View clinical trials related to Neoplasms.
Filter by:Ionizing radiation produces cancer cell death by creating high levels of reactive oxygen species (ROS), such as superoxide and hydrogen peroxide, in irradiated cells. Cancer cells are preferentially affected by ROS. The investigators, therefore, propose that interfering with the detoxification of ROS will make radiation more toxic to cancer cells. Several cellular mechanisms exist to detoxify ROS, and glucose metabolism plays an important role in many of these mechanisms. The investigators propose that interfering with glucose metabolism will sensitize cancer cells to radiation. The investigators' central hypothesis is that 2DG will sensitize cancer cells to ionizing radiation by inhibiting the use of glucose to detoxify reactive oxygen species produced by radiation. As an initial step to evaluate this hypothesis, the investigators have designed this phase I study.
The aim of the study is to investigate the feasibility of in vivo single volume MR spectroscopy in evaluation of treatment response in patients with brain metastases, using 3T MR instrument. In order to optimize and avoid ineffective treatment of patients with brain metastases, in vivo MR spectroscopy can be an useful tool.
This study is being done to see if education about medicines directed toward children will improve their knowledge. The investigators also want to know if this knowledge lasts over time. Right now there are few medication instructional cards that are appropriate for children. Most of the medication cards provide information for adults. Some studies have shown that by teaching children directly, the children may take medicine at the right time for the right reason, have fewer side effects and know more about their medicine. The purpose of this research study is to see if education about medication helps children learn more about their medicine and if this knowledge lasts.
The purpose of this research study is to test a new treatment for prostate cancer. We have been exploring the use of cytokine (immune stimulating) gene therapy by directly injecting a virus which produces a cytokine called interleukin-12 (IL-12) into the prostate gland to control tumor growth. We propose to explore the use of adenovirus-mediated human interleukin-12 (Ad.hIL-12) in patients with recurrent non-metastatic prostate cancer following radiation therapy in a Phase I trial. Participants will be placed in rising dose groups with the primary endpoint of learning the maximum dose that can safely be given by injection directly into the prostate gland. Toxicity will be determined through physical examination, laboratory values, and blood levels of cytokines. Evidence of an immune response against prostate proteins will also be monitored. If the treatment works, the cancer will shrink or not grow. This will be monitored by prostate specific antigen (PSA) levels in the blood. However, we do not know if this treatment will be effective. If the PSA continues to rise after treatment, participants will be taken off study and offered other treatment. There is no compensation for participation in this research study. There will be no charge for the treatment with gene therapy or the monitoring associated with this research study. Monitoring will occur in a specially designated clinical research center.
RATIONALE: Giving low doses of chemotherapy, monoclonal antibodies, and radiation therapy before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells. It also stops the patient's immune system from rejecting the donor's stem cells when they do not exactly match the patient's blood. The donated stem cells may replace the patient's immune system and help destroy any remaining cancer cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving cyclosporine and mycophenolate mofetil before transplant may stop this from happening. PURPOSE: This phase I/II trial is studying the side effects of alemtuzumab, fludarabine, and melphalan with or without cyclosporine, mycophenolate mofetil, and total-body irradiation before donor peripheral blood stem cell transplant and to see how well they work in treating patients with relapsed or refractory hematologic cancer.
The purpose of this clinical research study is to answer the following questions using 18F-fluoromisonidazole as an imaging agent: 1. Do cells exist in human tumors that are at very low oxygen levels (hypoxic cells)? 2. If hypoxic cells exist in human tumors, do they effect the ability of radiotherapy to control human tumors? 3. Can Positron Emission Tomography (PET scanning) detect hypoxic cells in human tumors?
Although Neopharm has terminated its sponsorship of this study, it is continuing under the sponsorship of the NCI. Please contact Raffit Hassan, MD at 301-451-8742 for more information. Also see the related NCI study "Experimental Drug SS1(dsFv)-PE38 to Treat Cancer" (Study ID number 010011). SS1(dsFv)-PE38 is an oncology drug product containing a bacteria toxin, fused to a high affinity, disulfide stabilized antibody. The fused protein retains cell killing activity, but binds only to cells expressing mesothelin. Tumors characterized by very high surface mesothelin expression include mesothelioma; epithelial carcinomas of ovary and peritoneum; and squamous cancers of cervix and upper aerodigestive tract, including esophagus, head, and neck cancers. This is a dose-escalating study to determine the maximum tolerated dose (MTD) of intravenous SS1(dsFv)-PE38 administered once every other day for six doses. Dose escalation will proceed in cohorts of 3 until dose-limiting toxicity (DLT) is observed.
Although Neopharm has terminated its sponsorship of this study, it is continuing under the sponsorship of the NCI. Please see "Experimental Drug SS1(dsFv)-PE38 to Treat Cancer" (Study ID number 010011). SS1(dsFv)-PE38 is an oncology drug product containing a bacteria toxin, fused to a high affinity, disulfide stabilized antibody. The fused protein retains cell killing activity, but binds only to cells expressing mesothelin. Tumors characterized by very high surface mesothelin expression include mesothelioma; epithelial carcinomas of ovary and peritoneum; and squamous cancers of cervix and upper aerodigestive tract, including esophagus, head, and neck cancers. This is a dose-escalating study to determine the maximum tolerated dose (MTD) of intravenous SS1(dsFv)-PE38 administered continuously for 10 days every four weeks for a maximum of four courses of treatment. Dose escalation will proceed in cohorts of 3 until dose-limiting toxicity (DLT) is observed.