The Prostate Immobilization Device Study
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
The investigator assessed the device position and location of the interface between rectum and prostate weekly during the course of treatment. This information was obtained using a conebeam CT scan on the treatment couch prior to a regularly scheduled radiation treatment. The conebeam CT scan is a standard tool for monitoring patient position and radiation treatment accuracy. Prior to each radiation treatment, the patient was placed in a vaclock immobilization device, then aligned with room lasers to skin tattoos. On board portal imaging was then employed using the KvKv match technique to place isocenter as simulated. For intact prostate treatment, alignment was made to implanted gold fiducial markers. For post prostatectomy patients, the alignment was to pelvic bony anatomy. After patient alignment was complete, a conebeam CT scan was obtained. The position of the anterior rectal wall and the interface between prostate and rectum was compared to the position of these structures at the time of simulation. Measurement was taken in the midline of the prostate gland between its base and apex of the maximum deviation of the rectum prostate interface from its position at the time of simulation. For post prostatectomy patients, a measurement was taken of the maximum deviation from simulation of interface between the rectum and the prostate bed/bladder. These measurements were recorded weekly by the treating radiation oncologist on the Physician Data Sheet.
The difficulty of device insertion, positioning and inflation was recorded daily by the treating personnel based on a scale in the PIDS Daily Radiation Therapist Questionnaire, from 1(none) to 5(unable to insert). These results were summarized by the clinical study coordinators on the PIDS Radiation Therapist Summary.
Patient expression of discomfort during device placement was recorded daily by treating personnel based on a scale in the PIDS Daily Radiation Therapist Questionnaire, from 1(none) to 5(intolerable). These responses will be summarized by the clinical study coordinators on the PIDS Radiation Therapist Summary.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Wisconsin
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Racine, Wisconsin, Estados Unidos, 53405
- Wheaton Francsican Cancer Care - All Saints
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- 18 years of age or older
- Clinically localized T1-3 N0-1 M0 adenocarcinoma of the prostate
- Planned definitive radiation therapy
Exclusion Criteria:
- Prior proctectomy
- Rectal surgery within one year
- Proctitis
- Rectal carcinoma
- Anal Stenosis
- History of inflammatory bowel disease
- Scleroderma
- Systemic sclerosis
- Refusal of treatment with immobilization device
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Comparador activo: Miller enema air tip
The Miller enema air tip rectal balloon is inserted into the rectum prior to radiation simulation and also prior to each radiation treatment to immobilize prostate gland and displace rectal tissue during radiation therapy.
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Miller Enema Air Tip is inserted into rectum prior to simulation and each radiation treatment.
Otros nombres:
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Comparador activo: Radiadyne Immobilizer
The Radiadyne Immobilizer Treatment Device is inserted into the rectum prior to radiation simulation and also prior to each radiation treatment to immobilize prostate gland and displace rectal tissue during radiation therapy
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Radiadyne Immobilizer is inserted into rectum prior to simulation and each radiation treatment
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Deviation of the Prostate Rectal Interface From Its Position at Time of Simulation.
Periodo de tiempo: Up to 9 weeks
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Measurements will be taken for at least 5, and up to 9, occasions on a weekly basis during each patient's course of treatment.
An average value will be determined for each patient.
An average of individual patient values will be determined for each immobilization device.
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Up to 9 weeks
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Difficulty of Insertion.
Periodo de tiempo: Up to nine weeks
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Difficulty of device insertion was scored for each treatment by the treating radiation therapist on a scale from 1(easiest) to 5(most difficult).
An average score was obtained at completion of therapy for each patient.
At completion of the study, an average value was obtained for each immobilization device by averaging the average score for each patient .
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Up to nine weeks
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Patient Expression of Discomfort
Periodo de tiempo: Up to nine weeks
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Patient expression of discomfort was scored for each insertion by the treating radiation therapist on a scale from 1(none) to 5(intolerable).
An average score was obtained at completion of therapy for each patient.
At completion of the study, an average value was obtained for each immobilization device by averaging the average score for each patient .
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Up to nine weeks
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: James H Taylor, MD, Wheaton Franciscan Cancer Care - All Saints
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 11-019-ASH
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
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