Evidence map›Paper›PMID 20163921›Full record

Trial reportDrug and alcohol dependence2010

Gabapentin improves cold-pressor pain responses in methadone-maintained patients.

Peggy Compton, Priscilla Kehoe, Karabi Sinha, Matt A Torrington, Walter Ling

Registry-linked trialOpen access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Drug and alcohol dependence, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01821430 (Opioid-Induced Hyperalgesia in Prescription Opioid Abusers), which is not on this map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT01821430 phase2terminatednot on this mapstarted 2013, after this paper: background citation

Opioid-Induced Hyperalgesia in Prescription Opioid Abusers: Effects of Pregabalin

TypeinterventionalSponsorGeorgetown UniversityRan2013 to 2016Enrolled4ConditionsChronic PainArmsPregabalin, Placebo
3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
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  5. Impact of co-administration of oxycodone and smoked cannabis on analgesia and abuse liability.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Peggy ComptonSchool of Nursing, University of California, Los Angeles, CA 90095, United States. pcompton@sonnet.ucla.edu
Priscilla Kehoe
Karabi Sinha
Matt A Torrington
Walter Ling
University of California, Los Angeles · USOASIS Clinic · US

Funding

Hyperalgesia in Methadone Patients: Can it be Treated?R01DA015463 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI COMPTON, MARGARET A · 2002 to 2007
$2.5M
NIDA NIH HHS R01 DA015463
6 · The paper itself

Abstract

Individuals on methadone maintenance for the treatment of addiction (MM) are demonstrated to be hyperalgesic to cold-pressor pain in comparison to matched controls and ex-opioid addicts, a finding described as clinical evidence of opioid-induced hyperalgesia (OIH). Interestingly, opioids induce hyperalgesia via many of the same neuro-inflammatory and central sensitization processes that occur with the development of neuropathic pain. Evaluated in this study was the efficacy of a key pharmacotherapy for neuropathic pain, gabapentin (GPN), to reverse OIH in MM patients. Utilizing a clinical trial design and double blind conditions, changes in cold-pressor pain threshold and tolerance following a 5-week trial of GPN (titrated to 2400mg/day) were evaluated at peak and trough methadone plasma levels in a well-characterized MM sample. Drug abstinence was encouraged via an escalating payment schedule, and compliance monitored via pill counts and GPN plasma levels; entered into the analyses were only those subjects compliant and abstinent throughout the study (approximately 45%). Utilizing change scores from baseline, significant improvements in cold-pressor pain threshold and pain tolerance were observed at both peak and trough methadone levels (p<0.05). Notably, drop-out rates due to medication side effects were low (2%) and the medication was well-tolerated. These results support that GPN, as prescribed for the treatment of neuropathic pain, is effective in decreasing OIH in patients who are abstinent and stable in methadone treatment.

Indexed as

AdultAminesAnalgesics, Non-NarcoticCold TemperatureCyclohexanecarboxylic AcidsDouble-Blind MethodFemaleGabapentingamma-Aminobutyric AcidHumansHyperalgesiaMaleMethadoneMiddle AgedNarcoticsOpioid-Related DisordersAminesAnalgesics, Non-NarcoticCyclohexanecarboxylic AcidsGabapentingamma-Aminobutyric AcidMethadoneNarcotics

Identifiers

PMID20163921
PMCPMC2875370
OpenAlexW2078554295

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.