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An Exploratory study evaluating the effects of a psychological program designed to modify thinking and behavioral patterns in patients with irritable bowel syndrome, assessed using EEG and psychological measures (CS-FBD and IBS-BRQ)

A pilot study evaluating the effects of cognitive behavioral therapy for irritable bowel syndrome, assessed using electroencephalography and cognitive-behavioral measures (CS-FBD and IBS-BRQ) - A pilot study evaluating the effects of CBT for IBS using EEG and psychological measures

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000060885
Enrollment
15
Registered
2026-03-23
Start date
2026-04-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

irritable bowel syndrome

Interventions

cognitive behavioral therapy seven sessions, each lasting 50 minutes Cognitive behavioral therapy consisted of the following components: 1. Psychoeducation 2. Self-monitoring 3. Cognitive restruc

Sponsors

Saitama Prefectural University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Gender: Not specified 2. Age: 18 years or older and under 65 years 3. Individuals with symptoms of irritable bowel syndrome (IBS) based on the Rome IV diagnostic criteria 4. Japanese individuals 5. Individuals who are able to understand the purpose and procedures of the study and are willing to participate voluntarily 6. Individuals who are able to provide written informed consent 7. Individuals who are able to participate in all required assessments during the study period (pre-intervention, mid-intervention, post-intervention, and follow-ups at 1, 3, and 6 months)

Exclusion criteria

Exclusion criteria: 1. People diagnosed with gastrointestinal diseases other than IBS 2. People using electronic medical devices, such as cardiac pacemakers 3. People deemed inappropriate for study participation by the investigators 4. People who are pregnant or breastfeeding 5. People currently participating in other clinical trials

Design outcomes

Primary

MeasureTime frame
1. CS-FBD-J (Cognitive Scale for Functional Bowel Disorders) Measurement method: Self-reported CS-FBD-J questionnaire Measurement timing: Baseline (pre-intervention), mid-intervention, post-intervention, and at 1, 3, and 6 months after the completion of the intervention Assessment content: Cognitive responses to functional gastrointestinal disorders Primary evaluation point: Change in CS-FBD-J score from baseline (pre-intervention) to post-intervention 2. IBS-BRQ-J (Behavioral Responses Questionnaire) Measurement method: Self-reported IBS-BRQ-J questionnaire Measurement timing: Baseline (pre-intervention), mid-intervention, post-intervention, and at 1, 3, and 6 months after the completion of the intervention Assessment content: Behavioral responses related to IBS symptoms Primary evaluation point: Change in IBS-BRQ-J score from baseline (pre-intervention) to post-intervention

Secondary

MeasureTime frame
1. Changes in brain wave patterns Measurement method: Electroencephalogram (EEG) measurements Measurement timing: Baseline (pre-intervention), mid-intervention, and post-intervention Assessment content: Resting-state brain activity and brain activity related to interoceptive processing 2. Change in Irritable Bowel Syndrome Severity Index (IBS-SI) score Measurement method: Self-reported IBS Severity Index (IBS-SI) questionnaire Measurement timing: Baseline (pre-intervention), mid-intervention, post-intervention, and at 1, 3, and 6 months after the completion of the intervention Assessment content: Overall IBS symptom severity, including abdominal pain intensity and frequency, abdominal bloating, satisfaction with bowel habits, and interference with daily life Primary evaluation point: Change in IBS-SI score from baseline (pre-intervention) to post-intervention 3. Improvement in IBS-specific quality of life (IBS-QOL) score Measurement method: IBS Quality of Life (IBS-QOL) questionnaire Measurement timing: Baseline (pre-intervention), mid-intervention, post-intervention, and at 1, 3, and 6 months after the completion of the intervention 4. Changes in psychological measures Measurement method: Visceral Sensitivity Index (VSI) and Hospital Anxiety and Depression Scale (HADS) Measurement timing: Baseline (pre-intervention), mid-intervention, post-intervention, and at 1, 3, and 6 months after the completion of the intervention

Countries

Japan

Contacts

Public ContactMutsumi Kaneko

Saitama Prefectural University Secretariat, Research and Community Relations

shorei@spu.ac.jp048-973-4120

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026