Evidence map›Paper›PMID 30365922›Full record

Trial reportAmerican journal of obstetrics and gynecology2019

Effect of gabapentin on sexual function in vulvodynia: a randomized, placebo-controlled trial.

Gloria A Bachmann, Candace S Brown, Nancy A Phillips, Leslie A Rawlinson, Xinhua Yu, Ronald Wood, David C Foster, Gabapentin Study Group

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in American journal of obstetrics and gynecology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Vulvodynia (chronic vulval pain).BMJ (Clinical research ed.) · 2026
    Article
  4. Article
  5. Predictors of sexual satisfaction among patients with chronic pain.Frontiers in pain research (Lausanne, Switzerland) · 2024
    Article
  6. Article
  7. Review
  8. Evaluation and Treatment of Vulvodynia: State of the Science.Journal of midwifery & women's health · 2023
    Review
  9. Pharmacological Treatments for Localized Provoked Vulvodynia: A Scoping Review.International journal of sexual health : official journal of the World Association for Sexual Health · 2023
    Article
  10. Article
  11. Vulvodynia: Pain Management Strategies.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
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

8 authors at 5 institutions in 1 country.

Gloria A BachmannDepartment of Obstetrics, Gynecology and Reproductive Sciences, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ.
Candace S BrownDepartment of Clinical and Translational Sciences, University of Tennessee Health Science Center, Memphis, TN.
Nancy A PhillipsDepartment of Obstetrics, Gynecology and Reproductive Sciences, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ. Electronic address: phillina@rutgers.edu.
Leslie A RawlinsonDepartment of Clinical and Translational Sciences, University of Tennessee Health Science Center, Memphis, TN.
Xinhua YuSchool of Public Health, Division of Epidemiology, Biostatistics & Environmental Health, University of Memphis, Memphis, TN.
Ronald WoodDepartment of Obstetrics and Gynecology, University of Rochester School of Medicine and Dentistry, Rochester, NJ.
David C FosterDepartment of Obstetrics and Gynecology, University of Rochester School of Medicine and Dentistry, Rochester, NJ.
Gabapentin Study Group
Rutgers, The State University of New Jersey · USUniversity of Rochester · USTranslational Sciences (United States) · USUniversity of Memphis · USUniversity of Tennessee Health Science Center · US

Funding

A Controlled Trial of Gabapentin in Vulvodynia: Biological Correlates of ResponseR01HD065740 · NICHD · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI BACHMANN, GLORIA A, BROWN, CANDACE S · 2011 to 2014
$2.5M
NICHD NIH HHS R01 HD065740
6 · The paper itself

Abstract

backgroundSexual dysfunction is common in women with vulvodynia.

objectiveThe purpose of this study was (1) to evaluate whether extended-release gabapentin is more effective than placebo in improving sexual function in women with provoked vulvodynia and whether there is a relationship between treatment outcome and pelvic pain muscle severity that is evaluated by palpation with standardized applied pressure and (2) to evaluate whether sexual function in women with provoked vulvodynia would approach that of control subjects who report no vulvar pain either before or after treatment. STUDY

designAs a secondary outcome in a multicenter double-blind, randomized crossover trial, sexual function that was measured by the Female Sexual Function Index was evaluated with gabapentin (1200-3000 mg/d) compared with placebo. Pain-free control subjects, matched by age and race, also completed Female Sexual Function Index for comparison.

resultsFrom August 2012 to January 2016, 230 women were screened at 3 academic institutions, and 89 women were assigned randomly to treatment. Gabapentin was more effective than placebo in improving overall sexual function (adjusted mean difference, 1.3; 95% confidence interval, 0.4-2.2; P=.008), which included desire (mean difference, 0.2; 95% confidence interval, 0.0-3.3; P=.04), arousal (mean difference, 0.3; 95% confidence interval, 0.1-0.5; P=.004), and satisfaction (mean difference, 0.3; 95% confidence interval, 0.04-0.5; P=.02); however, sexual function remained significantly lower than in 56 matched vulvodynia pain-free control subjects. There was a moderate treatment effect among participants with baseline pelvic muscle pain severity scores above the median on the full Female Sexual Function Index scale (mean difference, 1.6; 95% confidence interval, 0.3-2.8; P=.02) and arousal (mean difference, 0.3; 95% confidence interval, 0.1-0.6; P=.01) and pain domains (mean difference, 0.4; 95% confidence interval, 0.02-0.9; P=.04).

conclusionGabapentin improved sexual function in this group of women with provoked vulvodynia, although overall sexual function remained lower than women without the disorder. The most statistically significant increase was in the arousal domain of the Female Sexual Function Index that suggested a central mechanism of response. Women with median algometer pain scores >5 improved sexual function overall, but the improvement was more frequent than the pain domain. We hypothesize that gabapentin may be effective as a pharmacologic treatment for those women with provoked vulvodynia and increased pelvic muscle pain on examination.

Indexed as

Pain MeasurementAdultConfidence IntervalsCross-Over StudiesDelayed-Action PreparationsDouble-Blind MethodFemaleGabapentinHumansMiddle AgedPatient SatisfactionPelvic FloorPrognosisReference ValuesRisk AssessmentSeverity of Illness IndexDelayed-Action PreparationsGabapentingabapentinpelvic floorsexual functionvulvodynia

Identifiers

PMID30365922
PMCPMC6310649
OpenAlexW2898541178

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.