide treatment alone in parallel to a combination with thalidomide in patients with recurrent glioblastoma after standard therapy. In the treatment arm A of the study it will be investigated whether or not continuous dosing of temozolomide may overcome alkylator resistance in patients with glioblastoma who progress on the 5/28 day dosing regimen. For treatment arm B it is postulated that the combination of thalidomide and temozolomide is effective with respect to time to progression and progression-free survival due to the fact that temozolomide and thalidomide have different mechanisms of action.

The purpose of this study is to evaluate the safety and biologically active dose of TM-601 in adult patients with recurrent malignant glioma.

This is an open-label, dose finding, multiple-dose study in subjects with recurring/relapsing glioblastoma multiforme. Three dose levels of MPC-6827 will be administered with carboplatin to three separate cohorts. Study endpoints will include determination of the maximum tolerated dose, dose limiting toxicities, and evaluation of evidence of anti-tumor activity of MPC-6827 when given with carboplatin.

Background: - The blood-brain barrier helps to protect the central nervous system (brain and spinal cord) from harmful toxins, but also prevents potentially useful chemotherapy from reaching brain tumors. The barrier is formed by tight connections between blood vessel cells and molecules found on the surface of brain blood vessels such as Permeability-glycoprotein (Pgp). Pgp may influence whether patients with brain tumors known as gliomas respond to chemotherapy and what side effects they may experience. The compound (11C)N-desmethyl-loperamide ((11C)dLop) reacts to Pgp molecules, and therefore may be used with positron emission tomography (PET) imaging to study the blood brain barrier. Objectives: - To study the ability of PET imaging with (11C)dLop to evaluate the blood brain barrier in brain tumor patients. Eligibility: - Individuals at least 18 years of age who have a brain tumor with characteristics that may be imaged with techniques such as magnetic resonance imaging (MRI) andPET. Design: Participants will be screened with a full physical examination and medical history, blood and urine tests, and tumor imaging studies (fluorodeoxyglucose PET and MRI scans with contrast agent). The (11C)dLop scan will take 1 hour to perform. Participants will be asked to return for blood and urine tests approximately 24 hours after the PET scan. Participants will have followup visits at least every 4 months by repeating a complete history and physical exam and brain MRI. Participants may have repeat scans with (11C)dLop at various points in the course of cancer treatment, but will not have these scans more than twice in a 12-month period. Participants will be followed for as long as possible during treatment to see if imaging with (11C)dLop correlates with response to the treatments.

Indication: Subjects with glioblastoma at first relapse after surgery, radiotherapy and first-line temozolomide (TMZ). Objectives: Phase I endpoint: - To determine the maximum tolerated dose (MTD) of CPT-11 administered on days 8 and 22 in combination with a fixed, continuous, and metronomic regimen of TMZ, given in 28-day cycles. Phase II endpoints: Primary endpoint: Progression-free survival at 6 months. Secondary endpoints: Response rate, toxicity profile, overall survival. Complementary studies: To assess the effect of treatment on plasma concentration of thrombospondin-1 (TSP1), soluble VEGF receptor 1 (sVEGF-1) and VEGF-A, and their correlation with clinical outcome. To assess the correlation between immunohistochemical expression of PTEN and MGMT proteins, and clinical outcomes.

Standard treatment for glioblastomas includes radiation and chemotherapy with a drug called temozolomide (Temodar); however, glioblastomas frequently develop resistance to standard treatment and recur or progress. Glioblastomas are known to have decreased levels of oxygen compared to normal tissues. There is evidence that these lower oxygen levels in glioblastomas may contribute to their ability to resist treatment effects of radiation and chemotherapy. In this study we will look to increase the oxygen concentration within the glioblastoma by adding hyperbaric treatments (the experimental part of this study) to standard treatment with radiation and temozolomide in order to see whether increasing the oxygen concentration within the tumor increases the tumor-killing ability of standard radiation and chemotherapy. In addition, the investigators are interested to evaluate the effect of this treatment protocol on a person's quality of life and level of stress, and, therefore, the investigators will ask subjects to complete several brief questionnaires while they are on-study.

RATIONALE: Erlotinib may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth. PURPOSE: Phase II trial to study the effectiveness of erlotinib in treating patients who have recurrent or progressive glioblastoma multiforme.