Phase 3 Booster Vaccination Against COVID-19

Sponsor
Health Institutes of Turkey (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT05077176
Collaborator
(none)
4,340
41
2
19.9
105.9
5.3

Study Details

Study Description

Brief Summary

The inactivated Booster Phase 3 study aims to determine the efficacy, safety, and immunogenicity of inactivated COVID-19 vaccines in subjects with a minimum of 90 days and a maximum of 270 days after the second dose of CoronaVac vaccine.

Condition or Disease Intervention/Treatment Phase
  • Biological: CoronaVac
  • Biological: Turkovac
Phase 3

Detailed Description

The inactivated Booster Phase 3 study aims to determine the efficacy, safety, and immunogenicity of inactivated COVID-19 vaccines in subjects with a minimum of 90 days and a maximum of 270 days after the second dose of CoronaVac vaccine. For the booster dose, subjects will be assigned open-label according to their preference for 2 different arms.

The booster dose vaccine arms are as follows:
  • CoronaVac

  • Turkovac

Study Design

Study Type:
Interventional
Actual Enrollment :
4340 participants
Allocation:
Non-Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
Multi-Center Phase 3 Clinical Trial to Determine Safety, Efficacy, and Immunogenicity of Booster Vaccination (CoronaVac or TURKOVAC) Against SARS-CoV-2Multi-Center Phase 3 Clinical Trial to Determine Safety, Efficacy, and Immunogenicity of Booster Vaccination (CoronaVac or TURKOVAC) Against SARS-CoV-2
Masking:
None (Open Label)
Primary Purpose:
Prevention
Official Title:
Open Label, Multi-Center Phase 3 Clinical Trial to Determine Safety, Efficacy, and Immunogenicity of Booster Vaccination Against SARS-CoV-2
Actual Study Start Date :
Oct 8, 2021
Anticipated Primary Completion Date :
Apr 7, 2023
Anticipated Study Completion Date :
Jun 7, 2023

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: CoronaVac

Inactivated SARS-CoV-2 virus antigen, single intramuscular injection for boosting dose.

Biological: CoronaVac
One dose vaccine will be administered to subjects who have passed at least 90 days and at most 270 days after the second dose of the first course of CoronaVac vaccine.

Experimental: Turkovac

Inactivated SARS-CoV-2 virus antigen, single intramuscular injection for boosting dose.

Biological: Turkovac
One dose vaccine will be administered to subjects who have passed at least 90 days and at most 270 days after the second dose of the first course of CoronaVac vaccine.

Outcome Measures

Primary Outcome Measures

  1. Protection rates of Turkovac and CoronaVac vaccines against symptomatic COVID-19 [At least 14 days after booster vaccination dose]

    Protection rates of Turkovac and CoronaVac vaccines against symptomatic COVID-19 confirmed by RT-PCR at least 14 days after booster vaccination dose.

  2. To Evaluate the SARS-CoV2 anti-spike protein immunoglobulin G [28 days after booster vaccination dose]

    The change in the amount of SARS-CoV2 anti-spike protein immunoglobulin G in the 28th day compared to the baseline is 2 times or more

  3. Evaluation of SARS-CoV2 Neutralizing Antibodies [28 days after booster vaccination dose]

    The change in the amount of SARS-CoV2 neutralizing antibodies in the 28th day compared to the baseline is 2 times or more

  4. T-Cell Evaluation [28 days after booster vaccination dose]

    IL-2, TNF-alpha and IFN-gamma levels in T cells changed by 2 times or more on day 28 compared to baseline for 35 - 40 subjects

Secondary Outcome Measures

  1. Incidence of Adverse Events (AE) [On days 7 and 14 days after vaccination]

    To evaluate the safety of booster dose vaccines by determining the incidence of adverse reactions.

  2. Incidence of Serious Adverse Events (SAE) [168 days after vaccination]

    To evaluate the safety of booster dose vaccines by determining the incidence of serious adverse reactions.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 59 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes

Subjects must meet all of the following inclusion criteria to be eligible for inclusion in the study:

Inclusion Criteria:
  1. Subjects willing and able to give signed informed consent to participate in study,

  2. Healthy male or female aged 18 - 59 years (including both groups),

  3. Subjects who were vaccinated with CoronaVac for 2 doses and who had a minimum of 90 days and a maximum of 270 days after the second dose,

