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Investigation and analysis of influencing factors of COVID-19 infection and prognosis based on patients vaccination status, and clinical outcomes and safety evaluation of patients treated with Paxlovid—a prospective nested case-control study in the real world setting

Investigation and analysis of influencing factors of COVID-19 infection and prognosis based on patients vaccination status, and clinical outcomes and safety evaluation of patients treated with Paxlovid—a prospective nested case-control study in the real world setting

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2200065948
Enrollment
Unknown
Registered
2022-11-18
Start date
2022-04-08
Completion date
Unknown
Last updated
2023-05-15

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

Conditions

respiratory virus infectious disease

Interventions

vaccinated group:Nil
unvaccinated group:Nil

Sponsors

Zhongshan Hospital, Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Incoming patients (symptomatic inpatients/ICU patients, asymptomatic patients, isolated medical observers) and Chinese community populations from April 2022-April 2023.

Exclusion criteria

Exclusion criteria: 1. Subjects without baseline information of age and gender; 2. Patients with severe autoimmune diseases; 3. Patients with severe mental illness; 4. Pregnant women.

Design outcomes

Primary

MeasureTime frame
RR, relative ris;OR, Odds ratio;—

Countries

China

Contacts

Public ContactChunxue Bai

Zhongshan Hospital, Fudan University

yang.dawei@zs-hospital.sh.cn+86 13564703813

Outcome results

None listed

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