Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Study on the Association Between the Introduction of Complementary Feeding and Infant Gut Microbiome Composition

25 september 2026 bijgewerkt door: University Children's Hospital, Zurich

FamilyFeedBiome Pilot Project: Observational Study on the Association Between the Introduction of Complementary Feeding and the Composition of the Gut Microbiome in Infants

The goal of this observational study is to assess the feasibility of investigating the association between the introduction of complementary feeding and gut microbiome composition in infants. The main question it aims to answer is:

Can we reach the feasibility targets for questionnaire completeness and data quality, the proportion of stool samples suitable for analysis, protocol adherence, and recruitment rate?

Parents will complete questionnaires about their infant's health and nutrition and collect stool samples from their infant at three timepoints around the introduction of complementary feeding.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Gedetailleerde beschrijving

Patient and Public Involvement and Engagement (PPIE) is embedded throughout the planning, conduct and dissemination of this observational study.

Studietype

Observationeel

Inschrijving (Geschat)

20

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

2 maanden tot 7 maanden (Kind)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Bemonsteringsmethode

Niet-waarschijnlijkheidssteekproef

Studie Bevolking

Infants recruited from a pediatric practice and a University Children's Hospital.

Beschrijving

Inclusion Criteria:

  • Healthy infants
  • Formula or breastfed
  • Born at term (≥ 37 weeks gestation)
  • Parents/caregivers willing and able to collect stool samples and complete questionnaires
  • Written informed consent signed by parent or caregiver
  • Parent/caregiver at least 18 years of age

Exclusion Criteria:

  • Preterm infants (< 37 weeks gestation)
  • Infants with congenital or chronic conditions affecting digestion or the immune system
  • Use of antibiotics within the last 4 weeks before start of complementary feeding
  • Food allergies or intolerances that would significantly restrict complementary feeding
  • Parents/caregivers have insufficient proficiency in German to understand study materials and provide informed consent

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Observatiemodellen: COHORT
  • Tijdsperspectieven: PROSPECTIVE

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Feasibility of complete questionnaire data collection
Tijdsspanne: At study completion, approximately 5 months

Percentage of questionnaires completed by recruited families (feasibility target: ≥ 80 %).

At study completion, approximately 5 months
Feasibility of high-quality questionnaire data collection
Tijdsspanne: At study completion, approximately 5 months

Percentage of families for whom no contradictory or inconsistent information is identified across the three questionnaires (feasibility target: ≥ 80 %).

At study completion, approximately 5 months
Feasibility of adherence to questionnaire timepoints
Tijdsspanne: At study completion, approximately 5 months

Percentage of answered questionnaires that comply with the predefined data collection timepoints between start of complementary feeding (CF) and T1, T2 and T3: T1 - CF: 0 - 8 days, CF - T2: 6 - 8 days, CF - T3: 13 - 15 days (feasibility target: ≥ 80 %).

At study completion, approximately 5 months
Feasibility of adherence to stool sample collection timepoints
Tijdsspanne: At study completion, approximately 5 months

Percentage of collected stool samples that comply with the predefined data collection timepoints between start of complementary feeding (CF) and T1, T2 and T3: T1 - CF: 0 - 8 days, CF - T2: 6 - 8 days, CF - T3: 13 - 15 days (feasibility target: ≥ 80 %).

At study completion, approximately 5 months
Feasibility of collecting analyzable stool samples
Tijdsspanne: At study completion, approximately 5 months

Percentage of collected stool samples for which 16S rRNA analysis was successfully completed (feasibility target: ≥ 90 %).

At study completion, approximately 5 months
Feasibility of study participant recruitment
Tijdsspanne: At study completion, approximately 5 months

Recruitment rate will be described as number of recruited study participants per month. Reasons of withdrawal will be reported.

At study completion, approximately 5 months

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Feasibility of PPIE activities assessed by the project leader using the Public and Patient Engagement Evaluation Tool (PPEET) project questionnaire and by the PPIE participants using a modified Patient Engagement in Research Scale (PEIRS) tool.
Tijdsspanne: At study completion, approximately 5 months

The level of involvement achieved will be assessed by the project leader and PPIE participants using single-choice questions in the questionnaires. PPIE activities will be considered feasible if all PPIE activities can be conducted at the predefined level of involvement. Challenges and barriers encountered during the implementation of PPIE activities and their impact on the feasibility of PPIE activities will be assessed descriptively by the project leader and PPIE participants in the questionnaires.

At study completion, approximately 5 months

Andere uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Preliminary data on the association between complementary feeding and gut microbiome composition
Tijdsspanne: 7 days before introduction of complementary feeding, 7 days after introduction of complementary feeding, 14 days after introduction of complementary feeding

Participant's health and dietary characteristics, as well as gut microbiome composition will be summarized at each timepoint using descriptive statistics. Where appropriate, plots will be used to visualize changes over time and patterns in gut microbiome composition. Gut microbiome composition will be described based on the relative abundance of the most common bacteria, microbial diversity within individual samples (α-diversity), and differences in overall microbial community composition between timepoints (β-diversity). Any statistical analyses investigating associations between the introduction of complementary feeding and gut microbiome composition will be considered explanatory and reported using confidence internals. These analyses will not include p-values or support confirmatory conclusions.

7 days before introduction of complementary feeding, 7 days after introduction of complementary feeding, 14 days after introduction of complementary feeding

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 september 2026

Primaire voltooiing (Geschat)

1 januari 2027

Studie voltooiing (Geschat)

1 februari 2027

Studieregistratiedata

Eerst ingediend

9 september 2026

Eerst ingediend dat voldeed aan de QC-criteria

25 september 2026

Eerst geplaatst (Werkelijk)

1 oktober 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

1 oktober 2026

Laatste update ingediend die voldeed aan QC-criteria

25 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • 2026-01319
  • 2026__SG_293 (Ander subsidie-/financieringsnummer: Graduate Campus Universität Zürich)

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .