- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00084552
Intensity-Modulated Radiation Therapy With or Without Decreased Radiation Dose to Erectile Tissue in Treating Patients With Stage II Prostate Cancer
Outcomes Following Intensity Modulated Radiation Therapy With And Without Erectile Tissue Dose Sparing For Favorable To Intermediate Risk Prostate Cancer
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Intensity-modulated radiation therapy (radiation directed at the tumor more precisely than in standard radiation therapy) may reduce damage to healthy tissue near the tumor. It is not yet known whether reducing the dose of radiation to erectile tissue will help prevent erectile dysfunction.
PURPOSE: This randomized phase III trial is studying intensity-modulated radiation therapy alone to see how well it works compared to intensity-modulated radiation therapy with reduced doses to erectile tissue in treating patients with stage II prostate cancer.
Descripción general del estudio
Estado
Intervención / Tratamiento
Descripción detallada
OBJECTIVES:
Primary
- Compare erectile dysfunction in patients with stage T1b-T2c adenocarcinoma of the prostate after treatment with intensity-modulated radiotherapy with vs without dose sparing for erectile tissue.
Secondary
- Compare biochemical freedom from failure rates, as a measure of prostate cancer control, in patients treated with these regimens.
- Compare the quality of life of patients treated with these regimens.
- Determine the association of molecular markers and biochemical freedom from failure rate and other endpoints in patients treated with these regimens.
OUTLINE: This is a randomized, single-blind study. Patients are stratified according to age (≤ 65 vs > 65), prescription radiotherapy dose (74 Gy vs 76 Gy), and frequency of erection during sexual activity within the past 4 weeks (a few times vs sometimes vs most times to always). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Patients undergo conventional intensity-modulated radiotherapy (IMRT) once daily 5 days a week for approximately 7.5 weeks.
- Arm II: Patients undergo IMRT with dose restriction to erectile tissue once daily 5 days a week for approximately 7.5 weeks.
Treatment in both arms continues in the absence of unacceptable toxicity or disease metastasis.
Quality of life is assessed at baseline, at 6 and 12 months, and then annually for 4 years
Patients are followed at 3 months and then every 6 months thereafter.
PROJECTED ACCRUAL: A total of 200 patients (100 per treatment arm) will be accrued for this study within 2.5 years.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
-
-
Pennsylvania
-
Philadelphia, Pennsylvania, Estados Unidos, 19111-2497
- Fox Chase Cancer Center - Philadelphia
-
-
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
DISEASE CHARACTERISTICS:
Histologically confirmed adenocarcinoma of the prostate
- Clinical stage T1b-T2c by palpation
- Pretreatment prostate-specific antigen ≤ 20 ng/mL
- Gleason score ≤ 7
- Suitable erectile function, defined as a response ≥ score 2 in question #1 of the International Index of Erectile Function Questionnaire
- No clinical, radiographic, or pathologic evidence of nodal or distant metastatic disease
PATIENT CHARACTERISTICS:
Age
- Not specified
Performance status
- Zubrod 0-1
Life expectancy
- Not specified
Hematopoietic
- Not specified
Hepatic
- Not specified
Renal
- Not specified
Other
- Fertile patients must use effective contraception
- No other active malignancy within the past 5 years except nonmetastatic skin cancer or early-stage chronic lymphocytic leukemia (well-differentiated small cell lymphocytic lymphoma)
- No other medical condition that would preclude study participation
PRIOR CONCURRENT THERAPY:
Biologic therapy
- Not specified
Chemotherapy
- Not specified
Endocrine therapy
- Prior androgen-ablation therapy allowed provided total calculated duration ≤ 4 months
Radiotherapy
- No prior pelvic radiotherapy
Surgery
- No prior or planned radical prostate surgery
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
---|---|
Comparador activo: Arm I
Patients undergo conventional intensity-modulated radiotherapy (IMRT) once daily 5 days a week for approximately 7.5 weeks.
|
Patients undergo conventional intensity-modulated radiotherapy (IMRT) once daily 5 days a week for approximately 7.5 weeks.
|
Experimental: Arm II
Patients undergo IMRT with dose restriction to erectile tissue once daily 5 days a week for approximately 7.5 weeks.
|
Patients undergo conventional intensity-modulated radiotherapy (IMRT) once daily 5 days a week for approximately 7.5 weeks.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
---|---|---|
Erectile Dysfunction Rates
Periodo de tiempo: 5 year duration after completion of radiotherapy
|
Postage Stamp Test -A row of stamps is placed around the base of the penis and the ends are moistened and joined. If the circle is broken in the morning then the subject was recorded as having had a nocturnal erection International Index of Erectile Function (IIEF) Questionnaire
|
5 year duration after completion of radiotherapy
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
---|---|---|
Percentage of Patients With Freedom From Biochemical Failure
Periodo de tiempo: 2 years after treatment
|
Patients without documented failure will undergo needle biopsy of the prostate.
