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Triptorelin and Radiation Therapy in Treating Patients Who Have Undergone Surgery for Intermediate-Risk Stage III or Stage IV Prostate Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00667069
Recruitment Status : Active, not recruiting
First Posted : April 25, 2008
Last Update Posted : February 22, 2022
Information provided by (Responsible Party):

Brief Summary:

RATIONALE: Androgens can cause the growth of prostate cancer cells. Antihormone therapy, such as triptorelin, may lessen the amount of androgens made by the body. Radiation therapy uses high-energy x-rays to kill tumor cells. It is not yet known whether giving triptorelin and radiation therapy soon after surgery or later after surgery is more effective in treating prostate cancer.

PURPOSE: This randomized phase III trial is studying giving triptorelin and radiation therapy soon after surgery to see how well it works compared with giving them later after surgery in treating patients who have undergone surgery for intermediate-risk stage III or stage IV prostate cancer.

Condition or disease Intervention/treatment Phase
Prostate Cancer Drug: triptorelin Procedure: adjuvant therapy Radiation: 3-dimensional conformal radiation therapy Phase 3

Detailed Description:



  • Compare the efficacy, in terms of event-free survival at 5 years, of immediate radio-hormonal therapy immediately after prostatectomy for tumor pT2, R1, pN0, or pNx versus radio-hormonal therapy at biochemical relapse.


  • Compare the overall survival of patients treated with these regimens.
  • Compare the metastasis-free survival of these patients.
  • Compare the acute and late toxicities of these regimens in these patients.
  • Compare the quality of life of patients treated with these regimens.
  • Compare the functional dependence of patients over 75 years old.

OUTLINE: Patients are randomized to 1 of 2 treatment arms.

  • Arm I (delayed treatment): Patients receive triptorelin intramuscularly on day 1 and then 3 months later. Patients also undergo conformal radiotherapy daily, 5 days a week, for 7 weeks. Treatment begins at biochemical relapse (PSA is more than 0.2 ng/mL) and before PSA is more than 2 ng/mL.
  • Arm II (immediate treatment): Patients receive treatment as in arm I, but treatment begins within 6 months after surgery.

After completion of study treatment, patients are followed for up to 5 years.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 424 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Randomized, Multicenter Study Comparing the Immediate Adjuvant Radiotherapy Associate With Hormonal Therapy of LH-RH Analogue (Decapeptyl® LP) vs Delayed Radiotherapy Until Biochemical Relapse Associated With Hormonal Therapy of LH-RH Analogue (Decapeptyl® LP) in Patients With Operable Prostate Cancer pT3 R1 pN0 or pNx at Intermediate Risk.
Actual Study Start Date : April 7, 2008
Actual Primary Completion Date : April 2020
Estimated Study Completion Date : April 2025

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Prostate Cancer

Arm Intervention/treatment
A Relapse
Radiotherapy and Hormonotherapy only if relapse
Drug: triptorelin
Other Name: Decapeptyl

Procedure: adjuvant therapy
Radiation: 3-dimensional conformal radiation therapy
Experimental: B Immediate treatment
Radiotherapy and Hormonotherapy at randomization
Drug: triptorelin
Other Name: Decapeptyl

Procedure: adjuvant therapy
Radiation: 3-dimensional conformal radiation therapy

Primary Outcome Measures :
  1. Event-free survival [ Time Frame: From randomization to disease progression or death, up to 5 years ]
    The event-free survival is the length of time during and after the treatment of a disease that a patient lives with the disease but it does not get worse (clinical progression, biochemical progression, death)

Secondary Outcome Measures :
  1. Overall survival [ Time Frame: From randomization to death from any cause, up to 10 years ]
    The overall survival is the length of time from randomization that patients enrolled in the study are still alive.

  2. Metastases-free survival [ Time Frame: From randomization to metastases onset, up to 10 years ]
    The metastases-free survival is the length of time during and after the treatment for cancer that a patient is still alive and the cancer has not spread to other parts of the body.

  3. Acute or chronic toxicity [ Time Frame: Throughout study completion, up to 10 years ]
    The National Cancer Institute-Common Terminology Criteria for Adverse Events version 3 (NCI-CTCAE v3.0) is widely accepted in the community of oncology research as the leading rating scale for adverse events. This scale will assess the severity of sensory neuropathic disorders, this derivative into 5 grades determined by the investigator.

  4. Quality of life questionnaire - Core 30 (QLQ-C30) [ Time Frame: At baseline, 2 years, and 5 years ]

    Developed by the EORTC, this self-reported questionnaire assesses the health-related quality of life of cancer patients in clinical trials.

