NCT05833191

Brief Summary

Constipation is the most common digestive complaint in the general population. Normal stool frequency ranges from at least three times a week to a maximum of two times a day. Constipation can be classified into three main groups as constipation with normal transit time, constipation with slow transit time and dyssynergic defecation disorders.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2023

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 15, 2023

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

April 17, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 27, 2023

Completed
18 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2023

Completed
1.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 9, 2024

Completed
Last Updated

July 10, 2024

Status Verified

July 1, 2024

Enrollment Period

1 month

First QC Date

April 17, 2023

Last Update Submit

July 9, 2024

Conditions

Keywords

vagustibial nerve stimülation

Outcome Measures

Primary Outcomes (5)

  • Bristol Stool Scale

    Bristol Stool Scale (BGS) In the scale, the type of stool is classified into 7 different groups. In the Bristol stool scale, the intestinal transit time of stool is evaluated over seven different stool types. According to BGS, 1-2 points are "hard stools", 3-4-5 points are "normal stools" and 6-7 points are "soft-watery stools (diarrhea)".

    4 weeks

  • Pelvic Pain Impact Questionnaire

    The clinical assessment of the effect of pelvic pain on women consists of 10 questions. However, the first 8 questions are scored. The range of points to be taken from the questionnaire varies between 1 and 32. As the score to be obtained from the questionnaire increases, the degree of functional limitation of pelvic pain on the person also increases.

    4 weeks

  • Superficial Electromyography Biofeedback

    Before starting the treatment, the target that the patient wants to reach is determined. With the "set target" feature on the device, tensing and relaxation are practiced for 10 seconds and the average target is determined. Then, the target is created by taking the percentage of this determined target. Since the goal in this study is relaxation, the patient is asked to decrease the value on the graph during the session.

    4 weeks

  • Constipation Severity Scale

    The lowest possible total score is 0, and the highest is 73. A high score from the scale indicates that the symptoms are serious. The highest score that can be obtained from the five-point Likert-type scale is 140, and the lowest score is 28. It is thought that as the scores obtained from the scale increase, the quality of life is negatively affected.

    4 weeks

  • Autonomic nervous system device

    In the study, the autonomic nervous system will be evaluated with the Polar H10 device. By connecting the device to a smart phone via bluetooth, the data will be recorded and the software supported by the device will be used for the analysis of the data. A measurement will be made with the participant in a sitting position and lasting up to 3 minutes.

    4 weeks

Study Arms (2)

Auricular vagus stimulation

EXPERIMENTAL

Non-invasive transcutaneous devices stimulate the vagus nerve via the auricular route or from the carotid.

Device: Auricular vagus stimulation

Tibial Nerve Stimulation

EXPERIMENTAL

Transcutaneous tibial nerve stimulation (TTNS) is reported to be beneficial for fecal and urinary incontinence. A review of the literature showed that there are very few studies using TTNS that have been shown to be effective for constipation.

Device: Tibial Nerve Stimulation

Interventions

When the nervus tibialis approaches the medial malleolus, it approaches the surface. In this study, bilateral transcutaneous electrical nerve stimulation (TENS) electrodes will be placed under the medial malleolus approximately at the point where the tibialis nerve contacts the surface.

Auricular vagus stimulation

When the nervus tibialis approaches the medial malleolus, it approaches the surface. In this study, bilateral transcutaneous electrical nerve stimulation (TENS) electrodes will be placed under the medial malleolus approximately at the point where the tibialis nerve contacts the surface.

Tibial Nerve Stimulation

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being diagnosed with chronic constipation

You may not qualify if:

  • Metabolic diseases
  • Severe heart or kidney disease, previous gastrointestinal, spinal or pelvic surgery other than cholecystectomy, hysterectomy or appendectomy,
  • Neurological diseases such as multiple sclerosis, stroke, Parkinson's disease or spinal injury, impaired awareness
  • Mini-mental score \< 15
  • Legal blindness, pregnancy, rectal prolapse, anal fissure, and alternating pattern of constipation and diarrhea.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Medipol hospital

Istanbul, Istanbul Avrupa Kitasi, 34353, Turkey (Türkiye)

Location

Medipol hospital

Istanbul, 34070, Turkey (Türkiye)

Location

Related Publications (1)

  • Tan K, Wells CI, Dinning P, Bissett IP, O'Grady G. Placebo Response Rates in Electrical Nerve Stimulation Trials for Fecal Incontinence and Constipation: A Systematic Review and Meta-Analysis. Neuromodulation. 2020 Dec;23(8):1108-1116. doi: 10.1111/ner.13092. Epub 2019 Dec 30.

    PMID: 31889364BACKGROUND

MeSH Terms

Conditions

Constipation

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Masking Details
In our study, which is planned as a single-blind evaluation, different physiotherapists will perform the evaluation and application.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The study will be included in a 12-session treatment program over four weeks.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
physiotherapist PhD

Study Record Dates

First Submitted

April 17, 2023

First Posted

April 27, 2023

Study Start

April 15, 2023

Primary Completion

May 15, 2023

Study Completion

July 9, 2024

Last Updated

July 10, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations