Zinc Absorption From Biofortified Rice

June 6, 2013 updated by: Prof. Michael B. Zimmermann, Swiss Federal Institute of Technology

Bioavailability of Zinc From Rice Biofortified With 70Zn and Rice Extrinsically Labeled With 70Zn in Young Adults: a Randomized, Single-blind Study

One of the newest strategies to combat micronutrient deficiencies is the biofortification of staple foods, where higher levels of minerals are obtained through breeding of staple crops. The aim of this study is to evaluate zinc absorption from a rice biofortified with zinc when compared with a control rice fortified with zinc just before consumption.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

16

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

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 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female of 18 to 45 years old
  • Body Mass Index in the range of 19 to 25
  • No mineral and vitamin supplements two weeks prior to the study and during the whole duration of the study

Exclusion Criteria:

  • Any metabolic, gastrointestinal or chronic disease (according to the subjects own statement)
  • Long-term medication during the whole study (except for contraceptives)
  • Pregnancy
  • Lactation
  • Intention to become pregnant during the course of the study
  • Lack of safe contraception
  • Consumption of mineral and vitamin supplements within 2 weeks prior to 1st - Earlier participation in any nutrition study using Zn stable isotopes as well as participation in any other clinical study within the last 30 days and during this study

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

  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Zinc biofortified rice
Other: Zinc biofortified rice
1.12 mg zinc per meal
Active Comparator: Rice extrinsically fortified with zinc
Other: Rice extrinsically fortified with zinc
1.12 mg zinc per meal

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Fractional absorption of zinc
Time Frame: 33 days
Fractional absorption of zinc is estimated by using the double isotope tracer ratio technique by administering 67Zn as oral and 70Zn as intravenous stable isotopes.The urinary enrichment with both isotopes is measured in a spot urine sample by inductively coupled plasma mass spectrometry.
33 days

Collaborators and Investigators

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

Sponsor

Swiss Federal Institute of Technology

Collaborators

University of Zurich

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

June 1, 2012

Primary Completion (Actual)

August 1, 2012

Study Completion (Actual)

October 1, 2012

Study Registration Dates

First Submitted

June 29, 2012

First Submitted That Met QC Criteria

June 29, 2012

First Posted (Estimate)

July 4, 2012

Study Record Updates

Last Update Posted (Estimate)

June 7, 2013

Last Update Submitted That Met QC Criteria

June 6, 2013

Last Verified

June 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HNL/CTC12-Reis

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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