    The questionnaire includes five functional scales (physical, everyday activity, cognitive, emotional, and social), three symptom scales (fatigue, pain, nausea and vomiting), a health/quality of life overall scale, and a number of additional elements assessing common symptoms (including dyspnea, loss of appetite, insomnia, constipation, and diarrhea), as well as, the perceived financial impact of the disease.

    All of the scales and single-item measures range in score from 0 to 100. A high scale score represents a higher response level.

  5. Quality of Life Questionnaire - Prostate Cancer Module (QLQ-PR25) [ Time Frame: At baseline, 2 years, and 5 years ]

    This EORTC prostate cancer specific questionnaire is intended to supplement the QLQ-C30.

    The prostate cancer module is a 25-item questionnaire designed for use among patients with localized and metastatic prostate cancer. It includes subscales assessing urinary symptoms (9 items), bowel symptoms (4 items), treatment-related symptoms (6 items), and sexual functioning (6 items). Using a 4-point Likert scale (1 = "not at all", 2 = "a little", 3 = "quite a bit", and 4 = "very much"), patients indicate the degree to which they have experienced symptoms.

  6. Functional dependence in patients over 75 years old [ Time Frame: At baseline, 2 years, and 5 years ]
    The Lawton Instrumental Activities of Daily Living (IADL) Scale is a self-reported questionnaire to assess independent living skills for older adults. This questionnaire, composed of 31 questions organized into 8 domains (ability to use telephone, shopping, food preparation, housekeeping, laundering, mode of transportation, responsibility for own medications, and ability to handle finances), is designed to identify improvement or deterioration of a person functioning over time. Each domain is scored 0-1 for a summary score ranging from 0 (low function, dependent) to 8 (high function, independent).

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion criteria:

  1. Patient must have undergone curative surgery for a localized adenocarcinoma of the prostate
  2. pT3a, pT3b (or pT4 by reaching the bladder neck), or R1 disease (stage III or IV)
  3. PSA ≤0.1 ng/mL after prostatectomy (confirmed at 1 month)
  4. May receive treatment within 6 months after surgery
  5. Positive margins (tumoral glands in contact with contour ink) on the surgical specimen
  6. pN0 or pNx (lymph nodes resected during negative prostatectomy or lymph nodes not resected)
  7. No current clinical or biochemical progressive disease
  8. Life expectancy ≥10 years
  9. Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
  10. Patient must be affiliated to the social security system
  11. Patient must have received the information sheet and signed the consent form

Exclusion criteria:

  1. Patient with prostate cancer other than adenocarcinoma
  2. Gleason score ≥8 and with seminal vesicles involved
  3. pN1 disease (Histologically confirmed nodal invasion during initial lymph node resection)
  4. pT2 disease
  5. Prior surgical or chemical castration
  6. Prior hormonal therapy
  7. Prior radiotherapy within 3 months after radical prostatectomy
  8. Prior pelvic radiotherapy
  9. No history of cancer (except basal cell skin cancer) within 5 years of surgery
  10. No known severe hypertension uncontrolled by appropriate therapy (≥160 mm Hg systolic and/or ≥90 mm Hg diastolic)
  11. Known hypersensitivity to gonadotropin-releasing hormone or its analogs
  12. Contraindication to intramuscular injection
  13. Concurrent participation in another interventional study
  14. Patients under protective custody or guardianship, unable to comply with the specific requirements of the study or unable to understand the purpose of the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00667069

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Sponsors and Collaborators
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Study Chair: Pierre Richaud, MD Institut Bergonié
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: UNICANCER
ClinicalTrials.gov Identifier: NCT00667069    
Other Study ID Numbers: GETUG-AFU 17 - UC-0160/0702
2007-002495-34 ( EudraCT Number )
CDR0000577485 ( Other Identifier: Unicancer )
First Posted: April 25, 2008    Key Record Dates
Last Update Posted: February 22, 2022
Last Verified: February 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by UNICANCER:
adenocarcinoma of the prostate
stage III prostate cancer
stage IV prostate cancer
Additional relevant MeSH terms:
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Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Prostatic Diseases
Triptorelin Pamoate
Luteolytic Agents
Contraceptive Agents, Female
Contraceptive Agents
Reproductive Control Agents
Physiological Effects of Drugs
Contraceptive Agents, Hormonal
Antineoplastic Agents, Hormonal
Antineoplastic Agents