NCT01137955

Brief Summary

Celiac disease is a condition in which the small intestine is damaged by gluten, the storage protein of wheat and similar proteins in barley and rye. The disease can cause different symptoms such as diarrhea, bloating, abdominal pain and weight loss. The majority of patients respond to a gluten-free diet. However some patients (5-30%) have persistent symptoms and are considered to be poor responders to the diet. Bacterial overgrowth in the small intestine accounts for some of the refractory patients. This study seeks to determine if antibiotic therapy with rifaximin relieves the symptoms of patients who are poorly responsive to a gluten-free diet and whether this impacts their breath test results.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2006

Geographic Reach
1 country

1 active site

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

October 1, 2006

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2008

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

June 3, 2010

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 7, 2010

Completed
12.1 years until next milestone

Results Posted

Study results publicly available

June 29, 2022

Completed
Last Updated

June 29, 2022

Status Verified

June 1, 2022

Enrollment Period

1.5 years

First QC Date

June 3, 2010

Results QC Date

June 21, 2011

Last Update Submit

June 6, 2022

Conditions

Keywords

Gastrointestinal Symptom Rating Scale (GSRS)Poorly responsiveRefractorySmall intestine bacterial overgrowthBreath test

Outcome Measures

Primary Outcomes (3)

  • Baseline Gastrointestinal Symptom Rating Scale (GSRS) Score

    Validated seven point questionnaire that assesses gastrointestinal symptoms for five symptom areas, including abdominal pain, reflux, indigestion, diarrhea, and constipation. Individual scores are calculated for each symptom area and the mean of the scores is used to derive an overall GSRS score. Scores range from 0-7, with higher scores indicating gastrointestinal discomfort.

    Baseline (week 0)

  • Week 2 Gastrointestinal Symptom Rating Scale (GSRS) Score

    Validated seven point questionnaire that assesses gastrointestinal symptoms for five symptom areas, including abdominal pain, reflux, indigestion, diarrhea, and constipation. Individual scores are calculated for each symptom area and the mean of the scores is used to derive an overall GSRS score. Scores range from 0-7, with higher scores indicating gastrointestinal discomfort.

    Week 2

  • Week 12 Gastrointestinal Symptom Rating Scale (GSRS) Score

    Validated seven point questionnaire that assesses gastrointestinal symptoms for five symptom areas, including abdominal pain, reflux, indigestion, diarrhea, and constipation. Individual scores are calculated for each symptom area and the mean of the scores is used to derive an overall GSRS score. Scores range from 0-7, with higher scores indicating gastrointestinal discomfort.

    Week 12

Secondary Outcomes (1)

  • Percentage of Participants With Abnormal Breath Test

    Up to 12 weeks

Study Arms (2)

Rifaximin 400mg

EXPERIMENTAL

Antibiotic ,Rifaximin 400mg, given 3 times a day for 10 days.

Drug: Rifaximin

Placebo

PLACEBO COMPARATOR

Placebo pills given 3 times a day for 10 days.

Drug: Placebo

Interventions

Rifaximin 400mg orally three times a day for 10 days total

Also known as: Placebo orally three times a day for 10 days total
Rifaximin 400mg

Placebo orally three times a day for 10 days total

Also known as: Rifaximin 400 mg orally three times a day for 10 days total
Placebo

Eligibility Criteria

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

You may qualify if:

  • Adult patients age 18 or older
  • Biopsy proven celiac disease
  • Persistent symptoms of diarrhea, gas, bloating and/or cramping despite a gluten free diet for at least 1 month
  • Women that are not pregnant or lactating can be included. All women must have a documented negative pregnancy test at the initiation of the study. Women who become pregnant during the study will be asked to discontinue the study drug and will be followed up until the outcome of pregnancy is known. Women of child bearing potential must be practicing an effective method of birth control (eg: prescription oral contraceptive, contraceptive injections, intra-uterine device (IUD), double barrier method, contraceptive patch, male sterilization) before entry and throughout the treatment period.

You may not qualify if:

  • antibiotic use for any indication within preceding one month
  • use of bismuth compounds within preceding month
  • concomitant use of pancreatic supplements
  • concomitant use of antispasmodics
  • concomitant use of immunomodulators such as corticosteroids, budesonide, alkylating agents and antimetabolites.
  • concomitant use of probiotics
  • concomitant use of prokinetic agents
  • concomitant use of 5-hydroxytryptamine receptor (5HT3) antagonists,5-hydroxytryptamine receptor (5HT4) antagonists.
  • concomitant use of antimotility agents (e.g loperamide)
  • concomitant use of antidiarrheal agents
  • diagnosed microscopic colitis or inflammatory bowel disease
  • other causes of malabsorption: pancreatic insufficiency, giardiasis and enteropathy associated with T cell lymphoma.
  • other diseases: renal or hepatic insufficiency.
  • pregnant patients and lactating females. In addition women of child bearing age will be excluded if they are not using one of the methods of contraception like oral contraceptives,intrauterine device.
  • and double barrier methods.
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Celiac Disease Center at Columbia University

New York, New York, 10032, United States

Location

Related Publications (1)

  • Chang MS, Minaya MT, Cheng J, Connor BA, Lewis SK, Green PH. Double-blind randomized controlled trial of rifaximin for persistent symptoms in patients with celiac disease. Dig Dis Sci. 2011 Oct;56(10):2939-46. doi: 10.1007/s10620-011-1719-6. Epub 2011 Jun 7.

MeSH Terms

Conditions

Celiac Disease

Interventions

Rifaximin

Condition Hierarchy (Ancestors)

Malabsorption SyndromesIntestinal DiseasesGastrointestinal DiseasesDigestive System DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

RifamycinsHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsLactams, MacrocyclicMacrocyclic CompoundsPolycyclic Compounds

Limitations and Caveats

Small sample size. Challenges of diagnosing bacterial overgrowth.

Results Point of Contact

Title
Dr. Peter Green
Organization
Celiac Disease Center at Columbia University

Study Officials

  • Peter HR Green, MD

    Columbia University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 3, 2010

First Posted

June 7, 2010

Study Start

October 1, 2006

Primary Completion

April 1, 2008

Study Completion

April 1, 2008

Last Updated

June 29, 2022

Results First Posted

June 29, 2022

Record last verified: 2022-06

Locations