  4. Subjects with minimum 28 days and maximum 42 days between CoronaVac 1st and 2nd dose vaccines,

  5. Female subjects of childbearing potential should be willing to ensure that they or their partner use effective birth control methods continuously from 1 month before and up to 3 months after vaccination, Male subjects of potential to have children should be willing to ensure that they or their partner use effective birth control methods continuously from 1 month before and up to 3 months after vaccination,

  6. In the opinion of the investigator, subjects capable and willing to comply with all study requirements,

  7. Subjects are willing to agree to abstain from donating blood during the study.

Subjects meeting any of the following criteria will not be included in the study:
Exclusion Criteria:
  1. Administration of any vaccine (registered or investigational) other than study intervention within 30 days before and after each study vaccine (one week for authorized seasonal flu vaccine or pneumococcal vaccine),

  2. Pre-or planned use of another vaccine or product likely to affect the study (e.g. adenovirus vectored vaccines, any coronavirus vaccine),

  3. Known history of SARS-CoV-2 infection,

  4. Pregnant and puerperant subjects (subjects who become pregnant 2 months after vaccination will continue to study),

  5. Subjects with fever (above 37,8°C) at the time of vaccination and/or up to 72 hours before (After the acute condition has resolved, the subject can be screened again),

  6. Administration of immunoglobulins and/or any blood product within 3 months prior to vaccination,

  7. Any confirmed or suspected immunosuppressive or immunodeficiency state; asplenia; recurrent severe infections and use of immunosuppressants (less than ≤14 days) in the last 6 months, excluding topical steroids or short-term oral steroids,

  8. Possible history of allergic disease or reaction (e.g. to the active substance) by any component of the study vaccines,

  9. Any history of anaphylaxis,

  10. Current cancer diagnosis or treatment (excluding basal cell carcinoma of the skin and cervical carcinoma in situ),

  11. History of bleeding disorder (e.g. factor deficiency, coagulopathy or platelet disorder), or prior history of significant bleeding or bruising following intramuscular injections or venipuncture,

  12. Continued use of anticoagulants such as coumarins and related anticoagulants (i.e. warfarin) or new oral anticoagulants (i.e. apixaban, rivaroxaban, dabigatran and edoxaban),

  13. Cerebral venous sinus thrombosis, antiphospholipid syndrome, or a history of heparin-induced thrombocytopenia and thrombosis (HITT or HIT type 2),

  14. Suspected or known current alcohol or drug addiction,

  15. Any other significant disease, disorder or finding that could significantly increase the subject's risk for participation in the study, affect the subject's ability to participate in the study, or impair the interpretation of study data; severe and/or uncontrolled cardiovascular disease, respiratory disease, gastrointestinal disease, liver disease, kidney disease, endocrine disorder, and neurological disease (mild/moderate well-controlled comorbidities are permitted),

  16. History of active or previous autoimmune neurological disorders (e.g. multiple sclerosis, Guillain-Barre syndrome, transverse myelitis) (Bell's palsy will not be an exclusion criterion),

  17. Subjects with severe renal impairment or liver failure,

  18. Subjects who will undergo scheduled elective surgery during the study,

  19. Subjects with a life expectancy of less than 6 months,

  20. Subject who participated in another clinical trial study involving an investigational product in the past 12 weeks,

  21. In case of clinical necessity, a COVID-19 PCR (polymerase chain reaction) test will be requested from the subjects, and subjects who are positive will be excluded from the study,

  22. Acute respiratory disease (moderate or severe illness with or without fever). (Subjects may be screened again after acute condition has resolved),

  23. Insufficient level of Turkish to perform the informed consent, except where briefing by an independent witness can be provided and is available.

