The Effect of Inulin in Irritable Bowel Syndrome

Not Applicable

Completed

• Conditions: Bowel Symptoms; Depression Disorders; Inulin; Constipation; Quality of Life (QOL); Irritable Bowel Syndrome (IBS)
• Interventions: Dietary Supplement: Prebiotic group; Dietary Supplement: Maltodextrin (Placebo)

• Registration Number: NCT06610188
• Lead Sponsor: Mardin Artuklu University

Brief Summary

Purpose: This study was conducted to evaluate the effect of inulin on bowel symptoms, depression and quality of life in individuals with constipation-dominant irritable bowel syndrome. Individuals (n=34) aged 21-63 years with constipation-dominant IBS were included in the study. Individuals were divided into two groups as prebiotic group \[(n=17) (inulin/oligofructose 50/50 mixture of 4.6 g (Inulin=total 9.2 g) inulin/oligofructose 50/50 mixture twice a day)\], and placebo \[(n=17), (Maltodextrin=9.2 g)\] group. The intervention period was 8 weeks and Bristol Stool Scale, IBS-Visual Analogue Scale, IBS-Symptom Severity Score Scale (IBS-SSS), IBS-Quality of Life Scale (IBS-QoL) and Beck Depression Scale were administered to the participants at the beginning, 1st month and 2nd month. SPSS software programme was used for statistical analysis of the data. It is thought that inulin supplementation may be effective in reducing symptom severity and frequency, improving bowel function (stool frequency, consistency and transit time) and quality of life, and thus may be beneficial in individuals with constipation-predominant IBS.

Detailed Description

In the treatment of IBS, a multimodel perspective that includes psychological support (cognitive behavioural therapy, stress management techniques, etc.) in addition to lifestyle changes (dietary changes, etc.) may be beneficial.

Study Timeline

• Study Start: 2021-11-03
• Primary Completion: 2021-12-03
• Study Completion: 2023-04-01
• Status Verified: 2024-09
• Study First Submitted: 2024-09-19
• Study First Submitted QC: 2024-09-20
• Last Update Submitted: 2024-09-20
• Study First Posted: 2024-09-24
• Last Update Posted: 2024-09-24

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 34

Inclusion Criteria

• the individuals were between 19-65 years of age
• volunteer to participate in the study
• Individuals diagnosed with IBS by a physician according to Rome IV criteria

Exclusion Criteria

• a history of gastrointestinal surgery (except appendectomy and cholecystectomy)
• inflammatory bowel disease
• lactose malabsorption
• gastroenteritis
• celiac disease
• gastric
• duodenal ulcer
• metabolic diseases (cardiac, hepatic and renal diseases, diabetes, etc.)
• history of malignancy
• pregnancy and lactation
• use of intestinal motility
• antidepressant drugs
• involuntary body weight loss of more than 5 kg in the last 3 months
• use of dietary fibre supplements in the last 3 months
• use of antibiotics in the last 3 months
• use of prebiotic and probiotic supplements in the last 3 months.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
Prebiotic group	Prebiotic group	products containing a total of 9.2 g (4.6 g twice a day) inulin/oligofructose (50/50) mixture (prebiotic group) that individuals should consume daily were delivered to individuals in identical opaque bags.
Placebo	Maltodextrin (Placebo)	products containing a total of 9.2 g (4.6 g twice a day) maltodextrin (placebo group) that individuals should consume daily were delivered to individuals in identical opaque bags

Primary Outcome Measures

Name	Time	Method
IBS-Visual Analogue Scale (IBS-VAS)	8 weeks	The scale, which consists of ten questions in total, is preferred for converting non-numerical values into numerical form. In this scale, the parameter to be evaluated is defined at both ends of a 100 mm line and there are cuts that will enable scoring from 1 to 10. The scoring on the scale indicates that 1:very bad, 10:very good.
The Irritable Bowel Syndrome Symptom Severity Score (IBS/SSS)	8 weeks	The Irritable Bowel Syndrome Symptom Severity Score (IBS/SSS) was developed by Francis et al. (1997) to assess the severity of gastrointestinal symptoms in individuals with IBS. It consists of 5 questions in total and each question is scored between 0-100. The IBS-SSS scale has a maximum score of 500 points, which is classed as \'75-174 points= mild IBS\', \'175-299 points= moderate IBS\', and \'\>300 points= severe IBS\'.
Irritable Bowel Syndrome Quality of Life Scale (IBS-QoL)	8 weeks	The quality of life levels were assessed using the Irritable Bowel Syndrome Quality of Life Scale (IBS-QoL). The Irritable Bowel Syndrome Quality of Life Scale developed by Patrick et al. (1998) is divided into 8 sub-parametres, 34 questions in total and the lowest score is 34, while the highest score is 170. The increase in the total score obtained from the scale indicates a decrease in the quality of life associated with the disease.
The Bristol Stool Scale	8 weeks	The Bristol Stool Scale was used to determine the type of IBS through stool forms. This scale aims to predict the stool form over 7 different stool forms. Constipation- predominant IBS was evaluated over the first 4 stool forms, and it is understood that there is an improvement as the stool forms of the individuals approach the type 4 form.
The Beck Depression Scale	8 weeks	The Beck Depression Scale was used to evaluate the depression status of the individuals. It is a 21-question (multiple-choice) self-report scale developed by Aaron T. Beck to provide a quantitative assessment of depression severity (Beck, 1961). It provides a four-point Likert-type measurement. The score scale ranges from 0-3 for each question. Total score varies between 0-63. Higher scores obtained from the scale indicate more depressive symptoms. According to the validity and reliability article of the scale for Turkish, it was stated that the cut-off score was accepted as 17. In this study, the data were divided into two groups as depressed and non-depressed according to the scale using a cut-off score of 17.

Trial Locations

Locations (1)

Mardin Artuklu University; 🇹🇷 Mardin, Turkey