ClinicalTrials.gg
CompletedNCT01710579NOMADUpdated May 28, 2019

Normal Values in Ano-rectal 3D High Resolution Manometry

An interventional study of Anorectal 3D-high resolution manometry and Anorectal radial endosonography (rotative 360° probe) in Anorectal Disorder, Fecal Incontinence and Constipation, sponsored by Hospices Civils de Lyon. Completed at 1 site in France. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-05-28.

Primary conditionFecal IncontinenceRegistry: Rectal DiseasesReclassifiedWhy we changed it
Registry
Rectal Diseases — the first condition term the registry derived for this study.
ClinicalTrials.gg
Fecal Incontinence
Why
  1. The study's listed conditions name Fecal Incontinence, a narrower term within Rectal Diseases.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Hospices Civils de Lyon · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
127
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 32 studies in Fecal Incontinence with a site in France — 7 open to participants now, 7 under way, 2 of them phase 3. Fecal Incontinence · France.

Enrollment
6th of 17
127 · median 71
Started
2012
with 5 others
No phase
10 of 32
2 open now
Registered
11th of 32
by date

Among the 32 studies in Fecal Incontinence with a site in France, this one is the 6th largest by enrollment of the 17 interventional ones, is one of 6 that started in 2012, is one of 10 with no phase, and was the 11th registered.

By phase

32 studies; the count open now beside each. This study's row is marked.

Observational15 · 3 open
No phasethis study10 · 2 open
Phase 34 · 2 open
Phase 22 · 0 open
Phase 2/31 · 0 open

By the year they started

First in 2005; this study’s year is marked. 6 started in 2012.

Size and results

Median enrollment 71 across the 17 interventional studies, 85 across the 15 observational. Of the 24 that completed or were terminated, 3 (13%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 32 studies in Fecal Incontinence with a site in France, or all of them as a file.
02

Study summary

Ano-rectal manometry is indicative in patients with either fecal incontinence or constipation. Recently anorectal 3D- high resolution manometry has been developed. Pressure variations are measured circumferentially along the anal canal. It may allow a better understanding of anorectal disorders by displaying anal pressure asymmetry and it could be useful to assess the functional anatomy of the pelvic floor better than conventional manometry.

03

Conditions studied

  • Anorectal Disorder
  • Fecal Incontinence
  • Constipation

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Keywords

  • Primary esophageal achalasia
  • endoscopic myotomy
  • high resolution manometry
04

In context

Fecal Incontinence Reclassified

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

This study's enrollment of 127 is above the median of 50 across 203 interventional studies indexed under Fecal Incontinence.

Browse Fecal Incontinence studies →

Lead sponsor

Hospices Civils de Lyon is the lead sponsor of 1,866 studies on the registry; 448 are open to participants now.

Compared within Fecal Incontinence, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Rectal Diseases. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

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

Eligibility criteria

Arm 1: 50 healthy volunteers Inclusions will be stratified on gender (10 males, 40 females), age (15 subjects under 40 years; 20 subjects between 40 and 60 years; and 15 subjects >60 years) and parous (10 nullipara and 30 parous women).

Inclusion criteria:

Subject older than 18 years Absence of anorectal symptoms (no constipation, no fecal incontinence) Absence of pelvic floor disorders Vaizey score = 0 Kess score \< 9 Subject with health insurance Written Non inclusion criteria: Patient younger than 18 years Pregnancy Incapability to give consent No written informed consent Participation to another study at the same time Previous ano-rectal surgery Pelvic radiotherapy Neurological disorder Diabetes mellitus

Arm 2: 50 patients with fecal incontinence

Inclusion criteria:

Subject older than 18 years Patient referred for anorectal manometry and/or ultrasound examination Fecal incontinence as main complain Vaizey score > 6 Kess score \< 9 Subject with health insurance Written informed consent

Non inclusion criteria:

Patient younger than 18 years Pregnancy Incapability to give consent No written informed consent Participation to another study at the same time Rectal tumor Rectal stenosis Ileo-anal or ileo-rectal anastomosis Anal fissure Anal fistula Arm 3: 50 patients with constipation

Inclusion criteria:

Subject older than 18 years Patient referred for anorectal manometry and/or ultrasound examination Constipation as main complain Feeling of incomplete evacuation and/or manual disimpaction defined as needing to press in or around the anus to aid defecation Vaizey score \< 6 Kess score \< 9 Subject with health insurance Written informed consent

Non inclusion criteria:

Patient younger than 18 years Pregnancy Incapability to give consent No written informed consent Participation to another study at the same time Rectal tumor Rectal stenosis Ileo-anal or ileo-rectal anastomosis Anal fissure Anal fistula

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.

