Adjuvant Leuprolide With or Without Docetaxel in High Risk Prostate Cancer After Radical Prostatectomy

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Sanofi
ClinicalTrials.gov Identifier:
NCT00283062
First received: January 26, 2006
Last updated: January 25, 2012
Last verified: December 2010
Results First Received: December 16, 2011  
Study Type: Interventional
Study Design: Allocation: Randomized;   Endpoint Classification: Safety/Efficacy Study;   Intervention Model: Factorial Assignment;   Masking: Open Label;   Primary Purpose: Treatment
Condition: Prostatic Neoplasms
Interventions: Drug: Docetaxel (TAXOTERE®) Chemotherapy
Drug: Leuprolide acetate ( ELIGARD®) Hormonal Therapy

  Participant Flow
  Hide Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Originally, the study was planned for 1696 participants to be randomized. However, enrollment was not met and in September 2007, the Steering Committee decided to stop recruitment. Only participants who had signed Informed Consent by then and met eligibility criteria were randomized. 228 participants were randomized to this study.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
No text entered.

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Participant Flow:   Overall Study
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
STARTED     55     55     56     62  
ADMINISTERED STUDY TREATMENT     50     51     20     17  
COMPLETED HORMONAL THERAPY (6 Cycles)     44     48     15     13  
COMPLETED CHEMOTHERAPY (6 Cycles)     43     0 [1]   15     0 [1]
COMPLETED     43     48     15     13  
NOT COMPLETED     12     7     41     49  
Did not receive any study medication                 5                 4                 36                 45  
Adverse Event                 2                 0                 1                 0  
Lost to Follow-up                 1                 0                 1                 0  
Progressive disease                 0                 0                 1                 0  
Participant did not wish to continue                 3                 2                 1                 0  
Undefined                 0                 1                 1                 4  
chemotherapy not completed (cycle 6)                 1                 0                 0                 0  
[1] Not applicable, since participants in this arm did not receive chemotherapy.



  Baseline Characteristics
  Hide Baseline Characteristics

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.
Total Total of all reporting groups

Baseline Measures
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)     Total  
Number of Participants  
[units: participants]
  55     55     56     62     228  
Age  
[units: years]
Mean ± Standard Deviation
  61.2  ± 7.4     61.6  ± 7.0     62.1  ± 7     62.9  ± 7.5     61.9  ± 7.2  
Age, Customized  
[units: participants]
         
<65 years     37     34     35     35     141  
>=65 years     18     21     21     27     87  
Gender  
[units: participants]
         
Female     0     0     0     0     0  
Male     55     55     56     62     228  
Race/Ethnicity, Customized  
[units: participants]
         
White     48     49     43     59     199  
Black     6     3     7     2     18  
Asian/Oriental     0     1     4     0     5  
Multiracial     0     0     2     0     2  
Other     1     2     0     1     4  



  Outcome Measures
  Hide All Outcome Measures

1.  Primary:   Progression-free Survival (PFS) Assessment - Number of Participants With Disease Progression   [ Time Frame: from the date of surgery up to 3 years after randomization of the last participant ]

Measure Type Primary
Measure Title Progression-free Survival (PFS) Assessment - Number of Participants With Disease Progression
Measure Description

PFS is the interval from the date of surgery to date of progression. The date of progression was the earlier of

  • first PSA increase to ≥ 0.4 ng/mL confirmed within two weeks
  • date of the nadir, if PSA nadir did not reach < 0.4 ng/mL (for deferred arm)
  • first radiological/ histological evidence of tumor progression
  • death. Median PFS was to be estimated using Kaplan-Meier curves. However, enrollment was not met, and meaningful conclusions for efficacy or QoL could not be drawn. Median PFS could not be estimated. Reported is the number of participants with disease progression.
Time Frame from the date of surgery up to 3 years after randomization of the last participant  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Intent-to-treat (ITT) population: all randomized participants, regardless of whether or not they received any study drug.

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Measured Values
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
Number of Participants Analyzed  
[units: participants]
  55     55     56     62  
Progression-free Survival (PFS) Assessment - Number of Participants With Disease Progression  
[units: participants]
  10     14     9     8  

No statistical analysis provided for Progression-free Survival (PFS) Assessment - Number of Participants With Disease Progression



2.  Secondary:   Median Overall Survival (OS)   [ Time Frame: from the date of surgery up to 3 years after randomization of the last participant ]

Measure Type Secondary
Measure Title Median Overall Survival (OS)
Measure Description

Overall survival (OS) was the time interval from the date of surgery to the date of death due to any cause.

Median OS was to be estimated using Kaplan-Meier Curves. However, enrollment was not met, and meaningful conclusions for efficacy or QoL could not be drawn. Moreover, median OS could not be estimated. Reported is the number of participants who died from any cause.

Time Frame from the date of surgery up to 3 years after randomization of the last participant  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Intent-to-treat (ITT) population: all randomized participants, regardless of whether or not they received any drug.

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Measured Values
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
Number of Participants Analyzed  
[units: participants]
  55     55     56     62  
Median Overall Survival (OS)  
[units: participants]
  0     2     1     1  

No statistical analysis provided for Median Overall Survival (OS)



3.  Secondary:   Median Cancer-specific Survival (CSS)   [ Time Frame: from the date of surgery up to 3 years after randomization of the last participant ]

Measure Type Secondary
Measure Title Median Cancer-specific Survival (CSS)
Measure Description

The CSS was the time from the date of surgery to the date of death due to prostate cancer.

Median CSS was to be estimated using Kaplan-Meier curves. However, enrollment was not met, and meaningful conclusions for efficacy or QoL could not be drawn. Therefore, based on a protocol amendment, median CSS was not estimated.

Time Frame from the date of surgery up to 3 years after randomization of the last participant  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Based on a protocol amendment, analysis for Median CSS was not to be performed as the study was underpowered.

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Measured Values
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
Number of Participants Analyzed  
[units: participants]
  0     0     0     0  
Median Cancer-specific Survival (CSS)  
[units: participants]
               

No statistical analysis provided for Median Cancer-specific Survival (CSS)



4.  Secondary:   Median Metastasis-free Survival (MFS)   [ Time Frame: from the date of surgery up to 3 years after randomization of the last participant ]

Measure Type Secondary
Measure Title Median Metastasis-free Survival (MFS)
Measure Description

MFS was the interval from the date of surgery to the date of the first clinical evidence of metastasis after treatment initiation. Metastasis was evaluated by a physical exam or radiologically on bone scan or CT scan. Local (palpable) progression, documented histologically or by imaging techniques was considered evidence of progression.

Median MFS was to be estimated using Kaplan-Meier curves. However, enrollment was not met, and meaningful conclusions for efficacy or QoL could not be drawn. Therefore, based on a protocol amendment, median MFS was not estimated.

Time Frame from the date of surgery up to 3 years after randomization of the last participant  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Based on a protocol amendment, analysis for Median MFS was not to be performed as the study was underpowered.

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Measured Values
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
Number of Participants Analyzed  
[units: participants]
  0     0     0     0  
Median Metastasis-free Survival (MFS)  
[units: participants]
               

No statistical analysis provided for Median Metastasis-free Survival (MFS)



5.  Secondary:   To Evaluate Quality of Life (QoL) as Measured Using a Functional Assessment of Cancer Therapy-Prostate (FACT-P) Questionnaire   [ Time Frame: from 30 days before randomization (baseline) and 18 months after treatment initiation (for change from baseline) ]

Measure Type Secondary
Measure Title To Evaluate Quality of Life (QoL) as Measured Using a Functional Assessment of Cancer Therapy-Prostate (FACT-P) Questionnaire
Measure Description

The FACT-P is a 39-item participant questionnaire which assesses physical well-being (7 items), social/family well-being (7 items), emotional well-being (6 items), functional well-being (7 items), and additional prostate cancer specific concerns (12 items). All items are scored from 0 (not at all) to 4 (very much). The total FACT-P score ranges from 0-156, with higher scores representing a better QoL with fewer symptoms. A score of 156 represents the best outcome.

Note: Enrollment was not met, and meaningful conclusions for efficacy or QoL could not be drawn due to the low sample size.

Time Frame from 30 days before randomization (baseline) and 18 months after treatment initiation (for change from baseline)  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
QoL population: The subset of randomized participants who had an evaluable baseline questionnaire and at least one evaluable post-baseline questionnaire. A baseline QoL questionnaire was considered evaluable if it was filled out within 30 days prior to randomization, and no later than the date of randomization.

