The Reduction in Glucose Stimulated Insulin Secretion Induced by Cytokines May be Prevented by Copper Addition - Studies in Diabetic Patients

February 17, 2009 updated by: Hadassah Medical Organization

This Study is a Small Preliminary Study to Evaluate the Possibility of Performing a Phase 1 Study.

In the CDs rat model, beta-cell dysfunction and pancreatic exocrine damage are triggered and prevented by altering dietary Cu content suggesting a chronic and acute role for Cu. These abnormalities become apparent when the CDs rats are exposed to high sucrose low copper diet, triggering a vicious sequence of events: exocrine damage, recruitment of macrophages expressing IL-1beta leading to oxidative stress and even more reduction in the activity of Cu-dependent enzymes (chronic effect). When Cu levels are re-established (acute effect) they may prevent the inhibitory effect of IL-1beta on insulin release and may restore the activity of enzymes inhibited by IL-1beta. In this study we will identify humans with marginal Cu status that may benefit from copper supplementation to normalize their GSIS. These patients will be given a daily Cu supplement (3mg/d), or placebo for a period of 6 months. GSIS, pancreatic dysfunction and biomarkers of marginal Cu status will be measured in different blood components before and every 4 weeks during treatments or placebo.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

100

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Israel
      • Jerusalem, Israel, 91120
        • Diabetes Unit, Hadassah Medical Organization

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

30 years to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • diabetic subjects with BMI < 33
  • HbA1C < 8
  • plasma copper levels of < 90 ul/dl

Exclusion Criteria:

  • patients with bad physical conditions

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: PREVENTION
  • Allocation: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Identify humans with marginal Cu status that may benefit from copper supplementation and normalize their GSIS.
Time Frame: 6 months
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Hadassah Medical Organization

Investigators

  • Principal Investigator: Itamar Raz, Prof, Hadassah Medical Organization

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2009

Primary Completion (ANTICIPATED)

September 1, 2010

Study Completion (ANTICIPATED)

December 1, 2010

Study Registration Dates

First Submitted

February 17, 2009

First Submitted That Met QC Criteria

February 17, 2009

First Posted (ESTIMATE)

February 18, 2009

Study Record Updates

Last Update Posted (ESTIMATE)

February 18, 2009

Last Update Submitted That Met QC Criteria

February 17, 2009

Last Verified

February 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0136-08-HMO

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.

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