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Study of Gam-COVID-Vac in Adolescents (OLSTAD)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04954092
Recruitment Status : Recruiting
First Posted : July 8, 2021
Last Update Posted : September 16, 2021
Sponsor:
Collaborator:
Moscow Healthcare Department
Information provided by (Responsible Party):
Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation

Brief Summary:
Double-blind, placebo-controlled study with open dose selection period for safety assessment, tolerance and immunogenicity of the drug "GamKOVID-Vac M, a combined vector vaccine for prevention of coronavirus infection caused by the virus SARS-CoV-2" in adolescents

Condition or disease Intervention/treatment Phase
Covid19 Vaccine Preventable Disease Biological: Gam-COVID-vac M Biological: Placebo Phase 2 Phase 3

Detailed Description:

The study will include healthy volunteers aged 12-17 years inclusive. Volunteers will be recruited in at least two clinical centers. Teams will be divided into subgroups to ensure the safety of volunteers during hospitalization amid the ongoing pandemic.

Stage 1 (Phase I-II) - 100 volunteers will be included in two dosing groups (50 in each group), a sufficient number of volunteers should be screened (no more than 7 days before inclusion in the study). To ensure the required number of volunteers who have completed screening procedures (pre-screening procedures can be organized).

The conditions of the study were the selection of doses (administration of the drug and observation for 48 hours) in a hospital setting, the rest of the visits were outpatient.

It is planned to start the study with a dose of 1/10 of the full adult dose. Volunteers will be hospitalized the day before vaccination. It is allowed to carry out screening procedures the day before vaccination in a hospital setting, subject to the prior approval of the volunteer based on the results of pre-screening. The first dose will be administered on day 1. After that, the volunteer will be monitored in the hospital for 48 hours. on days 3 and 7, a telephone consultation will be held. With a favorable safety profile after 7 days after the 1/10 dose, the Principal Investigators present a consolidated decision to escalate the dose to 1/5 of the adult dose on ICMD.

The transition to the next stage is planned on the basis of the report on the safety and tolerability of ILS on the 28th day after the introduction of the first component. The selected dose will be determined based on the immunogenicity scores at day 28, which should be consistent with the immunogenicity in adults after receiving the full dose of ILP.

Stage 2 (Phase III) - 3000 volunteers to be randomized to two groups - active drug and placebo in a ratio of 4: 1. Volunteers will receive the drug at the dose selected in the first phase. Research is carried out on an outpatient basis.

The randomization of research subjects will be carried out in two age strata: 12-14 years old and 15-17 years old.

The intramuscular vaccine will be administered at vaccination visits # 2 and # 3 (Day 1 and Day 21 ± 2) on an outpatient basis. After vaccination, TMK will be carried out for 2 days.

Follow-up visits # 4 (28 ± 2), 5 (42 ± 4), 6 (90 ± 7) and 7 (180 ± 14); TMK for 270 ± 14 and 365 ± 14 days.

Additionally historical control data will be used (data from phase III clinical trials of efficacy, safety and immunogenicity obtained during their evaluation in a sample of adult volunteers aged 18-21 years);

The duration of study participation for one subject will be 365 ± 14 days after the first dose of vaccine, during which each subject will undergo a screening visit, two hospitalizations for drug administration, five face-to-face visits to the investigator, and telephone contacts with the investigator.

The data of research subjects will be collected using electronic forms of individual registration cards, as well as using electronic questionnaires (diaries) filled in by research subjects.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 3000 participants
Allocation: Randomized
Intervention Model: Sequential Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: An Open Label Study With an Open Dose Selection Period to Assess the Safety, Tolerability and Immunogenicity of the Drug "Gam-COVID-Vac, a Combined Vector Vaccine for the Prevention of Coronavirus Infection Caused by the SARS-CoV-2 Virus", With the Participation of Adolescent Volunteers
Actual Study Start Date : July 5, 2021
Estimated Primary Completion Date : November 6, 2022
Estimated Study Completion Date : December 31, 2023

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: 1/10 of full adult dose Biological: Gam-COVID-vac M
The vaccine consists of two components: component I and component II. Component I includes a recombinant adenoviral vector based on human adenovirus serotype 26 carrying the gene for the S-protein of the SARS-CoV-2 virus, component II includes a vector based on human adenovirus serotype 5 carrying the protein S gene of the SARS-CoV-2 virus

Experimental: 1/5 of full adult dose Biological: Gam-COVID-vac M
The vaccine consists of two components: component I and component II. Component I includes a recombinant adenoviral vector based on human adenovirus serotype 26 carrying the gene for the S-protein of the SARS-CoV-2 virus, component II includes a vector based on human adenovirus serotype 5 carrying the protein S gene of the SARS-CoV-2 virus

Experimental: Selected dose for second stage of the trial Biological: Gam-COVID-vac M
The vaccine consists of two components: component I and component II. Component I includes a recombinant adenoviral vector based on human adenovirus serotype 26 carrying the gene for the S-protein of the SARS-CoV-2 virus, component II includes a vector based on human adenovirus serotype 5 carrying the protein S gene of the SARS-CoV-2 virus

Placebo Comparator: Placebo for second stage of the trial Biological: Placebo
Composition without active ingredients




Primary Outcome Measures :
  1. Geometric mean titer of antigen-specific IgGs [ Time Frame: 21, 28, 42, 90, 180 days ]
    To define geometric mean titer of antigen-specific IgGs after vaccination

  2. Geometric mean titer of neutralizing antibodies [ Time Frame: 21, 28, 42, 90, 180 days ]
    To define geometric mean titer of neutralizing antibodies against SARS-Cov-2 virus after vaccination

  3. IFN-gamma secretion by T lymphocytes [ Time Frame: 21, 28, 42, 90, 180 days ]
    To define changes in level of IFN-gamma secretion by T lymphocytes under antigen stimulation

  4. Frequency of adverse reactions [ Time Frame: 365+/-14 days ]
    Frequency of vaccine-related adverse reactions

  5. Severity of adverse reactions [ Time Frame: 365+/-14 days ]
    Severity of vaccine-related adverse reactions


Secondary Outcome Measures :
  1. Incidence of COVID-19 cases [ Time Frame: within 28 to 365 days ]
    Incidence of mild, moderate, severe, extremely severe cases and deaths due to COVID-19


Other Outcome Measures:
  1. Presence of anti-vector antibodies [ Time Frame: before intervention and on 42, 180 days ]
    Presence of anti-rAd26 and anti-rAd5 antibodies before and after intervention



Information from the National Library of Medicine

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Ages Eligible for Study:   12 Years to 17 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  1. Availability of written informed consent of the research subject and parents / adoptive parents of the subject to participate in the research;
  2. Boys and girls aged 12-17 inclusive;
  3. Negative test result for HIV, hepatitis, syphilis;
  4. A negative test result for the presence of IgM and IgG antibodies to SARS CoV2 by enzyme immunoassay, as well as, if available, the result of an examination performed in medical institutions of the Moscow City Health Department 7 days prior to inclusion in the study can be taken into account;
  5. A negative test result for COVID-2019, determined by the PCR method at the screening visit, and, if available, can be taken into account the result of the examination performed in the medical organizations of the Moscow City Health Department 7 days before being included in the study;
  6. No history of COVID-2019;
  7. Absence of contact of the research subject with COVID-2019 patients for at least 14 days prior to inclusion in the research (according to the research participant, parents / adoptive parents of the subject);
  8. Consent to the use of effective contraceptive methods during the entire period of participation in the study;
  9. Negative pregnancy test based on urine test results at the screening visit (for all girls - study participants);
  10. Negative test for the presence of drugs and psychostimulants in the urine at the screening visit;
  11. Negative alcohol test at screening visit;
  12. No history of pronounced post-vaccination reactions or post-vaccination complications after the use of immunobiological drugs;
  13. Absence of acute infectious and / or respiratory diseases for at least 14 days prior to enrollment in the study

Exclusion Criteria:

  1. Any vaccination / immunization carried out within 30 days prior to enrollment in the study.
  2. Therapy with steroids (with the exception of hormonal contraceptive drugs) and / or immunoglobulins or other blood products, not completed 30 days before enrollment in the study;
  3. Immunosuppressive therapy and systemic therapy with corticosteroid drugs, completed in less than 3 months. prior to inclusion in the study.
  4. Postponed acute coronary syndrome or stroke less than one year before inclusion in the study
  5. Any immunodeficiency (for example, hereditary immunodeficiency, acquired immunodeficiency syndrome [AIDS], etc.).
  6. Infectious diseases:

