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Irritable Bowel SyndromeNCT04665271

Acceptability and Efficacy of Zemedy App Versus Education and Relaxation Training App for IBS

A study testing Zemedy App in people with Irritable Bowel Syndrome, run by University of Pennsylvania at 1 site in United States.

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 research is to assess if a new digital app version of a self-help intervention for Irritable Bowel Syndrome (IBS), is an acceptable and effective treatment for improving the overall quality of life in patients with IBS. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Irritable Bowel Syndrome
What is being tested?
Zemedy App
Could I receive a placebo?
No, everyone receives an active treatment
How many people
453 participants
Where
1 siteUnited States
Study dates
1 Mar 2021to 28 May 2024
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Self-report of physician diagnosis of IBS.
  • At least 18 years of age.

Who cannot join

  • Severe depression or suicidality
  • Comorbid GI disorder such as inflammatory bowel disease or celiac disease.
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104-6018

Other trials in United States

About this study

The purpose of this research is to assess if a new digital app version of a self-help intervention for Irritable Bowel Syndrome (IBS), is an acceptable and effective treatment for improving the overall quality of life in patients with IBS.

Read the detailed description

The aim of the current study is to test the acceptability and efficacy of an updated digital app for IBS patients. The design of the study is experimental. There will be two experimental groups, an immediate treatment group and an active control group. Once consented and enrolled, participants will be randomly assigned to either the immediate treatment group or the active control group by the coin toss feature of random.org. Participants in the immediate treatment group will be able to download the app at no cost. Participants in the control group will be given access to an education and relaxation training control app at no cost to them. At 8 weeks after enrollment, all participants in both groups will receive a battery of follow-up questionnaires (the same that they answered directly after consenting in the beginning of the study as baseline measures). Upon receipt of the 8 week questionnaire data, participants in the control group will be given access to the Zemedy app. After having had access to the app for 8 weeks, control participants will be asked to complete another set of questionnaires. All participants will receive 3 month post-treatment follow-up questionnaires. The research method is experimental, cross over (randomized controlled trial) with a control control. Participation in the study will last approximately 4.5 months, depending on the subjects willingness to participate and rate of completion.

Being tested
Zemedy App
Keywords
cognitive behavioral therapy
Medical subject headings
Irritable Bowel Syndrome

What participants receive

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

  • Zemedy AppBehavioural

    Digital smart phone app that delivers cognitive-behavioral therapy for IBS

Study groups in NCT04665271
Study groupRoleWhat they receive
Immediate Treatment - Zemedy AppExperimentalParticipants will be given immediate access to the Zemedy app for IBS.
Receives: Behavioral: Zemedy App
Active Control - Education and Relaxation Training AppActive comparatorParticipants will be given access to a education and relaxation training app. After 8 weeks they will then be crossed over to the Zemedy app.
Receives: Behavioral: Zemedy App

What is being measured

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

  1. Irritable Bowel Syndrome Quality of Life (IBSQoL)

    IBS specific health related quality of life measure. Scale scores range from 0-100 with higher scores reflecting more impairment (worse outcome)

    Measured: 8 weeks

  2. Gastrointestinal Symptom Rating Scale (GSRS)

    Gastrointestinal Symptom Rating Scale. Scale scores range from 0-78 with high scores representing worse GI symptoms.

    Measured: 8 weeks

Secondary outcomes (5)
  1. GI-Cognitions Questionnaire (GICog)

    Scale measures distorted, catastrophic beliefs about the social and occupational implications of having gastrointestinal symptoms. Scale scores range from 0 to 64 with higher scores representing worse outcomes (more distorted, catastrophic beliefs about GI symptoms)

    Measured: 8 weeks

  2. Visceral Sensitivity Index (VSI)

    Scale measures anxiety about visceral (gut) sensations. Scale scores range from 0 to 75 with higher scores representing more anxiety.

    Measured: 8 weeks

  3. Fear of Food Questionnaire (FFQ)

    Scale measures fear of food and aversive consequences of eating. Scale scores range from 0-90 with higher scores representing more fear and impairment.

    Measured: 8 weeks

  4. Beck Depression Inventory (BDI)

    Measures depressive symptoms. Scale scores range from 0 to 63 with higher scores representing more severe depressive symptoms.

    Measured: 8 weeks

  5. Work Productivity and Activity Impairment (WPAI)

    Measures occupational impairment stemming from a health condition. scores range from 0 to 30 with higher scores representing more impairment

    Measured: 8 weeks

Timeline

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

  1. First posted11 Dec 2020
  2. Study start1 Mar 2021
  3. Primary completion30 Dec 2023
  4. Study completion28 May 2024

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
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Active control with cross-over at post-treatment and three month follow-up
Masking
None (open label)
Enrolment
453 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04665271
Sponsor's protocol ID
844160
Status last verified
Nov 2025
First submitted
12 Nov 2020
Last updated
11 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hunt MG, Dalvie A, Ipek S, Wasman B. Acceptability and efficacy of the Zemedy app versus a relaxation training and meditation app for IBS: protocol for a randomised controlled trial. BMJ Open. 2022 Jan 17;12(1):e055014. doi: 10.1136/bmjopen-2021-055014.

    PubMed 35039299

Questions about this trial

What is this clinical trial studying?

A study testing Zemedy App in people with Irritable Bowel Syndrome, run by University of Pennsylvania at 1 site in United States.

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 2 inclusion and 3 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 11 Dec 2025. 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 United States. 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?

Irritable Bowel Syndrome Quality of Life (IBSQoL) (time frame: 8 weeks). The study lists 2 primary outcomes in all. 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 NCT04665271, 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 11 Dec 2025.

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