Enterosgel® in the treatment of functional abdominal pain in children and young people

ISRCTN ISRCTN16474818
DOI https://doi.org/10.1186/ISRCTN16474818
IRAS number 356725
Secondary identifying numbers ENT08UK
Submission date
07/04/2025
Registration date
21/05/2025
Last edited
21/05/2025
Recruitment status
Not yet recruiting
Overall study status
Ongoing
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Functional Abdominal Pain has become more common in children and young people. These are defined as “Functional Abdominal Pain Disorders” and include Functional Dyspepsia, Irritable Bowel Syndrome, Abdominal Migraine and Functional Abdominal Pain Not Otherwise Specified. There is no cure for these conditions and an important part of management aims to reduce symptoms and improve quality of life.
Enterosgel® is an intestinal adsorbent taken by mouth that binds bacterial toxins, and harmful substances in the gut. In the UK it is used for the treatment of acute diarrhoea and irritable bowel syndrome with diarrhoea, in people of all ages. It has been shown to reduce diarrhoea and improve abdominal pain and other gut symptoms. Enterosgel® is classified as a medical device class II (not as a medicine) because it is not adsorbed by the body and is excreted in the stools. Enterosgel® is available over the counter or on prescription as a gel in a tube or sachet and has no taste.
A recent study suggests that Enterosgel® can improve abdominal pain and diarrhoea in patients with irritable bowel syndrome. However, a study is needed to investigate the potential benefits of Enterosgel® in the treatment of Functional Abdominal Pain Disorders in children.

Who can participate?
This study aims to recruit 154 children and young people (age 3-18yrs) to see whether or not Enterosgel® may help with Functional Abdominal Pain.

What does the study involve?
The goal is to investigate whether children can take Enterosgel® and measure if they experience a reduction in their pain symptoms and improvement in their quality of life. The study lasts for 10 weeks and has a baseline phase to collect data on symptoms (2weeks), a double-blind phase where children will take placebo or Enterosgel® (4 weeks), followed by an open label phase where all children will take Enterosgel® for 4 weeks.

What are the possible benefits and risks of participating?
The study may benefit children and young people in helping to relieve their abdominal pain and improve their quality of life. The possible risks are very low, as Enterosgel® has clinical evidence of safety and efficacy of use in this age group and for a similar condition.

Where is the study run from?
Alder Hey Children's NHS Foundation Trust and Bristol Royal Hospital for Children (UK).

When is the study starting and how long is it expected to run for?
April 2025 to February 2027

Who is funding the study?
Bioline Products s.r.o.

Who is the main contact?
Dr Carol Howell, Trial manager, research@enteromed.co.uk

Contact information

Dr Carol Howell
Public, Scientific

Enteromed Ltd, 85 Great Portland St, First Floor
London
W1W 7LT
United Kingdom

ORCiD logoORCID ID 0000-0001-5713-6177
Phone +447596887046
Email research@enteromed.co.uk
Prof Stephen Allen
Principal Investigator

Department of Clinical Sciences, Liverpool School of Tropical Medicine
Liverpool
L3 5QA
United Kingdom

ORCiD logoORCID ID 0000-0001-6675-249X
Phone +44 7584 200611
Email stephen.allen@lstmed.ac.uk

Study information

Study designMulticentre interventional double-blinded randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital, Internet/virtual
Study typeQuality of life, Treatment, Safety, Efficacy
Participant information sheet Not available in web format, please use contact details to request a participant information sheet.
Scientific titleRandomised, placebo-controlled study to assess the safety and efficacy of ENterosgel® in the Treatment Of functional abdominal Pain In Children and young people
Study acronymENTOPIC
Study hypothesisEnterosgel reduces abdominal pain more than placebo in children and young people with Functional abdominal pain disorders.
Ethics approval(s)

Not yet submitted, Ethics committee name not provided (Address not provided, City not provided, Zip/postal code not provided; Telephone number not provided), ref: Reference number not provided

ConditionTreatment of abdominal pain in children and young people with Functional abdominal pain disorders.
InterventionThe intervention is Enterosgel® an intestinal adsorbent classified as a medical device class IIA since 2011 in Europe. Currently indicated for symptomatic treatment of acute diarrhoea and irritable bowel syndrome with diarrhoea (IBS-D), available and an OTC and on prescription in the UK.

Enterosgel® is a tasteless gel that is mixed in water and taken orally. The dose is age dependent as per the Instructions for use.

During the double-blind phase (4 weeks) patients will be randomised 1:1 to receive Enterosgel® or placebo, pre-mixed in water and dispensed in tubes ready to drink. During the open label phase Enterosgel® will be dispensed in tubes as a gel, ready to measure and then mix in water. This is followed by the 4 week open label phase for all participants allocated Enterosgel intervention. At the end of this phase participants return to standard care.

