NCT05945251

Brief Summary

Functional abdominal pain disorders (FAPDs) in children are common (14%) and abdominal pain has increased rapidly in children during the last ten years in Sweden. Many children with FAPDs have low quality of life, missed school days, and about 30-40% suffer from psychiatric comorbidity. FAPDs are often sustained into adulthood and a large Swedish cohort study showed that abdominal pain during childhood is an independent strong predictor anxiety and depression later in life. Internet-cognitive behavioral therapy (Internet-CBT) can improve FAPD symptoms, but a significant number of children does not respond to the treatment. We will here determine the pain regulation in children with FAPDs, compared with healthy controls, and assess: What aspects of the child's pain regulation is related to improvement for children with FAPDs engaging in Internet-CBT? Does some aspects of the child's pain regulation change during treatment?

Trial Health

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Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 6, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 14, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

November 1, 2023

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2026

Completed
Last Updated

September 3, 2025

Status Verified

August 1, 2025

Enrollment Period

2.2 years

First QC Date

July 6, 2023

Last Update Submit

August 26, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Pressure pain threshold on navel

    Algometer pressure (in kPa) for the pain threshold

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

  • Unpleasantness of pressure pain threshold on navel

    Children rate their unpleasantness on a scale 0-10

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

Secondary Outcomes (11)

  • Pressure pain threshold on thigh

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

  • Unpleasantness of pressure pain threshold on thigh

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

  • Conditioned pain modulation

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

  • Temporal summation

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

  • Sensory attenuation of pain

    Baseline differences and baseline to follow-up after 10 week's treatment (or 10 week's wait for healthy children)

  • +6 more secondary outcomes

Study Arms (2)

FAPDs

Children 8-17 years with FAPDs

Other: Internet-delivered cognitive behavioral therapy

Controls

Children 8-17 years without FAPDs

Interventions

Ten weekly modules for children and ten weekly modules for parents. Exposure-based cognitive behavioral therapy delivered online with asynchronous support via text messages from psychologists.

FAPDs

Eligibility Criteria

Age8 Years - 17 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Children (n=40) aged 8-17 with FAPDs who are patients at BUP Internetbehandling within the Child and Adolescent Psychiatry in Stockholm will be included in the study. Their behavioral and neural pain mechanisms will be assessed before and after Internet-CBT. We will also recruit healthy control children (n=40) aged 8-17 to compare the pain regulation between the groups. First, we will ask whether there are healthy siblings to the participating children with FAPDs that are willing to participate. If we don't get enough children by asking siblings, social media will be used in the recruitment.

You may qualify if:

  • Children 8-17 years with FAPDs: Have been offered treatment at BUP Internetbehandling for FAPDs.
  • Children 8-17 years without FAPDs: Not affected by recurrent (every week) or persistant pain during the last year.

You may not qualify if:

  • Contraindication for MR (metal implant or metal object in body, claustrophobia, pregnancy)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Karolinska Institutet

Stockholm, Karolinska Institutet, 17177, Sweden

RECRUITING

Study Officials

  • Maria Lalouni, PhD

    Karolinska Institutet

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Maria Lalouni, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

July 6, 2023

First Posted

July 14, 2023

Study Start

November 1, 2023

Primary Completion

January 1, 2026

Study Completion

January 1, 2026

Last Updated

September 3, 2025

Record last verified: 2025-08

Locations