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Discover 20,904 clinical trials near Philadelphia, Pennsylvania. Find research studies in your area.
Showing 5881-5900 of 20,904 trials
NCT02186509
This phase I trial studies the side effects and best dose of alisertib when combined with fractionated stereotactic radiosurgery in treating patients with high-grade gliomas that have returned after previous treatment with radiation therapy (recurrent). Alisertib may stop the growth of tumor cells by blocking an enzyme needed for the cells to divide. Radiation therapy uses high energy x rays to kill tumor cells. Stereotactic radiosurgery uses special positioning equipment to send a single high dose of radiation directly to the tumor and cause less damage to normal tissue. Delivering stereotactic radiosurgery over multiple doses (fractionation) may cause more damage to tumor tissue than normal tissue while maintaining the advantage of its accuracy.
NCT00983307
It is generally accepted that the presence of chronically hypoxic cells, or tumor cells which do not receive enough oxygen as a result of tumor growth, may be an important cause of resistance to radiation therapy (RT) and resultant tumor recurrence, particularly in large tumors such as advanced non-small-cell lung cancer (NSCLC). Therefore, delivering a higher RT dose, as is done with hypofractionated RT, to the tumor may result in higher success rate. Erlotinib (Tarceva, previously known as OSI-774) is an orally active, potent, selective inhibitor of the Epidermal Growth Factor Receptor (EGFR) tyrosine kinase. A recently completed trial has shown that Erlotinib as a single agent significantly improves the survival of patients with incurable Stage IIIb/IV NSCLC who have failed standard therapy for advanced or metastatic disease. Therefore, Erlotinib is an approved medication for second-line therapy in lung cancer following prior chemotherapy. This is a Phase II clinical research study to assess the efficacy and toxicity of hypofractionated radiation therapy in combination with Erlotinib in patients with locally advanced or inoperable non-small-cell lung cancer (NSCLC). The investigators' hypothesis is that the addition of erlotinib to RT will result in radiosensitization, therefore increasing the likelihood of local tumor control over RT alone. Maintenance erlotinib upon RT completion will result in further tumor growth inhibition, both systemically and locally, lengthening disease-free survival and overall survival.