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Docetaxel, Radiation Therapy, and Prednisone in Treating Patients Who Have Undergone Surgery For Prostate Cancer

3 de noviembre de 2017 actualizado por: The University of Texas Health Science Center at San Antonio

A Phase II Study to Assess the Feasibility and Activity of Concomitant Radiation and Docetaxel Chemotherapy Followed by Docetaxel Chemotherapy in Prostate Cancer Patients With a Persistent or Rising PSA After Radical Prostatectomy

RATIONALE: Drugs used in chemotherapy, such as docetaxel and prednisone, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Radiation therapy uses high-energy x-rays to kill tumor cells. Docetaxel may make tumor cells more sensitive to radiation therapy. Giving docetaxel together with radiation therapy and prednisone after surgery may kill any tumor cells that remain after surgery.

PURPOSE: This phase II trial is studying how well giving docetaxel together with radiation therapy and prednisone works in treating patients who have undergone surgery for prostate cancer.

Descripción general del estudio

Descripción detallada

OBJECTIVES:

Primary

  • Determine the rate of prostate-specific antigen (PSA) decline and the number of patients reaching a PSA nadir of zero after treatment with chemoradiotherapy comprising docetaxel and external-beam radiotherapy followed by docetaxel and prednisone in patients with hormone-naive prostate cancer who have a persistent or rising PSA after radical prostatectomy.

Secondary

  • Determine the tolerability of this regimen in these patients.
  • Determine the progression-free survival, based on PSA progression, of these patients.
  • Determine the overall survival of patients treated with chemoradiotherapy for rising PSA after radical prostatectomy.
  • Determine if the velocity of subsequent PSA failure impacts survival of these patients.

Tertiary

  • Document subsequent therapy for patients whose previous treatment has failed and if there is a response to that therapy.

Quaternary: To collect data on a contemporary cohort to those on study that received radiation alone. We will match cancer and patient characteristics to determine if the variable of chemotherapy has any impact on outcomes.

OUTLINE: Patients receive docetaxel IV over 1 hour on days 1, 8, 15, 22, 29, 36, and 43 and undergo external-beam radiotherapy on days 1-5, 8-12, 15-19, 22-26, 29-33, 36-40, and 43-47.

Beginning within 6 weeks after completion of chemoradiotherapy, patients receive docetaxel IV over 1 hour on day 1 and oral prednisone twice daily on days 1-21. Treatment repeats every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed at 1 month, every 4 months for 2 years, and then every 6 months for 3 years.

PROJECTED ACCRUAL: A total of 50 patients will be accrued for this study.

Tipo de estudio

Intervencionista

Inscripción (Actual)

21

Fase

  • Fase 2

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.

Ubicaciones de estudio

    • Texas
      • San Antonio, Texas, Estados Unidos, 78229-3900
        • University of Texas Health Science Center at San Antonio

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

Masculino

Descripción

Inclusion Criteria:

  • Histologically confirmed prostate cancer
  • Prostate-specific antigen (PSA) level > 0.2 ng/mL after radical prostatectomy performed ≥ 6 weeks ago
  • No lymph node-positive prostate cancer
  • No documented metastatic disease

    • CT scan of the abdomen and pelvis negative (within the past 6 months)
    • No bone pain OR negative bone scan (within the past 6 months)
  • ECOG performance status 0-2
  • Absolute neutrophil count ≥ 1,500/mm³
  • Platelet count ≥ 100,000/mm³
  • Hemoglobin ≥ 9 g/dL
  • Bilirubin normal
  • ALT and AST ≤ 1.5 times upper limit of normal
  • Alkaline phosphatase normal
  • Fertile patients must use effective contraception
  • No peripheral neuropathy > grade 1
  • No other malignancy within the last 5 years that could affect the diagnosis or assessment of prostate cancer
  • No serious illness with a life expectancy of < 5 years
  • No concurrent medical, psychological, or social circumstance that would preclude study compliance
  • No history of severe hypersensitivity reaction to docetaxel or other drugs formulated with polysorbate 80

Exclusion Criteria:

  • No prior orchiectomy
  • No prior chemotherapy regimen for this disease
  • No prior pelvic radiotherapy
  • No pre- or postoperative androgen manipulation, such as luteinizing hormone-releasing hormone agonists, antiandrogens (flutamide, bicalutamide, or nilutamide), or finasteride

    • Preoperative androgen manipulation for a duration of ≤ 3 months allowed
  • No prior immunotherapy
  • No prior strontium chloride Sr 89, samarium Sm 153 lexidronam pentasodium, or other systemic radioisotopes
  • No concurrent filgrastim (G-CSF) or sargramostim (GM-CSF)
  • No concurrent herbal or alternative regimens including, but not limited to, any of the following:

    • Saw palmetto
    • PC-SPES
    • Shark cartilage
  • No other concurrent investigational agents
  • No other concurrent chemotherapy, immunotherapy, or hormonal therapy (except for replacement steroids)

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 de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Docetaxel (Single Arm)
Docetaxel 20mg/m2/week IV every week during radiation treatment (7 cycles). Prednisone 5mg twice a day Radical prostatectomy as standard of care Radiation therapy will be used as standard of care Post radiation Doxcetaxel
Docetaxel 20mg/m2/week IV every week during standard of care radiation treatment (7 cycles). Post radiation: docetaxel 75mg/m2 IV every 21 days for 4 cycles plus prednisone 5mg PO BID QD.
Otros nombres:
  • Taxotere
Docetaxel 20mg/m2/week IV every week during radiation treatment (7 cycles). Post radiation: docetaxel 75mg/m2 IV every 21 days for 4 cycles plus prednisone 5mg PO BID QD.
Otros nombres:
  • prednisone oral
Radical prostatectomy as part of standard care
Doses for standard care radiation therapy: The initial target volume will be the lower pelvis followed by a boost to the prostate fossa and immediate periprostatic tissue. The initial dose will be 4500 cGy. With the final boost, the total dose will be 6840-6900 cGy. (4500/25 plus 2340/13 or 2400/12) with a total of 37 or 38 fractions.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Rate of Prostate-Specific Antigen (PSA) Decline Reported as the Number of Subjects Reaching a PSA Nadir of Zero Following the Intervention.
Periodo de tiempo: 5 years
Subjects were followed after the intervention and monitored for PSA (Prostate Specific Antigen) decline for up to 5 years of follow-up, to determine how many had a decline and reached a PSA nadir of zero..
5 years

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Sobrevivencia promedio
Periodo de tiempo: 5 años
5 años
Progression-free Survival Based on PSA Progression
Periodo de tiempo: 5 years
Subjects were monitored for PSA (Prostate Specific Antigen) for up to 5 years of follow-up.
5 years
Correlation Between Velocity of Subsequent PSA Failure and Survival
Periodo de tiempo: 5 years
5 years

Colaboradores e Investigadores

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

Investigadores

  • Silla de estudio: Gregory P. Swanson, MD, The University of Texas Health Science Center at San Antonio

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

1 de mayo de 2006

Finalización primaria (Actual)

8 de julio de 2016

Finalización del estudio (Actual)

8 de julio de 2016

Fechas de registro del estudio

Enviado por primera vez

5 de julio de 2006

Primero enviado que cumplió con los criterios de control de calidad

5 de julio de 2006

Publicado por primera vez (Estimar)

6 de julio de 2006

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

8 de diciembre de 2017

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

3 de noviembre de 2017

Última verificación

1 de abril de 2017

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. .

Ensayos clínicos sobre Cancer de prostata

Ensayos clínicos sobre docetaxel

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