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AllergyNCT05418491

The Prolonged Effect of Consumption of a Partially Hydrolyzed Infant Formula During the First 6 Months of Life on the Development of Allergic Manifestations At 5 Years of Age

An observational study of Allergy, run by FrieslandCampina at 3 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The present study is a 5-year follow-up of the Allergy Reduction Trial (A.R.T.) birth cohort study of 551 infants at high-risk for allergy. The A.R.T. 5-year follow-up study, aims to investigate the prolonged effect of each feeding regimen [formula-fed (exclusively or partially) with the partially hydrolyzed formula… Read more about this study

Who is it for?
Ages 5 years to 63 months
Conditions the study is for
Allergy
How many people
455 participants
Where
3 sitesin 3 countries
Study dates
21 Jul 2022to 31 Jul 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 5 years to 63 months
  • All sexes
  • No healthy volunteers
  • Child

Study population: The target population of the present study are all the A.R.T. subjects who consisted the Intention-to-Treat (ITT) population (N=551).

Who may be able to join

  • Children who were part of the Intention-to-Treat population of the A.R.T. study
  • Children of the A.R.T. study ITT population within the age range of 5 years up to 5 years and 3 months
  • Children of the A.R.T. study ITT population in whom at least one parent and/or legal guardian signed the written consent form

Who cannot join

  • Children who did not participate in the A.R.T. study or who were not assigned to any of the 3 study arms
  • Children of the A.R.T. study who are younger than 5 years of age or older than 5 years and 3 months of age
  • Children of the A.R.T. study in whom parents and/or guardians do not agree to provide a written consent form

Trial locations and contacts

3 sites in 3 countries.

3 sites in 3 countries

Bulgaria1 site
  • Medical University of Varna

    Varna, 9002

Other trials in Bulgaria

Cyprus1 site
  • Asthma and Allergy Centre LTD

    Limassol, 24 Nafpliou Street, 3025

Other trials in Cyprus

Greece1 site
  • Harokopio University

    Athens, Thiseos 70, Kallithea 176 71

Other trials in Greece

About this study

Official title: A Post-intervention Follow-up of the Allergy Reduction Trial, to Investigate the Prolonged Risk Reducing Effect of a Partially Hydrolysed Infant Formula During the First Six Months of Life on Allergic Manifestations Up to the Age of 5 Years

The present study is a 5-year follow-up of the Allergy Reduction Trial (A.R.T.) birth cohort study of 551 infants at high-risk for allergy. The A.R.T. 5-year follow-up study, aims to investigate the prolonged effect of each feeding regimen [formula-fed (exclusively or partially) with the partially hydrolyzed formula (pHF) or the standard formula (SF), or exclusively breastfed] within the first 6 months of life on the development of any allergic manifestations up to the age of 5 years. Allergic manifestations within this time period will include the presence of any of the following: atopic dermatitis, food allergies, respiratory allergies, urticaria, drug allergy and insect venom allergy. In addition, differences on growth (weight, height, BMI) will be examined.

Read the detailed description

The present study is a 5-year follow-up of the Allergy Reduction Trial (A.R.T.) birth cohort study of 551 infants at high-risk for allergy. The A.R.T. 5-year follow-up study, aims to investigate the prolonged effect of each feeding regimen [formula-fed (exclusively or partially) with the partially hydrolyzed formula (pHF) or the standard formula (SF), or exclusively breastfed] within the first 6 months of life on the development of any allergic manifestations up to the age of 5 years. Allergic manifestations within this time period will include the presence of any of the following: atopic dermatitis, food allergies, respiratory allergies, urticaria, drug allergy and insect venom allergy. In addition, differences on growth (weight, height, BMI) will be examined.

Conditions
Allergy
Being tested
No intervention is used in the current study. Interventions were given in the original A.R.T. study
Keywords
post-intervention, allergic manifestations
Medical subject headings
Hypersensitivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • No intervention is used in the current study. Interventions were given in the original A.R.T. studyOther

    The current study is a post-intervention study; interventions were given in the original A.R.T. study

Study groups in NCT05418491
Study groupRoleWhat they receive
Partially hydrolyzed protein Infant formulaOriginating from A.R.T. cohort.
Receives: Other: No intervention is used in the current study. Interventions were given in the original A.R.T. study
Standard infant formulaOriginating from A.R.T. cohort.
Receives: Other: No intervention is used in the current study. Interventions were given in the original A.R.T. study
Exclusively breastfed infantsOriginating from A.R.T. cohort.
Receives: Other: No intervention is used in the current study. Interventions were given in the original A.R.T. study

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of allergic Manifestations

    Incidence of allergic manifestations (AM) based on parental reporting using Childhood Allergy questionnaire comparing partially hydrolyzed protein formula, standard formula and exclusive breastfeeding.

    Measured: At 5 years of age

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jun 2022
  2. Study start21 Jul 2022
  3. Primary completion31 Jul 2024
  4. Study completion31 Jul 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
455 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05418491
Sponsor's protocol ID
A.R.T. Follow-Up
Status last verified
Nov 2024
First submitted
10 Jun 2022
Last updated
13 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Allergy, run by FrieslandCampina at 3 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Bulgaria, Cyprus, Greece. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of allergic Manifestations (time frame: At 5 years of age). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2025.

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