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Measured Values
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
Number of Participants Analyzed  
[units: participants]
  40     48     15     15  
To Evaluate Quality of Life (QoL) as Measured Using a Functional Assessment of Cancer Therapy-Prostate (FACT-P) Questionnaire  
[units: score on a scale]
Mean ± Standard Deviation
       
Baseline     124.0  ± 6.0     121.5  ± 17.8     114.7  ± 13.9     119.7  ± 15.8  
Change from Baseline (N=33, N=41, N=12, N=10)     0.7  ± 12.6     1.7  ± 17.2     6.7  ± 15.9     6.1  ± 18.9  

No statistical analysis provided for To Evaluate Quality of Life (QoL) as Measured Using a Functional Assessment of Cancer Therapy-Prostate (FACT-P) Questionnaire



6.  Secondary:   Assessment of Safety and Tolerability - Number of Participants With Adverse Events (AE)   [ Time Frame: from treatment initiation up to 19 months after treatment initiation ]

Measure Type Secondary
Measure Title Assessment of Safety and Tolerability - Number of Participants With Adverse Events (AE)
Measure Description Number of participants with treatment-emergent adverse events (TEAE). A TEAE was as any adverse event that occurred or worsened during the on-treatment period, which was the period from the day of first infusion of study treatment until 30 days after the last infusion of study treatment.
Time Frame from treatment initiation up to 19 months after treatment initiation  
Safety Issue Yes  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Safety population: all randomized participants who received any study drug

Reporting Groups
  Description
Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT) Participants administered 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Leuprolide Acetate - Immediate Treatment (I-HT) Participants administered 22.5 mg leuprolide acetate every 3 months for 18 months immediately following prostatectomy.
Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 75 mg/m^2 docetaxel every three weeks (q3w) for 6 cycles in combination with 22.5 mg leuprolide acetate every 3 months for 18 months.
Leuprolide Acetate - Deferred Treatment (D-HT) Participants in whom treatment was deferred from randomization until first progression - i.e. PSA progression and/or radiologically or histologically documented progression. Participants were treated with 22.5 mg leuprolide acetate every 3 months for 18 months.

Measured Values
    Docetaxel / Leuprolide Acetate - Immediate Treatment (I-CHT)     Leuprolide Acetate - Immediate Treatment (I-HT)     Docetaxel / Leuprolide Acetate - Deferred Treatment (D-CHT)     Leuprolide Acetate - Deferred Treatment (D-HT)  
Number of Participants Analyzed  
[units: participants]
  50     51     20     17  
Assessment of Safety and Tolerability - Number of Participants With Adverse Events (AE)  
[units: participants]
       
with any adverse event (AE)     47     48     19     14  
with any serious adverse event (SAE)     12     8     5     2  
with an SAE resulting in death     0     0     0     0  
with a drug-related AE     47     43     18     10  
with a drug-related SAE     6     0     2     0  
with AE leading to discontinue all study therapy     2     0     1     0  
with AE leading to chemotherapy discontinuation     1     NA [1]   1     NA [1]
with AE leading to chemotherapy dose reduction     5     NA [1]   2     NA [1]
[1] Did not receive chemotherapy

No statistical analysis provided for Assessment of Safety and Tolerability - Number of Participants With Adverse Events (AE)




  Serious Adverse Events


  Other Adverse Events


  More Information
  Hide More Information

Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
The agreement is:
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.


Limitations and Caveats
Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
The study had difficulties in meeting enrollment goals within a reasonable time frame. The final sample size allowed for the safety analyses but was underpowered for drawing conclusions regarding efficacy and quality of life (QoL) endpoints.  


Results Point of Contact:  
Name/Title: Trial Transparency Team
Organization: Sanofi
e-mail: Contact-Us@sanofi.com


No publications provided


Responsible Party: Sanofi
ClinicalTrials.gov Identifier: NCT00283062     History of Changes
Obsolete Identifiers: NCT00343967
Other Study ID Numbers: XRP6976J_3501, EudraCT # : 2004-002203-32
Study First Received: January 26, 2006
Results First Received: December 16, 2011
Last Updated: January 25, 2012
Health Authority: France: Afssaps - Agence française de sécurité sanitaire des produits de santé (Saint-Denis)