ClinicalTrials.gg
CompletedNCT03317938Updated Dec 26, 2025

Studies in Patients With Defecatory Disorders

An interventional study of Fecobionics in Fecal Incontinence and Constipation, sponsored by Giome. Completed at 2 sites in Hong Kong. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-26.

Sponsored by Giome · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
236
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Defecatory disorders like chronic constipation and faecal incontinence affect 25% of the population with rising incidence. Defecatory disorders pose a major health care burden and are poorly recognized and treated. The need for better diagnostics and therapeutics is substantial.

Current assessment of patients with constipation and faecal incontinence include endoscopic assessment to rule out intraluminal organic cause for patients' symptoms, endoanal ultrasound scan / MRI to assess patients' pelvic floor anatomy and anorectal manometry and balloon expulsion test to assess anorectal function. All tests are susceptible to measurement artifacts.

The standard technologies for anorectal assessment are anorectal manometry, balloon expulsion test and defecography. Endoluminal Functional Lumen Imaging Probe (EndoFLIP©) is a novel technology, originally used to measure the dimensions and function of a hollow organ. Anorectal manometry, balloon expulsion test, defecography, and the EndoFLIP probe will be used in the proposed studies. In addition, the proposed study intends to use a simulated feces named Fecobionics which is a device that integrates several technologies into one which will save time and reduce test variability.

In the proposed studies investigators will assess defecatory function in subgroups of Hong Kong patients suffering from chronic constipation and faecal incontinence and determine biomarkers to increase the diagnostic value of anorectal testing. Investigators will study up to 130 patients with anorectal disorders and 101 healthy control subjects. Investigators anticipate to improve diagnostics of anorectal disorders considerably and to learn about physiological mechanisms that affect defecatory efficacy.

Read the detailed description

Defecatory disorders like chronic constipation and faecal incontinence affect 25% of the population with rising incidence. Defecatory disorders pose a major health care burden and are poorly recognized and treated. The need for better diagnostics and therapeutics is substantial. Currently management options for these patients are limited, partly due to the fact that control of defaecation and continence is multifactorial but also due to the fact that it is difficult to identify the exact cause of patients' incontinence. Even in healthy subjects, many aspects of defecatory mechanisms are yet not well understood.

Current assessment of patients with constipation and faecal incontinence include endoscopic assessment to rule out intraluminal organic cause for patients' symptoms, endoanal ultrasound scan / MRI to assess patients' pelvic floor anatomy and anorectal manometry and balloon expulsion test to assess anorectal function. All tests are susceptible to measurement artifacts, with a high inter-individual variation with significant overlap between healthy asymptomatic and symptomatic patients.

The standard technologies for anorectal assessment are anorectal manometry, ballon expulsion test and defecography. Endoluminal Functional Lumen Imaging Probe (EndoFLIP©) is a novel technology, originally used to measure the dimensions and function of a hollow organ. Anorectal manometry, balloon expulsion test, defecography, and the EndoFLIP probe will be used in the proposed studies. In addition, the proposed study intends to use a simulated feces named Fecobionics which is a device that integrates several technologies into one which will save time and reduce test variability. A major difference from EndoFLIP and other technologies like anorectal manometry is that the device will be defecated rather than providing static data from one location in the anal canal.

In the proposed studies investigators will assess defecatory function in subgroups of Hong Kong patients suffering from chronic constipation and faecal incontinence and determine biomarkers to increase the diagnostic value of anorectal testing. Investigators will study up to 130 patients with anorectal disorders and 101 healthy control subjects. Investigators anticipate to improve diagnostics of anorectal disorders considerably and to learn about physiological mechanisms that affect defecatory efficacy. For example, one substudy investigates the effect of posture on defecation and another substudy focuses on deferred defecation. A third study assessed defecatory parameters as a function of the stiffness of Fecobionics. Pelvic floor function will also be assessed through vaginal measurements as well as Fecobionics may be endoscopically placed in sigmoid colon. Finally, a substudy assessed intestinal parameters after insertion of Fecobionics through a stoma.

02

Conditions studied

  • Fecal Incontinence
  • Constipation
03

In context

Fecal Incontinence

283 studies on the registry are indexed under Fecal Incontinence; 52 are open to participants now.

This study's enrollment of 236 is above the median of 50 across 203 interventional studies indexed under Fecal Incontinence.

