Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

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)

This is a quasi-experimental study with risk-based allocation. Public security and education professionals from the state government will be included. In the initial evaluation, the presence of comorbidities associated with an increased risk of serious disease due to COVID-19 will be evaluated, according to the national plan for the implementation of vaccination against COVID-19. Those with at least one of these comorbidities will be invited to receive the study vaccine in two doses, with an interval of 28 days (±7 days). 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. If, after 12 months, the participant in the low-risk group (no vaccine) has not received CoronaVac, or any other vaccine available, he/she will receive the vaccine, exactly as offered in the other group (two doses of CoronaVac with an interval of 28 days - with a tolerance of 7 days before or after). All participants will be followed up for 12 months from inclusion in the study. Immunization is expected to reduce the risk of moderate to severe disease of those with comorbidities to the level of those of the same age group who do not have these comorbidities but face similar occupational risks.

Studienübersicht

Status

Aktiv, nicht rekrutierend

Bedingungen

Studientyp

Interventionell

Einschreibung (Tatsächlich)

6233

Phase

  • Phase 4

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • Amazonas
      • Manaus, Amazonas, Brasilien, 69050-010
        • Escola Normal Superior - Universidade do Estado do Amazonas

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 49 Jahre (Erwachsene)

Akzeptiert gesunde Freiwillige

Ja

Studienberechtigte Geschlechter

Alle

Beschreibung

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.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Nicht randomisiert
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver 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
600 SU/dose; Two doses separated by 28 days (± 7 days). Intramuscular (deltoid) administration.
Andere Namen:
  • CoronaVac
Kein Eingriff: 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.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Incidence density of moderate and severe clinical cases of COVID-19
Zeitfenster: 2 weeks after the second vaccine dose
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.
2 weeks after the second vaccine dose

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Incidence density of moderate and severe clinical cases of COVID-19 after first dose
Zeitfenster: After first dose, up to 12 months.
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
After first dose, up to 12 months.
Incidence density of moderate and severe clinical cases of COVID-19 after second dose
Zeitfenster: After second dose, up to 12 months.
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
After second dose, up to 12 months.
Incidence density of severe clinical cases of COVID-19 after second dose
Zeitfenster: After second dose, up to 12 months.
Incidence density of severe clinical cases of COVID-19 (grade 6 or higher according to the WHO clinical progression scale) from the second dose
After second dose, up to 12 months.
Median of clinical progression scores between moderate and severe cases
Zeitfenster: After first dose, up to 12 months.
Comparison of the median clinical progression scores according to the WHO clinical progression scale between groups
After first dose, up to 12 months.
Incidence density of clinical cases virologically confirmed as COVID-19
Zeitfenster: After first dose, up to 12 months.
After first dose, up to 12 months.
Mortality confirmed as COVID-19
Zeitfenster: After first dose, up to 12 months.
Incidence density of deaths confirmed as COVID-19
After first dose, up to 12 months.
Incidence density of hospitalizations for any cause
Zeitfenster: After first dose, up to 12 months.
After first dose, up to 12 months.
Mortality from any cause
Zeitfenster: After first dose, up to 12 months.
Density of mortality from any cause
After first dose, up to 12 months.
Adverse events
Zeitfenster: Up to 7 days after each dose of the vaccine (Day 7 and Day 35)
Frequency of adverse events associated with the need for medical care
Up to 7 days after each dose of the vaccine (Day 7 and Day 35)
Humoral and cell-mediated immune response
Zeitfenster: Before each vaccine dose and every 3 months, up to 12 months of follow-up.
Quantification of humoral and cell-mediated immune response to vaccination in samples of a subgroup of participants
Before each vaccine dose and every 3 months, up to 12 months of follow-up.
Detection of antibodies against SARS-CoV-2 in samples
Zeitfenster: Before each vaccine dose and every 3 months, up to 12 months of follow-up
Before each vaccine dose and every 3 months, up to 12 months of follow-up

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Mitarbeiter

Ermittler

  • Hauptermittler: Marcus Lacerda, MD, Fundação de Medicina Tropical Heitor Vieira Dourado

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

18. März 2021

Primärer Abschluss (Tatsächlich)

5. Juli 2021

Studienabschluss (Voraussichtlich)

1. März 2022

Studienanmeldedaten

Zuerst eingereicht

5. März 2021

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

8. März 2021

Zuerst gepostet (Tatsächlich)

9. März 2021

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

26. Juli 2021

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

22. Juli 2021

Zuletzt verifiziert

1. Juli 2021

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

UNENTSCHIEDEN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Produkt, das in den USA hergestellt und aus den USA exportiert wird

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

Klinische Studien zur Covid19

Klinische Studien zur Adsorbed SARS-CoV-2 (inactivated) vaccine

Abonnieren