Contacts and Locations

Locations

Site City State Country Postal Code
1 T.R. Ministry of Health Ankara Keçiören Sanatorium Ataturk Chest Diseases and Thoracic Surgery Training and Research Hospital Ankara Turkey Region Turkey 06800
2 Çukurova University Faculty of Medicine, Department of Infectious Diseases Adana Turkey
3 T.R. Ministry of Health Ankara City Hospital, Infectious Diseases and Clinical Microbiology Clinic Ankara Turkey 06800
4 Dışkapı SUAM Infectious Diseases and Clinical Microbiology Ankara Turkey
5 T.R. Ministry of Health Antalya Training And Research Hospital Antalya Turkey
6 T.R. Ministry of Health Aydın State Hospital Aydın Turkey
7 T.R. Ministry of Health Balıkesir Atatürk City Hospital Balıkesir Turkey
8 T.R. Ministry of Health Abant Izzet Baysal University Training and Research Hospital Bolu Turkey
9 T.R. Ministry of Health Bursa City Hospital Bursa Turkey
10 Uludağ University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology Bursa Turkey
11 T.R. Ministry of Health Denizli Acıpayam State Hospital Denizli Turkey
12 T.R. Ministry of Health Elazığ Fethi Sekin City Hospital Elazığ Turkey
13 Erzincan Binali Yıldırım University Training and Research Hospital Traditional and Complementary Medicine Application Center - GETAT Erzincan Turkey
14 T.R. Ministry of Health Erzurum Regional Training and Research Hospital Erzurum Turkey
15 Eskişehir Osmangazi University Eskişehir Osmangazi University Health, Application and Research Hospital Eskişehir Turkey
16 T.R. Ministry of Health Eskişehir City Hospital Eskişehir Turkey
17 T.R. Ministry of Health Dr. Ersin Arslan Training and Research Hospital Gaziantep Turkey
18 T.R. Ministry of Health Kartal Dr. Lütfi Kirdar City Hospital Infectious Diseases Istanbul Turkey 34865
19 Cerrahpaşa Faculty of Medicine, Department of Internal Medicine - Department of Infectious Diseases and Clinical Microbiology Istanbul Turkey
20 T.R. Ministry of Health Başakşehir Çam ve Sakura City Hospital Istanbul Turkey
21 T.R. Ministry of Health Istanbul Provincial Health Directorate Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital (Prof. Dr. Feriha Öz Emergency Hospital) Istanbul Turkey
22 T.R. Ministry of Health İstanbul Şişli Hamidiye Etfal Training and Research Hospital, Clinical Microbiology Clinic Istanbul Turkey
23 University of Health Sciences İstanbul Ümraniye Training and Research Hospital Istanbul Turkey
24 T.R. Ministry of Health İzmir Katip Çelebi University Atatürk Training and Research Hospital, Infectious Diseases Clinic İzmir Turkey
25 T.R. Ministry of Health İzmir Provincial Health Directorate Health Sciences University Dr Suat Seren Chest Diseases And Chest Surgery Training And Research Hospital İzmir Turkey
26 T.R. Ministry of Health İzmir Provincial Health Directorate İzmir Health Sciences University Tepecik Training and Research Hospital, Infectious Diseases İzmir Turkey
27 Kahramanmaraş Sütçü İmam University Infections Diseases Kahramanmaraş Turkey
28 Erciyes University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology Kayseri Turkey
29 T.R. Ministry of Health Kayseri City Training and Research Hospital, Infectious Diseases and Clinical Microbiology Department Kayseri Turkey
30 Kocaeli University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology Kocaeli Turkey
31 T.R. Ministry of Health Kocaeli Health Sciences University Derince Training And Research Hospital Kocaeli Turkey
32 T.R. Ministry of Health Konya City Hospital Konya Turkey
33 Kütahya University of Health Sciences, Infectious Diseases and Clinic Kütahya Turkey
34 Kırıkkale University Faculty of Medicine, Department of Internal Medicine Kırıkkale Turkey
35 Malatya İnönü University Faculty of Medicine, Department of Infectious Diseases Malatya Turkey
36 T.R. Ministry of Health Manisa City Hospital Manisa Turkey
37 T.R. Ministry of Health Mersin City Training and Research Hospital Mersin Turkey
38 T.R. Ministry of Health Tekirdağ Çorlu District State Hospital Tekirdağ Turkey
39 Health Sciences University Kanuni Training and Research Hospital Infectious Diseases and Clinical Microbiology Trabzon Turkey
40 Van Yüzüncü Yıl University Hospital, Faculty of Medicine, Infectious Diseases and Clinical Microbiology Van Turkey
41 Şanlıurfa Harran University Hospital Şanlıurfa Turkey

Sponsors and Collaborators

  • Health Institutes of Turkey

Investigators

  • Principal Investigator: Bedia Dinç, Assoc. Prof., Faculty Member

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Health Institutes of Turkey
ClinicalTrials.gov Identifier:
NCT05077176
Other Study ID Numbers:
  • Inaktif_Rapel_Faz 3
First Posted:
Oct 14, 2021
Last Update Posted:
Apr 13, 2022
Last Verified:
Nov 1, 2021
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Health Institutes of Turkey
Additional relevant MeSH terms:

Study Results

No Results Posted as of Apr 13, 2022