Multi-Omic Profiling of a Zinc-Biofortified Maize Intervention in Guatemalan Mothers and Children
Crop-Derived Bioactive Compounds for Improved Gut Health and Nutrition
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Departamento de Guatemala
-
Guatemala City, Departamento de Guatemala, Guatemala, 01011
- Institute of Nutrition of Central America And Panama (INCAP)
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
Tager imod sunde frivillige
Beskrivelse
Household Inclusion Criteria:
- Reside in the target area (Chiquimula Department, Guatemala);
- Participating in the World Vision (WV) nutrition program;
- Families accustomed to consuming maize;
- Interest to participate in an informative session;
- Presence of at least one woman of reproductive age (18-49 years) and one index child (12-59 months);
- Access to a mobile phone; (7) No concurrent participation in other nutrition or food aid programs.
Household exclusion Criteria:
- Women with problems understanding the study informed consent and the study survey;
- Women with any acute or chronic disease that affected dietary intake or nutritional status;
- Children with acute malnutrition 4.Children with any acute or chronic disease that affected dietary consumption or nutritional status;
- Households that failed to adhere to the study protocol during the previous intervention period (e.g., sold the study maize or diverted it for animal feed).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: F3 Biofortified Maize
16 households (mothers and children) received zinc-biofortified maize seed (F3) for planting and maize consumption as part of their daily diet (Phase I).
Due to implementation challenges (harvest failure due to drougth), the intervention was changed to delivery to zinc-biofortified maize grain for consumption (Phase II).
|
Daily consumption of zinc-biofortified maize (F3) for up to 10 months.
|
|
Aktiv komparator: Conventional Maize (Control)
14 households (mothers and children) planted regular maize (Phase I).
Due to implementation challenges (harvest failure due to drougth), the intervention was changed to delivery of regular maize grain for consumption (Phase II).
|
Daily consumption of conventional maize for the duration of the study.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Cellular Zinc Status (LA:DGLA Ratio)
Tidsramme: Up to 10 months (Sept 2022 (baseline) thru August 2023 (final assessment))
|
Physiological zinc status measured via red blood cell (RBC) long-chain fatty acid analysis, specifically the linoleic acid to dihomo-gamma-linolenic acid (LA:DGLA) ratio
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Up to 10 months (Sept 2022 (baseline) thru August 2023 (final assessment))
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Iron Status
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
Hemoglobin and Serum Ferritin levels (adjusted and unadjusted for inflammation)
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Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
|
Systemic Inflammation
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
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Measured via high-sensitivity C-reactive protein (hsCRP)
|
Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
|
Gut Microbiota
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
Characterization of fecal microbiota using 16S rRNA sequencing
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Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
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Fecal Calprotectin
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
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Measurement of fecal calprotectin as a marker of intestinal inflammation.
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Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
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Fecal Fatty Acid Profiles
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
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Quantification of short-chain fatty acids (SCFA) and branched-chain fatty acids (BCFA) in stool samples.
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Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
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Nutritional Biomarkers
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
Serum Vitamin B12 and Serum Albumin levels.
|
Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Elad Tako, PhD, Cornell University
- Ledende efterforsker: Manolo Mazariegos, Institute of Nutrition of Central America and Panama
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2108010502
- CIE-REV 115-2022 (Anden identifikator: INCAP Ethics Committee)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
IPD-delingstidsramme
IPD-delingsadgangskriterier
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
- CSR
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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