Measuring Cowpea Consumption in Young Children and Pregnant Women in Ghana

Not Applicable

Completed

• Conditions: Dietary Exposure
• Interventions: Dietary Supplement: cowpea variety #1; Dietary Supplement: cowpea variety #2

• Registration Number: NCT04103294
• Lead Sponsor: Washington University School of Medicine

Brief Summary

Current dietary assessment methods rely on self-report food intake such as food frequency questionnaires, 24-hr dietary recall, or diet diaries, and the prevalence of misreporting with these tools is estimated at 30-88%.A reliable and convenient way to measure the quantity of cowpea consumed by an individual. The hope is to identify a novel set of dietary biomarkers that will measure cowpea consumption, be free from participant recall bias, and serve to quantify legume intake. A total of 40 subjects, 20 children (9-21 months) and 20 pregnant women (\>18 yr) will consume 3 distinct daily intake dosages of cooked cowpeas with the daily intake increased every 5 days. Urine samples will be collected 3 times during each 5-day period and blood spots will be collected during a washout period and at the end of the final 5-day period. Urine samples will undergo metabolite detection via ultra-performance liquid chromatography tandem mass spectrometry in positive and negative ion mode. Peaks are quantified using area-under-the-curve (AUC) and each metabolite is quantified in terms of its median-scaled relative abundance for the metabolite across the entire data set. A repeated measures 2-way ANOVA will be used to compare cowpea metabolite abundances over time and with respect to variation in an individual baseline levels.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study First Submitted: 2019-06-12
• Study Start: 2019-07-25
• Status Verified: 2019-09
• Primary Completion: 2019-09-16
• Study Completion: 2019-09-16
• Study First Submitted QC: 2019-09-24
• Last Update Submitted: 2019-09-24
• Study First Posted: 2019-09-25
• Last Update Posted: 2019-09-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 47

Inclusion Criteria

• Healthy children between the ages of 9-21 months and pregnant women > 18 years of age and between 20-25 weeks of gestation.

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Exclusion Criteria

• Children with acute malnutrition, congenital abnormalities, chronic debilitation disease such as heart disease, cerebral palsy, or HIV infection. For the pregnant women they should also be free from acute malnutrition, without known complications such as gestational diabetes, pre-eclampsia, gestational diabetes, or hypertension

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
cowpea variety #1	cowpea variety #1	25g of cowpea daily for days 6-10, 50g of cowpea daily for days 11-15 and then 75g of cowpea daily for days 16-20. The pregnant women will receive 50g of cowpea daily for days 6-10, 100g of cowpea daily for days 11-15 and then 150g of cowpea daily for days 16-20
cowpea variety #2	cowpea variety #2	25g of cowpea daily for days 6-10, 50g of cowpea daily for days 11-15 and then 75g of cowpea daily for days 16-20. The pregnant women will receive 50g of cowpea daily for days 6-10, 100g of cowpea daily for days 11-15 and then 150g of cowpea daily for days 16-20

Primary Outcome Measures

Name	Time	Method
Metabolomic profiling of Urine and Plasma	20 days	The study will look at the levels of cowpea metabolite in urine after 20 days of consuming a diet with different cowpeas. Comparing the level of metabolites in urine at the end of study with the start after the participant consumes no cowpea for 5 days after enrollment.

Trial Locations

Locations (1)

College of Health Sciences, University of Ghana; 🇬🇭 Accra, Mion And Nanton District, Ghana