Observational National Vaccine Study
Observational Study to Evaluate the Effectiveness, Immunogenicity and Safety of Inactivated COVID-19 Vaccine (TURKOVAC) Application
1 other identifier
observational
200
1 country
8
Brief Summary
To assess the long-term safety of TURKOVAC in individuals who have not previously received the COVID-19 vaccine or who have received their primary vaccination with inactivated or mRNA vaccine, or who have received their primary vaccination with similarly inactivated or mRNA vaccine and who subsequently received the first dose or second dose of booster vaccine, who meet the inclusion/exclusion criteria of the study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started May 2022
8 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 18, 2022
CompletedFirst Submitted
Initial submission to the registry
February 10, 2023
CompletedFirst Posted
Study publicly available on registry
May 18, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2024
CompletedMay 24, 2024
May 1, 2024
1.5 years
February 10, 2023
May 23, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Incidence of adverse reactions
Incidence of adverse reactions in all subjects within 3 - 7 days after vaccination (phone call).
3 - 7 days after vaccination
Incidence of Serious Adverse Events (SAE)
Incidence of Serious Adverse Events (SAE) up to 365 days after vaccination in all subjects
365 days after vaccination
Secondary Outcomes (1)
Neutralizing antibody (pseudo neutralization-Neutralizing Anti Spike/RBD Antibody) levels
Immediately before the first dose of TURKOVAC vaccine (day 0) and on the following days of 28 (±2 days), 48 (±5 days), 84 (±5 days), and 168 (±10 days)
Other Outcomes (3)
Microneutralization levels
Immediately before the first dose of TURKOVAC vaccine (day 0) and on the following days 28 (±2 days), 48 (±5 days), 84 (±5 days), and 168 (±10 days)
Determine the confirmed COVID-19 case rates
At least 14 days after the second dose of TURKOVAC vaccine
Neutralizing antibody (pseudo neutralization-Neutralizing Anti Spike/RBD Antibody) levels and microneutralization levels
Before the fourth dose of TURKOVAC vaccine is given and on the 28th (±2 days) day following the booster dose of vaccine
Study Arms (3)
Individuals who have never been vaccinated against COVID-19
Individuals who have never been vaccinated against COVID-19 and who have applied to the study centers to be vaccinated with TURKOVAC within the scope of the routine vaccination program.
Previously primary vaccinated individuals
1. Those who have previously received two doses of Sinovac - Coronavac vaccine, who will receive the booster vaccine for the first time as TURKOVAC; 2. Those who have previously received two doses of the BioNTech Comirnaty vaccine, who will receive the booster vaccine for the first time as TURKOVAC; 3. Those who have previously received the primary vaccination of Sinovac - Coronavac Vaccine and who have received at least one dose of the booster vaccine of TURKOVAC and have accepted the second booster dose vaccination, 4. Individuals who have previously received the primary vaccination of the BioNTech Comirnaty Vaccine and who have received at least one dose of the booster vaccine of the TURKOVAC and who have agreed to the second booster dose vaccination.
Individuals who have only received TURKOVAC vaccine before
Only individuals who have previously been vaccinated of TURKOVAC will also be invited to be included in the study retrospectively.
Interventions
Within the scope of the study, no intervention will be made to the participants. According to the vaccination program implemented in Turkey, subjects who apply to the study centers for TURKOVAC vaccine will be invited to the study.
Eligibility Criteria
Healthy adults aged 18 years and older
You may qualify if:
- Subjects who meet all of the following criteria will be included in the study:
- Individuals aged 18 and over,
- Individuals who have never had a COVID-19 vaccine before OR who have received COVID-19 mRNA or inactivated vaccines in the primary vaccination and have selected TURKOVAC as the booster dose (3rd dose and 4th dose),
- Individuals who have not had COVID-19 during the last trimester,
- Only for subjects who will receive 4th dose of vaccine: Those who have received the third dose of TURKOVAC vaccine and those who have spent at least 90 days since the third dose,
- Individuals who agree to provide blood samples and verifiable identification information (in accordance with local regulations), who may be contacted by the investigator during the study and who may come into contact with the investigator,
- Individuals who will be able to voluntarily understand and sign informed consent,
- Individuals who accept phone calls to be made to them for the purpose of collecting safety-related data.
You may not qualify if:
- Subjects who meet one of the following criteria will be excluded from the study.
- For subjects who will receive primary vaccination: Individuals who have received any vaccine and/or flu vaccine within 14 days prior to the COVID-19 vaccine.
- Individuals who have chosen a vaccine other than TURKOVAC as a booster dose.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (8)
Ankara City Hospital Internal Medicine Clinic
Ankara, 06800, Turkey (Türkiye)
T.R. Ministry of Health Abant Izzet Baysal University Training and Research Hospital
Bolu, 14280, Turkey (Türkiye)
Eskişehir City Hospital Internal Medicine
Eskişehir, 26080, Turkey (Türkiye)
T.R. Ministry of Health Kartal Dr. Lütfi Kirdar City Hospital Infectious Diseases
Istanbul, 34865, Turkey (Türkiye)
Kayseri City Training and Research Hospital, Department of Infectious Diseases and Clinical Microbiology
Kayseri, 38080, Turkey (Türkiye)
Erciyes University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology
Kayseri, 38280, Turkey (Türkiye)
Health Sciences University Derince Training and Research Hospital
Kocaeli, 41310, Turkey (Türkiye)
Health Sciences University Kanuni Training and Research Hospital Infectious Diseases and Clinical Microbiology
Trabzon, Turkey (Türkiye)
Biospecimen
Blood samples from volunteers who accepted the study will be used to evaluate the long-term safety and immunogenicity of the TURKOVAC vaccine.
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
İhsan Ateş, Assoc. Prof.
Assoc. Prof.
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- OTHER
- Target Duration
- 12 Months
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 10, 2023
First Posted
May 18, 2023
Study Start
May 18, 2022
Primary Completion
November 1, 2023
Study Completion
April 1, 2024
Last Updated
May 24, 2024
Record last verified: 2024-05