Reactogenicity, Safety and Immunogenicity of QazCovid-in® COVID-19 Vaccine
![]() |
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. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04530357 |
Recruitment Status :
Completed
First Posted : August 28, 2020
Last Update Posted : May 4, 2021
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Covid19 SARS-CoV Infection Vaccine Adverse Reaction | Biological: QazCovid-in® - COVID-19 inactivated vaccine Other: Placebo | Phase 1 Phase 2 |
Purpose of the Phase-I clinical study Evaluation of the safety,acceptability and immunogenicity of QazCovid-in®-COVID-19 inactivated vaccine when administeredtwice in healthy volunteers aged 18-50 years.
Purpose of the Phase-II clinical study Evaluation of the safety and immunogenicity of QazCovid-in® - COVID-19 inactivated vaccine with single and dual use in healthy volunteers aged 18 and above.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 244 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Single (Participant) |
Primary Purpose: | Prevention |
Official Title: | Randomized, Blind, Placebo-controlled Phase- i Study and Randomized, Open Phase Phase-ii Study of QAZCOVID-IN®- COVID-19 Inactivated Vaccine in Healthy Adult Volunteers From 18 Years Old and Elder |
Actual Study Start Date : | September 19, 2020 |
Actual Primary Completion Date : | November 25, 2020 |
Actual Study Completion Date : | April 25, 2021 |

Arm | Intervention/treatment |
---|---|
Experimental: Phase 1 Adult-vaccine (A Sample, blind study)
Group 1 (phase 1): 22 volunteers aged 18-50 years who will be the QazCovid-in® - COVID-19 twice spaced 21 days apart, intramuscularly, at a dose of 0.5 ml
|
Biological: QazCovid-in® - COVID-19 inactivated vaccine
QazCovid-in® (inactivated) Vaccine manufactured by Research Institute for Biological Safety Problems Republic of Kazakhstan |
Placebo Comparator: Phase 1 Adult-Placebo (A Sample, blind study)
Group 2 (phase 1): 22 volunteers aged 18-50 years who will be the Placebo twice spaced 21 days apart, intramuscularly, at a dose of 0.5 ml
|
Other: Placebo
Placebo (sodium chloride bufus, solvent for the preparation of dosage forms for injection 0.9%) The use of placebo: intramuscularly, twice, spaced 21 days apart, at a dose of 0.5 ml (22 volunteers) |
Experimental: Phase 2 Adult-Vaccine, twice vaccination (An Open study)
Group 3 (phase 2): 50 volunteers aged 18-50 years who will be the QazCovid-in® - COVID-19 twice spaced 21 days apart, intramuscularly, at a dose of 0.5 ml
|
Biological: QazCovid-in® - COVID-19 inactivated vaccine
QazCovid-in® (inactivated) Vaccine manufactured by Research Institute for Biological Safety Problems Republic of Kazakhstan |
Experimental: Phase 2 Elderly-Vaccine, twice vaccination (An Open study)
Group 4 (phase 2): 50 volunteers from 18 years old and elder who will be the QazCovid-in® - COVID-19 twice spaced 21 days apart, intramuscularly, at a dose of 0.5 ml
|
Biological: QazCovid-in® - COVID-19 inactivated vaccine
QazCovid-in® (inactivated) Vaccine manufactured by Research Institute for Biological Safety Problems Republic of Kazakhstan |
Experimental: Phase 2 Adult-Vaccine, single vaccination (An Open study)
Group 5 (phase 2): 50 volunteers from 18 years old and elder who will be the QazCovid-in® - COVID-19 single vaccination, intramuscularly, at a dose of 0.5 ml volunteers from 18 years old and elder
|
Biological: QazCovid-in® - COVID-19 inactivated vaccine
QazCovid-in® (inactivated) Vaccine manufactured by Research Institute for Biological Safety Problems Republic of Kazakhstan |
Experimental: Phase 2 Elderly-Vaccine, single vaccination (An Open study)
Group 6 (phase 2): 50 vvolunteers from 18 years old and elder who will be the QazCovid-in® - COVID-19 single vaccination, intramuscularly, at a dose of 0.5 ml
|
Biological: QazCovid-in® - COVID-19 inactivated vaccine
QazCovid-in® (inactivated) Vaccine manufactured by Research Institute for Biological Safety Problems Republic of Kazakhstan |
- Frequency of adverse events up to seven days after immunization [ Time Frame: Seven days after each immunization ]Frequency of adverse reaction in the seven days following each immunization per age group
- Frequency of adverse events up to 21 days after immunization [ Time Frame: 21 days after each immunization ]Frequency of adverse reaction in the 21 days following each immunization per age group
- The proportion of volunteers with increased levels of the immune response of specific neutralizing antibody titers in ELISA following the vaccination, compared with a placebo [ Time Frame: at days 0, 21, 27, 42 ]The proportion of volunteers with increased levels of the immune response of specific neutralizing antibody titers in ELISA greater than ≥ 4 times 21 days following the second vaccination compared with a placebo.
- Changing of virus-neutralizing antibodies to SARS-CoV-2 virus in blood serum samples [ Time Frame: at days 0, 21, 27, 42 ]Determination of virus neutralizing antibody titer to SARS-CoV-2 virus in blood serum samples
- Incidence of serious adverse events during the study [ Time Frame: throughout the study, an average of 42 days ]Incidence of serious adverse events during the study.
- Cell-mediated immune profile [ Time Frame: at days 0, 7, 21, 27, 42 ]Cell-mediated immune profile - Cytokine profiles in placebo and vaccine groups

