Effectiveness of the Adsorbed Vaccine COVID-19 (Coronavac) Among Education and Public Safety Workers With Risk Factors for Severity (COVACMANAUS)
Phase IV Study to Evaluate the Effectiveness of the Inactivated Adsorbed Vaccine Against COVID-19 CoronaVac, Among Public Safety and Education Workers With Risk Factors for Severity, in Manaus (Amazonas)
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
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-
Amazonas
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Manaus, Amazonas, Brasilien, 69050-010
- Escola Normal Superior - Universidade do Estado do Amazonas
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Age between 18 and 49 years
- Demonstrate availability to be accompanied during the follow-up time defined in the study, through visits, telephone contacts, or other means of digital communication.
Exclusion Criteria:
- Prior vaccination for COVID-19;
- Diagnosis of COVID-19 in the last 28 days (nasal and oropharyngeal swab);
- History of severe allergic reaction or anaphylaxis to study vaccine components;
- Report of fever in the 72 hours prior to vaccination (the inclusion may be postponed until the participant completes 72 hours without fever);
- Possible or confirmed of COVID-19 on the day of vaccination (in this situation, vaccination can be postponed until the participant completes 72 hours without symptoms or the diagnosis is ruled out);
- Have received live attenuated virus vaccine in the last 28 days or inactivated vaccine in the last 14 days prior to inclusion in the study, or have immunization scheduled for the first 28 days after their inclusion in the study;
- Any other condition that, in the opinion of the principal investigator or his medical representative, could endanger the safety or rights of a potential participant or that would prevent him or her from complying with this protocol;
- Pregnancy or breastfeeding.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Aktiv komparator: High-risk individuals (with comorbidities)
Public safety and security (police officers and law enforcement, fire department), and high school and college/university professionals of the state government public education network who present at least one of the comorbidities included in the National Plan for the Operationalization of Vaccination Against COVID-19 will be invited to receive the CoronaVac vaccine
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600 SU/dose; Two doses separated by 28 days (± 7 days).
Intramuscular (deltoid) administration.
Andre navne:
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Ingen indgriben: Low-risk individuals (without comorbidities)
Participants with low risk (without comorbidities as a risk factor for severe COVID-19 according to the national plan for the implementation of vaccination against COVID-19) will not receive the vaccine within the scope of the research project.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Incidence density of moderate and severe clinical cases of COVID-19
Tidsramme: 2 weeks after the second vaccine dose
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Incidence density of moderate and severe clinical cases of COVID-19 (Grade 4 or higher according to the WHO clinical progression scale), after the second week after the second dose of the vaccine.
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2 weeks after the second vaccine dose
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Incidence density of moderate and severe clinical cases of COVID-19 after first dose
Tidsramme: After first dose, up to 12 months.
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Incidence density of moderate and severe clinical cases of COVID-19 (grade 4 or higher according to the WHO clinical progression scale) from the first dose
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After first dose, up to 12 months.
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Incidence density of moderate and severe clinical cases of COVID-19 after second dose
Tidsramme: After second dose, up to 12 months.
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Incidence density of moderate and severe clinical cases of COVID-19 (grade 4 or higher according to the WHO clinical progression scale) from the second dose
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After second dose, up to 12 months.
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Incidence density of severe clinical cases of COVID-19 after second dose
Tidsramme: After second dose, up to 12 months.
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Incidence density of severe clinical cases of COVID-19 (grade 6 or higher according to the WHO clinical progression scale) from the second dose
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After second dose, up to 12 months.
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Median of clinical progression scores between moderate and severe cases
Tidsramme: After first dose, up to 12 months.
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Comparison of the median clinical progression scores according to the WHO clinical progression scale between groups
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After first dose, up to 12 months.
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Incidence density of clinical cases virologically confirmed as COVID-19
Tidsramme: After first dose, up to 12 months.
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After first dose, up to 12 months.
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Mortality confirmed as COVID-19
Tidsramme: After first dose, up to 12 months.
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Incidence density of deaths confirmed as COVID-19
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After first dose, up to 12 months.
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Incidence density of hospitalizations for any cause
Tidsramme: After first dose, up to 12 months.
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After first dose, up to 12 months.
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Mortality from any cause
Tidsramme: After first dose, up to 12 months.
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Density of mortality from any cause
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After first dose, up to 12 months.
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Adverse events
Tidsramme: Up to 7 days after each dose of the vaccine (Day 7 and Day 35)
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Frequency of adverse events associated with the need for medical care
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Up to 7 days after each dose of the vaccine (Day 7 and Day 35)
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Humoral and cell-mediated immune response
Tidsramme: Before each vaccine dose and every 3 months, up to 12 months of follow-up.
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Quantification of humoral and cell-mediated immune response to vaccination in samples of a subgroup of participants
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Before each vaccine dose and every 3 months, up to 12 months of follow-up.
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Detection of antibodies against SARS-CoV-2 in samples
Tidsramme: Before each vaccine dose and every 3 months, up to 12 months of follow-up
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Before each vaccine dose and every 3 months, up to 12 months of follow-up
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Marcus Lacerda, MD, Fundação de Medicina Tropical Heitor Vieira Dourado
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- CAAE: 44076721.5.0000.0005
Plan for individuelle deltagerdata (IPD)
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