The Cohort Study for Asthma in China

Official title

The Cohort Study for Asthma in China: an Prospective Observational Study

Overview

The study is to establish a standardized asthma cohort study, build an information network platform system and a biospecimen bank for asthma cohort, establish clear follow-up standards and norms, observe the asthma outcomes and identify biomarkers to predict asthma outcomes.

Detailed description

This is a single center observational prospective longitudinal cohort study to establish a standardized asthma cohort, consisting of 400 patients with asthma. Baseline data including lung function test, chest CT, induced sputum, etc. was collected and the patients were followed up for 2 or more years. Subjects who met the 2023 GINA diagnostic criteria for asthma and were able to participate in the study according to the protocol and sign the informed consent were included. No additional investigational drugs will be applied to the patients. Blood samples are transported to designated laboratories for safekeeping and biomarker testing. We aimed to explore the mechanism of biomarkers involved in asthma pathogenesis and identify treatable traits related to disease outcome. Full analysis set will be used for all analyses. Missing data will be analyzed as it is. Statistical analysis will be conducted by epidemiology \& statistics work group from Chinese Academy of Sciences, using SAS and SUDAAN software. An electronic data capture system will be used in this study. Paper-based questionnaire administration will also be used. Questionnaire variables will be checked before data entry. During the study, PI will be in charge of the monitoring of the whole procedure. Working group will do the data cleaning and data analyzing.

Interventions

• Diagnostic test Diagnostic Test: lung function test, chest CT, induced sputum, blood routine test, IgE test, FeNO test, six minutes walk test, questionnaires for asthma
  lung function test, chest CT, induced sputum, blood routine test, IgE test, FeNO test, six minutes walk test, questionnaires for asthma were performed. All interventions was made according to routine diagnosis and treatment.

Primary outcome measures

• Asthma Control Test(ACT) [Time frame: 2 years]
• Asthma Control Questionnaire(ACQ) [Time frame: 2 years]
• Induced sputum analysis [Time frame: 2 years]

Secondary outcome measures (1)

• Prognosis prediction of asthma with specific treatment regimen [Time frame: 2 years]

Eligibility criteria

Inclusion criteria

• Age >18
• Meet the 2023 edition of GINA asthma diagnostic criteria
• Subjects must sign informed consent prior to study participation, participate in the study according to the protocol and follow up for 2 years

Exclusion criteria

• Suffering from other massive lung tissue destructive diseases such as severe bronchiectasis and tuberculosis
• Severe pleural disease and/or sternal and rib lesions
• Serious uncontrolled disease of other system
• Thoracic or abdominal surgery in the past 3 months
• Eye surgery in the past three months
• Retina detachment
• Myocardial infarction within the last 3 months
• Hospitalized for heart disease within the past 3 months
• Ongoing anti-tuberculosis treatment
• Pregnancy or breast feeding

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Observational model

Cohort

Study locations

China · 1 center

• Beijing Chao Yang Hospital — Beijing

Publications

• Silverstein NJ, Huh JR. Interleukin-17: Why the Worms Squirm. Immunity. 2017 Mar 21;46(3):347-349. doi: 10.1016/j.immuni.2017.03.007. PMID 28329701
• GBD 2015 Chronic Respiratory Disease Collaborators. Global, regional, and national deaths, prevalence, disability-adjusted life years, and years lived with disability for chronic obstructive pulmonary disease and asthma, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015. Lancet Respir Med. 2017 Sep;5(9):691-706. doi: 10.1016/S2213-2600(17)30293-X. Epub 2017 Aug 16. PMID 28822787
• Huang K, Yang T, Xu J, Yang L, Zhao J, Zhang X, Bai C, Kang J, Ran P, Shen H, Wen F, Chen Y, Sun T, Shan G, Lin Y, Xu G, Wu S, Wang C, Wang R, Shi Z, Xu Y, Ye X, Song Y, Wang Q, Zhou Y, Li W, Ding L, Wan C, Yao W, Guo Y, Xiao F, Lu Y, Peng X, Zhang B, Xiao D, Wang Z, Chen Z, Bu X, Zhang H, Zhang X, An L, Zhang S, Zhu J, Cao Z, Zhan Q, Yang Y, Liang L, Tong X, Dai H, Cao B, Wu T, Chung KF, He J, Wa PMID 31230828
• Baptist AP, Busse PJ. Asthma Over the Age of 65: All's Well That Ends Well. J Allergy Clin Immunol Pract. 2018 May-Jun;6(3):764-773. doi: 10.1016/j.jaip.2018.02.007. PMID 29747982
• Lange P, Colak Y, Ingebrigtsen TS, Vestbo J, Marott JL. Long-term prognosis of asthma, chronic obstructive pulmonary disease, and asthma-chronic obstructive pulmonary disease overlap in the Copenhagen City Heart study: a prospective population-based analysis. Lancet Respir Med. 2016 Jun;4(6):454-62. doi: 10.1016/S2213-2600(16)00098-9. Epub 2016 Apr 6. PMID 27061878
• Fingleton J, Huang K, Weatherall M, Guo Y, Ivanov S, Bruijnzeel P, Zhang H, Wang W, Beasley R, Wang C; NZ-China Study Group. Phenotypes of symptomatic airways disease in China and New Zealand. Eur Respir J. 2017 Dec 7;50(6):1700957. doi: 10.1183/13993003.00957-2017. Print 2017 Dec. PMID 29217598
• Bai TR, Vonk JM, Postma DS, Boezen HM. Severe exacerbations predict excess lung function decline in asthma. Eur Respir J. 2007 Sep;30(3):452-6. doi: 10.1183/09031936.00165106. Epub 2007 May 30. PMID 17537763
• Vale-Pereira S, Todo-Bom A, Geraldes L, Schmidt-Weber C, Akdis CA, Mota-Pinto A. FoxP3, GATA-3 and T-bet expression in elderly asthma. Clin Exp Allergy. 2011 Apr;41(4):490-6. doi: 10.1111/j.1365-2222.2010.03640.x. Epub 2010 Nov 28. PMID 21114556

Identifiers

NCT: NCT05937334 · YJXBF202201

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