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Environmental Pollutants and Their Effects on Respiratory Allergy

2021年5月21日 更新者: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.

研究概览

研究类型

观察性的

注册 (预期的)

93

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

  • 姓名:Cindy E. de Lira-Quezada, MD
  • 电话号码:+52 8110690275
  • 邮箱:ce.dlira@gmail.com

学习地点

    • Nuevo Leon
      • Monterrey、Nuevo Leon、墨西哥、64460
        • 招聘中
        • Regional Center of Allergy and Clinical Immunology, Hospital Universitario "Dr. José Eleuterio González"
        • 接触:

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

6年 及以上 (孩子、成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

取样方法

概率样本

研究人群

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.

描述

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.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Association of respiratory symptoms with exposure to pollutants and pollen
大体时间:1 year
To determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy.
1 year

次要结果测量

结果测量
措施说明
大体时间
Avenues with highest diesel exhaust particles and traffic related particles
大体时间: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
大体时间: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
大体时间: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
大体时间: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

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

合作者

调查人员

  • 研究主任:Sandra N Gonzalez Diaz, MD,PhD、Head of the Allergy and Clinical Immunology Service

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2021年3月10日

初级完成 (预期的)

2021年8月10日

研究完成 (预期的)

2022年8月10日

研究注册日期

首次提交

2021年5月21日

首先提交符合 QC 标准的

2021年5月21日

首次发布 (实际的)

2021年5月26日

研究记录更新

最后更新发布 (实际的)

2021年5月26日

上次提交的符合 QC 标准的更新

2021年5月21日

最后验证

2021年5月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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