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RATIONALE: Specialized radiation therapy, such as proton beam radiation therapy, that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue.
PURPOSE: This phase I/II trial is studying the best way to give proton beam radiation therapy and to see how well it works in treating patients with low grade gliomas.
I. To evaluate the feasibility of proton beam radiation therapy in patients with low grade gliomas. (Phase I)
I. To assess late complications from irradiation using proton beam therapy in place of conventional photon beam therapy for the treatment of low grade gliomas. (Phase II) II. To assess acute side effects from irradiation using proton beam therapy in place of conventional photon beam therapy for the treatment of low grade gliomas. (Phase II) III. To compare the dose distribution to tumor and surrounding normal structures using DVH's (Dose Volume Histograms) generated from the proton plan used to treat the patient and the photon plan generated for comparison purposes. (Phase II) IV. To monitor the rates of local control, overall and disease specific survival using proton radiotherapy. (Phase II) V. To evaluate the time to progression of low grade gliomas treated with protons. (Phase II) VI. To evaluate the incidence and severity of fatigue in low grade glioma treated with protons. (Phase II) VII. To evaluate the effect of proton beam radiation on neurocognitive outcome in patients with low grade glioma. (Phase II) VIII. To evaluate the quality of life in patients treated for low grade glioma. (Phase II)
OUTLINE: Patients undergo proton beam radiation therapy for 6 weeks in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed periodically for 5 years.
Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Adult Brain Tumor
proton beam radiation therapy, quality-of-life assessment, questionnaire administration
Abramson Cancer Center of The University of Pennsylvania
Abramson Cancer Center of the University of Pennsylvania
Published on BioPortfolio: 2014-08-27T03:17:33-0400
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The use of an external beam of PROTONS as radiotherapy.
An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
Preliminary cancer therapy (chemotherapy, radiation therapy, hormone/endocrine therapy, immunotherapy, hyperthermia, etc.) that precedes a necessary second modality of treatment.
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Activities and programs intended to assure or improve the quality of care in either a defined medical setting or a program. The concept includes the assessment or evaluation of the quality of care; identification of problems or shortcomings in the delivery of care; designing activities to overcome these deficiencies; and follow-up monitoring to ensure effectiveness of corrective steps.
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