Evidence map›Paper›PMID 22061077›Full record

Trial reportAlimentary pharmacology & therapeutics2012

Randomised clinical trial: the efficacy of prucalopride in patients with chronic intestinal pseudo-obstruction--a double-blind, placebo-controlled, cross-over, multiple n = 1 study.

A V Emmanuel, M A Kamm, A J Roy, R Kerstens, L Vandeplassche

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Alimentary pharmacology & therapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 3 pooled it
5.9field-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.

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

24 citing papers in PubMed, 3 syntheses or guidelines pooled it, 113 citations in OpenAlex.

  1. Guideline
  2. Guideline
  3. Prucalopride: For functional constipation only?Techniques in coloproctology · 2016
    Pooled it
  4. Trial
  5. Review of nutrition management of pediatric intestinal pseudo-obstruction.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2026
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Recent Advances in the Management of Severe Gastrointestinal Dysmotility.Clinical and experimental gastroenterology · 2021
    Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Review
  18. An update on prucalopride in the treatment of chronic constipation.Therapeutic advances in gastroenterology · 2017
    Review
  19. Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 3 countries.

A V EmmanuelUniversity College, London, UK.
M A Kamm
A J Roy
R Kerstens
L Vandeplassche
AZ Turnhout · BEUniversity College London · GBSt Vincent's Hospital Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic intestinal pseudo-obstruction is a disabling condition for which there are no established drug therapies. The condition is caused by a diverse range of intestinal myopathies and neuropathies.

aimTo assess the therapeutic efficacy of prucalopride, a selective high-affinity 5-HT(4) receptor agonist, we employed a multiple n = 1 study design. Each patient acted as his/her own control, each day counting as one treatment episode, allowing comparison of 168 days on each of active drug and placebo.

methodsDouble-blind, randomised, placebo-controlled, cross-over trial of four 12-week treatment periods, with 2-4 mg prucalopride or placebo daily. In each of the first and second 6 months there was a prucalopride and a placebo treatment. Patients with proven chronic intestinal pseudo-obstruction, including dilated gut, were included. Evaluation was by patient diary and global evaluation.

resultsSeven patients participated (mean 42 years, five female, median symptom duration 11 years). Three discontinued, two due to study length, and one on prucalopride due to unrelated malnutrition and bronchopneumonia. Four patients (three visceral myopathy and one visceral neuropathy) completed the study; prucalopride significantly improved pain in three of four patients, nausea in two, vomiting in one, bloating in four and analgesic intake. Bowel function was not changed substantially.

conclusionsn = 1 studies in rare conditions allow drug efficacy assessment. Prucalopride relieves symptoms in selected patients with chronic pseudo-obstruction.

Indexed as

AdultAgedBenzofuransColonic Pseudo-ObstructionCross-Over StudiesDefecationDouble-Blind MethodFemaleGastrointestinal TransitHumansMaleMiddle AgedResearch DesignSerotonin 5-HT4 Receptor AgonistsTreatment OutcomeBenzofuransprucaloprideSerotonin 5-HT4 Receptor Agonists

Identifiers

PMID22061077
PMCPMC3298655
OpenAlexW1941718541

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.