Status: Ongoing
First registered on:
02/08/2021
Last updated on:
16/11/2022
1. Study identification
EU PAS Register NumberEUPAS42328
Official titleBrand-specific COVID-19 vaccine effectiveness against severe COVID-19 disease in Europe A contribution of COVIDRIVE, a public-private partnership to estimate brand-specific COVID-19 vaccine effectiveness in Europe.
Study title acronym
Study typeObservational study
Brief description of the studyThis protocol details a non-interventional study to estimate the effectiveness of COVID-19 vaccines against COVID-19 related hospitalisations through the COVIDRIVE partnership. In addition, the potential for vaccine-associated enhanced disease (VAED) will be studied as part of this vaccine effectiveness study as VAED relates to the efficacy/effectiveness outcomes.
This is a prospective, multi-centre, hospital-based, case-control study with test-negative controls (test-negative case-control design). Data will be collected through a wide network of hospitals located in several European countries and
the UK.
Was this study requested by a regulator?No
Is the study required by a Risk Management Plan (RMP)?
EU RMP category 3 (required)
Regulatory procedure number (RMP Category 1 and 2 studies only)
Other study registration identification numbers and URLs as applicable
2. Research centres and Investigator details
Coordinating study entity
Centre nameCOVIDRIVE
Centre locationBelgium
Details of (Primary) lead investigator
Title Dr
Last name Bollaerts
First name Kaatje
Is this study being carried out with the collaboration of a research network?
Yes
COVIDRIVE
Other centres where this study is being conducted
Multiple centres
In total how many centres are involved in this Study?8
FISABIO, Spain
CIRI-IT, Italy
Hospital Germans Trias i Pujol, Spain
Hospital Universitari Vall d´Hebron, Spain
Klinik Favoriten, Austria
St Pierre University Hospital, Belgium
Antwerp University Hospital, Belgium
Grand Hôpital de Charleroi, Belgium
Countries in which this study is being conducted
International study
Austria
Belgium
Italy
Spain
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed15/08/2021
Start date of data collection15/08/202108/09/2021
Start date of data analysis
Date of interim report, if expected
Date of final study report29/12/2023
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesAstraZeneca, Janssen, Moderna, Novavax100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Bollaerts
First name Kaatje
Address line 1Koning Leopold III laan 1
Address line 2
Address line 3
CityHeverlee
Postcode3001
CountryBelgium
Phone number (incl. country code)32485789657
Alternative phone number
Fax number (incl. country code)
Public Enquiries
Title Mrs
Last name Rebry
First name Griet
Address line 1Koning Leopold III laan 1
Address line 2
Address line 3
CityHeverlee
Postcode3100
CountryBelgium
Phone number (incl. country code)32479462164
Alternative phone number
Fax number (incl. country code)
6. Study drug(s) information
Not applicable (disease/epidemiology study)
7. Medical conditions to be studied
Medical condition(s)Yes
Respiratory tract infections
Additional Medical Condition(s)
Severe Acute Respiratory Infection (SARI)
8. Population under study
Age
Adolescents (12 - 17 years)
Adults (18 - 44 years)
Adults (45 - 64 years)
Adults (65 - 74 years)
Adults (75 years and over)
Sex
Male
Female
9. Number of subjects
Estimated total number of subjects1280
Additional information
A simulation based sample size calculation was performed. For a study conducted in 10 sites, an overall vaccination coverage of 70% in the study population, the COVID-19 Vaccine Brand representing 25% of the vaccinations, a 1:1 case control ratio and an assumed CVE of 80%, having at least 640 COVID-19 cases in the brand-specific analytical dataset yields an expected 95% CIs range of around 20%.
10. Source of data
Is this study being carried out with an established data source?No
Sources of data
Prospective patient-based data collection
Administrative database, e.g. claims database
Routine primary care electronic patient registry
Exposure registry
Other = Vaccination registries, vaccination cards, medical records, laboratory data (RT-PCR and genetic variants).
11. Scope of the study
What is the scope of the study?
Effectiveness evaluation
Primary scope : Effectiveness evaluation
12. Main objective(s)
What is the main objective of the study?
1. To estimate brand-specific CVE against hospitalisation due to laboratory-confirmed SARS-CoV-2 in SARI patients who have been vaccinated with at least 1 dose.
2. To estimate brand-specific CVE against hospitalisation due to laboratory-confirmed SARS-CoV-2 in SARI patients who have been fully vaccinated according to the national/regional immunisation recommendations.
Are there primary outcomes?Yes
The outcome of interest for the primary analysis will be SARS-CoV-2 detection in patients hospitalised with SARI symptoms. SARS-CoV-2 infection should be laboratory-confirmed by RT-PCR. As the SARS-CoV-2 testing practices might change over time, the requirement of confirmation by PCR might be revisited. The impact of such revisions on the potential for disease misclassification will be considered.
Are there secondary outcomes?Yes
Secondary:
Detection of SARS-CoV-2 genetic variants in patients hospitalized due to laboratory confirmed SARS-CoV-2.
Exploratory:
-Hospitalisation due to lab-confirmed SARS-CoV-2 by level of severity.
-Clinical and laboratory features of critical COVID-19 disease is defined as being admitted to Intensive Care Unit.
13. Study design
What is the design of the study?
Case-control study
Prospective and retrospective hospital-based test-negative case-control study
14. Follow-up of patients
Will patients be followed up?Yes
Please describe duration of follow up
After study enrollment, data will be collected directly from the patient or by consulting medical records. Minimum info includes date of SARI symptom onset, date of hospitalisation, information on potential confounders.
Detailed clinical symptoms of severely ill patients will be collected.
15. Data analysis plan
Please provide a brief summary of the analysis method
Descriptive analyses will be performed to describe the study population, the evolution of the SARS-CoV-2 dynamics and the COVID-19 vaccination coverage for the brands of interest.
Pooled CVE estimates will be obtained through random-effects meta-analysis on the log-transformed site-specific estimates, where the latter are being obtaining using logistic regression adjusting for the confounders above. Restricted maximum likelihood will be used to obtain the pooled meta-analyses estimates and 95% confidence intervals (CI). The modified Hartung-Knapp correction will be used to estimate the variance of the mean effect. The estimates and 95% CIs will then be back-transformed to
obtain the pooled CVE estimates and 95% CI. Sensitivity analyses will be conducted when appropriate.
When hospital controls will be collected, pooled CVE estimates will be obtained for each type of control group.
A full statistical analysis plan (SAP) will be developed prior to the conduct of the analysis.
16. ENCePP seal
Are you requesting the ENCePP seal for this study?
No
17. Full protocol
18. Study Results
Not submitted
Please list the 5 most relevant publications using data from your study
ReferenceLink to web-publication
None
19. Other relevant documents
Conflict(s) of interest of
investigator(s)Not submitted
Composition of Steering Group and
ObserversNot submitted
Other documentsNot
submitted
Signed Code of
Conduct Checklist
Not submitted
Signed Code of Conduct Declaration
Not submitted
Signed Checklist for Study
Protocols
Not submitted