A minimum of 12 core biopsies will be taken and additional biopsies will be taken from any suspicious areas (ultrasound or palpation) and/or the original site of biopsy confirmation of prostate cancer at diagnosis.
The 12 biopsy sites include sextant, bilateral lateral base, bilateral lateral mid-gland and bilateral transition zone.
These data will enable us to evaluate the extent of disease eradication, as well as the prognostic significance of positive biopsies in otherwise palpably normal prostate glands after treatment.
|
2 years after treatment
|
Acute GI Toxicity
Periodo de tiempo: 5 years after treatment
|
5 years after treatment
|
|
Acute GU Toxicity
Periodo de tiempo: 5 years after treatment
|
5 years after treatment
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Eric Horwitz, MD, Fox Chase Cancer Center
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
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
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 03-028
- CDR0000365458
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. .
Ensayos clínicos sobre Disfunción sexual
-
University of Nebraska LincolnCenters for Disease Control and Prevention; The Set Me Free Project; Des Moines...ReclutamientoViolencia sexual | Tráfico sexual | Abuso Infantil, Sexual | Delitos sexuales | Sexo comercial | Ofensa sexualEstados Unidos
-
The University of Texas Health Science Center,...United States Department of DefenseAún no reclutandoAgresión sexual | Acoso sexualEstados Unidos
-
Medstar Health Research InstituteThe Patty Brisben Foundation for Women's Sexual HealthReclutamientoComportamiento Sexual | Actividad sexualEstados Unidos
-
Royal Holloway UniversityNational Health Service, United KingdomTerminadoDisfunción sexual | Agresión sexual | Trastorno sexualReino Unido
-
Innovation Research & TrainingEunice Kennedy Shriver National Institute of Child Health and Human Development...TerminadoComportamiento Sexual | Violencia Doméstica | Agresión sexualEstados Unidos
-
University of California, San DiegoCalifornia Department of Public Health; Community Beyond Violence; Sierra Community... y otros colaboradoresInscripción por invitaciónViolencia sexual | Comportamiento adolescente | Agresión sexualEstados Unidos
-
University of BaghdadTerminadoComportamiento Sexual | Trastorno por conflicto de orientación sexual | Trastorno de excitación sexual | Orientación sexual | Sexual; Orientación, Trastorno De RelaciónIrak
-
Norwegian School of Sport SciencesUniversity of Toronto; University of Agder; UiT The Arctic University of Norway; The... y otros colaboradoresTerminadoTrastorno sicologico | Prevención | Abuso sexual | Acoso sexualNoruega
-
University of British ColumbiaTerminadoBaja excitación sexual femenina | Deseo sexual femenino bajoCanadá
-
Istanbul University - Cerrahpasa (IUC)TerminadoDisfunción sexual | Relacionado con el embarazo | Disfunción sexual pospartoPavo
Ensayos clínicos sobre radiation therapy
-
NeuroTronik Inc.DesconocidoInsuficiencia cardiaca | Insuficiencia cardíaca agudaParaguay
-
University of Roma La SapienzaTerminadoImplante dental fallido | Mucositis BucalItalia
-
NeuroTronik Inc.DesconocidoTerapia de estimulación autónoma del gasto cardíaco para la insuficiencia cardíaca aguda (COAST-AHF)Insuficiencia cardíaca agudaPanamá
-
Vyaire MedicalAún no reclutandoSíndrome de insuficiencia respiratoria del recién nacidoItalia
-
Boston Children's HospitalTerminadoEstrés Psicológico | Problema de aculturaciónEstados Unidos
-
Abbott Medical DevicesTerminadoFlutter auricular típicoEstados Unidos, Canadá
-
Abbott Medical DevicesTerminadoFibrilación auricular paroxísticaAustralia, Alemania, Francia, Italia, Portugal, Reino Unido
-
Abbott Medical DevicesTerminado
-
Northwestern UniversityNeuroneticsTerminadoDepresión | Ansiedad | Cáncer en remisión (cualquier tipo o etapa)Estados Unidos