Can a nerve pain drug cut opioid use after hip surgery?
NCT ID NCT00889148
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether gabapentin, a drug for nerve pain, could reduce the need for morphine after hip replacement surgery. 103 adults received either gabapentin or a placebo before and for three days after surgery. The main goal was to see how much morphine they used, along with pain scores and side effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- gabapentin (Neurontin)
- What this could lead to
- If it works, this could offer a way to reduce opioid use and pain after hip replacement surgery.
- What could go wrong
- This is a small, completed trial with no phase designation. Results may not apply to all patients, and gabapentin can cause side effects like dizziness and sedation.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
103 people
The number who actually took part.
- Start date
-
Oct 2007
- Finished
-
Feb 2011
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
19 to 90 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * participants aged 19-90 * elective single joint, primary total hip arthroplasty * use of PCA with morphine for postoperative pain control has been discussed and agreed upon between patient and anesthetist Exclusion Criteria: * bilateral total hip arthroplasty * revision hip arthroplasty * underlying diseases 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 * participate 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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Hamilton Health Sciences
Hamilton, Ontario, L8N 3Z5, Canada
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