This study is a multi-centre, non-interventional, observational, ambispective registry. Planned study population consists of 9 000 adult patients with uncontrolled asthma receiving treatment according to standard of care (except biologics). Planned number of study site is 70 outpatient centers with experience of uncontrolled asthma treatment in about 50 regions of Russia (in order to describe characteristics of patients with uncontrolled asthma in different regions in the most comprehensive way).

There are limited epidemiological data of the patients with uncontrolled asthma in Russia. The systematic information about complications and comorbidities, about the treatment approaches and their effectiveness in the Russian population is also absent.

The observational registry is really important to describe the epidemiological characteristics of the disease and to analyse the clinical characteristics of the various subgroups of patients. This is an excellent starting point to be able to investigate the characteristics of the disease in detail.

The Russian Federation consists of 85 regions with a total population of more than 145 million people. The regions differ in ethnic composition, age, gender, climate, ecology, economic level, prevalence of asthma in general and uncontrolled asthma in particular.

Thus, there is a need to perform a large-scale observational registry in regions of the country with a sufficient size of population to obtain information on uncontrolled asthma epidemiology, clinical and demographic characteristics, to describe main clinical outcomes and evaluate existing associations between observed treatment patterns and clinical outcomes in real clinical practice in patients with uncontrolled asthma not receiving biologic therapy.

Trial will have ambispective design and will include 2 visits for obtaining the patient's demographic and clinical data. To allow wide data coverage the study will involve at least 50 regions of Russian Federation; in each region 200 patients will be recruited. The total size of study population will be 9 000 patients.

All data will be collected during 2-3 visits carried out according to routine clinical practice for observation and treatment of patients with uncontrolled asthma. At visit 1, baseline data of 52 weeks prior to inclusion will be collected by physician based on the patient's medical records and interview during the visit. Visit 2 (final visit) will be conducted after 12 weeks (±7 days) in order to collect follow-up data which coincides with the recommended dates. Information on changes in the treatment of uncontrolled asthma and on clinical outcomes will be collected.

For the cohort of patients receiving fixed-dose combination budesonide/salbutamol on Visit 2, an additional follow-up visit (Visit 3) will be conducted in 12 weeks (±14 days) after Visit 2, in order to collect data which coincides with the recommended dates. Information on changes in the treatment of uncontrolled asthma and on clinical outcomes will be collected. It is planned to enroll 500 patients receiving fixed-dose combination budesonide/salbutamol on Visit 2, to whom the follow-up visit (Visit 3) will be conducted.

This non-interventional study does not imply any intervention into a routine clinical practice, and does not provide for any diagnostic and therapeutic procedures other than those used in routine practice.

Inclusion Criteria:

1. Age ≥ 18 years at the time of inclusion;
2. Signed and dated written informed consent in accordance with ICH GCP and local law prior to inclusion in the study;
3. Patients with diagnosis of uncontrolled mild and moderate asthma (according to Global Initiative for Asthma (GINA) score);
4. Patients with the availability of at least 52 weeks of follow-up data (prior to inclusion) in the medical records.

Exclusion Criteria:

1. Patients with severe asthma or/and patients receiving any biological therapy currently or within 52 weeks prior to inclusion;
2. Presence of chronic obstructive pulmonary disease (COPD) or idiopathic pulmonary fibrosis (ILF) currently or in the anamnesis;
3. The participation in any clinical study currently or within 52 weeks prior to inclusion;
4. An acute or chronic disease that, as deemed by Investigator, limits the ability of patients to participate in this study or could influence the interpretation of the results.

10 000 adult patients with confirmed diagnosis of uncontrolled mild and moderate asthma who receive medical treatment (excluding biological therapy) and are monitored and treated by pulmonologists or allergologists in approximately 70 clinical centers in about 50 regions of Russia

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.