View clinical trials related to Precancerous Conditions.
Filter by:This study will collect biological samples-blood, bone marrow, tumor or other tissue samples-for use in cancer-related research. The specimens will be used for various tests of drug resistance, blood vessel formation, cancer-causing proteins and immune functions. The purpose is to identify steps in the cancer development process that may serve as targets for treatment and to test various therapies for current and future cancer treatment clinical trials. Individuals 18 years of age and older with cancer or a pre-cancerous condition, such as colon polyps or cervical dysplasia, are eligible for this study, as are patients at high risk for cancer. In addition, patients who do not have cancer but require surgery, biopsy or other procedure for another medical reason may be included as normal specimen donors. Participants will have about 40 milliliters (3 tablespoons) of blood drawn upon entering the study and additional 40-ml samples drawn periodically during the course of treatment. No more than 120 ml of blood will be drawn over a 12-month period. Some patients may require a surgical procedure or biopsy (removal of tumor tissue) for medical reasons or as part of their enrollment in a research treatment study. In such cases, a portion of the specimens collected during those procedures will be used for the research studies in this protocol.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase I trial to study the effectiveness of pyroxamide in treating patients who have advanced cancer.
Reduction in size and number of oral premalignant lesions
RATIONALE: Chemoprevention therapy is the use of certain substances to try to prevent the development of cancer. Applying topical imiquimod before abnormal cervical cells are removed may be effective in preventing cervical cancer. PURPOSE: Randomized phase II trial to study the effectiveness of applying topical imiquimod before abnormal cervical cells are removed in preventing cervical cancer in patients who have recurrent or persistent cervical neoplasia.
RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development of cancer. The use of selenium may be an effective way to prevent prostate cancer in patients who have neoplasia of the prostate. PURPOSE: Randomized phase III trial to study the effectiveness of selenium in preventing prostate cancer in patients who have neoplasia of the prostate.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining methotrexate with vinblastine may be effective treatment for neurofibromatosis type 1 associated with progressive plexiform neurofibromas. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy in treating patients who have neurofibromatosis type 1 associated with progressive plexiform neurofibromas.
RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. The use of celecoxib may be an effective way to prevent actinic keratoses. PURPOSE: Randomized phase II/III trial to determine the effectiveness of celecoxib in preventing skin cancer in patients who have actinic keratoses.
RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. Eflornithine with or without triamcinolone may be effective in preventing nonmelanoma skin cancer. PURPOSE: Randomized phase II trial to compare the effectiveness of eflornithine with or without triamcinolone in preventing nonmelanoma skin cancer in patients who have actinic keratosis.
RATIONALE: Biological therapies such as beta alethine use different ways to stimulate the immune system and stop cancer cells from growing. PURPOSE: Phase I/II trial to study the effectiveness of beta alethine in treating patients who have myeloma.
RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Peripheral stem cell transplantation may be able to replace immune cells that were destroyed by chemotherapy used to kill cancer cells. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy followed by peripheral stem cell transplantation in treating patients who have hematologic cancer or aplastic anemia.