Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04017585
Other study ID # Policlinic Hospital 5, Bari
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date April 8, 2019
Est. completion date October 30, 2019

Study information

Verified date December 2019
Source University of Bari
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of our study will be to establish in how many subjects with gastrointestinal symptoms and previous diagnosis of irritable bowel syndrome (IBS), the clinical picture is attributable to non celiac gluten sensitivity (NCGS) or fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) intolerance. For this purpose, all subjects with IBS will take a low FODMAPs diet, which implies the absence of cereals and consequently of gluten, and those presenting symptom improvement during this dietary treatment, will be exposed to a double-blind gluten or placebo challenge, to make a diagnosis of NCGS.


Description:

Study design:

For this study, patients with diagnosis of IBS performed by Rome IV criteria and followed as outpatients at the Clinical Nutrition Clinic of "Petrucciani" Nursing Home of Lecce (LE), Italy, will be enrolled.

At baseline, the enrolled subjects will follow a balanced normal-caloric low-FODMAP and gluten-free diet for a period of 4 weeks. At the end of the 4 weeks patients who did not experience an improvement in symptoms will be considered "non-responders" and discontinue the clinical trial. Only those subjects who had showed a significant improvement in symptoms, will be enrolled for the phase 2 of the study that includes a challenge with gluten or with placebo, as described by the Salerno criteria.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date October 30, 2019
Est. primary completion date September 30, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria:

- a gluten-containing diet for at least six months before enrollment

- anti-transglutaminase antibodies (IgA and IgG) absence

- normal serum IgA levels

- prick and specific IgE tests for wheat allergy negative

Exclusion Criteria:

- celiac disease

- wheat allergy

- chronic intestinal inflammatory diseases

- psychiatric disorders

- major abdominal surgery (in particular intestinal resections)

- diabetes mellitus

- previous anaphylactic episodes

- gluten-free diet in the previous six months

- pregnant or lactating women.

Study Design


Intervention

Dietary Supplement:
diet containing gluten
gluten will be added for 7 days to the low FODMAP/gluten free diet diet. After 1 week of wash-out, patients will switch (cross-over) to placebo for another 7 days
Diet containing placebo
Placebo will be added for 7 days to the low FODMAP/gluten free diet diet. After 1 week of wash-out, patients will switch (cross-over) to gluten for another 7 days

Locations

Country Name City State
Italy Michele Barone Bari BA

Sponsors (1)

Lead Sponsor Collaborator
University of Bari

Country where clinical trial is conducted

Italy, 

References & Publications (8)

Calasso M, Francavilla R, Cristofori F, De Angelis M, Gobbetti M. New Protocol for Production of Reduced-Gluten Wheat Bread and Pasta and Clinical Effect in Patients with Irritable Bowel Syndrome: A randomised, Double-Blind, Cross-Over Study. Nutrients. 2 — View Citation

Carroccio A, Rini G, Mansueto P. Non-celiac wheat sensitivity is a more appropriate label than non-celiac gluten sensitivity. Gastroenterology. 2014 Jan;146(1):320-1. doi: 10.1053/j.gastro.2013.08.061. Epub 2013 Nov 22. — View Citation

Catassi C, Alaedini A, Bojarski C, Bonaz B, Bouma G, Carroccio A, Castillejo G, De Magistris L, Dieterich W, Di Liberto D, Elli L, Fasano A, Hadjivassiliou M, Kurien M, Lionetti E, Mulder CJ, Rostami K, Sapone A, Scherf K, Schuppan D, Trott N, Volta U, Ze — View Citation

Catassi C, Elli L, Bonaz B, Bouma G, Carroccio A, Castillejo G, Cellier C, Cristofori F, de Magistris L, Dolinsek J, Dieterich W, Francavilla R, Hadjivassiliou M, Holtmeier W, Körner U, Leffler DA, Lundin KE, Mazzarella G, Mulder CJ, Pellegrini N, Rostami — View Citation

Drossman DA. Functional Gastrointestinal Disorders: History, Pathophysiology, Clinical Features and Rome IV. Gastroenterology. 2016 Feb 19. pii: S0016-5085(16)00223-7. doi: 10.1053/j.gastro.2016.02.032. [Epub ahead of print] — View Citation

Jones AL. The Gluten-Free Diet: Fad or Necessity? Diabetes Spectr. 2017 May;30(2):118-123. doi: 10.2337/ds16-0022. — View Citation

