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Pain, PostoperativePhase 4PPPNCT02693821

Persistent Postoperative Pain Incidence With Gabapentin Used

A Phase 4 study testing Gabapentin in people with Pain, Postoperative, run by Hospital Italiano de Buenos Aires at 1 site in Argentina.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study's objective will be to evaluate the gabapentine efficiency in orally and long term used after painfully surgeries. Read more about this study

Who is it for?
Ages 21 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Pain, Postoperative
What is being tested?
Gabapentin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
122 participants
Where
1 siteArgentina
Study dates
Dec 2015to Jun 2022
Phase
Phase 4
Are there results?
None posted in the registry

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 21 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Patients that require persistent painfully surgeries such as breast surgeries (mastectomies and breast implants), herniorrhaphies (not laparoscopical) unilateral or bilateral, amputations of upper and lower limbs and chest surgeries (thoracotomy, thoracoscopy , sternotomies).
  • Patients that had already signed the informed consent.
  • Patients aged between 21 and 75.
  • ASA I - II _ III (Classification system that the American Society of Anesthesiologists (ASA) uses to estimate the anesthesiology risk that patients may suffer)
  • BMI, not more than 35 Kg/m2.

Who cannot join

  • Pregnant women
  • Patients that suffer liver and renal failure (plasma creatinine over 1.5 mg/ml or creatinine clearance less than 60 ml/min),heart failure or neurological dysfunction.
  • Diabetic patients
  • Gabapentine allergic patients

Trial locations and contacts

1 site in 1 country.

Argentina1 site
  • Sofía Konekny

    Almagro, Buenos Aires, C1199ABB

Other trials in Argentina

About this study

Official title: Persistent Postoperative Pain Incidence With Long Term Perioperative Gabapentin Used

The study's objective will be to evaluate the gabapentine efficiency in orally and long term used after painfully surgeries.

Read the detailed description

This study will be: controlled, prospective, randomized and double blind.

Its main objective will be to evaluate the pre and postoperative Gabapentin efficiency in orally doses and long term used of it in order to prevent or decrease persistent postoperative pain (PPP) in surgeries with high incidence of it (Pain). Patients will be randomly divided in two branches; one of them will take 600 mg of Gabapentin twice a day and the other group will take Placebo (twice a day also).

Both groups of patients will have to take one pill the day before the surgery (300 mg) and other pill on the surgery day (300mg). After that, the patients will have to continue this treatment during 30 days (two doses per day of Gabapentin or placebo).

After the surgery and after taking the second pill, it will be evaluated:

postoperative sharp pain, sickness, vomiting, sedation and adverse effects.

Patients will be evaluated in the pain treatment office (consulting room) the following times:

  1. 30 days after the surgery. (taking drugs suspended)
  2. 3 month after the surgery.
  3. 6 months after the surgery.
  4. 12 months after the surgery

This monitoring treatment will be done in order to evaluate the presence or absence of persistent postoperative pain (PPP).

Being tested
Gabapentin, Placebo
Keywords
Gabapentin, prevention, incidence
Medical subject headings
Pain, Postoperative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • GabapentinDrug

    gabapentin 300 mg per day, orally during 30 days

  • PlaceboDrug

    Placebo 300 mg per day, orally during 30 days

Study groups in NCT02693821
Study groupRoleWhat they receive
GabapentinExperimental300mg of Gabapentin per day (two doses), orally during 30 days
Receives: Drug: Gabapentin
PlaceboPlacebo comparator300mg of Placebo per day (two doses), orally during 30 days
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Prevalence of pain after using gabapentin.

    It will be used a 10cm ruler which will allows the patients indicates how much pain they are feeling at the moment, where 0 is no pain at all and 10 is the maximum imaginable pain.

    Measured: Two years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Feb 2016 (estimated)
  2. Study startDec 2015
  3. Primary completionJan 2016
  4. Study completionJun 2022

Resources

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 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
Estudio Controlado, randomizado, prospectivo y ciego.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
122 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02693821
Sponsor's protocol ID
2575
Acronym
PPP
Status last verified
Feb 2023
First submitted
19 Feb 2016
Last updated
6 Feb 2023
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Kehlet H, Jensen TS, Woolf CJ. Persistent postsurgical pain: risk factors and prevention. Lancet. 2006 May 13;367(9522):1618-25. doi: 10.1016/S0140-6736(06)68700-X.

    PubMed 16698416
  • Macrae WA. Chronic post-surgical pain: 10 years on. Br J Anaesth. 2008 Jul;101(1):77-86. doi: 10.1093/bja/aen099. Epub 2008 Apr 22.

