Evidence map›Paper›PMID 22879908›Full record

Trial reportPloS one2012

Effects of pregabalin on central sensitization in patients with chronic pancreatitis in a randomized, controlled trial.

Stefan A W Bouwense, Søren S Olesen, Asbjørn M Drewes, Jan-Werner Poley, Harry van Goor, Oliver H G Wilder-Smith

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

Trial report in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00755573 (A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Clinical and Experimental Pilot Study of Pregabalin in Patients With Chronic Pancreatitis), which is not on this map. Cited by 39 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 4 pooled it
4.9field-weighted citation impact, top 4% 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.

NCT00755573 phase2 / phase3completednot on this map

A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Clinical and Experimental Pilot Study of Pregabalin in Patients With Chronic Pancreatitis

TypeinterventionalSponsorAalborg University HospitalRan2008 to 2010Enrolled64ConditionsChronic PancreatitisArmsPregabalin, placebo
3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 4 syntheses or guidelines pooled it, 104 citations in OpenAlex.

  1. Pooled it
  2. Pregabalin for decreasing pancreatic pain in chronic pancreatitis.The Cochrane database of systematic reviews · 2016
    Pooled it
  3. Guideline
  4. Treatment options in painful chronic pancreatitis: a systematic review.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2014
    Pooled it
  5. Trial
  6. Trial
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Translational issues in precision medicine in neuropathic pain.Canadian journal of pain = Revue canadienne de la douleur · 2020
    Review
  17. Article
  18. Article
  19. Article
  20. Medical Management of Pain in Chronic Pancreatitis.Digestive diseases and sciences · 2017
    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

6 authors at 3 institutions in 2 countries.

Stefan A W BouwensePain and Nociception Neuroscience Research Group, Department of Surgery, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
Søren S Olesen
Asbjørn M Drewes
Jan-Werner Poley
Harry van Goor
Oliver H G Wilder-Smith
Radboud University Nijmegen · NLAarhus University Hospital · DKErasmus MC · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntense abdominal pain is the dominant feature of chronic pancreatitis. During the disease changes in central pain processing, e.g. central sensitization manifest as spreading hyperalgesia, can result from ongoing nociceptive input. The aim of the present study is to evaluate the effect of pregabalin on pain processing in chronic pancreatitis as assessed by quantitative sensory testing (QST).

methodsThis randomized, double-blind, placebo-controlled trial evaluated effects of pregabalin on pain processing. QST was used to quantify pain processing by measuring thresholds to painful electrical and pressure stimulation in six body dermatomes. Descending endogenous pain modulation was quantified using the conditioned pain modulation (CPM) paradigm to elicit a DNIC (diffuse noxious inhibitory controls) response. The main effect parameter was the change in the sum of all body pain threshold values after three weeks of study treatment versus baseline values between both treatment groups.

results64 patients were analyzed. No differences in change in sum of pain thresholds were present for pregabalin vs. placebo after three weeks of treatment. For individual dermatomes, change vs. baseline pain thresholds was significantly greater in pregabalin vs. placebo patients for electric pain detection threshold in C5 (P = 0.005), electric pain tolerance threshold in C5 (P = 0.04) and L1 (P = 0.05), and pressure pain tolerance threshold in T4 (P = 0.004). No differences were observed between pregabalin and placebo regarding conditioned pain modulation.

conclusionOur study provides first evidence that pregabalin has moderate inhibitory effects on central sensitization manifest as spreading hyperalgesia in chronic pancreatitis patients. These findings suggest that QST can be of clinical use for monitoring pain treatments in the context of chronic pain.

trial registrationClinicalTrials.gov NCT00755573.

Indexed as

AnalgesicsCase-Control StudiesCentral Nervous System SensitizationFemalegamma-Aminobutyric AcidHumansMaleMiddle AgedPain ThresholdPancreatitis, ChronicPlacebosPregabalinAnalgesicsgamma-Aminobutyric AcidPlacebosPregabalin

Identifiers

PMID22879908
PMCPMC3412837
OpenAlexW1980466719

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.