FindTrial
Sign In

The Long-term Impact of SARS-CoV-2 Infection on Lymphocyte Subsets and Its Possible Association with Long-COVID — A Cross-Sectional Study

The Long-term Impact of SARS-CoV-2 Infection on Lymphocyte Subsets and Its Possible Association with Long-COVID — A Cross-Sectional Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500098013
Enrollment
Unknown
Registered
2025-02-28
Start date
2025-02-28
Completion date
Unknown
Last updated
2025-03-03

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

Conditions

In some patients who have recovered from COVID-19, a set of post-acute sequelae may emerge, known as long-COVID. Long-COVID is a multisystem disease characterized by persistent symptoms following infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). These symptoms include general fatigue, muscle aches, difficulty breathing, tingling in the limbs, chest pain, or a sensati

Interventions

exposure group (SARS-CoV-2):None
post-exposure group:None
Pre-exposure group:None

Sponsors

Qilu Hospital of Shandong University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Age>=18 years; 2. Patients who underwent lymphocyte subset testing at Qilu Hospital of Shandong University from January 1, 2021 to August 28, 2024;

Exclusion criteria

Exclusion criteria: 1. Patients with malignant tumors; 2. Patients with hematologic diseases; 3. Patients with a history of organ transplantation; 4. Patients with pregnancy status, adverse pregnancy or infertility; 5.ICU patients; 6. Emergency outpatients.

Design outcomes

Primary

MeasureTime frame
lymphocyte subsets;—

Countries

China

Contacts

Public ContactJun Peng

Qilu Hospital of Shandong University

junpeng88@sina.com+86 531 8216 9816

Outcome results

None listed

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