Pharmacokinetics of Oral Thiamine

September 13, 2011 updated by: Baystate Medical Center

Pharmacokinetics of High Dose Oral Thiamine

Elevated levels of thiamine may increase cellular energy metabolism by increasing the activity of pyruvate dehydrogenase complex. This has been hypothesized to have a beneficial affect in patients with several diseases including sepsis, heart failure, and diabetes. There is limited data on the pharmacokinetics of supraphysiologic doses of oral thiamine.

The aims of this study are to:

  • Calculate the plasma and whole blood pharmacokinetics of supraphysiologic doses of oral thiamine in healthy volunteers;
  • Compare the different thiamine doses on the pharmacokinetic variables using repeated measures ANOVA.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

14

Phase

  • Phase 1

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
    • Massachusetts
      • Springfield, Massachusetts, United States, 01199
        • Baystate Medical Center

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

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age between 18 and 55

Exclusion Criteria:

  • Non dietary thiamine supplement within two weeks of the start of the study or during the study
  • History of thiamine deficiency
  • Anemia (Hgb<10)
  • History of gastrointestinal absorption disorders
  • Taking prescription or over-the-counter medication
  • Pregnant or breast feeding a child
  • Alcohol and or drug abuse
  • Smoker

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: 0 mg Thiamine
Dietary supplement: Placebo
Placebo
Experimental: 100 mg Thiamine
Dietary supplement: Thiamine
Vitamin B1
Experimental: 500 mg Thiamine
Dietary supplement: Thiamine
Vitamin B1
Experimental: 1500 mg Thiamine
Dietary supplement: Thiamine
Vitamin B1

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Area Under the Curve (AUC) for whole blood
Time Frame: predose, 0, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 hours post-dose
predose, 0, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 hours post-dose
Area Under the Curve (AUC) for plasma
Time Frame: predose, 0, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 hours post-dose
predose, 0, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10 hours post-dose

Collaborators and Investigators

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

Sponsor

Baystate Medical Center

Investigators

  • Principal Investigator: Howard Smithline, MD, Baystate Medical Center

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

June 1, 2009

Primary Completion (Actual)

July 1, 2010

Study Completion (Actual)

July 1, 2010

Study Registration Dates

First Submitted

September 7, 2011

First Submitted That Met QC Criteria

September 13, 2011

First Posted (Estimate)

September 14, 2011

Study Record Updates

Last Update Posted (Estimate)

September 14, 2011

Last Update Submitted That Met QC Criteria

September 13, 2011

Last Verified

September 1, 2011

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 132653

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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