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AllergyARIESNCT04186949

Early Origins of Allergy and Asthma

An observational study of Allergy and Asthma, run by Pontificia Universidad Catolica de Chile at 1 site in Chile.

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

Birth cohort study with recruitment during pregnancy to determine prenatal and perinatal conditions, as well as genetic and epigenetic factors, that participate in the early setting of immune responses, and the role of these in the later determination of the risk of allergic diseases, asthma, and metabolic conditions… Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Allergy, Asthma, Food Allergy
How many people
273 participants
Where
1 siteChile
Study dates
9 Oct 2018to 31 Dec 2022
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 Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: Pregnant women living in Chile's central regions (i.e. mothers), their partners (i.e. fathers), and their offspring.

Who may be able to join

  • Pregnant women living in Chile's central regions
  • Offspring of women recruited in the cohort study

Who cannot join

  • None

Trial locations and contacts

1 site in 1 country.

Chile1 site
  • Pontificia Universidad Católica de Chile

    Santiago, RM, 8330077

Other trials in Chile

About this study

Birth cohort study with recruitment during pregnancy to determine prenatal and perinatal conditions, as well as genetic and epigenetic factors, that participate in the early setting of immune responses, and the role of these in the later determination of the risk of allergic diseases, asthma, and metabolic conditions in the offspring.

Read the detailed description

Despite recent advances in the understanding of the pathogenesis of allergies and asthma, these diseases still have no clear preventative measures or curative treatments. Growing evidence shows that atopic dermatitis (AD), food allergy (FA), allergic rhinitis, and asthma are largely determined during the first 1000 days (time elapsed from conception to the 2nd birthday). This cohort aims to determine prenatal and perinatal conditions, as well as genetic and epigenetic factors, that participate in the early setting of immune responses, and the role of these in the later determination of the risk of allergic diseases, and asthma in the offspring.

The investigators have designed a birth cohort of 250 families with recruitment in pregnancy (~14 weeks). The plan is to genotype relevant allergy/asthma-associated variants and will perform immunophenotyping and evaluation of allergy biomarkers in cord blood. At 2 years of age the investigators will assess if infants have developed allergic sensitization, AD, FA, as well as biomarkers of asthma including the asthma predictive index. The study will also evaluate how maternal conditions modify immune programming through epigenetic modifications, and will then confirm newborn epigenetic cues of allergy/asthma risk. Next, the investigators will assess composition/diversity of maternal gut, placenta, breastmilk and infant gut microbiome and their association with immunophenotype and biomarkers at birth, and clinical outcomes at age 2. Finally, another specific objective is to assess how environmental exposures (perinatal outdoor and indoor pollution, endotoxin and allergens) affect the incidence of allergic sensitization, AD, FA, and risk of asthma.

Keywords
birth cohort, Chile
Medical subject headings
Hypersensitivity, Asthma, Food Hypersensitivity, Dermatitis, Atopic

What is being measured

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

  1. Development of allergic diseases in offspring

    Atopic dermatitis, food allergy, allergic sensitization, predicted increased risk of asthma

    Measured: 2 years

Timeline

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

  1. First posted5 Dec 2019
  2. Study start9 Oct 2018
  3. Primary completion31 Dec 2022
  4. Study completion31 Dec 2022

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
Prospective
Enrolment
273 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04186949
Sponsor's protocol ID
ACT172097
Other IDs
170925013
Acronym
ARIES
Status last verified
Mar 2023
First submitted
3 Dec 2019
Last updated
7 Feb 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hernandez CD, Casanello P, Harris PR, Castro-Rodriguez JA, Iturriaga C, Perez-Mateluna G, Farias M, Urzua M, Hernandez C, Serrano C, Sandoval M, Hoyos-Bachiloglu R, Uauy R, Borzutzky A. Early origins of allergy and asthma (ARIES): study protocol for a prospective prenatal birth cohort in Chile. BMC Pediatr. 2020 Apr 15;20(1):164. doi: 10.1186/s12887-020-02077-x.

    PubMed 32293348

Questions about this trial

What is this clinical trial studying?

An observational study of Allergy and Asthma, run by Pontificia Universidad Catolica de Chile at 1 site in Chile.

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 2 inclusion and 1 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 7 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Chile. 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?

Development of allergic diseases in offspring (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04186949, which also lists 1 linked publication.

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 7 Feb 2024.

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