
Bevacizumab w / Temozolomide PET & Vascular MRI For GBM
Study Purpose
This research study is exploring how the blood vessels in the participant's tumor change from treatment with bevacizumab, and how these changes affect the way their tumor absorbs temozolomide (TMZ). The pilot part of this study is to evaluate the use of [11C] temozolomide PET (TMZ-PET) scans and MRI scans to tell investigators more about how standard treatment with bevacizumab affects the blood vessels in the participant's tumor, and how these changes affect the way the participant's tumor absorbs temozolomide. "Investigational" means that the role of TMZ-PET scans is still being studied and that research doctors are trying to find out more about it. Bevacizumab is approved by the U.S. Food and Drug Administration for use in people with the participant's type of cancer. It works by blocking signals on a specific protein called vascular endothelial growth hormone (VEGF), which plays a role in promoting the growth of spread of tumor blood vessels. Bevacizumab is an "anti-VEGF' agent because it is designed to slow the growth of the participant's cancer. Since anti-VEGF agents also affect normal blood vessels in the brain, they can inhibit the way other drugs used in combination with bevacizumab are delivered to the tumor. Researchers are looking for how bevacizumab affects delivery of chemotherapy, in this case temozolomide. In PET scans, a radioactive substance is injected into the body. The scanning machine finds the radioactive substance, which tends to go to cancer cells. For the PET scans in this research study, the investigators are using a radioactive substance called [11C] temozolomide, which is chemically identical to the prescription drug TMZ. TMZ is FDA approved as a chemotherapeutic agent in cancer but [11C] temozolomide is an investigational agent. In this research study, participants will receive standard treatment with bevacizumab and oral temozolomide as well as standard MRI scans. In addition, participants will undergo TMZ-PET scans before and after treatment with bevacizumab. The first TMZ-PET scan will occur 7-13 days after starting treatment with oral temozolomide but before beginning treatment with bevacizumab, day 1 after starting treatment with bevacizumab and 1 month after starting bevacizumab. TMZ-PET scans will be given at the same time as a vascular MRI, which will evaluate the changes in tumor blood flow, blood volume, and how receptive blood vessels are while also measuring how much TMZ is in the brain.
Recruitment Criteria
Accepts Healthy Volunteers
Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms |
No |
Study Type
An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies. |
Interventional |
Eligible Ages | 18 Years and Over |
Gender | All |
Trial Details
Trial ID:
This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries. |
NCT01987830 |
Phase
Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use. |
N/A |
Lead Sponsor
The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data. |
Massachusetts General Hospital |
Principal Investigator
The person who is responsible for the scientific and technical direction of the entire clinical study. |
Elizabeth Gerstner, MD |
Principal Investigator Affiliation | Massachusetts General Hospital |
Agency Class
Category of organization(s) involved as sponsor (and collaborator) supporting the trial. |
Other, NIH |
Overall Status | Completed |
Countries | United States |
Conditions
The disease, disorder, syndrome, illness, or injury that is being studied. |
Recurrent Glioblastoma |
Contact a Trial Team
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