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Spina BifidaANOSPINNCT02440984

Anorectal Dysfunction in Patients Suffering From Spina Bifida : From Clinic to Neuro-epithelial Function (ANOSPIN)

A study testing Colonic biopsies during endoscopy in people with Spina Bifida, run by Rennes University Hospital at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to assess and explain (at least apart) anorectal disorders of patients with Spina Bifida by an automatic neuropathy responsive of enteric nervous system and epithelial barrier dysfunctions. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Spina Bifida
What is being tested?
Colonic biopsies during endoscopy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteFrance
Study dates
15 Jun 2015to 22 May 2017
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patient aged between 18 and 65 years old
  • patient who consulted to the national Spina Bifida Center for multidisciplinary assessment or for a proctology/urologic clinic
  • need of colonic biopsies during endoscopy
  • free, written and informed consent

Who cannot join

  • pregnancy or breastfeeding
  • protected adults (judicial protection, guardianship and truesteeship) and persons deprived of liberty
  • patient unable to giving their consent
  • anticoagulants therapy or coagulation disorders

Trial locations and contacts

1 site in 1 country.

France1 site
  • Rennes University Hospital

    Rennes

Other trials in France

About this study

Official title: Anorectal Dysfunction in Patients Suffering From Spina Bifida : From Clinic to Neuro-epithelial Function

The purpose of this study is to assess and explain (at least apart) anorectal disorders of patients with Spina Bifida by an automatic neuropathy responsive of enteric nervous system and epithelial barrier dysfunctions. The investigators' aim hypothetics is that autonomic neuropathy of patients with Spina Bifida induce enteric nervous sytem and epithelial barrier dysfunctions which explain anorectal disorders of these patients. Thexpect to show a decreased of 5% of enteric neurons per ganglia.

Read the detailed description

Spina Bifida is rare disease related to a failure of the closure of neural tube during the embryonic period. This malformation results in a variety of clinical disorders (neurologic, urologic, orthopedic, anorectal), depending on the level of the spinal cord lesion. Anorectal functional disorders remain underestimated and unknown from a pathophysiological point of view with subsequent uncodified therapeutic strategy.

Patients with Spina Bifida always present autonomic neuropathy that contributes partially to the anorectal disorders. These disorders may be related to a closed relationship between autonomic and enteric nervous system. Both nervous systems play a key role in anorectal disorders during others neurological disaeses have a common and simultaneous development from neural crest and induce colonic epithelial changes related to the closed connection between epithelial barrier and enteric nervous system. All of this remains hypothetic because no data regarding the impairment of enteric nervous system and epithelial barrier are available and no study are ongoing on this topic.

Conditions
Spina Bifida
Being tested
Colonic biopsies during endoscopy
Keywords
enteric nervous system, anorectal disorder, barostat anorectal, physiology, spina bifida
Medical subject headings
Spinal Dysraphism, Rectal Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Colonic biopsies during endoscopyProcedure or surgery

    eligible patients will have physical examination, colonic biopsies during endoscopy and anal manometry with barostat. these investigations are part of the usual healthcare. Colonic biopsies will be used to study intestinal permeability, colonic inflammation and enteric nervous system.

Study groups in NCT02440984
Study groupRoleWhat they receive
Enteric nervous system dysfunctionOthercolonic biopsies and usual care
Receives: Procedure: Colonic biopsies during endoscopy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. number of enteric neurons per ganglia

    all data will be collected in the Spina Bifida database for further analyses. Colonic biopsies will be used to study intestinal permeability, colonic inflammation and enteric nervous system

    Measured: data collected at the day of endoscopy

Secondary outcomes (6)
  1. anorectal symptoms

    Measured: data collected at the day of endoscopy

  2. Rectal compliance

    Rectal compliance is defined by a volume variation during ascending pressure (phasic distension). It will be performed with a bag connected to electronic barostat.

    Measured: data collected at the day of endoscopy

  3. Likert scale

    Sensation intensity will be measured at each pressure step, by using 6-point Likert scale ranging from 0 (no sensation) to 6 (intolerable pain)

    Measured: data collected at the day of endoscopy

  4. macroscopic and microscopic colonic inflammation

    Measured: data collected at the day of endoscopy

  5. intestinal permeability marker

    Intestinal permeability will be measured using Ussing chamber.

    Measured: data collected at the day of endoscopy

  6. number of glia cells per ganglia

    Measured: data collected at the day of endoscopy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 May 2015 (estimated)
  2. Study start15 Jun 2015
  3. Primary completion22 May 2017
  4. Study completion22 May 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02440984
Sponsor's protocol ID
2015-A00082-47
Other IDs
35RC15_8926
Acronym
ANOSPIN
Status last verified
Mar 2026
First submitted
28 Apr 2015
Last updated
30 Mar 2026
Results posted
No
Data monitoring committee
No

Publications

  • Brochard C, Bouguen G, Olivier R, Durand T, Henno S, Peyronnet B, Pagenault M, Lefevre C, Boudry G, Croyal M, Fautrel A, Esvan M, Ropert A, Dariel A, Siproudhis L, Neunlist M. Altered epithelial barrier functions in the colon of patients with spina bifida. Sci Rep. 2022 May 3;12(1):7196. doi: 10.1038/s41598-022-11289-3.

    PubMed 35505001

Questions about this trial

What is this clinical trial studying?

A study testing Colonic biopsies during endoscopy in people with Spina Bifida, run by Rennes University Hospital at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

number of enteric neurons per ganglia (time frame: data collected at the day of endoscopy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02440984, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Mar 2026.

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