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An Assessment of P-15 Bone Putty in Anterior Cervical Fusion With Instrumentation

This study is ongoing, but not recruiting participants.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00310440
First Posted: April 4, 2006
Last Update Posted: August 29, 2017
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.
Information provided by (Responsible Party):
CeraPedics, Inc
Results First Submitted: December 10, 2015  
Study Type: Interventional
Study Design: Allocation: Randomized;   Intervention Model: Parallel Assignment;   Masking: Single (Participant);   Primary Purpose: Treatment
Condition: Intervertebral Disk Degeneration
Interventions: Device: P-15 Synthetic osteoconductive bone substitute
Other: Autologous bone

  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
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Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
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Reporting Groups
  Description
Bone Graft Substitute

Subjects will receive anterior cervical discectomy with fusion and instrumentation (anterior plate). Structural allograft ring will be used. The cavity of the ring will be filled with P-15 synthetic osteoconductive bone substitute (investigational device).

P-15 Synthetic osteoconductive bone substitute: Safety and efficacy of synthetic bone substitute used for fusion in spinal surgery

Autologous Bone

Subjects will receive anterior cervical discectomy with fusion and instrumentation (anterior plate). Structural allograft ring will be used. The cavity of the ring will be filled with local autologous bone.

Autologous bone: Local autologous bone will be harvested, milled and placed into the cavity of the structural allograft ring


Participant Flow:   Overall Study
    Bone Graft Substitute   Autologous Bone
STARTED   165   154 
COMPLETED   139   141 
NOT COMPLETED   26   13 
Lost to Follow-up                17                8 
Withdrawal by Subject                2                1 
Missed 12 Month Visit                7                4 



  Baseline Characteristics
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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.
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Reporting Groups
  Description
Bone Graft Substitute

Subjects will receive anterior cervical discectomy with fusion and instrumentation (anterior plate). Structural allograft ring will be used. The cavity of the ring will be filled with P-15 synthetic osteoconductive bone substitute (investigational device).

P-15 Synthetic osteoconductive bone substitute: Safety and efficacy of synthetic bone substitute used for fusion in spinal surgery

Autologous Bone

Subjects will receive anterior cervical discectomy with fusion and instrumentation (anterior plate). Structural allograft ring will be used. The cavity of the ring will be filled with local autologous bone.

Autologous bone: Local autologous bone will be harvested, milled and placed into the cavity of the structural allograft ring

Total Total of all reporting groups

Baseline Measures
   Bone Graft Substitute   Autologous Bone   Total 
Overall Participants Analyzed 
[Units: Participants]
 165   154   319 
Age 
[Units: Years]
Mean (Standard Deviation)
 47.7  (9.7)   45.7  (9.4)   46.8  (9.6) 
Sex: Female, Male 
[Units: Participants]
Count of Participants
     
Female      95  57.6%      97  63.0%      192  60.2% 
Male      70  42.4%      57  37.0%      127  39.8% 
Ethnicity (NIH/OMB) 
[Units: Participants]
Count of Participants
     
Hispanic or Latino      7   4.2%      4   2.6%      11   3.4% 
Not Hispanic or Latino      157  95.2%      150  97.4%      307  96.2% 
Unknown or Not Reported      1   0.6%      0   0.0%      1   0.3% 
Race (NIH/OMB) 
[Units: Participants]
Count of Participants
     
American Indian or Alaska Native      1   0.6%      0   0.0%      1   0.3% 
Asian      4   2.4%      1   0.6%      5   1.6% 
Native Hawaiian or Other Pacific Islander      0   0.0%      0   0.0%      0   0.0% 
Black or African American      5   3.0%      6   3.9%      11   3.4% 
White      151  91.5%      144  93.5%      295  92.5% 
More than one race      0   0.0%      0   0.0%      0   0.0% 
Unknown or Not Reported      4   2.4%      3   1.9%      7   2.2% 
Region of Enrollment 
[Units: Participants]
     
Canada   29   26   55 
United States   136   128   264 


  Outcome Measures
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1.  Primary:   Radiologic Fusion   [ Time Frame: 12 months ]

2.  Primary:   Change in of the Overall Neck Disability Index (NDI) Score From Baseline.   [ Time Frame: 12 months ]

3.  Primary:   Neurologic Success   [ Time Frame: 12 months ]

4.  Primary:   Complications   [ Time Frame: 12 months ]

5.  Secondary:   Mean Change in Pain at Neck Visual Analog Scale (VAS).   [ Time Frame: Baseline and 12 months ]

6.  Secondary:   Mean Change at Pain at Arm and Shoulder Visual Analog Scale (VAS).   [ Time Frame: Baseline and 12 months ]

7.  Secondary:   Success Rates Measured by Aggregated Modified Odom's Criteria   [ Time Frame: 12 months ]

8.  Secondary:   Mean Change in the Short Form 36 v2 (SF-36v2) Physical Composite Score (PCS).   [ Time Frame: Baseline and 12 months ]

9.  Secondary:   Mean Change in the Short Form 36 v2 (SF-36v2) Mental Health Composite Score (MCS).   [ Time Frame: Baseline and 12 months ]

10.  Secondary:   Kyphosis   [ Time Frame: 12 months ]


  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
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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 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.
unchecked Other disclosure agreement that restricts the right of the PI to discuss or publish trial results after the trial is completed.


Results Point of Contact:  
Name/Title: Lead Clinical Research Associate
Organization: Nor Consult, LLC
phone: 2066076861
e-mail: p15@nor-consult.com



Responsible Party: CeraPedics, Inc
ClinicalTrials.gov Identifier: NCT00310440     History of Changes
Other Study ID Numbers: 1003
First Submitted: April 3, 2006
First Posted: April 4, 2006
Results First Submitted: December 10, 2015
Results First Posted: February 10, 2016
Last Update Posted: August 29, 2017