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CompletedNCT00217100Updated Apr 25, 2012

A Multivitamin Comparison Study in Kidney Transplant Recipients.

A Phase 3 interventional study of Multivitamin and Placebo in Kidney Transplant Recipients, sponsored by Mayo Clinic. Completed at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2012-04-25.

Sponsored by Mayo Clinic · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
200
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study is being done to compare arteriosclerotic cardiovascular disease in kidney transplant recipient taking a standard multivitamin versus those taking a multivitamin augmented by a high dose combination of folic acid, vitamin B12, and vitamin B6.

Read the detailed description

This is a multicenter, randomized, double-blind controlled clinical trial. The trial has been designed to determine whether total homocysteine lowering treatment with a standard multivitamin augmented by a multivitamin containing no folic acid B12, and vitamin B6, versus treatment with an identical multivitamin containing no folic acid, will reduce the pooled rate of recurrent or new cardiovascular disease outcomes or events. Participants will have a brief visit, at which the participant will have physical measurements, blood pressure and history taken. Urine and blood tests will be performed to determine the levels of homocysteine, vitamins and creatinine. Qualifying participants will be randomly assigned to receive multivitamins containing a high dose of folic acid, vitamin B6, and vitamin B12, or an identical multivitamin containing no folic acid, and estimated average requirement amounts of vitamin B6 and vitamin B12. The participant will be required to return annually throughout the next five years for physical exams, blood and urine tests.

02

Conditions studied

  • Kidney Transplant Recipients
03

In context

Lead sponsor

Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 670 are open to participants now.

Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Participants with elevated homocysteine levels that are between the ages of 35-75 years old and have had a kidney transplant with stable renal graft function.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
200 participants (actual)

Study arms

  • Active comparator
    Multi Vitamin Formulation

    Dietary Supplement: Multivitamin

  • Placebo comparator
    Sugar pill

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementMultivitamin

    1 tablet a day

  • Dietary supplementPlacebo

    1 tablet a day

06

What researchers measure

Primary outcomes

  1. Estimated Average Requirement (EAR) amounts

    to determine whether total homocysteine (tHcy)-lowering treatment with a standard multivitamin augmented by a high dose combination of folic acid, vitamin B12, and vitamin B6, versus treatment with an identical multivitamin containing no folic acid, and Estimated Average Requirement (EAR) amounts of vitamin B6 and vitamin B12., reduces the pooled rate of recurrent and de novo cardiovascular disease \[CVD\]outcomes

    Time frame: basline to death or common end date 4.5 years

07

Study locations

1 site
  • Mayo Clinic
    Rochester, Minnesota 55905, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 25, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00217100
Lead sponsor
Mayo Clinic
Collaborators
University of Wisconsin, Madison, University of California, San Francisco, University of Alabama at Birmingham, Ohio State University
First posted
Sep 22, 2005
Start date
Oct 2004
Primary completion
Feb 2010
Completion
Feb 2010
Last update
Apr 25, 2012
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2012. You cannot join it, but the record below documents what was studied.

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