Covid-19 Infection in After Vaccination
Covid-19 Infection in Partially and Fully Vaccinated Cases: Cohort Study
1 other identifier
observational
100
1 country
3
Brief Summary
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first identified in Wuhan, China. It rapidly spread, resulting a global pandemic in March 2020. Globally, till 27 August 2021, there have been 214,468,601 confirmed cases of COVID-19, including 4,470,969 deaths, reported to WHO. With the absence of curative treatment for COVID-19 infection the development of safe and effective vaccines is critical to ending the COVID-19 pandemic. The Pfizer/BioNtech Comirnaty vaccine was listed for WHO Emergency Use Listing (EUL) on 31 December 2020. The SII/Covishield and AstraZeneca/AZD1222 vaccines (developed by AstraZeneca/Oxford and manufactured by the State Institute of India and SK Bio respectively) were given EUL on 16 February. The Janssen/Ad26.COV 2.S developed by Johnson \& Johnson, was listed for EUL on 12 March 2021. The Moderna COVID-19 vaccine (mRNA 1273) was listed for EUL on 30 April 2021 and the Sinopharm COVID-19 vaccine was listed for EUL on 7 May 2021. The Sinopharm vaccine is produced by Beijing Bio-Institute of Biological Products Co Ltd, subsidiary of China National Biotec Group (CNBG). The Sinovac-CoronaVac was listed for EUL on 1 June 2021. As of 25 August 2021, a total of 4,953,887,422 vaccine doses have been administered. In large, randomized-controlled trials, vaccines were found to be safe and efficacious in preventing symptomatic, laboratory-confirmed COVID-19. However, a small percentage of fully vaccinated persons will develop symptomatic or asymptomatic infections with SARS-CoV-2, the virus that causes COVID-19. A vaccine breakthrough infection is defined as the detection of SARS-CoV-2 RNA or antigen in a respiratory specimen collected from a person ≥14 days after receipt of all recommended doses of an FDA-authorized COVID-19 vaccine. A total of 10,262 SARS-CoV-2 vaccine breakthrough infections had been reported from 46 U.S. states and territories as of April 30, 2021. Among these cases, 6,446 (63%) occurred in females, and the median patient age was 58 years (interquartile range = 40-74 years). Based on preliminary data, 2,725 (27%) vaccine breakthrough infections were asymptomatic, 995 (10%) patients were known to be hospitalized, and 160 (2%) patients died.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Nov 2021
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 2, 2021
CompletedFirst Posted
Study publicly available on registry
September 5, 2021
CompletedStudy Start
First participant enrolled
November 1, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2022
CompletedSeptember 13, 2021
September 1, 2021
1 year
September 2, 2021
September 4, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
assess the prevalence of COVID-19 infection after vaccination
number of cases with covid-19 after vaccination
one year
Secondary Outcomes (2)
evaluate the severity of infection after vaccination
2 weeks
Predict possible risk factors of post vaccination infection
one year
Study Arms (2)
Group A
People received any registered COVID-19 vaccination
Group B
People developed COVID-19 infection after partial or full vaccination with any registered COVID-19 vaccine
Interventions
Astra Zeneka vaccine, Sinopharm vaccine, Sinovac vaccine, Jonson and Jonson vaccine, Spotnic V vaccine
Eligibility Criteria
Group A: people receive vaccination at the study period will be followed by phone calls or email for any new infection. Group B: patients who will be confirmed to have recent COVID-19 infection who visit outpatient clinic or admit to ward or ICU of Assiut University hospital at study period.
You may qualify if:
- Patients 18 years old and above of both genders.
- Received at least one dose of COVID-19 registered vaccines.
- Diagnosed COVID-19 positive after vaccination by real time PCR (confirmed case) or combined clinical and radiological diagnosis (possible case).
You may not qualify if:
- Children less than 18 years.
- Cases non vaccinated with COVID-19 registered vaccine
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
AssiutU
Asyut, 71111, Egypt
Pulmonology Departments
Asyut, 71111, Egypt
Aliae AR Mohamed-Hussein
Asyut, 71515, Egypt
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 1 Year
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Pulmonology
Study Record Dates
First Submitted
September 2, 2021
First Posted
September 5, 2021
Study Start
November 1, 2021
Primary Completion
November 1, 2022
Study Completion
December 31, 2022
Last Updated
September 13, 2021
Record last verified: 2021-09