06

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
127 participants (actual)

Study arms

  • Other
    ARM 1 Healthy Volunteers

    Ano-rectal 3D high resolution manometry, ano-rectal radial endsonography, dynamic ano-rectal endosonography

    Procedure: Anorectal 3D-high resolution manometry · Procedure: Anorectal radial endosonography (rotative 360° probe) · Procedure: Dynamic anorectal endosonography (sagittal and radial)

  • Other
    ARM 2: Patients with fecal incontinence

    Ano-rectal 3D high resolution manometry, ano-rectal radial endsonography, dynamic ano-rectal endosonography

    Procedure: Anorectal 3D-high resolution manometry · Procedure: Anorectal radial endosonography (rotative 360° probe) · Procedure: Dynamic anorectal endosonography (sagittal and radial)

  • Other
    ARM 3 Patients with constipation

    Ano-rectal 3D high resolution manometry, ano-rectal radial endsonography, dynamic ano-rectal endosonography

    Procedure: Anorectal 3D-high resolution manometry · Procedure: Anorectal radial endosonography (rotative 360° probe) · Procedure: Dynamic anorectal endosonography (sagittal and radial)

Interventions

  • ProcedureAnorectal 3D-high resolution manometry

    Anorectal probe is used with a single-use protective sheath with an inflation balloon Control of balloon deflation Patient in left lateral decubitus position with hips flexed to 90° (this position is the most commonly use and the most convenient) Transanal insertion 2 minutes resting period: resting anal pressure will be evaluated the second minute of rest Sustained voluntary maximal squeeze for at least 30 seconds; the maneuver will be repeated once Valsalva Bear down maneuver; the maneuver will be repeated once Anorectal reflexes evaluation with 20-, 40- and 60-ml intra-rectal balloon inflation Probe removal

  • ProcedureAnorectal radial endosonography (rotative 360° probe)

    Patient in left lateral decubitus position with hips flexed to 90° Transanal probe insertion Evaluation of internal and external anal sphincter integrity and puborectalis muscle at rest

  • ProcedureDynamic anorectal endosonography (sagittal and radial)

    Patient in left lateral decubitus position with hips flexed to 90° Rectum is filled with 50-ml water Probe is covered with a water-filled balloon to maintain the acoustic window for the ultrasound wave Transanal probe insertion Slow and manual rotation of the linear probe through 360° to identify the various layers constituting the anal wall (mucosa, IAS, EAS), the layer forming the rectal wall and the perirectal tissues (puborectalis muscle, bladder, and vagina or prostate) After the initial examination, the patient will be asked to make a defecation effort with the probe left in the same position

07

What researchers measure

Primary outcomes

  1. Anal pressure pattern at rest, during voluntary maximal squeezing and bear down Anal pressure pattern at rest, during voluntary maximal squeezing and bear down

    Following parameters will be measured at the level of anal sphincter: * Minimal pressure (amplitude and location) * Maximal pressure (amplitude and location) * Mean pressure * Asymmetry

    Time frame: during procedure

Secondary outcomes

  1. presence of ano-rectal reflex.

    Time frame: during procedure

  2. Ano-rectal radial endosonography

    Evaluation of internal and external anal sphincter integrity and puborectalis muscle at rest

    Time frame: During procedure

  3. Dynamic ano-rectal endoconography

    presence of pelvic floor disorder (rectocele, enterocele)

    Time frame: During procedure

08

Study locations

1 site
  • Unité d'Exploration Fonctionnelle Digestive Hôpital Edouard Herriot
    Lyon, 69437, France
09

References and documents

Publications

  • Mion F, Garros A, Brochard C, Vitton V, Ropert A, Bouvier M, Damon H, Siproudhis L, Roman S. 3D High-definition anorectal manometry: Values obtained in asymptomatic volunteers, fecal incontinence and chronic constipation. Results of a prospective multicenter study (NOMAD). Neurogastroenterol Motil. 2017 Aug;29(8). doi: 10.1111/nmo.13049. Epub 2017 Mar 2. PubMed 28251732 ↗
10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Sep 2012, a primary completion of Sep 2014 and a completion of Sep 2014. It does not say whether these dates are actual or estimated.

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

Registered
Sep 14, 2012
First posted
Oct 19, 2012
Start
Sep 2012
Primary completionActual
Sep 2014
CompletionActual
Sep 2014
Last update
May 28, 2019
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 May 28, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01710579
Responsible party
Sponsor
First posted
Oct 19, 2012
Start date
Sep 2012
Primary completion
Sep 2014
Completion
Sep 2014
Last update
May 28, 2019

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2012. You cannot join it, but the record below documents what was studied.

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