Evidence map›Paper›PMID 21545606›Full record

Trial reportAlimentary pharmacology & therapeutics2011

Randomised clinical trial: The ileal bile acid transporter inhibitor A3309 vs. placebo in patients with chronic idiopathic constipation--a double-blind study.

M Simrén, A Bajor, P-G Gillberg, M Rudling, H Abrahamsson

Open access · bronzeAbstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Alimentary pharmacology & therapeutics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 2% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Efficacy of elobixibat as bowel preparation agent for colonoscopy: Prospective, randomized, multi-center study.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2022
    Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Review
  10. Ileal bile acid transporter inhibitors for chronic constipation in the elderly.World journal of gastrointestinal pharmacology and therapeutics · 2026
    Article
  11. Inhibition of bile acid reabsorption as a treatment for constipation.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2025
    Article
  12. Review
  13. Review
  14. Article
  15. Contributions of bile acids to gastrointestinal physiology as receptor agonists and modifiers of ion channels.American journal of physiology. Gastrointestinal and liver physiology · 2022
    Article
  16. Review
  17. Review
  18. Article
  19. Potential of ileal bile acid transporter inhibition as a therapeutic target in Alagille syndrome and progressive familial intrahepatic cholestasis.Liver international : official journal of the International Association for the Study of the Liver · 2020
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

M SimrénDepartment of Internal Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. magnus.simren@medicine.gu.se
A Bajor
P-G Gillberg
M Rudling
H Abrahamsson
University of Gothenburg · SEAlbireo (Sweden) · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOne half of patients with constipation are not satisfied with available therapies, hence there is a need for more effective and well-tolerated drugs.

aimTo evaluate the effects of a specific inhibitor of the Ileal Bile Acid Transporter (IBAT; syn apical sodium-dependent bile acid transporter; ASBT) in patients with chronic idiopathic constipation (CIC) with focus on safety, colonic transit and efficacy signals.

methodsThis was a single-centre, prospective, randomised, double-blind, placebo-controlled study with a dose-escalating design in patients with CIC. In addition to evaluation of conventional safety and tolerability parameters, (i) colonic transit time (CTT) was measured using radio-opaque markers, (ii) metabolic parameters [lipid profile, C4 (7α-hydroxy-4-cholesten-3-one) and FGF19 (Fibroblast Growth Factor 19)] were evaluated, and (iii) constipation parameters, such as changes in stool frequency and consistency, were analysed.

resultsThirty patients were randomised into five dose-levels (range: 0.1-10 mg/day) or to placebo. All patients completed a 14-day treatment period, and the safety/tolerability analysis was favourable. A3309, present in picomolar concentrations in plasma, induced up to a three-fold increase in bile acid synthesis (C4) and a reduction of plasma FGF19, as well as reduction in total and LDL cholesterol. CTT was reduced in the highest dose groups; the main acceleration was identified in the left colon. Efficacy parameters showed trends for increased number of spontaneous bowel movements and improved stool consistency.

conclusionsIleal Bile Acid Transporter inhibition is a novel mechanism for treatment of patients with chronic idiopathic constipation and has additional benefits of improving metabolic parameters (EudraCT 2008-003255-72).

Indexed as

AdultAgedCholesterol, LDLChronic DiseaseColonConstipationDefecationDouble-Blind MethodFemaleGastrointestinal TransitHumansMaleMiddle AgedOrganic Anion Transporters, Sodium-DependentPatient SatisfactionPlacebo EffectCholesterol, LDLOrganic Anion Transporters, Sodium-Dependentsodium-bile acid cotransporterSymporters

Identifiers

PMID21545606
OpenAlexW1826937932

What OpenQuestion holds

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Registered trials

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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.