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Carbon-13 (13C)-Spirulina Platensis Gastric Emptying Breath Test (GEBT)

NCT01248221 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2013-03-18

Study results available
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Summary

The purpose of this study is to compare stomach emptying using 13C-Spirulina platensis breath test and scintigraphy in healthy subjects and subjects with dyspepsia.

Subjects will eat a standard meal of 2 scrambled eggs, a slice of wheat toast and 8 ounces of skim milk. The eggs will be double labeled with Technetium-99m (99mTc) sulfur colloid and 13C-Spirulina platensis.

Scintigraphy is a diagnostic technique in which a two-dimensional picture of internal body tissue is produced through the detection of radiation emitted by a radioactive substance administered into the body. The location of a standard meal in the digestive system will be measured by images of the 99mTc sulfur colloid taken at periodic intervals before and after the standard meal. The 99mTc Sulfur Colloid is approved by the FDA for use in medical diagnostic procedures.

Spirulina platensis is blue - green algae, which is very similar to the naturally occurring spirulina sold in health food stores as a dietary supplement. The spirulina platensis has been labeled with the 13C stable isotope. 13C stable isotope labeling is inherently safe as 1.1% of all carbon in our bodies and in the food we eat is 13C. The presence of the 13C will be measured by breath samples at periodic intervals before and after a standard meal. The FDA considers 13C-Spirulina platensis to be investigational for the purposes of this study.

Conditions

  • Dyspepsia

Interventions

DRUG

[13C]-Spirulina platensis and 99mTc sulfur colloid

The subject will consume the test meal containing 13C-Spirulina and 99mTc sulfur colloid in no more than 10 minutes. Scintigraphic image acquisition will be obtained upon completion of the meal and at 15, 30, 45, 60, 90, 120, 150, 180, and 240 minute time points. Breath samples will be collected at baseline before the test meal is started and thereafter on the same time schedule as the scintigraphic procedure.

Sponsors & Collaborators

  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

    collaborator NIH

  • National Center for Research Resources (NCRR)

    collaborator NIH

  • Advanced Breath Diagnostics, LLC

    collaborator UNKNOWN

  • Mayo Clinic

    lead OTHER

Principal Investigators

  • Adil E Bharucha, MBBS, M.D. · Mayo Clinic

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2010-12-31
Primary Completion
2011-12-31
Completion
2011-12-31

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01248221 on ClinicalTrials.gov