Morphine Consumption in Joint Replacement Patients, With or Without Gabapentin Treatment

NCT ID: NCT01307202

Last Updated: 2014-11-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

101 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-10-31

Study Completion Date

2011-02-28

Brief Summary

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Total knee arthroplasty is amongst the most painful procedures postoperatively, and pain management can be a challenge. Different measures have been introduced to manage severe postoperative pain int hese patients. Previous studies have investigated gabapentin in acute postoperative pain and demonstrated reducted pain, postoperative morphine consumption, morphine related side effects, and postoperative pain scores. To date, this analgesia adjunct has yet to be investigated in total joint arthroplasty patients.

Detailed Description

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The study was submitted to Health Canada and received the letter of no objection. A randomized, double-blind, placebo-controlled study. The randomization scheme will be prepared and will be done by the pharmacy department at McMaster University. Ninety patients undergoing primary knee arthroplasty will be recruited from the preoperative clinic. Forty-five patients in each population will be allocated to a gabapentin group and the other forty-five to a placebo group.

Conditions

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Post Operative Pain Total Knee Replacement

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Gabapentin

Gabapentin 600 mg will be given per oral two hours preoperatively and 200 mg three times daily after surgery (600 mg/day).

Group Type EXPERIMENTAL

Gabapentin

Intervention Type DRUG

600mg of Gabapentin will be given orally preoperatively and 200mg for 3 times a day after surgery for 3 days

Placebo

Placebo will match the the gabapentin pill and will be given orally.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo will match the the gabapentin pill and will be given orally.

Interventions

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Gabapentin

600mg of Gabapentin will be given orally preoperatively and 200mg for 3 times a day after surgery for 3 days

Intervention Type DRUG

Placebo

Placebo will match the the gabapentin pill and will be given orally.

Intervention Type DRUG

Other Intervention Names

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Neurontin Sugar pill

Eligibility Criteria

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Inclusion Criteria

* participants aged 19-90
* elective single joint, primary total knee arthroplasty
* use of PCA with morphine for postoperative pain control has been discussed and agreed upon between patient and anesthetist

Exclusion Criteria

* bilateral total knee arthroplasty
* revision knee arthroplasty
* underlying disease of epilepsy, seizure, or chronic pain syndrome
* active gastrointestinal bleeding within the last 6 months
* history of non-steroidal anti-inflammatory drug (NSAID) induced asthma
* known or suspected history of drug or alcohol abuse
* participant currently takes gabapentin or pregabalin for any reason
* participant currently takes pain medication that is more potency than codeine or oxycodone (morphine, hydromorphone, meperidine, methadone, fentanyl, including any long acting narcotics)
* known allergy to study medications: gabapentin, morphine, NSAID, acetaminophen
* unable to tolerate morphine
* liver impairments
* kidney impairment or calculated creatinine clearance by Cockcroft-Gault formula is \<=60ml/min
* pregnancy or breast-feeding
* participant currently receives associated worker's compensation benefits (WSIB)
* participant unable or unwilling to give written or informed consent
* unable to use PCA
Minimum Eligible Age

19 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hamilton Health Sciences Corporation

OTHER

Sponsor Role collaborator

McMaster University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Manyat Nantha-Aree, MD

Role: PRINCIPAL_INVESTIGATOR

Hamilton Health Sciences Corporation

Locations

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Hamilton Health Sciences

Hamilton, Ontario, Canada

Site Status

Countries

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Canada

References

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Paul JE, Nantha-Aree M, Buckley N, Shahzad U, Cheng J, Thabane L, Tidy A, DeBeer J, Winemaker M, Wismer D, Punthakee D, Avram V. Randomized controlled trial of gabapentin as an adjunct to perioperative analgesia in total hip arthroplasty patients. Can J Anaesth. 2015 May;62(5):476-84. doi: 10.1007/s12630-014-0310-y. Epub 2015 Mar 14.

Reference Type DERIVED
PMID: 25772701 (View on PubMed)

Paul JE, Nantha-Aree M, Buckley N, Cheng J, Thabane L, Tidy A, DeBeer J, Winemaker M, Wismer D, Punthakee D, Avram V. Gabapentin does not improve multimodal analgesia outcomes for total knee arthroplasty: a randomized controlled trial. Can J Anaesth. 2013 May;60(5):423-31. doi: 10.1007/s12630-013-9902-1. Epub 2013 Mar 12.

Reference Type DERIVED
PMID: 23479393 (View on PubMed)

Other Identifiers

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07-215-TKR

Identifier Type: -

Identifier Source: org_study_id