NCT03638544

Brief Summary

This study aim to manufacture bread and pasta with an reduced content of gluten and to assess the impact of reducing the daily intake of gluten by 50% in irritable bowel syndrome (IBS) patients. Fungal proteases and selected sourdough lactic acid bacteria will be used for making wheat bread and pasta with a reduced content of gluten (RG) (-50% of traditional products). From a technological point of view, the chemical, structural and sensory features of the RG products approached those of the bread and pasta made with normal level of gluten. The efficacy and safety of new products will be compared to traditional bread and pasta by using a double blind randomized, crossover-controlled trial in IBS patients with persistent gastrointestinal symptoms. Patients will follow two weeks of a GFD diet containing RG bread and pasta and two weeks of GFD diet containing Normal Gluten bread and pasta Symptoms severity will be assessed by Irritable Bowel Syndrome Severity Score (IBS-SS), Visual Analogue Scale (VAS), Hospital Anxiety and Depression Scale (HADS) and Irritable Bowel Syndrome Quality of Life (IBS-QoL).

Trial Health

100
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2014

Longer than P75 for not_applicable

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2014

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2016

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2017

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

July 11, 2018

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 20, 2018

Completed
Last Updated

August 20, 2018

Status Verified

August 1, 2018

Enrollment Period

3 years

First QC Date

July 11, 2018

Last Update Submit

August 15, 2018

Conditions

Outcome Measures

Primary Outcomes (2)

  • Change in Severity of IBS symptoms measured by Irritable Bowel Syndrome-Severity Score (IBS-SS)

    Change in IBS Severity Score (IBS-SS) between reduced gluten content diet and standard gluten content diet. Mild, moderate and severe cases were indicated by scores of 75 to 175, 175 to 300 and "300 respectively. Mild, moderate and severe cases are indicated by scores of 75 to 175, 175 to 300, and \>300, respectively.

    two weeks of each different diet interspersed by one week of wash out. The questionnaire will be completed ones a week.

  • Change of IBS severity measured by Visual analogue scale (VAS)

    Change of severity of IBS symptoms measured by Visual analogue scale (VAS) between reduced gluten content diet and standard gluten content diet. The 0-10 mm VAS scale (0 no pain, 10 worst possible pain) included a horizontal color gradient (green-red).

    Two weeks of each different diet interspersed by one week of wash out. The scale will be completed ones a day.

Secondary Outcomes (1)

  • Change of Quality of life scores

    two weeks of each different diet interspersed by one week of wash out. The scale will be completed ones a week.

Study Arms (2)

Reduced Gluten-Normal Gluten

ACTIVE COMPARATOR
Dietary Supplement: Reduced gluten bread and Pasta compared o normal gluten bread and Pasta

Normal Gluten-Reduced Gluten

ACTIVE COMPARATOR
Dietary Supplement: Reduced gluten bread and Pasta compared o normal gluten bread and Pasta

Interventions

Pasta with low gluten (50% of the normal) content achieved by optimization of techological parameters such as dough yield, time of fermentation and concentration of fungal proteases The gluten reduction is obtained without any other intervention of wheat breeding or the endogenous proteolytic enzymes of flours.

Normal Gluten-Reduced GlutenReduced Gluten-Normal Gluten

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age above 18 years;
  • having bowel symptoms (altered bowel habit, lower abdominal pain, bloating, or distention suggestive of IBS), as determined by Rome III criteria.

You may not qualify if:

  • previous GI malignancy and/or surgery;
  • clinically significant cardiovascular, respiratory, endocrine, renal, hematologic or hepatic disease.
  • other clinically significant medical condition; pregnancy or lactation; alcohol abuse; drug addiction; severe neurologic or psychiatric disorders; long-term use of corticosteroids or anti-inflammatory drugs
  • participation in another clinical trial within 6 months before the onset of this trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Irritable Bowel SyndromeCeliac Disease

Condition Hierarchy (Ancestors)

Colonic Diseases, FunctionalColonic DiseasesIntestinal DiseasesGastrointestinal DiseasesDigestive System DiseasesMalabsorption SyndromesMetabolic DiseasesNutritional and Metabolic Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Double blind placebo controlled Gluten Sensitivity
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof

Study Record Dates

First Submitted

July 11, 2018

First Posted

August 20, 2018

Study Start

January 1, 2014

Primary Completion

December 31, 2016

Study Completion

December 31, 2017

Last Updated

August 20, 2018

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will not share