A Translational Study to Describe Asthma Patient Clinical Characteristics, Treatment Patterns, Biomarkers and to Identify Phenotypes and Endotypes associated with Differential Outcomes that may Support Future Development of Personalised Treatment Strategies in Chinese Population

Inclusion Criteria:

• Age 18 to 75 years of age
• acceptable FEV1 (according to ATS and ERS)
• compliance with study procedures All Asthma Cohorts
• physician diagnosed Asthma greater or equal to 3 months prior to screening visit

Exclusion Criteria:

• history of alcohol or drug abuse within the past year
• pregnant at time of an assessment
• has an altered mental status at the time of informed consent
• receipt marketed or investigational biologic(s) within 3 months or 5 half-lives prior to visit 1, whichever is longer
• history or current upper or lower respiratory infection or symptoms within 2 weeks of baseline assessments
• terminal diseases and/or organ failure or participants otherwise considered not appropriate for the study participation
• Receipt LTRAs or 5-lipoxygenase (5-LO) inhibitors (eg zileuton and montelukast) within 1 month or 5 half-lives prior to baseline, whichever is longer.

A total of up to 355 participants will be recruited and enrolled into Cohort A (healthy participants), Cohort B (mild asthmatics), Cohort C (moderate to severe asthmatics), and Cohort D (Exacerbation asthmatics). Enrolment will be monitored to, 1) ensure at least 20 current smoker or ex-smoker in Cohort A; 2) ensure at least 40 male participants aged 40 years old or above in Cohort A.

Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.