    PubMed 18434337
  • Werner MU, Kongsgaard UE. I. Defining persistent post-surgical pain: is an update required? Br J Anaesth. 2014 Jul;113(1):1-4. doi: 10.1093/bja/aeu012. Epub 2014 Feb 18. No abstract available.

    PubMed 24554546
  • Borsook D, Kussman BD, George E, Becerra LR, Burke DW. Surgically induced neuropathic pain: understanding the perioperative process. Ann Surg. 2013 Mar;257(3):403-12. doi: 10.1097/SLA.0b013e3182701a7b.

    PubMed 23059501
  • Crombie IK, Davies HT, Macrae WA. Cut and thrust: antecedent surgery and trauma among patients attending a chronic pain clinic. Pain. 1998 May;76(1-2):167-71.

    PubMed 9696470
  • Gartner R, Jensen MB, Nielsen J, Ewertz M, Kroman N, Kehlet H. Prevalence of and factors associated with persistent pain following breast cancer surgery. JAMA. 2009 Nov 11;302(18):1985-92. doi: 10.1001/jama.2009.1568.

    PubMed 19903919
  • Gilron I, Watson CP, Cahill CM, Moulin DE. Neuropathic pain: a practical guide for the clinician. CMAJ. 2006 Aug 1;175(3):265-75. doi: 10.1503/cmaj.060146.

    PubMed 16880448
  • Matthews EA, Dickenson AH. Effects of spinally delivered N- and P-type voltage-dependent calcium channel antagonists on dorsal horn neuronal responses in a rat model of neuropathy. Pain. 2001 May;92(1-2):235-46. doi: 10.1016/s0304-3959(01)00255-x.

    PubMed 11323145
  • Schmader KE. Epidemiology and impact on quality of life of postherpetic neuralgia and painful diabetic neuropathy. Clin J Pain. 2002 Nov-Dec;18(6):350-4. doi: 10.1097/00002508-200211000-00002.

    PubMed 12441828
  • Bouhassira D, Attal N, Alchaar H, Boureau F, Brochet B, Bruxelle J, Cunin G, Fermanian J, Ginies P, Grun-Overdyking A, Jafari-Schluep H, Lanteri-Minet M, Laurent B, Mick G, Serrie A, Valade D, Vicaut E. Comparison of pain syndromes associated with nervous or somatic lesions and development of a new neuropathic pain diagnostic questionnaire (DN4). Pain. 2005 Mar;114(1-2):29-36. doi: 10.1016/j.pain.2004.12.010. Epub 2005 Jan 26.

    PubMed 15733628
  • Backonja MM, Galer BS. Pain assessment and evaluation of patients who have neuropathic pain. Neurol Clin. 1998 Nov;16(4):775-90. doi: 10.1016/s0733-8619(05)70097-9.

    PubMed 9767062
  • Lavand'homme P. From preemptive to preventive analgesia: time to reconsider the role of perioperative peripheral nerve blocks? Reg Anesth Pain Med. 2011 Jan-Feb;36(1):4-6. doi: 10.1097/AAP.0b013e31820305b8. No abstract available.

    PubMed 21455081
  • Rosner H, Rubin L, Kestenbaum A. Gabapentin adjunctive therapy in neuropathic pain states. Clin J Pain. 1996 Mar;12(1):56-8. doi: 10.1097/00002508-199603000-00010.

    PubMed 8722736
  • Dauri M, Faria S, Gatti A, Celidonio L, Carpenedo R, Sabato AF. Gabapentin and pregabalin for the acute post-operative pain management. A systematic-narrative review of the recent clinical evidences. Curr Drug Targets. 2009 Aug;10(8):716-33. doi: 10.2174/138945009788982513.

    PubMed 19702520
  • Miller A, Price G. Gabapentin toxicity in renal failure: the importance of dose adjustment. Pain Med. 2009 Jan;10(1):190-2. doi: 10.1111/j.1526-4637.2008.00492.x. Epub 2008 Aug 18.

    PubMed 18721173

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Gabapentin in people with Pain, Postoperative, run by Hospital Italiano de Buenos Aires at 1 site in Argentina.

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 5 inclusion and 4 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 6 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Argentina. Whether a site is taking part right now should be confirmed with that site. See every site.

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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Prevalence of pain after using gabapentin. (time frame: Two years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02693821, which also lists 15 linked publications.

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 6 Feb 2023.

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PPP Clinical Trial NCT02693821 | AzTrials