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Radiocirugía preoperatoria para el tratamiento del glioma de alto grado, el estudio NeoGlioma

29 de septiembre de 2026 actualizado por: Mayo Clinic

Radiocirugía preoperatoria en glioma de alto grado: un ensayo clínico de fase I/IIA: el estudio NeoGlioma

This phase I trial finds out the possible benefits and/or side effects of radiosurgery before surgery (preoperative) in treating patients with high grade glioma. Radiosurgery uses special equipment to position the patient and precisely give a single large dose of radiation to the tumor. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. Giving pre-operative radiosurgery may improve the odds of brain tumor control and reduce treatment-related side effects.

Descripción general del estudio

Descripción detallada

PRIMARY OBJECTIVE:

I. To evaluate the feasibility, safety and maximum tolerated dose (MTD) of preoperative radiosurgery in the treatment of patients with biopsy-proven high-grade glioma prior to conventional therapy.

SECONDARY OBJECTIVES:

I. Acute clinical toxicity profile using Common Terminology Criteria for Adverse Events (CTCAE) version 5 (defined as within 4 weeks of completion of postoperative radiotherapy.

II. Radiographic tumor control at 12 months following surgery (per Response Assessment in Neuro-Oncology [RANO] criteria).

III. Rate of pseudoprogression at first post radiation scan (RANO criteria). IV. Overall survival at 12 months following surgery.

CORRELATIVE RESEARCH OBJECTIVE:

I. Evaluation of the tumor repair pathways triggered by radiation, tumor vascular changes, tumor microenvironment immune profiling, cell cultures, and the creation of orthotopic xenograft models for future study.

OUTLINE: This is a dose-escalation study.

Patients undergo magnetic resonance imaging (MRI)-guided stereotactic biopsy. Within 14 days of registration, patients undergo either standard of care surgery or radiosurgery in 1 fraction. Within 14 days, patients who underwent radiosurgery then undergo surgery. Within 4-6 weeks, all patients then receive standard of care radiation therapy over 30 fraction and temozolomide daily with or without tumor treating fields (TTF) at the discretion of the treating neuro-oncologist. Additionally, patients undergo MRI and blood sample collection and optional biopsy throughout the study.

After completion of study treatment, patients are followed up every 2-3 months for 12 months and then every 3 months for up to 3 years after registration.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

28

Fase

  • Fase 1

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Ubicaciones de estudio

    • Arizona
      • Phoenix, Arizona, Estados Unidos, 85054
        • Reclutamiento
        • Mayo Clinic in Arizona
        • Contacto:
        • Investigador principal:
          • Sujay Vora, MD
    • Florida
      • Jacksonville, Florida, Estados Unidos, 32224-9980
        • Reclutamiento
        • Mayo Clinic in Florida
        • Contacto:
        • Investigador principal:
          • Daniel M. Trifiletti, MD

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Age >= 18 years
  • Clear clinical and radiographic evidence of primary high grade glioma (HGG) as judged by the Mayo multidisciplinary neuro-oncology team (World Health Organization [WHO] grade III-IV, including glioblastoma) regardless of IDH and MGMT status
  • Patients who underwent a previous biopsy confirming high grade glioma are eligible for enrollment
  • Planned neurosurgical resection of tumor
  • Judged to not be at risk of significant clinical risk (i.e. herniation) with radiation-induced edema prior to resection
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2
  • Negative pregnancy test done =< 14 days prior to registration, for women of childbearing potential only. Patients over 50 years of age who decline pregnancy testing are still eligible without a pregnancy test.
  • Ability to complete questionnaire(s) by themselves or with assistance
  • Provide written informed consent
  • Willing to receive adjuvant radiotherapy at enrolling institution at the time of registration
  • Willing to provide tissue and/or blood samples for correlative research purposes

Exclusion Criteria:

  • Any of the following:

    • Pregnant women
    • Nursing women who are unwilling to cease during therapy
    • Men or women of childbearing potential who are unwilling to employ adequate contraception
  • Prior history of cranial radiotherapy

  • Unwillingness to participate in study

  • Investigator discretion that enrollment on the study would pose undo harm or risk to the patient

  • Non-MRI compatible implanted medical device

  • Use of systemic anti-cancer therapy within the previous 3 months

  • Medical contraindication to craniotomy and tumor resection

  • Pathologic confirmation of grade I-II glioma, brain metastasis, or other brain tumor

    • Note: Patients with a history of grade I-II glioma are eligible if they have only received surgery as treatment and now there is concern for transformation to grade III-IV tumor
  • Primary spinal cord glioma or primary brainstem glioma

  • Residual tumor of excessive volume or eloquent location per investigator discretion

  • Patients who are unwilling or unable to comply with study procedures

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: N / A
  • Modelo Intervencionista: Asignación Secuencial
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Treatment (stereotactic biopsy, radiosurgery, surgery)

Patients undergo MRI-guided stereotactic biopsy. Within 14 days of registration, patients undergo either standard of care surgery or radiosurgery in 1 fraction. Within 14 days, patients who underwent radiosurgery then undergo surgery. Within 4-6 weeks, all patients then receive standard of care radiation therapy over 30 fraction and temozolomide daily with or without TTF at the discretion of the treating neuro-oncologist. Additionally, patients undergo MRI and blood sample collection and optional biopsy throughout the study.