Junker Y, Zeissig S, Kim SJ, Barisani D, Wieser H, Leffler DA, Zevallos V, Libermann TA, Dillon S, Freitag TL, Kelly CP, Schuppan D. Wheat amylase trypsin inhibitors drive intestinal inflammation via activation of toll-like receptor 4. J Exp Med. 2012 Dec — View Citation

Van den Houte K, Carbone F, Pannemans J, Corsetti M, Fischler B, Piessevaux H, Tack J. Prevalence and impact of self-reported irritable bowel symptoms in the general population. United European Gastroenterol J. 2019 Mar;7(2):307-315. doi: 10.1177/20506406 — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Identification of FODMAP intollerance in IBS subjects To evaluate the FODMAP intolerance, the response to a low FODMAP diet will be assessed by a visual analogue scale (VAS) before and after the dietary challenge. The VAS scale consists in is a straight horizontal line of fixed length, usually 100 mm. The ends are defined as the extreme limits of the parameter to be measured (symptoms, pain, subjective feeling of well-being/malaise) orientated from the left (worst) to the right (best) The patient is invited to indicate a position (a point) along the line. 4 weeks
Primary Identification of NCGS in IBS subjects who responded to low FODMAPs diet To evaluate the NCGS, the response to the gluten challenge will be assessed by a visual analogue scale (VAS) before and after the dietary challenge. The VAS scale consists in is a straight horizontal line of fixed length, usually 100 mm. The ends are defined as the extreme limits of the parameter to be measured (symptoms, pain, subjective feeling of well-being/malaise) orientated from the left (worst) to the right (best) The patient is invited to indicate a position (a point) along the line. 3 weeks
See also
  Status Clinical Trial Phase
Completed NCT03720314 - Microbiota Profiling in IBS
Recruiting NCT06166563 - Exercise, Irritable Bowel Syndrome and Fibromyalgia N/A
Completed NCT05213910 - Study of a Management Strategy of Functional Bowel Disordes Related to Irritable Bowel Syndrome (IBS) With a Mixture of 8 Microbiotic Strains N/A
Recruiting NCT05985018 - Traditional Dietary Advice Vs. Mediterranean Diet in IBS N/A
Completed NCT04486469 - Efficacy of Physiotherapy Techniques on Irritable Bowel Syndrome (IBS). Pilot Study. N/A
Completed NCT06407609 - Positive Outcomes of the Supplementation With Lecithin-based Delivery Form of Curcuma Longa and of Boswellia Serrata in IBS N/A
Completed NCT04656730 - Effect of STW5 (Iberogast ®) and STW5-II (Iberogast N®) on Transit and Tolerance of Intestinal Gas Phase 4
Completed NCT04145856 - Combination of Alverine-simeticone and i3.1 Probiotic in IBS-D and IBS-M in Mexico Phase 4
Recruiting NCT04138225 - The Ecological Role of Yeasts in the Human Gut
Active, not recruiting NCT03586622 - One Year Home Monitoring and Treatment of IBS Patients N/A
Completed NCT05207618 - Utility of the Administration of Chesnut and Quebracho Extract for Irritable Bowel Syndrome Diarrhea Predominant N/A
Not yet recruiting NCT06369753 - Visible Abdominal Distension N/A
Not yet recruiting NCT05157867 - In Vivo Effects of Amylase Trypsin Inhibitors N/A
Not yet recruiting NCT05100719 - The Role of Irritable Bowel Syndrome in Lactose Intolerance (LION) N/A
Recruiting NCT05001997 - Effects of Lactose-free Dairy Products on Athletes With Irritable Bowel Syndrome N/A
Recruiting NCT02953171 - Probiotics in the Treatment of Irritable Bowel Syndrome N/A
Completed NCT02977975 - Lacto-fermented Sauerkraut in the Treatment of Irritable Bowel Syndrome N/A
Completed NCT03266068 - Epidemiology and Pathophysiology of Post-Infectious Functional GI Disorders
Completed NCT03318614 - Bifidobacterium Infantis M-63 Improves Mental Health in Irritable Bowel Syndrome Developed After a Major Flood Disaster Phase 2/Phase 3
Completed NCT02980406 - The Role of FODMAPs in Upper GI Effects, Colonic Motor Activity and Gut-brain Signaling at the Behavioral Level N/A