Evaluation of gabapentin as a pre-emptive analgesic for patients undergoing total hip arthroplasty

ISRCTN ISRCTN14907042
DOI https://doi.org/10.1186/ISRCTN14907042
Secondary identifying numbers N/A
Submission date
07/10/2005
Registration date
20/10/2005
Last edited
13/06/2014
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Joseph Kay
Scientific

Department of Anesthesia M3-200
Sunnybrook Health Sciences Centre
2075 Bayview Ave.
Toronto
M4N 3M5
Canada

Phone +1 416 480 4798
Email joseph.kay@utoronto.ca

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typePrevention
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific title
Study objectives1. Gabapentin administration reduces pain and opioid use postoperatively after total hip arthroplasty
2. Preoperative gabapentin is more effective than postoperative administration. This will definitively demonstrate the pre-emptive analgesic properties of gabapentin.
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedPre-emptive pain medication/postoperative pain control
InterventionThis is a prospective, randomized, double-blind, placebo-controlled study to compare total morphine consumption between the pre-emptive gabapentin, the postoperative gabapentin and the placebo groups. Patients will be randomly assigned to one of three treatment arms with 30 patients in each arm. Patients who are randomized to the preoperative gabapentin group will receive 600 mg orally (po) prior to surgery. The other two treatment arms will receive either placebo or gabapentin 600 mg 1 hour after their surgery is complete.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Gabapentin
Primary outcome measureA comparison of the means of morphine consumption among the various treatment groups will be the primary outcome measure.
Secondary outcome measures1. Visual Analog Scale (VAS) for pain will be used (0 = no pain, 100 = terrible pain)
2. Presence of nausea, vomiting, pruritis, and dizziness will be monitored at the same time intervals, and all except the latter treated as per the Acute Pain Service Nausea and Vomiting algorithm
Overall study start date01/01/2006
Completion date01/12/2006

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants90
Key inclusion criteriaUpon obtaining informed consent, patients with American Society of Anesthesiologists physical status I and II, of both genders, scheduled for hip arthroplasty will be recruited for this double-blinded, prospective, randomized, and placebo-controlled study. Patients must also be 18–70 years of age.
Key exclusion criteria1. Patients not providing informed consent
2. Patients less than 18 years of age and greater than 75 years of age
3. Known allergy to any of the medications being used
4. History of drug or alcohol abuse
5. Patients with chronic pain on slow-release preparations of opioid
6. Patients with rheumatoid arthritis
7. Patients with psychiatric disorders
8. Patients unable or unwilling to use patient-controlled analgesia
9. Diabetic patients or those with impaired renal function (creatinine >106)
10. Obese patients (i.e., body mass index [BMI] >40)
Date of first enrolment01/01/2006
Date of final enrolment01/12/2006

Locations

Countries of recruitment

  • Canada

Study participating centre

Department of Anesthesia M3-200
Toronto
M4N 3M5
Canada

Sponsor information

Sunnybrook Health Sciences Centre (Canada)
Hospital/treatment centre

Department of Anesthesia M3-200
2075 Bayview Ave.
Toronto
M4N 3M5
Canada

ROR logo "ROR" https://ror.org/03wefcv03

Funders

Funder type

Not defined

Not provided at time of registration

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/09/2009 Yes No