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Study on the mechanism of ozone exposure promoting hormone-resistant asthma through degradation of GRa by macrophages KDM5C/METTL14/NLRP3

Study on the mechanism of ozone exposure promoting hormone-resistant asthma through degradation of GRa by macrophages KDM5C/METTL14/NLRP3

Status
Recruiting
Phases
Early Phase 1
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2300079157
Enrollment
Unknown
Registered
2023-12-26
Start date
2024-01-01
Completion date
Unknown
Last updated
2024-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

hormone-resistant asthma

Interventions

steroid resistant asthma group:None
Non-steroid resistant asthma group:None
normal control group:None

Sponsors

The First Hospital of Shanxi Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Inclusion criteria

Inclusion criteria: 1. Inclusion criteria for SRA patients and non-SRA patients: (1) Lived in Yingze District, Xinghualing District or Xiaodian District, Taiyuan City for more than 5 years; (2) Based on past outpatient, emergency and hospitalization records of the Department of Respiratory Medicine, the First Affiliated Hospital of Shanxi Medical University; (3) Asthma patients who are diagnosed with asthma strictly according to the asthma diagnostic criteria and have no other respiratory diseases or allergic diseases; (4) Asthma patients whose forced expiratory volume in 1 second improves by <15% (insensitive to hormones) after 2 weeks of treatment with appropriate doses of glucocorticoids (5) Aged between 18-64 years old; (6) Not smoking or quitting smoking for more than 1 year; (7) Exclude other major diseases; (8) Voluntarily sign the informed consent form. 2. Inclusion criteria for normal control population: (1) Choose to live in a community in Yingze District for more than 5 years; (2)Age 18-64 years old; (3) Not smoking or quitting smoking for more than 1 year; (4) Those who do not have respiratory diseases or other serious diseases and voluntarily sign an informed consent form can be included in the research team;

Exclusion criteria

Exclusion criteria: (1) Those who do not meet any of the inclusion criteria; (2) Patients with concurrent infections or high fever within 4 weeks before screening, including but not limited to acute bronchitis, pneumonia, sinusitis, urinary tract infection or cellulitis; (3) Combined with tuberculosis or lung cancer; (4) Those with significant pulmonary hypertension or severe right heart failure who are judged by the researcher to be unfit to participate in the trial; (5) People with severe cardiovascular disease who have one of the following conditions: a. Severe hypertension occurs within 6 weeks and is not controlled after treatment (=160/100 mmHg); b. Myocardial infarction occurs within 6 months; c. Unstable angina pectoris within 6 months; (6) Coagulation parameters: international normalized ratio (INR) > 2, prothrombin time (PT) prolonged > 1.5 times ULN; (7) Other diseases or comorbidities that may interfere with the testing procedure (such as being unable to tolerate interruption of auxiliary oxygen supply during pulmonary function tests) or, based on the researcher's judgment, may affect trial participation or may put patients at risk ; (8) History of thrombotic events (including stroke and transient ischemic attack) within 12 months; (9) The researcher determines that the life expectancy is <4 years due to other diseases; (10) Major surgery is planned during treatment; (11) Women who are pregnant, breastfeeding or planning to become pregnant during the trial; patients with mental illness; (12) Those who are judged by the researcher to be unfit to participate in the trial;

Design outcomes

Primary

MeasureTime frame
Pulmonary fuction test;

Secondary

MeasureTime frame
Questionaire survey data;

Countries

China

Contacts

Public ContactKong Xiaomei

The First Hospital of Shanxi Medical University

syyykxm8@163.com+86 188 3515 7355

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026