Covid19 Clinical Trial
Official title:
The Evaluation of the Intensity of Cellular and Humoral Immunity to COVID-19 Causative Agent in Moscow Residents
The aim of the research is to estimate the levels of cellular and humoral immunity to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among Moscow residents over 18 years old. During the study, participants will be divided into four groups: healthy volunteers; individuals recovered from coronavirus disease 2019 (COVID-19) with different severity; individuals vaccinated against SARS-CoV-2; individuals who have had COVID-19 concomitantly with comorbidities that characterized by the impact on the immune system (tuberculosis, chronic obstructive pulmonary disease, HIV infection, hematological neoplasia). For all participants included into the study peripheral blood will be collected and the titers of SARS-CoV-2 specific immunoglobulins M (IgM) and immunoglobulins G (IgG), frequencies of the T cells specific to nucleocapsid (N), membrane (M), and spike (S) proteins of SARS-CoV-2 in peripheral blood, as well as the fractions of virus specific T helpers and cytotoxic T cells will be estimated. For smaller cohorts of the participants in all groups the antibody titers and T cell response levels will be examined in dynamics. All participants will be monitored for the incidence of primary or repeated COVID-19 for 1-2 years after inclusion in the study. Based on the results of the study, the relationship between the formation of humoral and cellular immunity against COVID-19, the duration of these types of immunity, as well as their individual contribution to protection against primary or secondary SARS-CoV-2 infection will be analyzed. Additionally, data concerning patients recovered from COVID-19 and having concomitant diseases will provide a valuable information that may help to understand in more details the mechanisms of the development of the SARS-CoV-2 specific immune response.
n/a
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT05047692 -
Safety and Immunogenicity Study of AdCLD-CoV19-1: A COVID-19 Preventive Vaccine in Healthy Volunteers
|
Phase 1 | |
| Recruiting |
NCT04395768 -
International ALLIANCE Study of Therapies to Prevent Progression of COVID-19
|
Phase 2 | |
| Completed |
NCT04506268 -
COVID-19 SAFE Enrollment
|
N/A | |
| Completed |
NCT04508777 -
COVID SAFE: COVID-19 Screening Assessment for Exposure
|
||
| Terminated |
NCT04555096 -
A Trial of GC4419 in Patients With Critical Illness Due to COVID-19
|
Phase 2 | |
| Completed |
NCT04961541 -
Evaluation of the Safety and Immunogenicity of Influenza and COVID-19 Combination Vaccine
|
Phase 1/Phase 2 | |
| Active, not recruiting |
NCT04546737 -
Study of Morphological, Spectral and Metabolic Manifestations of Neurological Complications in Covid-19 Patients
|
N/A | |
| Terminated |
NCT04581915 -
PHRU CoV01 A Trial of Triazavirin (TZV) for the Treatment of Mild-moderate COVID-19
|
Phase 2/Phase 3 | |
| Completed |
NCT04494646 -
BARCONA: A Study of Effects of Bardoxolone Methyl in Participants With SARS-Corona Virus-2 (COVID-19)
|
Phase 2 | |
| Terminated |
NCT04542993 -
Can SARS-CoV-2 Viral Load and COVID-19 Disease Severity be Reduced by Resveratrol-assisted Zinc Therapy
|
Phase 2 | |
| Not yet recruiting |
NCT04543006 -
Persistence of Neutralizing Antibodies 6 and 12 Months After a Covid-19
|
N/A | |
| Completed |
NCT04532294 -
Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2/COVID-19) Neutralizing Antibody in Healthy Participants
|
Phase 1 | |
| Not yet recruiting |
NCT04527211 -
Effectiveness and Safety of Ivermectin for the Prevention of Covid-19 Infection in Colombian Health Personnel
|
Phase 3 | |
| Completed |
NCT04507867 -
Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III
|
N/A | |
| Completed |
NCT04387292 -
Ocular Sequelae of Patients Hospitalized for Respiratory Failure During the COVID-19 Epidemic
|
N/A | |
| Completed |
NCT04537663 -
Prevention Of Respiratory Tract Infection And Covid-19 Through BCG Vaccination In Vulnerable Older Adults
|
Phase 4 | |
| Not yet recruiting |
NCT05038449 -
Study to Evaluate the Efficacy and Safety of Colchicine Tablets in Patients With COVID-19
|
N/A | |
| Completed |
NCT04979858 -
Reducing Spread of COVID-19 in a University Community Setting: Role of a Low-Cost Reusable Form-Fitting Fabric Mask
|
N/A | |
| Completed |
NCT04610502 -
Efficacy and Safety of Two Hyperimmune Equine Anti Sars-CoV-2 Serum in COVID-19 Patients
|
Phase 2 | |
| Active, not recruiting |
NCT06042855 -
ACTIV-6: COVID-19 Study of Repurposed Medications - Arm G (Metformin)
|
Phase 3 |