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Environmental Pollutants and Their Effects on Respiratory Allergy

21. maj 2021 opdateret af: Cindy Elizabeth de Lira-Quezada

Association Between Environmental Pollutants and Their Effects on Respiratory

In Latin America and the Caribbean, more than 100 million people are exposed to higher levels of pollution than those recommended by WHO. The objective of the study is to determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy. It is an observational, prospective, longitudinal and descriptive study that will include subjects older than 6 years who come to the consultation of the Regional Center for Allergy and Clinical Immunology with a diagnosis of respiratory allergy, positive skin tests and who live in Monterrey and its metropolitan area. After verbal assent, the subject's address and work area will be registered, the Rhinitis Control Assessment Test and the Asthma Control Test as well as spirometry will be made. The geolocation of industries and avenues near the address and work area of subjects will be carried out, as well as the determination of pollutants and pollens by the Integral Monitoring System (SIMA) and the Pollen Sense device. Subsequently, the correlation between exposure to pollutants and respiratory allergy will be analyzed. Dispersion models will be built considering pollutants and climatic factors (precipitation, wind speed, humidity and temperature). By carrying out this project, it will be possible to contribute to the identification of the factors that lead to the development and exacerbation of allergic respiratory diseases and subsequently propose the implementation of measures for their control and recommendations for prevention to the population.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Forventet)

93

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Cindy E. de Lira-Quezada, MD
  • Telefonnummer: +52 8110690275
  • E-mail: ce.dlira@gmail.com

Studiesteder

  • Mexico
    • Nuevo Leon
      • Monterrey, Nuevo Leon, Mexico, 64460
        • Rekruttering
        • Regional Center of Allergy and Clinical Immunology, Hospital Universitario "Dr. José Eleuterio González"
        • Kontakt:

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

6 år og ældre (Barn, Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Subjects older than 6 years of age, who attend the Regional Center of Allergy and Clinical Immunology of the University Hospital "Dr. José Eleuterio González "with a diagnosis of respiratory allergy (allergic rhinitis and asthma) and type I immunological hypersensitivity demonstrated by skin tests performed by an allergist and who live in Monterrey or its metropolitan area.

They will be invited to participate in the protocol and if they agree to be included, they will respond to informed verbal consent or assent.

Beskrivelse

Inclusion Criteria:

  • Subjects over 6 years of age who attend the the Regional Center of Allergy and Clinical Immunology of the University Hospital "Dr. José Eleuterio González "with a diagnosis of respiratory allergy (allergic rhinitis and asthma) and type I immunological hypersensitivity demonstrated by skin tests by an allergist; and who live in the city of Monterrey and its metropolitan area.

Exclusion Criteria:

  • Subjects for whom it is not possible to perform a pulmonary function test or who have concomitant diseases such as COPD, heart disease or some other pathology that, in the opinion of the investigator, may cause confusion with respiratory symptoms. Patients with negative skin tests to aeroallergens.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Association of respiratory symptoms with exposure to pollutants and pollen
Tidsramme: 1 year
To determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy.
1 year

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Avenues with highest diesel exhaust particles and traffic related particles
Tidsramme: 1 year
Locate the avenues with the highest flow and vehicular load releasing diesel removal particles (DEP) and traffic-related air pollutants (TRAP).
1 year
Location of the main industries that emit pollutants
Tidsramme: 1 year
Location of the main industries that emit pollutants of particulate matter (PM), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO) and ozone (O3).
1 year
Distance of greater exposure to pollutants
Tidsramme: 1 year
To assess the relationship between the distance to PM, traffic-related air pollutants (TRAP) and diesel exhaust particles (DEP) with the prevalence of respiratory allergy symptoms with home and work address.
1 year
Time of pollutant exposure and association with respiratory symptoms
Tidsramme: 1 year
Evaluate the relationship between the time of exposure to PM, NO2, SO2, O3, traffic-related air pollutants (TRAP) and diesel exhaust particles (DEP) with the prevalence of respiratory allergy symptoms.
1 year

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Cindy Elizabeth de Lira-Quezada

Samarbejdspartnere

Medicina

Efterforskere

  • Studieleder: Sandra N Gonzalez Diaz, MD,PhD, Head of the Allergy and Clinical Immunology Service

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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)

10. marts 2021

Primær færdiggørelse (Forventet)

10. august 2021

Studieafslutning (Forventet)

10. august 2022

Datoer for studieregistrering

Først indsendt

21. maj 2021

Først indsendt, der opfyldte QC-kriterier

21. maj 2021

Først opslået (Faktiske)

26. maj 2021

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

26. maj 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. maj 2021

Sidst verificeret

1. maj 2021

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • AL2100004

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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 Allergisk rhinitis

Kliniske forsøg med pollutants and pollen

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