Carpal Tunnel SyndromePhase 3NCT01632215
Preoperative Gabapentine for Carpal Tunnel
A Phase 3 study testing Gabapentine and Sugar pill in people with Carpal Tunnel Syndrome, run by Federal University of São Paulo.
Trial summary
The purpose of this study was to evaluate the postoperative analgesic effect of preoperative gabapentine for carpal tunnel syndrome surgery. Read more about this study
- Who is it for?
- Ages 18 to 60 years
- Conditions the study is for
- Carpal Tunnel Syndrome
- What is being tested?
- Gabapentine and Sugar pill
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 40 participants
- Where
- No sites listed yet
- Study dates
- Mar 2010to Mar 2012
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 60 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- carpal tunnel syndrome
Who cannot join
- disorientation, psychiatric disease, myocardial ischemia, hypertension, arrhythmia, another pain syndrome, drug user, and pregnant
About this study
Official title: Effect of Preoperative Gabapentine for Carpal Tunnel Syndrome
The purpose of this study was to evaluate the postoperative analgesic effect of preoperative gabapentine for carpal tunnel syndrome surgery.
Read the detailed description
There was studied 40 patients. Group 1 patients received 600 mg of gabapentin 1 hour before surgery; G2 received placebo 1 hour before surgery.
Anesthesia was regional intravenous block. Postoperative analgesia when needed was with acetaminophen. If needed was administered codeine. The evaluation of neuropathic pain was made by DN4 questionnaire. Pain intensity was assessed by numeric scale at block and after 30min, 1h, 2h, 2wk, 4wk, 6m. It was noted the duration of analgesia, and the amount of acetaminophen and codeine.
The statistical program used for analysis of the results was the Instat Graph
- Conditions
- Carpal Tunnel Syndrome
- Being tested
- Gabapentine, Sugar pill
- Keywords
- gabapentine, postoperative pain
- Medical subject headings
- Carpal Tunnel Syndrome, Pain, Postoperative
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GabapentineDrug
Also called Anticonvulsant
Gabapentine 600 mg 01 dose
Sugar pillOther
Sugar pill 01 dose
| Study group | Role | What they receive |
|---|---|---|
| preoperative gabapentine, | Experimental | Gabapentine Receives: Drug: Gabapentine |
| sugar pill | Placebo comparator | Placebo group Receives: Other: Sugar pill |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pain Intensity
Numerical score from 0 to 10; zero means no pain and 10 is the more intense pain
Measured: 6 months
Secondary outcomes (1)
Chronic Pain
Numerical score from 0 to 10 scale:
Minimum value= zero (means no pain) and Maximum value= 10 (more intense pain)
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Jul 2012 (estimated)
- Study startMar 2010
- Primary completionAug 2011
- Study completionMar 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Carpal Tunnel SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Federal University of São Paulo
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Rioko Kimiko Sakata, Federal University of São Paulo
- Investigators
- Rioko K Sakata, PhD, Study director, Universidade Federal de São Paulo
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01632215
- Sponsor's protocol ID
- CEP 0223/09
- Status last verified
- Feb 2019
- First submitted
- 28 Jun 2012
- Last updated
- 5 Mar 2019
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 5 Mar 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Preoperative Gabapentine for Carpal Tunnel Syndrome
- ClinicalTrials.gov ID
- NCT01632215
- Acronym / sponsor ID
- CEP 0223/09
- Conditions
- Carpal Tunnel Syndrome
- Keywords
- gabapentine, postoperative pain
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Federal University of São PauloUniversity, hospital or other
- Study start
- Mar 2010 (actual)
- Primary completion
- Aug 2011 (actual)
- Study completion
- Mar 2012 (actual)
- First posted
- 2 Jul 2012 (estimated)
- Results
- Posted 4 Jun 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study was to evaluate the postoperative analgesic effect of preoperative gabapentine for carpal tunnel syndrome surgery.
Detailed description
There was studied 40 patients. Group 1 patients received 600 mg of gabapentin 1 hour before surgery; G2 received placebo 1 hour before surgery.
Anesthesia was regional intravenous block. Postoperative analgesia when needed was with acetaminophen. If needed was administered codeine. The evaluation of neuropathic pain was made by DN4 questionnaire. Pain intensity was assessed by numeric scale at block and after 30min, 1h, 2h, 2wk, 4wk, 6m. It was noted the duration of analgesia, and the amount of acetaminophen and codeine.
The statistical program used for analysis of the results was the Instat Graph
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| preoperative gabapentine, | Experimental | Drug: GabapentineGabapentine |
| sugar pill | Placebo comparator | Other: Sugar pillPlacebo group |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- carpal tunnel syndrome
Key exclusion criteria (1 listed)
- disorientation, psychiatric disease, myocardial ischemia, hypertension, arrhythmia, another pain syndrome, drug user, and pregnant
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| GabapentineAlso: AnticonvulsantGabapentine 600 mg 01 dose | Drug | preoperative gabapentine, |
| Sugar pillSugar pill 01 dose | Other | sugar pill |
Primary outcome
Pain Intensity
Time frame: 6 months
Numerical score from 0 to 10; zero means no pain and 10 is the more intense pain
1 secondary outcome
Chronic Pain
Time frame: 6 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Mar 2019.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Rioko K Sakata, PhD study director
Universidade Federal de São Paulo
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Gabapentine and Sugar pill in people with Carpal Tunnel Syndrome, run by Federal University of São Paulo.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 5 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 4 Jun 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pain Intensity (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Mar 2019; AzTrials last refreshed its copy on 6 Nov 2026.