- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04499742
Comparative Assessment of Radioisotope Glucose and Breath Test
Does Rise in Breath Hydrogen During Endoscopically Assisted Glucose Breath Test (EAGBT) Correlate With Radio-Isotope Location in Small Bowel: Improving Detection of Distal SIBO
Study Overview
Status
Conditions
Detailed Description
Small intestinal bacterial overgrowth (SIBO) is characterized by bloating, gas, distention, and diarrhea due to colonization and an excessive amount of bacteria in the small bowel. Distal SIBO is the presence of excessive amounts of bacteria in the distal jejunum and/or ileum. Diagnosis of SIBO requires either duodenal aspirate with culture analysis or more commonly with breath hydrogen/methane testing. Hydrogen breath testing often uses either oral glucose or lactulose solutions. If bacteria are present in the small bowel they will ferment glucose or lactulose, producing hydrogen or methane as a byproduct. These gases are absorbed into the bowel, and then eliminated via pulmonary expiration. By detecting a rise in breath H2 and CH4 values compared to baseline, SIBO can be diagnosed. However, after oral ingestion, the majority of the glucose substrate is absorbed in the duodenum and proximal jejunum. Therefore, Glucose breath test (GBT) is good for the detection of proximal SIBO, but misses distal SIBO.
Investigators have recently shown that glucose administration into the distal duodenum through upper endoscopy has a higher positive yield for SIBO in patients with negative oral GBT. However, it is unclear if the rise in breath H2 or CH4 is because of glucose fermentation by bacteria in the distal small bowel or from fermentation by bacteria in the colon, i.e. false-positive test. Study objective here is to administer a radio-labeled glucose solution into the duodenum via an endoscopically placed nasoduodenal tube, and then determine if the rise in breath hydrogen and/or methane correlates with the location of the isotopic glucose solution in the bowel by simultaneous nuclear imaging. Results of breath testing will also be compared with duodenal aspirate/cultures taken at the time of endoscopy. Clinical response to treatment will be assessed on follow up.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
-
-
Georgia
-
Augusta, Georgia, United States, 30912
- Recruiting
- Augusta University Digestive Health Research
-
Contact:
- Audrey Eubanks, BS
- Phone Number: 7067211968
- Email: aueubanks@augusta.edu
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients with recent gas, bloating, distension, and suspected SIBO
- Negative oral GBT
- 18 years and older
Exclusion Criteria:
- Pregnancy
- Diabetes
- Previous abdominal surgery except cholecystectomy, appendectomy
- Diet prep non-adherence
- Smoking or exercise causing hyperventilation prior to exam
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Correlation between GBT result and isotope detection in small bowel
Time Frame: February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
Overall correlation (positive and negative) between the location of glucose isotope in small bowel (imaging) and changes in in hydrogen and methane values obtained during the breath test.
|
February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic yield of EAGBT compared to oral GBT
Time Frame: February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
We will compare the yield (positive, negative and overall) of endoscopic assisted GBT versus orally administered GBT
|
February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
Diagnostic yield of EAGBT compared to duodenal aspirate and culture
Time Frame: February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
We will compare the positive and negative yield of EAGBT with the positive (>1000 CFU/ml) or negative yield of aerobic and anaerobic cultures.
|
February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
Symptom patterns and demographics
Time Frame: February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
Compare the gas and bloating symptom patterns, clinical characteristics predisposing factors including underlying dysmotility and other demographic features between patients with positive and negative EAGBT and cultures.
|
February 6, 2019 (anticipated) - December 14, 2021 (anticipated)
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Satish Rao, MD, PhD, Augusta University
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1328690
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Small Intestinal Bacterial Overgrowth
-
Augusta UniversityCompletedColectomy | Small Intestinal Bacterial Overgrowth | Small Intestinal Fungal Overgrowth
-
Envivo Bio IncRecruitingSmall Intestinal Bacterial OvergrowthUnited States
-
McMaster Children's HospitalThe Hospital for Sick ChildrenRecruitingSmall Intestinal Bacterial OvergrowthCanada
-
The Functional Gut ClinicCompletedSmall Intestinal Bacterial OvergrowthUnited Kingdom
-
Atrium InnovationsGenova Diagnostics; Dr. Nathan Morris, MDWithdrawnSmall Intestinal Bacterial OvergrowthUnited States
-
San Antonio Military Medical CenterUnknownSmall Intestinal Bacterial Overgrowth
-
Integrative Skin Science and ResearchBiocidinRecruitingSmall Intestinal Bacterial Overgrowth (SIBO)United States
-
Shanghai 10th People's HospitalCompletedSmall Intestinal Bacterial Overgrowth | Fecal Microbiota TransplantationChina
-
Chinese PLA General HospitalUnknownElderly | Small Intestinal Bacterial Overgrowth | Male | 16s rRNAChina
-
University of FloridaCompletedSmall Intestinal Bacterial Overgrowth Syndrome (SIBO) | Small Bowel Bacterial Overgrowth Syndrome (SBBOS)United States