Title

Clinical Trials of Adjuvant Androgen Deprivation in Localized Prostate Cancer
Phase III Multicenter Randomized Trial of Adjuvant Androgen Deprivation in Combination With Three-dimensional Conformal Radiotherapy Doses in High and Intermediate Risk Localized Prostate Cancer.
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Intervention/Treatment

    goserelin bicalutamide ...
  • Study Participants

    362
The present study is a phase III randomized and multicentric trial evaluating the potential additional impact effect of two years adjuvant androgen deprivation when combined with neoadjuvant (4 months) and high-dose (76 Gy) conformal radiotherapy in moderate high-risk prostate cancer patients. Stratification will be performed by prognostic factors and by participating institution.
Study Started
Nov 30
2005
Primary Completion
Jun 30
2014
Study Completion
Sep 24
2020
Results Posted
Nov 04
2016
Estimate
Last Update
Nov 20
2020

Radiation Short term androgen deprivation

Minimum dose of 76 Gy (range 76-82 Gy)

Radiation Long term androgen deprivation

Minimum dose of 76 Gy (range 76-82 Gy)

Drug Short term androgen deprivation

Gosereline 3.6 mg 1 month plus 10.8 mg subcutaneously 3 months (total 4 months) Bicalutamide 50 mg tablet every day for 2 months

  • Other names: Neoadjuvant and concomitant

Drug Long term androgen deprivation

Gosereline 3.6 mg 1 month plus 10.8 mg subcutaneously 3 months (total 4 months) Bicalutamide 50 mg tablet every day for 2 months Gosereline 10.8 mg by subcutaneous injection every 3 moths for 2 years at the end of the radiotherapy

  • Other names: Neoadjuvant, concomitant and adjuvant

Long term androgen deprivation Experimental

Gosereline 3.6 mg 1 month plus 10.8 mg subcutaneously 3 months (total 4 months) Bicalutamide 50 mg tablet every day for 2 months High dose conformal radiotherapy Gosereline 10.8 mg by subcutaneous injection every 3 moths for 2 years at the end of the radiotherapy

Short term androgen deprivation Active Comparator

Gosereline 3.6 mg 1 month plus 10.8 mg subcutaneously 3 months (total 4 months) Bicalutamide 50 mg tablet every day for 2 months High dose conformal radiotherapy

Criteria

Inclusion Criteria:

Histological proven adenocarcinoma of the prostate
Stage: cT1c-3b N0M0 according to American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM)
Prostatic Specific Antigen (PSA)<100 ng/ml
Intermediate (T1-T2 with Gleason Score [GS] 7 and/or PSA 10-20)
High risk (T3 and/or GS 8-10 and/or PSA > 20)
Karnofsky Index (KI) performance status ≥70%
Written informed consent

Exclusion Criteria:

T4 N1 M1,
Previous surgical treatment (prostatectomy or cryosurgery)
Neoadjuvant hormonal treatment > 3 months.
History of pelvic radiotherapy (RT)
Contraindications for radiotherapy
Concomitant use of chemotherapy
Serious psychiatric or medical condition
Current synchronic malignancies

Summary

Long Term Androgen Deprivation

Short Term Androgen Deprivation

All Events

Event Type Organ System Event Term Long Term Androgen Deprivation Short Term Androgen Deprivation

Biochemical Disease Free Survival: Estimated Percentage of Participants With Biochemical Disease-free Survival at 5 Years

Biochemical relapse was defined as the time from inclusion in the study (randomization) until the patient meets criteria for Biochemical failure (Phoenix criteria: PSA nadir plus 2 ng/ml).

Long Term Androgen Deprivation

90.0
percentage of patients
95% Confidence Interval: 87.0 to 92.0

Short Term Androgen Deprivation

81.0
percentage of patients
95% Confidence Interval: 78.0 to 81.0

Metastasis Free Survival: Estimated Percentage of Participants With Metastasis-free Survival at 5 Years

Metastasis free survival: defined as the time from inclusion in the study (randomization) until the appearance of distant metastases: a positive result in any of the tests performed (scintigraphy, chest radiography, thorax, abdominal and pelvic CT and MRI).

Long Term Androgen Deprivation

94.0
percentage of participants
95% Confidence Interval: 92.0 to 96.0

Short Term Androgen Deprivation

83.0
percentage of participants
95% Confidence Interval: 80.0 to 86.0

Overall Survival: Estimated Percentage of Participants Alive at 5 Years

Overall Survival: defined as the time that elapses from the patient enters the study until the patient dies from any cause.

Long Term Androgen Deprivation

95.0
percentage of patients
95% Confidence Interval: 93.0 to 97.0

Short Term Androgen Deprivation

86.0
percentage of patients
95% Confidence Interval: 83.0 to 89.0

Cause-specific Survival

Cause-specific survival included all deaths from prostate cancer or treatment complications, and deaths from unknown causes in patients with either active cancer or a previously documented relapse

Long Term Androgen Deprivation

177.0
participants

Short Term Androgen Deprivation

173.0
participants

Late Toxicity

Defined as the maximal rectal, urinary and cardiovascular (CV) toxicity per patient more than 90 days after completion of RT. Scoring scales used were the radiation morbidity scoring criteria of the European Organization for Research and Treatment of Cancer-Radiation Therapy Oncology Group (EORTC/RTOG) and the Common Terminology Criteria for Adverse Events (CTCAEs) v 3.0 for the remained toxicity. CV events were defined according to the World Health Organization criteria

Long Term Androgen Deprivation

Cardiovascular

17.6
percentage of patients

Grade 2 of more rectal toxicity

11.1
percentage of patients

Grade 2 of more urinary toxicity

8.2
percentage of patients

Short Term Androgen Deprivation

Cardiovascular

7.2
percentage of patients

Grade 2 of more rectal toxicity

7.6
percentage of patients

Grade 2 of more urinary toxicity

7.3
percentage of patients

Total

355
Participants

Age, Continuous

71
Years (Median)
Full Range: 54.0 to 85.0

Positive biopsy samples (continous)

4
number of cylindres (Median)
Full Range: 1.0 to 16.0

Prostate radiotherapy dose (continous)

78.0
Grays (Gy) (Median)
Full Range: 30.6 to 88.4

PSA (continous)

11
nanogrames per milliliter (ng/mL) (Median)
Full Range: 3.1 to 72.0

Gleason score (categorical)

Pelvic radiotherapy (categorical)

Prostate radiotherapy dose (categorical)

PSA (categorical)

Risk subgroup (intermediate vs. high)

Sex: Female, Male

T stage (categorical)

Overall Study

Long Term Androgen Deprivation

Short Term Androgen Deprivation