Immune Cell Subgroups in Covid 19 Patients

Covid19 Clinical Trial

Official title:

Evaluation of Immune Cell Subgroups in Covid 19 Patients

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04531319
• Other study ID #: Covid Cell
• Status: Completed
• Start date: August 15, 2020
• Est. completion date: October 1, 2020

Study information

• Verified date: January 2021
• Source: Istanbul Training and Research Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

COVID-19, spreading rapidly all over the world, causes serious morbidity and mortality. In severe COVID-19 infections, after pulmonary inflammation, cardiovascular organ failure, cytokine storm, hemophagocytosis, septic shock, develops due to uncontrolled hypoxia, and isolated organ failure turns into multi-organ failure. It is noteworthy that it causes lymphopenia in patients. In studies conducted, the effects of Covid-19 on the immune system were evaluated with limited parameters. In addition, no study evaluating the effect of this disease on the immune system has been published in our country.

Description:

The causative agent of coronavirus 2019 (COVID-19) disease, which started in Wuhan province of China in December 2019, was severe acute respiratory failure syndrome coronavirus 2 (SARS-CoV-2), which quickly spread all over the world and caused a pandemic. COVID-19 can cause death with symptoms such as fever, cough, muscle pain, shortness of breath, and pneumonia (1). Pulmonary pathology of COVID-19 is diffuse alveolar damage, focal reactive hyperplasia of pneumocytes with patchy inflammatory cells, intravascular thrombosis, monocyte, macrophage and lymphocyte infiltration into pulmonary spaces. Severe infiltration of pulmonary tissue affects alveolar gas exchange. In addition, cardiovascular morbidity, tachyarrhythmia and thromboembolic events are observed in 1/5 of the hospitalized patients with troponin elevation, which is closely related to mortality. In severe COVID-19 infections, after pulmonary inflammation, cardiovascular organ failure, cytokine storm, hemophagocytosis, septic shock, develops due to uncontrolled hypoxia, and isolated organ failure turns into multi-organ failure.

It is noteworthy that it causes lymphopenia in patients. In the studies conducted, the effects of Covid-19 on the immune system and the determination of cell subgroups were performed with limited parameters. No studies have been conducted on PDL-1, one of the immune control points. In addition, no study evaluating the effect of this disease on the immune system with wide parameters has been published in our country.

We aimed to study CD3 (+) lymphocytes, CD4 (+) lymphocytes, CD 8 (+) lymphocytes, CD 3(-)/CD16 (+) NK cell ratio, CD14 (+) lymphocytes, and HLA-DR positivity on CD14 (+) cells at Covid-19 and healthy volunteers.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 50
• Est. completion date: October 1, 2020
• Est. primary completion date: October 1, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 80 Years

Eligibility

Inclusion Criteria:

• Patients with Covid 19 PCR (+) results

Exclusion Criteria:

• Cancer Patients

• Patients with known immunodeficiency

• Pregnancy

Related Conditions & MeSH terms

• Covid19

Intervention

Diagnostic Test:
• Flow cytometric analysis
Flow cytometric analysis of T helper, T cytotoxic cells, NK cells and monocytes

Locations

Country	Name	City	State
Turkey	Istanbul Training and Reseach Hospital	Istanbul

Sponsors (1)

Lead Sponsor	Collaborator
Istanbul Training and Research Hospital

Country where clinical trial is conducted

Turkey, 

References & Publications (3)

Bi Q, Wu Y, Mei S, Ye C, Zou X, Zhang Z, Liu X, Wei L, Truelove SA, Zhang T, Gao W, Cheng C, Tang X, Wu X, Wu Y, Sun B, Huang S, Sun Y, Zhang J, Ma T, Lessler J, Feng T. Epidemiology and transmission of COVID-19 in 391 cases and 1286 of their close contacts in Shenzhen, China: a retrospective cohort study. Lancet Infect Dis. 2020 Aug;20(8):911-919. doi: 10.1016/S1473-3099(20)30287-5. Epub 2020 Apr 27. Erratum in: Lancet Infect Dis. 2020 Jul;20(7):e148. — View Citation

Felsenstein S, Herbert JA, McNamara PS, Hedrich CM. COVID-19: Immunology and treatment options. Clin Immunol. 2020 Jun;215:108448. doi: 10.1016/j.clim.2020.108448. Epub 2020 Apr 27. Review. — View Citation

Ganji A, Farahani I, Khansarinejad B, Ghazavi A, Mosayebi G. Increased expression of CD8 marker on T-cells in COVID-19 patients. Blood Cells Mol Dis. 2020 Jul;83:102437. doi: 10.1016/j.bcmd.2020.102437. Epub 2020 Apr 13. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	T cell subtype ratios	T helper, NK cell and T cytotoxic cell ratio	1 month
Secondary	Monocyte ratio	CD14 (+) monocyte and HLA-DR (+) cell ratio	1 month