Status:
COMPLETED
Clinical Trial of Efficacy and Safety of Sinovac's Adsorbed COVID-19 (Inactivated) Vaccine in Healthcare Professionals
Lead Sponsor:
Butantan Institute
Collaborating Sponsors:
Sinovac Life Sciences Co., Ltd.
Conditions:
COVID-19
Eligibility:
All Genders
18+ years
Phase:
PHASE3
Brief Summary
This is a phase III clinical trial to assess efficacy and safety of the Adsorbed COVID-19 (inactivated) vaccine manufactured by Sinovac in health care professionals
Detailed Description
This is a phase III clinical trial to assess efficacy and safety of the Adsorbed COVID-19 (inactivated) vaccine manufactured by Sinovac in health care professionals. The study will be double-blind pl...
Eligibility Criteria
Inclusion
- Adults 18 years of age or older;
- Healthcare professionals who work in direct contact care of people with possible or confirmed COVID-19 cases;
- Agree with periodic contacts by phone or electronic means, and home visits;
- Show voluntary intention to participate in the study, documented by the informed consent form signed by participant.
Exclusion
- For females: Pregnancy (confirmed by positive beta-hCG test), breastfeeding or intent to engage in sexual relations with reproductive intent without use of birth control methods in the three months following vaccination;
- Evidence of uncontrolled neurological, cardiac, pulmonary, hepatic or renal disease, according to anamnesis or physical examination. Significant changes in treatment or hospitalizations due to worsening of the condition in the last three months are indicators of uncontrolled disease;
- Diseases with impaired immune system including: neoplasms (except basal cell carcinoma), congenital or acquired immunodeficiencies and autoimmune diseases not controlled according to anamnesis or physical examination. Significant changes in treatment or hospitalizations due to worsening of the condition in the last three months are indicators of uncontrolled disease;
- Behavioral, cognitive or psychiatric disease that, in the opinion of the principal investigator or his or her representative physician, affects the participant's ability to understand and cooperate with all study protocol requirements;
- Any alcohol or drug abuse over the 12 months prior to enrollment in the study that has caused medical, professional or family problems, indicated by clinical history;
- History of severe allergic reactions or anaphylaxis to the study vaccine or to components thereof;
- History of asplenia;
- Participation in another clinical trial with an investigational product in the six months prior to enrollment in the study or planned participation in another clinical trial within the two years following enrollment;
- Previous participation in a study to evaluate a COVID-19 vaccine or prior exposure to a COVID-19 vaccine;
- Use of immunosuppressant therapy regimens within the six months prior to enrollment in the study for planned use within the two years following enrollment. Immunosuppressant therapy regimens include: antineoplastic chemotherapy, radiation therapy and immunosuppressants to induce transplant tolerance, among others.
- Use of immunosuppressive doses of corticosteroids within the three months prior to the enrollment in the study and planned use of immunosuppressive doses of corticoids within the three months following enrollment in the study. Immunosuppressive doses of corticosteroids will be considered the equivalent prednisone 20 mg/day for adults, for longer than one week. Continued use of topical or nasal corticosteroids is not considered an immunosuppressant;
- Received blood products (transfusions or immunoglobulins) within the three months prior to enrollment in the study, or planned administration of blood products or immunoglobulins within the two years following enrollment in the study;
- Suspected or confirmed fever within the 72 hours prior to vaccination or axillary temperature greater than 37.8 °C\* on the day of vaccination (enrollment may be postponed until participant has gone 72 hours without fever);
- Possible or confirmed case of COVID-19 on the day of vaccination (vaccination can be postponed until the participant completes 72 hours without symptoms or the diagnosis is ruled out);
- Received live attenuated virus vaccine or inactivated vaccine within the 28 days or 14 days, respectively, prior to enrollment in the study, or immunization planned within the 28 days after enrollment in the study;
- History of bleeding disorder (e.g. factor deficiency, coagulopathy or platelet disorder), or prior history of significant bleeding or bruising following IM injections or venipuncture
- Any other condition that, in the opinion of the principal investigator or his/her representative physician, could put the safety/rights of potential participants at risk or prevent them from complying with this protocol.
Key Trial Info
Start Date :
July 21 2020
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
February 17 2022
Estimated Enrollment :
12688 Patients enrolled
Trial Details
Trial ID
NCT04456595
Start Date
July 21 2020
End Date
February 17 2022
Last Update
February 15 2024
Active Locations (16)
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1
Universidade de Brasília
Brasília, Federal District, Brazil, 71691-082
2
Hospital Universitário Maria Aparecida Pedrossian
Campo Grande, Mato Grosso do Sul, Brazil, 79080-190
3
Universidade Federal de Minas Gerais
Belo Horizonte, Minas Gerais, Brazil, 30750-140
4
Hospital Universitário Júlio Müller
Cuiabá, Mount, Brazil, 78048-902