Radiation Dose in Humans From Orally Administered Tc99m-Heparin

NCT ID: NCT04069429

Last Updated: 2021-05-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

EARLY_PHASE1

Total Enrollment

8 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-07-31

Study Completion Date

2020-10-31

Brief Summary

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This is a research study of a new agent used for evaluation of inflammation in the GI tract. This agent is investigational and thus is being studied to determine appropriate dosing and administration in both normal controls (i.e. people without gastrointestinal complaints) and patients with eosinophilic disease (i.e. those with an immune reaction and inflammation in their bodies with a certain cell called an eosinophil).

The study will test whether the radiolabeled agent will bind to the inflammation of eosinophilic esophagitis patients because an animal model of eosinophilic esophagitis which shows the striking deposition of eosinophil granule proteins is not available.

Detailed Description

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Conditions

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Eosinophilic Esophagitis

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

dose assessment of orally administration of Tc99m-Heparin in healthy control and Eosinophilic Esophagitis patients
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Healthy Controls

7 controls (subjects without GI symptoms and known GI disease), subjects will receive the radiopharmaceutical agent orally

Group Type EXPERIMENTAL

Computerized Tomography scan

Intervention Type RADIATION

imaging scan from a person's eyes to their thighs

Single Photon Emission Computed Tomography scans

Intervention Type RADIATION

imaging scan taken during, and after, the administration of the radioactive agent

Technetium Tc 99M

Intervention Type DRUG

subjects are administered radioactive heparin as part of study participation.

Planar Images

Intervention Type RADIATION

2 dimensional imaging - whole body planar scans

Esophagogastroduodenoscopy

Intervention Type PROCEDURE

esophagogastroduodenoscopy with tissue biopsies

Eosinophilic Esophagitis Patients

10 patients with diagnosed EoE (greater than 15 eosinophils per HPF) on esophageal biopsy will be included as the diseased population, subjects will receive the radiopharmaceutical agent orally

Group Type EXPERIMENTAL

Computerized Tomography scan

Intervention Type RADIATION

imaging scan from a person's eyes to their thighs

Single Photon Emission Computed Tomography scans

Intervention Type RADIATION

imaging scan taken during, and after, the administration of the radioactive agent

Technetium Tc 99M

Intervention Type DRUG

subjects are administered radioactive heparin as part of study participation.

Planar Images

Intervention Type RADIATION

2 dimensional imaging - whole body planar scans

Esophagogastroduodenoscopy

Intervention Type PROCEDURE

esophagogastroduodenoscopy with tissue biopsies

Interventions

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Computerized Tomography scan

imaging scan from a person's eyes to their thighs

Intervention Type RADIATION

Single Photon Emission Computed Tomography scans

imaging scan taken during, and after, the administration of the radioactive agent

Intervention Type RADIATION

Technetium Tc 99M

subjects are administered radioactive heparin as part of study participation.

Intervention Type DRUG

Planar Images

2 dimensional imaging - whole body planar scans

Intervention Type RADIATION

Esophagogastroduodenoscopy

esophagogastroduodenoscopy with tissue biopsies

Intervention Type PROCEDURE

Other Intervention Names

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CT scan SPECT scans Radioactive Heparin

Eligibility Criteria

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Inclusion Criteria

* 10 patients with diagnosed EoE (greater than 20 eosinophils per HPF) on esophageal biopsy will be included as the diseased population
* 7 controls (subjects without GI symptoms and known GI disease)

Exclusion Criteria

* bleeding diathesis or contraindication to esophageal biopsies
* severe sleep apnea
* incarceration
* pregnancy
* inability to lie flat for 2 hours
* history of bleeding disorder
* Use of steroids
* Breast feeding
* Allergy to heparin or history of severe reaction to heparin
* allergy to mucomyst or severe asthma
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Utah

OTHER

Sponsor Role lead

Responsible Party

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Gerald J. Gleich

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Gerald Gleich, MD

Role: PRINCIPAL_INVESTIGATOR

University of Utah

Locations

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University of Utah

Salt Lake City, Utah, United States

Site Status

Countries

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United States

Other Identifiers

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IRB_00058734

Identifier Type: -

Identifier Source: org_study_id

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