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)
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Studietype
Studietype
Registrering (Faktiske)
Registrering
Fase
Fase
- Fase 4
Kontakter og plasseringer
Studiesteder
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Amazonas
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Manaus, Amazonas, Brasil, 69050-010
- Escola Normal Superior - Universidade do Estado do Amazonas
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-
Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
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 studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Ikke-randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / 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 navn:
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Ingen inngripen: 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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Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
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 |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
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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Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Samarbeidspartnere
Samarbeidspartnere
Etterforskere
Etterforskere
- Hovedetterforsker: Marcus Lacerda, MD, Fundação de Medicina Tropical Heitor Vieira Dourado
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Studiestart
Primær fullføring (Faktiske)
Primær fullføring
Studiet fullført (Forventet)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
Andre studie-ID-numre
- CAAE: 44076721.5.0000.0005
Plan for individuelle deltakerdata (IPD)
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