View clinical trials related to Radiation Injuries.
Filter by:RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Drugs such as amifostine may protect normal cells from the side effects of chemotherapy and radiation therapy. PURPOSE: Phase II trial to study the effectiveness of amifostine in treating side effects of treatment in patients receiving radiation therapy and cisplatin for advanced head and neck cancer.
RATIONALE: Amifostine may be an effective treatment for the toxic side effects caused by radiation therapy and chemotherapy. It is not yet known whether chemotherapy and radiation therapy are more effective with or without amifostine for non-small cell lung cancer. PURPOSE: Randomized phase III trial to determine the effectiveness of amifostine in treating patients who have stage II or stage III non-small cell lung cancer that cannot be surgically removed and who are undergoing chemotherapy and radiation therapy.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Amifostine may protect normal cells from the side effects of radiation therapy. PURPOSE: Phase II trial to study the effectiveness of radiation therapy plus amifostine in treating patients with primary prostate cancer.
Therapeutic irradiation to the head and neck for cancer damages salivary glands present in the radiation field. Despite long recognition of radiation-induced salivary hypofunction, and the associated oral morbidities, the specific damage mechanism(s) is not known and the structure and functional integrity of the surviving parenchymal tissue has not been well-documented. Detailed knowledge of the latter is particularly necessary in order to design appropriate corrective therapies. It is the purpose of this study to provide such a detailed structural and functional assessment of human parotid glands following irradiation. The study will examine 20 patients beginning just prior to therapeutic irradiation and continuing at intervals for 3 years for a total of 5 study visits. Study visits (prior to irradiation and at 4 weeks, 12 weeks, 12 months and 36 months post-irradiation) will include the following procedures: i) detailed oral exam and structured interview; ii) salivary gland functional assessment; iii) sialography of each parotid gland; iv) 99mTcO4 scan of the salivary glands; and v) a magnetic resonance imaging (MRI) scan of the parotid glands. Based on previous single observation studies in humans, and more detailed animal studies, we hypothesize that ionizing radiation will lead to reduced parotid gland function and diminished salivary parenchymal tissue (with a preferential loss in acinar versus ductal cells). Further, we hypothesize that the parenchymal loss will increase with time (replaced by fat and connective tissue) and lead to progressive irreversible salivary dysfunction.
After initial assessment of their condition by specified clinical and laboratory parameters, each of the patients will be treated for 8 weeks at the standard pentoxifylline dose (400 mg po TID). Objective and subjective response parameters will be re-assessed at the end of the treatment and 8 weeks later for possible decay of response.