AzTrials
AzTrials

Covid19NCT04898140

The Evaluation of Cellular and Humoral Immunity to COVID-19 in Moscow Residents

An observational study of Covid19 and Respiratory Viral Infection, run by Moscow Department of Health at 1 site in Russia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Covid19, Respiratory Viral Infection
What is being tested?
SARS-CoV-2 specific IgM and IgG detection, ELISpot: detection of the T cells specific to different SARS-CoV-2 proteins and Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytes
Type of treatment
Vaccines
How many people
5,340 participants
Where
1 siteRussia
Study dates
20 Oct 2020to 31 Dec 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Residents of Moscow city over 18 years old

Who may be able to join

  • residents of the Moscow city (registered in Moscow);
  • 18 years old or above;
  • signed informed consent.

Who cannot join

  • citizenship of a foreign state;
  • refusal to sign the informed consent.

Trial locations and contacts

1 site in 1 country.

Russia1 site
  • Clinical City Hospital named after I.V. Davydovsky of Moscow Department of Healthcare

    Moscow

Other trials in Russia

About this study

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.

Being tested
SARS-CoV-2 specific IgM and IgG detection, ELISpot: detection of the T cells specific to different SARS-CoV-2 proteins, Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytes
Keywords
Covid19, T cell immunity, virus-specific antibodies, protective immunity, flow cytometry, ELISpot
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SARS-CoV-2 specific IgM and IgG detectionDiagnostic test

    Detection of IgM and IgG antibodies specific to the SARS-CoV-2 antigens in the blood serum using enzyme-linked immunosorbent assay (ELISA).

  • ELISpot: detection of the T cells specific to different SARS-CoV-2 proteinsDiagnostic test

    Detection of peripheral blood T lymphocytes which are activated and secrete interferon gamma (IFNgamma) upon stimulation with peptides, covering the immunodominant sequence domains of the nucleocapsid N, membrane M, or spike glycoprotein S proteins of SARS-CoV-2 coronavirus.

  • Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytesDiagnostic test

    Detection of peripheral blood T-helpers (CD45+CD3+CD4+)* and cytotoxic T cells (CD45+CD3+CD8+)* which are activated and secrete IFNgamma and/or interleukin-2 (IL2) upon stimulation with mixture of peptides, covering the immunodominant sequence domains of the nucleocapsid N, membrane M, and spike glycoprotein S proteins of SARS-CoV-2 coronavirus. * CD, cluster of differentiation

Study groups in NCT04898140
Study groupRoleWhat they receive
Healthy volunteersIndividuals who were not infected and not having been demonstrated COVID-19 symptoms since December 2019.
Receives: Diagnostic Test: SARS-CoV-2 specific IgM and IgG detection; Diagnostic Test: ELISpot: detection of the T cells specific to different SARS-CoV-2 proteins; Diagnostic Test: Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytes
RecoveredIndividuals who were recovered from COVID-19 with different severity.
Receives: Diagnostic Test: SARS-CoV-2 specific IgM and IgG detection; Diagnostic Test: ELISpot: detection of the T cells specific to different SARS-CoV-2 proteins; Diagnostic Test: Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytes
VaccinatedIndividuals who were vaccinated against SARS-CoV-2 with "Sputnik V" vaccine.
Receives: Diagnostic Test: SARS-CoV-2 specific IgM and IgG detection; Diagnostic Test: ELISpot: detection of the T cells specific to different SARS-CoV-2 proteins; Diagnostic Test: Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytes
Special groupIndividuals who recovered from COVID-19 concomitant with other immune-related comorbidities (tuberculosis, chronic obstructive pulmonary disease, HIV infection, hematological neoplasia).
Receives: Diagnostic Test: SARS-CoV-2 specific IgM and IgG detection; Diagnostic Test: ELISpot: detection of the T cells specific to different SARS-CoV-2 proteins; Diagnostic Test: Flow cytometry: detection of the SARS-CoV-2 specific T-helpers and cytotoxic T lymphocytes

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. IgM/IgG titer

    The level of SARS-CoV-2 specific IgM/IgG antibodies in blood serum.

    Measured: At the moment of inclusion and for 1-2 years after inclusion in the study.

  2. Peripheral blood T cells specific to different SARS-CoV-2 proteins

    The number of peripheral blood T cells specific to N, M or S protein of SARS-CoV-2.

    Measured: At the moment of inclusion and for 1-2 years after inclusion in the study.

  3. Subpopulations of SARS-CoV-2 specific peripheral blood T lymphocytes

    The number of peripheral blood T-helpers and cytotoxic T cells specific to SARS-CoV-2 coronavirus antigens.

    Measured: At the moment of inclusion and for 1-2 years after inclusion in the study.

  4. Primary or repeated COVID-19 cases

    Monitoring of the SARS-CoV-2 infection cases, severity of symptoms, outcomes and recovery period among participants included into the study.

    Measured: 1-2 years after inclusion in the study.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 May 2021
  2. Study start20 Oct 2020
  3. Primary completion31 Dec 2021
  4. Study completion31 Dec 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
5,340 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04898140
Sponsor's protocol ID
1027739482649/0908/4_9
Status last verified
Sep 2022
First submitted
21 May 2021
Last updated
14 Sep 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Molodtsov IA, Kegeles E, Mitin AN, Mityaeva O, Musatova OE, Panova AE, Pashenkov MV, Peshkova IO, Alsalloum A, Asaad W, Budikhina AS, Deryabin AS, Dolzhikova IV, Filimonova IN, Gracheva AN, Ivanova OI, Kizilova A, Komogorova VV, Komova A, Kompantseva NI, Kucheryavykh E, Lagutkin Dcapital A, Cyrillic, Lomakin YA, Maleeva AV, Maryukhnich EV, Mohammad A, Murugin VV, Murugina NE, Navoikova A, Nikonova MF, Ovchinnikova LA, Panarina Y, Pinegina NV, Potashnikova DM, Romanova EV, Saidova AA, Sakr N, Samoilova AG, Serdyuk Y, Shakirova NT, Sharova NI, Sheetikov SA, Shemetova AF, Shevkova LV, Shpektor AV, Trufanova A, Tvorogova AV, Ukrainskaya VM, Vinokurov AS, Vorobyeva DA, Zornikova KV, Efimov GA, Khaitov MR, Kofiadi IA, Komissarov AA, Logunov DY, Naigovzina NB, Rubtsov YP, Vasilyeva IA, Volchkov P, Vasilieva E. Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)-Specific T Cells and Antibodies in Coronavirus Disease 2019 (COVID-19) Protection: A Prospective Study. Clin Infect Dis. 2022 Aug 24;75(1):e1-e9. doi: 10.1093/cid/ciac278.

    PubMed 35435222
  • Komissarov AA, Dolzhikova IV, Efimov GA, Logunov DY, Mityaeva O, Molodtsov IA, Naigovzina NB, Peshkova IO, Shcheblyakov DV, Volchkov P, Gintsburg AL, Vasilieva E. Boosting of the SARS-CoV-2-Specific Immune Response after Vaccination with Single-Dose Sputnik Light Vaccine. J Immunol. 2022 Mar 1;208(5):1139-1145. doi: 10.4049/jimmunol.2101052. Epub 2022 Jan 31.

    PubMed 35101893

Questions about this trial

What is this clinical trial studying?

An observational study of Covid19 and Respiratory Viral Infection, run by Moscow Department of Health at 1 site in Russia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Russia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

IgM/IgG titer (time frame: At the moment of inclusion and for 1-2 years after inclusion in the study.). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04898140, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Sep 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in