Active clinical trials for "Precancerous Conditions"

RATIONALE: Giving low doses of chemotherapy, such as fludarabine and busulfan, 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. The donated stem cells may replace the patient's immune system and help destroy any remaining cancer cells (graft-versus-tumor effect). Giving an infusion of the donor's T cells (donor lymphocyte infusion) after the transplant may help increase this 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 after the transplant may stop this from happening. PURPOSE: This phase I/II trial is studying the side effects of giving busulfan and fludarabine together with total-body irradiation and to see how well they work in treating patients who are undergoing a donor stem cell transplant for hematologic cancer.

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 PS-341 in treating patients who have advanced cancer.

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.

Phase I trial to study the effectiveness of combining interleukin-12 and interferon alfa in treating patients who have residual, recurrent, or metastatic malignant melanoma or other advanced cancer that has not responded to standard therapy. Interleukin-12 may stimulate a person's white blood cells to kill cancer cells. Interferon alfa may interfere with the growth of the cancer cells. Combining interleukin-12 with interferon alfa may kill more cancer cells.

RATIONALE: Photodynamic therapy uses a drug that becomes active when it is exposed to a certain kind of light. When the drug is active, tumor cells are killed. PURPOSE: This randomized phase I trial is studying the side effects and best dose of photodynamic therapy in treating patients with premalignant or early stage head and neck tumors.

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. PURPOSE: This research trial is studying gene expression profiling of cervical cancer progression in biopsies and tissue samples from patients with cervical lesions.

RATIONALE: Broccoli sprout extract supplements may slow the growth of tumor cells or abnormal cells and may be an effective treatment for ductal carcinoma in situ and/or atypical ductal hyperplasia. PURPOSE: This randomized phase II trial is studying how well broccoli sprout extract works in treating women with a diagnosis of breast cancer, ductal carcinoma in situ and/or atypical ductal hyperplasia.

RATIONALE: Drugs used in chemotherapy, such as 17-N-allylamino-17-demethoxygeldanamycin (17-AAG), work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. PURPOSE: This phase II trial is studying how well 17-AAG works in treating patients with systemic mastocytosis.

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.

RATIONALE: Aspirin mouthwash may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. PURPOSE: This phase I trial is studying the side effects and best dose of aspirin mouthwash in treating patients with oral leukoplakia.