Metformin Use and Vitamin B12 Deficiency

July 29, 2013 updated by: Northwell Health
The primary objective is to determine the incidence of Vitamin B12 deficiency in patients on metformin therapy for diabetes.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

89

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

  • United States
    • New York
      • Staten Island, New York, United States, 10305
        • Staten Island University Hospital

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

20 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Outpatient and hospitalized patients with type 2 diabetes mellitus

Description

Inclusion Criteria:Age 20-80; diagnosed with type 2 diabetes for at least 30 days

Exclusion Criteria:known vitamin B12 or folate deficiency; pernicious anemia; on vitamin B12 therapy; hematological malignancy; methotrexate use; alcohol intake greater than two drinks per day; vegetarian diet; previous gastric surgery; inflammatory bowel disease

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

Cohorts and Interventions

Group / Cohort
metformin use
Patients with type 2 diabetes treated with metformin
no metformin use
Patients with type 2 diabetes who are not being treated with metformin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Vitamin B12 level
Time Frame: Single point
Single point

Secondary Outcome Measures

Outcome Measure
Time Frame
methylmalonic acid
Time Frame: single point
single point

Collaborators and Investigators

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

Sponsor

Northwell Health

Investigators

  • Principal Investigator: Neil Cohen, M.D., Staten Island University Hospital

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

August 1, 2007

Primary Completion (Actual)

December 1, 2008

Study Completion (Actual)

December 1, 2008

Study Registration Dates

First Submitted

June 2, 2010

First Submitted That Met QC Criteria

June 2, 2010

First Posted (Estimate)

June 3, 2010

Study Record Updates

Last Update Posted (Estimate)

July 31, 2013

Last Update Submitted That Met QC Criteria

July 29, 2013

Last Verified

July 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 07040

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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