Immunogenicity and Safety of a Third Dose and Immune Persistence of BBIBP-Corv Vaccine in Elderly People With Chronic Bronchitis and COPD

NCT05104216 · clinicaltrials.gov ↗

PHASE4

Phase

UNKNOWN

Status

400

Enrollment

INDUSTRY

Sponsor class

Conditions

COVID-19
Chronic Bronchitis
COPD

Interventions

BIOLOGICAL: Inactivated COVID-19 vaccine

Sponsor

China National Biotec Group Company Limited

Collaborators

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