- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07585318
Multi-Omic Profiling of a Zinc-Biofortified Maize Intervention in Guatemalan Mothers and Children
20. maj 2026 opdateret af: Manolo Mazariegos, Institute of Nutrition of Central America and Panama
Crop-Derived Bioactive Compounds for Improved Gut Health and Nutrition
A trial evaluating the systemic and ecological impact of zinc-biofortified maize consumption on cellular zinc status, inflammatory biomarkers, and gut microbiota composition in a cohort of Guatemalan mothers and children.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
This is a pilot study conducted among a subset of participants in a larger food aid intervention program using biofortified maize (N=499).
This analysis focuses on a highly compliant cohort of 30 households (N=60 individuals) providing high-fidelity multi-omic data.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
60
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
Departamento de Guatemala
-
Guatemala City, Departamento de Guatemala, Guatemala, 01011
- Institute of Nutrition of Central America and Panama (INCAP)
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
Tager imod sunde frivillige
Ja
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
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / 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.
|
Hvad måler undersøgelsen?
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
|
Up to 10 months (Sept 2022 (baseline) thru August 2023 (final assessment))
|
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)
|
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))
|
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
|
Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
|
Fecal Calprotectin
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
Measurement of fecal calprotectin as a marker of intestinal inflammation.
|
Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
|
Fecal Fatty Acid Profiles
Tidsramme: Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
Quantification of short-chain fatty acids (SCFA) and branched-chain fatty acids (BCFA) in stool samples.
|
Up to 10 months (September 2022 (baseline) thru August 2023 (final assessment))
|
|
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
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Elad Tako, PhD, Cornell University
- Ledende efterforsker: Manolo Mazariegos, Institute of Nutrition of Central America and Panama
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. marts 2022
Primær færdiggørelse (Faktiske)
31. august 2023
Studieafslutning (Faktiske)
31. august 2023
Datoer for studieregistrering
Først indsendt
7. maj 2026
Først indsendt, der opfyldte QC-kriterier
7. maj 2026
Først opslået (Faktiske)
13. maj 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
22. maj 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
20. maj 2026
Sidst verificeret
1. maj 2026
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
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)?
JA
IPD-planbeskrivelse
De-identified individual participant data that underlie the results reported in this article (including microbiome sequencing metadata and nutritional biomarkers) will be made available to researchers who provide a methodologically sound proposal.
IPD-delingstidsramme
Beginning 6 months and ending 5 years following article publication.
IPD-delingsadgangskriterier
Data will be available upon request to the corresponding author (Prof.
Elad Tako) to ensure the proposed use is consistent with the original informed consent and ethical approvals.
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
- CSR
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ingen
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
Kliniske forsøg med Zink mangel
-
Damascus UniversityAfsluttetSkelet Maxillary Transversal DeficiencySyrien Arabiske Republik
-
Cairo UniversityIkke rekrutterer endnuSocket Preservation, Alveolar Ridge Deficiency, Alveolar Ridge Preservation
-
GCS Ramsay Santé pour l'Enseignement et la RechercheRekrutteringACL - Anterior Cruciate Ligament DeficiencyFrankrig
-
University Hospital, CaenInstitut National de la Santé Et de la Recherche Médicale, FranceUkendtACL-rivning | ACL - Anterior Cruciate Ligament DeficiencyFrankrig
-
GCS Ramsay Santé pour l'Enseignement et la RechercheRekrutteringACL - Anterior Cruciate Ligament DeficiencyFrankrig
-
OrthoCarolina Research Institute, Inc.AfsluttetACL skade | ACL-rivning | ACL - Anterior Cruciate Ligament DeficiencyForenede Stater
-
Chang Gung Memorial HospitalUkendtACL skade | ACL - Forreste korsbåndsruptur | ACL - Anterior Cruciate Ligament DeficiencyTaiwan
-
Baxter Healthcare CorporationAfsluttetEssential Fatty Acid Deficiency (EFAD)Forenede Stater
-
Steadman Philippon Research InstituteÖssur Iceland ehfTrukket tilbageACL | ACL skade | ACL - Forreste korsbåndsruptur | ACL - Anterior Cruciate Ligament DeficiencyForenede Stater
-
The Hospital for Sick ChildrenBristol-Myers SquibbAfsluttetRefraktære eller tilbagevendende hypermuterede maligniteter | Biallelic Mismatch Repair Deficiency (bMMRD) Positive patienterForenede Stater, Frankrig, Canada, Australien, Israel
Kliniske forsøg med F3 Biofortified Maize
-
IDRIAfsluttet
-
IDRIBill and Melinda Gates FoundationAfsluttetVisceral LeishmaniasisForenede Stater
-
University of Bernki:elementsRekrutteringAldring | Sund frivillig | Depressiv lidelse, svær depressiv lidelseSchweiz
-
Yale UniversityAfsluttet
-
Luye Pharma Group Ltd.Tilmelding efter invitation
-
Institute of Mental Health, SingaporeNational University of SingaporeRekruttering
-
EccogeneRekrutteringMetabolisk dysfunktion-associeret SteatohepatitisAustralien
-
Insmed IncorporatedAfsluttet
-
National Institute of Allergy and Infectious Diseases...Afsluttet
-
Douglas Mental Health University InstituteCentre de recherche CERVO; Centre de Recherche de l'Institut Universitaire... og andre samarbejdspartnereRekrutteringSkizofreni og overvejende negative symptomerCanada