EvaluatIng Normal Values for traditionaL anorectaL fUnction paraMeters With aIr Charged aNd Solid State HRAM catheTErs ("ILLUMINATE" Study)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

81 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-01-09

Study Completion Date

2026-01-31

Brief Summary

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The research study will be conducted to obtain baseline, or "normative" information to compare an air charged HRAM catheter to traditional solid catheter measures using the IAPWG standardized testing protocol and London classification.

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Detailed Description

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The primary purpose of this research study is to obtain normative datasets for traditional measures of anorectal function with an air charged HRAM catheter in healthy subjects using the IAPWG standardized testing protocol and London classification for anorectal manometry (ARM) measurement.

A secondary purpose is to qualitatively compare the performance of air charged and solid state HRAM catheters in determining values for traditional measures of anorectal function in a subset of study subjects using the IAPWG standardized testing protocol and London classification for ARM measurement.

Conditions

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Healthy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Air Charged Catheter ARM Procedure

Normative datasets for traditional measures of anorectal function with an air charged HRAM catheter will be collected in healthy subjects using the IAPWG standardized testing protocol and London classification for ARM measurement.

Intervention Type DIAGNOSTIC_TEST

Solid State Catheter ARM Procedure

Normative datasets for traditional measures of anorectal function with a solid state HRAM catheter will be collected in some healthy subjects using the IAPWG standardized testing protocol and London classification for ARM measurement for comparison to the air charged catheter.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* 1\. Male and female volunteers, 18-65 years old
* 2\. Willing to provide informed consent
* 3\. Willing and able to follow instructions for ARM procedure

Exclusion Criteria

* 1\. Documented history of gastrointestinal disorders such as:
* a. fecal incontinence,
* b. irritable bowel syndrome (IBS),
* c. functional constipation, as defined by two or more of these symptoms for at least 25% of the time over the past 3 months:
* i. excessive straining,
* ii. hard or lumpy stools,
* iii. sensation of incomplete evacuation,
* iv. a feeling of anorectal blockage,
* v. manual maneuvers to facilitate defecation,
* vi. or fewer than 3 bowel movements per week.
* d. functional diarrhea, as defined by the following symptoms over the past 3 months:
* i. Loose or watery stools
* ii. Lack of pain with diarrhea
* iii. Diarrhea occurring in at least 75% of bowel movements
* iv. No identifiable causes
* 2\. Use of medications that may affect gastrointestinal motility as determined by healthcare professional.
* 3\. Prior pelvic radiation,
* 4\. Prior anorectal surgical procedures, including treatment for hemorrhoids,
* 5\. Risk factors for pelvic floor trauma:
* a. more than 4 vaginal deliveries,
* b. vaginal delivery with birthweight greater than 4500gms (macrosomia),
* c. known 4th degree perineal tear or known forceps use during delivery.
* 6\. Contraindicated for ARM testing
* 7\. Has gastrointestinal symptoms and is indicated for ARM testing
* 8\. Subject is currently pregnant or plans to become pregnant during the course of their enrollment in the study, as self-reported.

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes