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The Effect of Sugar Load in IBS Patients Depending on Sucrase-isomaltase Genes

R

Region Skane

Status

Completed

Conditions

Irritable Bowel Syndrome
Sucrase-Isomaltase Deficiency

Treatments

Dietary Supplement: Sugar

Study type

Interventional

Funder types

Other

Identifiers

NCT05688826
Sugarload-2023

Details and patient eligibility

About

The investigators know that many patients with irritable bowel syndrome (IBS) have functional variants of genes coding for sucrase-isomaltase enzymes. The investigators will now examine whether these functional variants are associated with defect degradation of sucrose and associated gastrointestinal symptoms

Full description

The investigators have in a previous study included IBS patients for treatment with a starch- and sucrose reduced diet (SSRD). The investigators found a great improvement of symptoms. The investigators gene-tested those patients, and now have the full identification of all functional variants encoding sucrase-isomaltase enzymes.

The investigators will invite patients from this previous study with normal genes and functional variants of genes. The patients will come fasting over night to the department of clinical research. The participants will ingest 75 g sugar dissolved in 0.8 dl water and flavored with lemon, to ingest during 5 minutes. After that, glucose will determined repeatedly up to 2 hours afterwards. At the same time, the participants have to assess their gastrointestinal sympotms on visual analogue scales (VAS).

The investigators will compare the raise in b-glucose and symptoms between the groups of patients, divided into gene expression.

Enrollment

40 patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Participants of our previous clinical trial with SSRD diet (NCT03306381)

Exclusion criteria

  • Difficulties in taking blood samples

Trial design

Primary purpose

Diagnostic

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

40 participants in 1 patient group

Sugar load
Experimental group
Description:
Sugar dissolved in water will be ingested during 5 minutes
Treatment:
Dietary Supplement: Sugar

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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