    • history of HIV (antibodies to HIV type 1 or 2), positive test for HBsAg or HCV RNA [qualitative]), active form of syphilis;
    • Tuberculosis;
    • Active infection (with the exception of onychomycosis), or any significant episode of infection requiring intravenous antibiotic treatment for 4 weeks before screening or by mouth for 2 weeks before screening;
    • A history of a serious recurrent or chronic infection not listed above.
  7. Major surgery within 4 weeks prior to screening.
  8. Chronic autoimmune diseases or systemic collagenoses in history, requiring the appointment of immunosuppressive therapy.
  9. Volunteers who have undergone organ transplants, including bone marrow or peripheral blood stem cell (PBC) transplants, and are receiving immunosuppressive therapy.
  10. History of splenectomy.
  11. Volunteers with a previous or concomitant history of neoplasms (ICD codes C00-D09).
  12. A burdened allergic history (history of anaphylactic shock, Quincke's edema and other life-threatening conditions), hypersensitivity or allergic reactions to the administration of immunobiological preparations, known allergic reactions to any component of a vaccine or vaccine containing similar components, exacerbation of allergic diseases on the day of inclusion in the study.
  13. Neutropenia (decrease in the absolute number of neutrophils less than 1000 cells / mm3), agranulocytosis, significant blood loss, severe anemia (hemoglobin concentration less than 80 g / l), thrombocytopenia (decrease in the absolute number of platelets less than 50,000 cells / mm3).
  14. Anorexia, protein deficiency of any origin.
  15. Volunteers with a BMI <18 (low body weight) or a BMI ≥ 35 kg / m2.
  16. Extensive tattoos at the injection sites (deltoid muscle area), which do not allow assessing the local response to the injection of ILP.
  17. Chronic diseases of the cardiovascular, bronchopulmonary, neuroendocrine systems, as well as diseases of the gastrointestinal tract, liver, kidneys, muscle and connective tissue in the stage of exacerbation or decompensation.
  18. Presence or suspicion of drug, alcohol or drug addiction and other mental disorders.
  19. Diseases, the presence of which, from the point of view of the medical researcher, puts the health of the participant at risk if participating in the study or potentially complicates the interpretation of the results of the examination.
  20. Family members of staff of research centers directly involved in the conduct of research, etc.
  21. Participation in other clinical trials and use of other investigational drugs within 28 days of screening.
  22. Planned vaccination against COVID-19 with any vaccine, both in the framework of other studies and in the framework of civil appeal.
  23. Female subjects during pregnancy or lactation
  24. Inability to read in Russian; inability or unwillingness to understand the essence of the research. Any other conditions that limit the eligibility of obtaining informed consent or that may affect the volunteer's ability to participate in the study affect the volunteer's ability to take part in the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04954092


Contacts
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Contact: Nadezhda Lubenec 8 (499) 193-30-01 info@gamaleya.org

Locations
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Russian Federation
Children's City Clinical Hospital named after Z.A. Bashlyaeva of the Moscow Department of Health Recruiting
Moscow, Russian Federation
Contact: Svetlana Borzakova         
Morozovskaya Children's City Clinical Hospital of the Moscow Department of Health Recruiting
Moscow, Russian Federation
Contact: Anna Vlasova         
Sponsors and Collaborators
Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation
Moscow Healthcare Department
Investigators
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Principal Investigator: Anna Vlasova Morozovskaya Children's City Clinical Hospital of the Moscow Department of Health
Principal Investigator: Svetlana Borzakova Children's City Clinical Hospital named after Z.A. Bashlyaeva of the Moscow Department of Health
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Responsible Party: Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation
ClinicalTrials.gov Identifier: NCT04954092    
Other Study ID Numbers: OLSTAD
First Posted: July 8, 2021    Key Record Dates
Last Update Posted: September 16, 2021
Last Verified: September 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation:
rAd vector based vaccine
Sputnik
rAd26
rAd5
adolescent
Additional relevant MeSH terms:
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Vaccine-Preventable Diseases
Infections