A PHASE III TRIAL COMPARING WHOLE BRAIN IRRADIATION WITH VERSUS WITHOUT STEREOTACTIC RADIOSURGERY BOOST FOR PATIENTS WITH ONE TO THREE UNRESECTED BRAIN METASTASES
surgical procedure
+ radiation therapy
+ stereotactic radiosurgery
Enfermedades del Cerebro+8
+ Enfermedades del Sistema Nervioso Central
+ Neoplasias
Estudio de Tratamiento
Resumen
Fecha de inicio: 1 de enero de 1996
Fecha en la que se inscribió al primer participante.OBJECTIVES: I. Compare the overall survival of patients with one unresected brain metastasis treated with conventional whole brain radiotherapy (WBRT) with vs. without a stereotactic radiosurgery (SRS) boost. II. Compare sites of recurrence and cause of death in these patients treated with WBRT followed by SRS vs. WBRT alone. OUTLINE: This is a randomized, multicenter study. Patients are stratified according to center and extracranial disease (yes or no). Patients are randomized to one of two treatment arms. Arm I: Patients receive fractionated external beam whole brain irradiation (WBRT) 5 days each week for 3 weeks. Both portals are treated during each radiotherapy session. Patients who still have a solitary lesion with a diameter no greater than 4.0 cm also receive stereotactic radiosurgery within 7 days of completing WBRT. Arm II: Patients receive WBRT only. Patients are followed every 3 months for 1 year, then every 4 months for 2 years, and then annually. PROJECTED ACCRUAL: A total of 262 patients will be accrued over 2.5-3.75 years for this study. The study may close early if interim analysis after 33% and 67% of patients have been followed for 6 months produces significant results. After 6/14/99 an additional 46 patients with a solitary brain metastasis only will be accrued.
Protocolo
Esta sección proporciona detalles del plan del estudio, incluyendo cómo está diseñado y qué se está evaluando.Se reclutarán 333 pacientes
Número total de participantes que el ensayo clínico espera reclutar.Estudio de Tratamiento
Elegibilidad
Los investigadores buscan pacientes que cumplan ciertos criterios, conocidos como criterios de elegibilidad: estado general de salud o tratamientos previos.Cualquier sexo
Sexo biológico de los participantes elegibles para inscribirse.A partir de 18 años
Rango de edades de los participantes que pueden unirse al estudio.Voluntarios sanos no permitidos
Indica si personas sanas, sin la condición que se estudia, pueden participar.Condiciones
Patología
Criterios
DISEASE CHARACTERISTICS: No more than 1 unresected or subtotally resected brain metastasis lesion from histologically confirmed systemic malignancy Eligible only if surgical resection refused by patient or resection deemed inappropriate by patient's physician 1 intraparenchymal metastasis clearly defined on contrast enhanced MRI Maximum diameter of lesion no greater than 4.0 cm No leukemia or lymphoma Extracranial sites of primary metastatic disease allowed if no clinical or radiographic evidence of progression within 1 month prior to entry No metastasis to brainstem, midbrain, pons, or medulla No leptomeningeal metastasis by MRI or CSF evaluation No metastasis within 10 mm of optic nerves and chiasm (area must be excluded from high dose stereotactic radiosurgery boost field) PATIENT CHARACTERISTICS: Age: 18 and over Performance status: 70-100% Karnofsky Hematopoietic: Absolute neutrophil count at least 1,000/mm3 Platelet count at least 50,000/mm3 Hemoglobin at least 8 g/dL Hepatic: Not specified Renal: Not specified Other: Neurologic status 0-2 No major medical or psychiatric contraindication to protocol entry Fertile patients must use effective contraception PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No concurrent chemotherapy for systemic cancer Endocrine therapy: Concurrent hormonal therapy, including tamoxifen, allowed Radiotherapy: No prior cranial radiotherapy Surgery: Prior subtotal resection allowed Other: No other concurrent treatment for brain metastasis until recurrence
Plan de Estudio
Conoce todos los tratamientos administrados en este estudio, su descripción detallada y en qué consisten.2 grupos de intervención están designados en este estudio
0% de probabilidad de ser asignado al grupo placebo
Grupos de Tratamiento
Grupo I
ExperimentalGrupo II
Comparador ActivoCentros del Estudio
Estos son los hospitales, clínicas o centros de investigación donde se lleva a cabo el estudio. Puedes encontrar la ubicación más cercana a ti y su estado de reclutamiento.Este estudio tiene 258 ubicaciones
University of Alabama Comprehensive Cancer Center
Birmingham, United StatesAbrir University of Alabama Comprehensive Cancer Center en Google MapsComprehensive Cancer Institute of Huntsville
Huntsville, United StatesHuntsville Hospital System
Huntsville, United StatesMobile Infirmary Medical Center
Mobile, United States