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Study on the association between influenza infection and hospitalizations due to acute exacerbations of chronic obstructive pulmonary disease

Study on the association between influenza infection and hospitalizations due to acute exacerbations of chronic obstructive pulmonary disease

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600117321
Enrollment
Unknown
Registered
2026-01-22
Start date
2026-01-31
Completion date
Unknown
Last updated
2026-01-27

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

Conditions

chronic obstructive pulmonary disease, COPD

Interventions

Influenza-negative group:None
Influenza-positive group:None

Sponsors

Wuxi People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with COPD with acute exacerbations were selected based on admission diagnosis. Acute exacerbation is defined as COPD patients exhibiting two or more major symptoms (dyspnea, purulent sputum, or increased sputum volume) for >=2 consecutive days, or at least one major symptom and at least one minor symptom (runny nose/nasal congestion, wheezing, sore throat, or cough).

Exclusion criteria

Exclusion criteria: 1. Patients admitted due to shortness of breath caused by bronchial asthma or other reasons (heart failure, arrhythmia, pulmonary edema, pneumothorax, or pulmonary embolism); 2. Severe immunosuppression (manifestations of AIDS, organ transplantation, or neutropenia).

Design outcomes

Primary

MeasureTime frame
Respiratory pathogen detection;Immunological indicators;Inflammatory markers;

Secondary

MeasureTime frame
Hemagglutination inhibition test;

Countries

China

Contacts

Public ContactYu Haoda

Wuxi People's Hospital

yhd9988@sina.com+86 510 85351501

Outcome results

None listed

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