Browse Fecal Incontinence studies →

Lead sponsor

Giome is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy subjects: Asymptomatic healthy persons aged over 18 years who can give .
  • CC (Chronic Constipation) Patients: Patients over 18 with history of FI for over 3months, who are able to give consent.
  • FI (Fecal Incontinence) patients: Patients over 18 with history of FI for over 3months, who are able to give consent.
  • Patients with a stoma who are over 18 years and able to give consent.

Exclusion criteria

Exclusion Criteria:

  • Healthy subjects: Persons with a history of constipation or fecal incontinence, prior abdominal surgery, medication, and diseases, especially chronic diseases that affect bowel function and defecation. Pregnant women will also be excluded.
  • CC Patients: Patients, who are not willing to undergo the proposed test program and patients with prior anorectal or intestinal surgery. Pregnant women and patients with chronic dehydration and on medications like opioids will also be excluded.
  • FI patients: 1) Patients who are not willing to undergo the specified tests in this study, 2) Pregnant women and 3) Patients who has had anorectal surgery or bowel resection.
  • Patients with stoma: Patients, who are not willing to undergo the proposed test program and patients who have inflammation or symptoms related to the stoma.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
236 participants (actual)

Study arms

  • Experimental
    Fecobionics studies

    Device: Fecobionics

Interventions

  • DeviceFecobionics

    Fecobionics is a new device for studying defecation

06

What researchers measure

Primary outcomes

  1. Decreased anorectal pressure assessed with the Fecobionics device

    The number of participants with low anorectal pressure during defecation

    Time frame: 1 year

Secondary outcomes

  1. Decreased anorectal mechanical stress assessed with the Fecobionics device

    The number of participants with low anorectal mechanical stress during defecation

    Time frame: 1 year

  2. Decreased anorectal angle assessed with the Fecobionics device

    The number of participants with small anorectal angle during defecation

    Time frame: 1 year

  3. Wave-like decrease in cross-sectional area with the Fecobionics device

    The amount of recordings with retrograde intestinal ripples

    Time frame: 1 year

07

Study locations

2 sites
  • Prince of Wales Hospital
    Hong Kong, Hong Kong 000000, Hong Kong
  • Department of Surgery, Prince of Wales Hospital
    Hong Kong, 0000, Hong Kong
08

References and documents

Publications

  • Futaba K, Chen SC, Leung WW, Wong C, Mak T, Ng S, Gregersen H. Fecobionics Evaluation of Biofeedback Therapy in Patients With Fecal Incontinence. Clin Transl Gastroenterol. 2022 May 1;13(5):e00491. doi: 10.14309/ctg.0000000000000491. PubMed 35363631 ↗
  • Gregersen H, Chen SC, Leung WW, Wong C, Mak T, Ng S, Daming S, Futaba K. Characterization of Patients With Obstructed Defecation and Slow Transit Constipation With a Simulated Stool. Clin Transl Gastroenterol. 2021 May 5;12(5):e00354. doi: 10.14309/ctg.0000000000000354. PubMed 33949343 ↗
  • Chen SC, Futaba K, Leung WW, Wong C, Mak T, Ng S, Gregersen H. Fecobionics assessment of the effect of position on defecatory efficacy in normal subjects. Tech Coloproctol. 2021 May;25(5):559-568. doi: 10.1007/s10151-021-02439-2. Epub 2021 Mar 29. PubMed 33779850 ↗
  • Gregersen H, Chen SC, Leung WW, Wong C, Mak T, Ng S, Futaba K. Novel Fecobionics Defecatory Function Testing. Clin Transl Gastroenterol. 2019 Dec;10(12):e00108. doi: 10.14309/ctg.0000000000000108. PubMed 31800543 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2017 to primary completion in Dec 2024, 88 months.

Of 70 non-industry interventional studies with no phase under Fecal Incontinence, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 57. This study's 88 months is above that.

Counting every sponsor, half of 86 studies reached it within 36 months; a quarter within 20 and three quarters within 57.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 3, 2017
First posted
Oct 23, 2017
StartActual
Aug 14, 2017
Primary completionActual
Dec 31, 2024
CompletionActual
Dec 31, 2024
Last update
Dec 26, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03317938
Lead sponsor
Giome
Responsible party
Hans Gregersen (Professor, Giome) — Principal investigator
First posted
Oct 23, 2017
Start date
Aug 14, 2017
Primary completion
Dec 31, 2024
Completion
Dec 31, 2024
Last update
Dec 26, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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