Brain And Central Nervous System Tumors

Background: Glioblastoma is a common brain cancer in adults. Treatment includes surgery, radiation, and chemotherapy. But this cancer can return after treatment and is often fatal. Researchers want to know if a study drug (LMP744) can kill glioblastoma tumor cells. Objective: To test LMP744 in people with glioblastoma. Eligibility: People aged 18 years or older with glioblastoma that returned after treatment. Design: Participants will be screened. They will have a surgery to remove a small sample of tumor tissue (biopsy) from the brain. This will be done under protocol 03-N-0164. They will stay in the clinic for 1 night. They will also have imaging scans and tests of their heart function. Participants will have a central line installed: A flexible tube will be inserted into a vein in the chest. It will be attached to a port under the skin. This port will be used to draw blood and give medicines without having to insert new needles into a vein. LMP744 will be given through the central line for 5 days in a row. Participants will remain in the clinic for this time. Participants will then have a second surgery to remove as much of their tumor as possible. They will remain in the clinic until they recover from the surgery. Then they will recover at home after surgery. Participants will return to the clinic to receive the study drug for 5 days in a row through the central line, once a month for up to 12 months. Blood tests, heart function tests, and periodic imaging scans will be repeated during these visits. Participants will continue to have telehealth visits every 3 months after they stop taking the drug.

Background: Glioblastoma is a common brain cancer in adults. Treatment includes surgery, radiation, and chemotherapy. But this cancer can return after treatment and is often fatal. Researchers want to know if a study drug (LMP744) can kill glioblastoma tumor cells. Objective: To test LMP744 in people with glioblastoma. Eligibility: People aged 18 years or older with glioblastoma that returned after treatment. Design: Participants will be screened. They will have a surgery to remove a small sample of tumor tissue (biopsy) from the brain. This will be done under protocol 03-N-0164. They will stay in the clinic for 1 night. They will also have imaging scans and tests of their heart function. Participants will have a central line installed: A flexible tube will be inserted into a vein in the chest. It will be attached to a port under the skin. This port will be used to draw blood and give medicines without having to insert new needles into a vein. LMP744 will be given through the central line for 5 days in a row. Participants will remain in the clinic for this time. Participants will then have a second surgery to remove as much of their tumor as possible. They will remain in the clinic until they recover from the surgery. Then they will recover at home after surgery. Participants will return to the clinic to receive the study drug for 5 days in a row through the central line, once a month for up to 12 months. Blood tests, heart function tests, and periodic imaging scans will be repeated during these visits. Participants will continue to have telehealth visits every 3 months after they stop taking the drug.

RATIONALE: Diagnostic procedures, such as 3'-deoxy-3'-\[18F\] fluorothymidine (FLT) PET imaging, may help find and diagnose cancer. It may also help doctors predict a patient's response to treatment and help plan the best treatment. PURPOSE: This phase I trial is studying FLT PET imaging in patients with cancer.

MT027 is an off-the-shelf, allogeneic chimeric antigen receptor T cell (UCAR-T) injection prepared from healthy donor T cells targeting B7-H3. It is a next-generation, ready-to-use CAR-T product that can be used immediately and promptly for patients to solve the problem of unmet medical needs for a large number of patients who have a demand for CAR-T therapy but cannot receive it due to the common reasons of long production cycle, insufficient production capacity, and incompatibility of patients' T cells with the production conditions. In addition, the expected medical cost of allogeneic CAR-T cells is significantly lower, which can greatly alleviate the economic burden on patients. MT027 is prepared by expressing a chimeric antigen receptor (CAR) targeting B7H3 on gene-edited T cells through gene modification technology. MT027 products targeting the B7H3 target developed by Moxing Biotech avoid the potential graft-versus-host disease (GvHD) and host anti-graft reaction (HvGR) caused by the interaction between exogenous T cells and the patient's immune system, and have shown good safety and efficacy in recurrent high-grade glioma in the initial phase.