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 100 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Availability of signed and dated informed consent of the volunteer to participate in the study.
- Healthy male and female volunteers aged 18-50 and 50 and above.
- Ability and voluntary desire to independently keep records in the Self-Observation Diary, as well as to carry out all the repeated visits provided for in the study for control medical observation.
- The voluntary desire of females to use methods of reliable contraception throughout the entire period of their participation in the study.
- Negative results for IgM and IgG antibodies to SARS-CoV-2.
- Absence of COVID-19 diagnosis in history.
- Absence in the last 14 days of close contact with persons suspected of being infected with SARS-CoV-2, or persons whose diagnosis of COVID-19 has been confirmed with laboratory.
- Negative test results for human immunodeficiency virus (HIV), hepatitis B and hepatitis C.
Exclusion Criteria:
- Aggravated allergic history, drug intolerance, including hypersensitivity to any of the components of the study drug, as well as a history of serious adverse events during vaccine administration (such as allergic reactions, respiratory failure, angioedema, abdominal pain).
- Acute illness with fever (body temperature ≥37.1°C) at the time of screening/randomization.
- Chronic alcohol and/or drug use in history.
- Clinically significant deviations from normal values during laboratory and/or imaging at screening.
- Women with a positive urine pregnancy test.
- Simultaneous treatment with immunosuppressive drugs, including corticosteroids (2 weeks) 4 weeks prior to study drug administration.
- Acute or chronic clinically significant lesions of the lungs, cardiovascular system, gastrointestinal tract, liver, blood system, skin, endocrine, neurological and psychiatric diseases or impaired renal function (asthma, diabetes, thyroid disease, arrhythmia, myocardial infarction, severe hypertension not controlled by drugs, etc.), identified based on medical history, physical examination or clinical laboratory tests that, according to the researcher, may affect the study result.
- Disruption of platelets or other blood clotting disorders, which may cause contraindications to intramuscular administration.
- Leukemia or neoplasm in history.
- Persons with autoimmune diseases.
- Volunteers who received antiviral drugs, immunoglobulin's or blood transfusions or any other investigational drug within 4 weeks prior to study drug administration;
- Volunteers who received anti-inflammatory drugs 2 days before study drug administration;
- Participation in any other clinical research within the last 3 months.
- Volunteers with a concern that they will not comply with the study requirements, or persons with severe physical or mental disabilities that may affect the completion of the study.
- Voluntary refusal to study.

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): NCT04530357
Kazakhstan | |
Research Institute for Biological Safety Problems Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan | |
Gvardeyskiy, Jambul, Kazakhstan, 080409 |
Study Director: | Berik Khairullin, PhD | Research Institute for Biological Safety Problems | |
Study Chair: | Kunsulu Zakarya, PhD | Research Institute for Biological Safety Problems | |
Principal Investigator: | Ilyas Kulmagambetov, PhD | Centre for Clinical Medicine and Research |
Responsible Party: | Research Institute for Biological Safety Problems |
ClinicalTrials.gov Identifier: | NCT04530357 |
Other Study ID Numbers: |
QAZCOV-I/II-01/2020 |
First Posted: | August 28, 2020 Key Record Dates |
Last Update Posted: | May 4, 2021 |
Last Verified: | February 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
vaccine, I/II phase, safety, immunogenicity, QazCovid-in® |
COVID-19 Severe Acute Respiratory Syndrome Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |