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
-
-
-
Zurich, Switzerland
- ETH Zurich
-
-
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
|
1.12 mg zinc per meal
|
|
Active Comparator: Rice extrinsically fortified with zinc
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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.
Collaborators
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.
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.