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Double-Blind, Multicenter, Sham Surgery Controlled Study of CERE-120 in Subjects With Idiopathic Parkinson's Disease

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Ceregene
ClinicalTrials.gov Identifier:
NCT00400634
First received: November 15, 2006
Last updated: July 6, 2012
Last verified: July 2012
Results First Received: May 24, 2012  
Study Type: Interventional
Study Design: Allocation: Randomized;   Endpoint Classification: Safety/Efficacy Study;   Intervention Model: Parallel Assignment;   Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor);   Primary Purpose: Treatment
Condition: Idiopathic Parkinson's Disease
Interventions: Genetic: CERE-120 (Adeno-Associated Virus Serotype 2 [AAV2]-Neurturin [NTN])
Procedure: Sham Surgery

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
58 subjects were recruited over a 10.5 month period at 11 centers in the US

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
CERE-120 Treatment Group Subjects who were randomized to receive bilateral intraputaminal administration of CERE-120 (5.4 x 10^11 vg)
Sham Surgery Control Group Subjects who were randomized to undergo sham surgery (partial burr holes)

Participant Flow:   Overall Study
    CERE-120 Treatment Group     Sham Surgery Control Group  
STARTED     38     20  
COMPLETED     34     19  
NOT COMPLETED     4     1  



  Baseline Characteristics


  Outcome Measures
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1.  Primary:   UPDRS Part III OFF   [ Time Frame: Change from Baseline to 12 Month Visit ]

Measure Type Primary
Measure Title UPDRS Part III OFF
Measure Description The UPDRS (Unified Parkinson's Disease Rating Scale) is a clinical rating scale that assesses the symptomatic burden of Parkinson's Disease. The scale has four main sections, and each item is scored from a 0 to a 4 (higher number is more severe manifestation). Part III is a subsection devoted to motor function, has 14 questions, resulting in a score range of 0 (unaffected) to 56 (severely affected). The scale is administered by a trained clinician, and patients were assessed in a practically defined "off" condition, 12 hours or more after the last administration of medication.
Time Frame Change from Baseline to 12 Month Visit  
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.
Subjects who completed the end-of-study visit at month 12 and had no important protocol deviations that potentially could have affected the efficacy assessment of the study drug.

Reporting Groups
  Description
CERE-120 Treatment Group Subjects who were randomized to receive bilateral intraputaminal administration of CERE-120 (5.4 x 10^11 vg)
Sham Surgery Control Group Subjects who were randomized to undergo sham surgery (partial burr holes)

Measured Values
    CERE-120 Treatment Group     Sham Surgery Control Group  
Number of Participants Analyzed  
[units: participants]
  34     19  
UPDRS Part III OFF  
[units: units on a scale]
Least Squares Mean ( 95% Confidence Interval )
  -7.21  
  ( -10.34 to -4.09 )  
  -6.91  
  ( -11.16 to -2.66 )  

No statistical analysis provided for UPDRS Part III OFF



2.  Other Pre-specified:   UPDRS Part III OFF   [ Time Frame: Change from Baseline to 18 Month Visit ]

Measure Type Other Pre-specified
Measure Title UPDRS Part III OFF
Measure Description The UPDRS (Unified Parkinson's Disease Rating Scale) is a clinical rating scale that assesses the symptomatic burden of Parkinson's Disease. The scale has four main sections, and each item is scored from a 0 to a 4 (higher number is more severe manifestation). Part III is a subsection devoted to motor function, has 14 questions, resulting in a score range of 0 (unaffected) to 56 (severely affected). The scale is administered by a trained clinician, and patients were assessed in a practically defined "off" condition, 12 hours or more after the last administration of medication.
Time Frame Change from Baseline to 18 Month Visit  
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.
Subjects who completed the 12-month double-blind posttreatment period of the study continued to undergo double-blind assessments every 3 months until the last subject had completed the end-of-study visit at month 12. The LOCF method was used to impute data at month 18 for the subjects who had blinded data through month 15.

Reporting Groups
  Description
CERE-120 Treatment Group Subjects who were randomized to receive bilateral intraputaminal administration of CERE-120 (5.4 x 10^11 vg)
Sham Surgery Control Group Subjects who were randomized to undergo sham surgery (partial burr holes)

Measured Values
    CERE-120 Treatment Group     Sham Surgery Control Group  
Number of Participants Analyzed  
[units: participants]
  19     11  
UPDRS Part III OFF  
[units: units on a scale]
Least Squares Mean ± Standard Error
  -11.96  ± -7.068     -4.34  ± -2.479  

No statistical analysis provided for UPDRS Part III OFF




  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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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
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  More Information