Undergo blood sample collection

Otros nombres:
  • Recolección de muestras biológicas
  • Muestra biológica recolectada
  • Coleccion de especimenes

Undergo MRI

Otros nombres:
  • Resonancia magnética
  • Resonancia magnetica
  • Exploración de imágenes por resonancia magnética
  • Imágenes Médicas, Resonancia Magnética / Resonancia Magnética Nuclear
  • SRES
  • Imágenes de RM
  • Imágenes de RMN
  • RMN
  • imágenes de resonancia magnética nuclear
  • Imágenes por resonancia magnética (IRM)
  • resonancia magnética nuclear
  • Imágenes por resonancia magnética (procedimiento)
  • Resonancias magnéticas
  • Resonancia magnética estructural

Undergo radiation therapy

Otros nombres:
  • Radioterapia del cáncer
  • TIPO_ENERGÍA
  • Irradiar
  • Irradiado
  • Irradiación
  • Radiación
  • Radioterapia, SAI
  • Radioterapéutica
  • Radioterapia
  • RT
  • Terapia, Radiación

Undergo surgery

Undergo biopsy

Otros nombres:
  • Caja
  • BIOPSIA_TIPO

Undergo radiosurgery

Otros nombres:
  • Ablación, Radioquirúrgica
  • Cirugía de radiación

Undergo MRI-guided stereotactic biopsy

Drug

Otros nombres:
  • Temodar
  • SCH 52365
  • Temodal
  • Temcad
  • Metazolastona
  • RP-46161
  • Temomedac
  • TMZ
  • CCRG-81045
  • Imidazo[5,1-d]-1,2,3,5-tetrazina-8-carboxamida, 3, 4-dihidro-3-metil-4-oxo-
  • M & B 39831
  • M y B 39831
  • Gliotem
  • Temizol

Undergo TTF

Otros nombres:
  • TTFields
  • Terapia de campo eléctrico alterno
  • TTF

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Proportion of patients experiencing any acute grade 3 or greater unplanned adverse event
Periodo de tiempo: Up to 4 weeks postoperative radiotherapy

Assessed per Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0. The toxicity rate will be estimated using a binomial estimator and a one-sided 95% confidence interval (CI) of the rate will be computed with normal approximation.

Up to 4 weeks postoperative radiotherapy
Acute clinical toxicity
Periodo de tiempo: Up to 4 weeks postoperative radiotherapy

Assessed per CTCAE v5.0. The maximum grade for each type of acute adverse events will be recorded for each patient. Data will be summarized as frequencies and relative frequencies by treatment arm. Additionally, the relationship of the adverse event(s) to the study treatment will be taken into consideration. Rates will be compared between arms using chi-squared tests.

Up to 4 weeks postoperative radiotherapy
Maximum tolerated dose (MTD) of preoperative radiosurgery
Periodo de tiempo: Up to 4 weeks postoperative radiotherapy

After the trial is completed, the MTD will be based on isotonic regression. The dose for which the isotonic estimate of the toxicity rate is closest to the target toxicity rate will be selected as the MTD. If there are ties, the higher dose level will be selected when the isotonic estimate is lower than the target toxicity rate; and the lower dose level will be selected when the isotonic estimate is greater than or equal to the target toxicity rate.

Up to 4 weeks postoperative radiotherapy

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Radiographic tumor control
Periodo de tiempo: At 12 months post-surgery

Assessed per Response Assessment in Neuro-Oncology (RANO) criteria. The cumulative incidence of radiographic tumor recurrence will be estimated using a competing risks method (Gooley et al.). The competing risks will be death.

At 12 months post-surgery
Rate of pseudoprogression
Periodo de tiempo: At first post radiation scan

Assessed per RANO criteria. Data will be summarized as frequencies and relative frequencies overall and by treatment dose. Additionally, the relationship of the pseudoprogression(s) to the study treatment will be taken into consideration.

At first post radiation scan
Overall survival
Periodo de tiempo: At 12 months post-surgery

Overall survival (OS) is defined as the time from study enrollment to death by any cause. Will be estimated with a Kaplan-Meier estimator and curve for patients treated with preoperative radiosurgery. Estimates will be given for specific time points along with 95% CIs.

At 12 months post-surgery

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Tumor tissue evaluation of tumor changes
Periodo de tiempo: Up to 14 days Post-radiosurgery

Any excess tissue recovered from the surgical specimen (after standard of care pathologic evaluation) will undergo a series of advanced testing, potentially including but not limited to evaluation of the tumor repair pathways triggered by radiation, tumor vascular changes, tumor microenvironment immune profiling, cell cultures, and the creation of orthotopic xenograft models for future study. Analysis will be completed outside the scope of this protocol.

Up to 14 days Post-radiosurgery

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Investigadores

  • Investigador principal: Daniel M. Trifiletti, MD, Mayo Clinic

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

23 de mayo de 2023

Finalización primaria (Estimado)

15 de marzo de 2027

Finalización del estudio (Estimado)

15 de marzo de 2028

Fechas de registro del estudio

Enviado por primera vez

23 de agosto de 2021

Primero enviado que cumplió con los criterios de control de calidad

26 de agosto de 2021

Publicado por primera vez (Actual)

1 de septiembre de 2021

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

30 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

29 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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