Randomisation will be using a computer-based randomisation tool (Red Pill) within the eCRF (Sealed Envelope Ltd, UK), accessible once the eligibility criteria are confirmed.
Intervention typeDevice
Pharmaceutical study type(s)Dose response
PhasePhase II/III
Drug / device / biological / vaccine name(s)Enterosgel®
Primary outcome measureComparison of the change in mean daily Wong-Baker FACES Pain Rating Scale (limited to abdominal pain) during weeks 1-2 (initial observation phase) and the double-blind phase (week 3-6) recorded in the daily diary in the Enterosgel® versus the placebo arm
Secondary outcome measuresComparison of the Enterosgel® versus the placebo arm during the double-blind treatment phase and open-label treatment phase:
1. mean daily Wong-Baker FACES Pain Rating Scale recorded in the daily diary
2. The proportion of days with any abdominal pain
3. The proportion of days missed nursery/school
4. Change in the Stomach Pain and Hurt total score (comprised of 6 items) of the PedsQL 3.0 GIS module (parent/carer proxy-report for 3-4-year-olds and child self-report from 5-18 years; by parent/carer proxy-report for 3-18-year-olds)
5. Change in other individual components of the PedsQL 3.0 GIS module (parent/carer proxy-report for 3-4-year-olds and child self-report from 5-18 years; by parent/carer proxy-report for 3-18 years olds): stomach discomfort when eating (5 items), food and drink limits (6), trouble swallowing (3), heartburn and reflux (4), nausea and vomiting (4), gas and bloating (7), constipation (14), blood in bowel movement (2), diarrhoea (7), worry about bowel movements (5), medicines (4), communication (5).
6. Change in total PedsQL 3.0 GIS module score (parent/carer proxy-report for 3-4-year-olds and child self-report from 5-18 years; by parent/carer proxy-report for 3-18 years olds)
7. Change in health-related quality of life KIDSCREEN-27 questionnaire for children 8-18 years (child report and parent/carer proxy-report)
8. Acceptability of the study interventions (daily diary)
9. Adverse Events
Overall study start date08/04/2025
Overall study end date01/02/2027

Eligibility

Participant type(s)Patient
Age groupChild
Lower age limit3 Years
Upper age limit18 Years
SexBoth
Target number of participants154
Participant inclusion criteria1. Written informed consent
2. Children aged 3-18 years (parent/carer available to provide proxy-report and/or parent/carer report) with a clinical diagnosis of FAPD (Group H2) according to the Rome IV criteria
3. Normal faecal calprotectin at FAPD diagnosis (≤250 ug/g stool age 3-8 yrs, ≤100 ug/g stool age 9-18 yrs)
4. Considered suitable to take part in the study by the consenting investigator
5. Diary completed on at least 11 days (≥75%) during the observational period
6. Able to complete questionnaires in English
7. Able to complete e-diary and questionnaires on-line
Participant exclusion criteria1. Previously diagnosed coeliac disease, inflammatory bowel disease or other significant gastro-intestinal disorder
2. Average number of stools per week <3
3. Previous use of Enterosgel®
4. Use of antidepressant agents, unless used at a stable dose for at least 6 weeks
5. Use of any probiotic supplements, other intestinal adsorbents, slow-release medications or strong opioids
6. Participation in any research where treatment is provided in the last three months
7. Pregnancy or not willing to use contraception for the duration of the study in females of childbearing potential defined as any female over 11 years of age and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or is not postmenopausal
Recruitment start date01/09/2025
Recruitment end date31/08/2026

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

Alder Hey Children's NHS Foundation Trust
Eaton Road
Liverpool
L12 2AP
United Kingdom
Bristol Royal Hospital for Children
Upper Maudlin Street
Bristol
BS2 8BJ
United Kingdom

Sponsor information

Enteromed Ltd
Industry

85 Great Portland St, First Floor
London
W1W 7LT
England
United Kingdom

Phone +447860817365
Email research@enteromed.co.uk
Website https://enteromed.co.uk/

Funders

Funder type

Industry

Bioline Products s.r.o.

No information available

Results and Publications

Intention to publish date01/04/2027
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be available on request from Dr Carol Howell email; research@enteromed.co.uk

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file version 1.0 07/05/2025 19/05/2025 No No

Additional files

47154 PROTOCOL ENT08UK_Clinical Investigation Plan_v1.0_07MAY25_APPENDICIES.pdf

Editorial Notes

21/05/2025: Trial's existence confirmed by the National Institute for Health and Care Research (NIHR) (UK).