Status: Finalised
First registered on:
02/08/2019
Last updated on:
02/08/2019
1. Study identification
EU PAS Register NumberEUPAS30792
Official titleAIV - FISABIO Impact and risk of Herpes Zoster in immunosuppressed subjects in Valencia Region, Spain
Study title acronym
Study typeObservational study
Brief description of the studyHerpes Zoster is a disease caused by the reactivation of the varicella-zoster virus in situations of decreased cellular immunity. Among the patients with the highest risk of suffering an HZ are patients with advanced age and immunosuppression of different origin and grade. These subjects would be beyond the scope of the only vaccine that currently exists on the market, as it is a live attenuated virus vaccine. An alternative to this type of vaccine is the inactivated subunit vaccine (glycoprotein E). Primary objective: Estimate the incidence of HZ in immunosuppressed subjects ≥ 18 years in the Valencian Community, between 2009 and 2014, both globally and stratifying by age groups, sex and type of immunodeficiency. Secondary: Estimate the risk of HZ in immunocompromised subjects compared to immunocompetent subjects, compare the consumption of health resources, the risk of complications and the risk of recurrent HZ. To study the impact of HZ on the underlying pathology (immunosuppression), comparing the six months prior to the first diagnosis of HZ with the six months after said diagnosis. To study the risk of HZ and the consumption of resources in immunocompromised patients in comorbidity with diabetes and / or chronic obstructive pulmonary disease and / or heart failure and / or chronic kidney disease, compared to immunocompetent subjects. To estimate the prevalence of immunosuppressive conditions in the general population prior to the first diagnosis of HZ with the six months after that diagnosis. To study the risk of HZ and the consumption of resources in immunocompromised patients in comorbidity with diabetes and / or chronic obstructive pulmonary disease and / or heart failure and / or chronic kidney disease, compared to immunocompetent subjects. Estimate the risk of suffering a recurrent HZ in immunocompromised and immunocompetent subjects. Estimate the prevalence of immunosuppressive conditions in the general population.
Was this study requested by a regulator?No
Is the study required by a Risk Management Plan (RMP)?
Not applicable
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 nameFISABIO
Centre locationValencia
Details of (Primary) lead investigator
Title Dr
Last name Diez-Domingo
First name Javier
Is this study being carried out with the collaboration of a research network?
No
Other centres where this study is being conducted
Not applicable (single centre)
Countries in which this study is being conducted
National study
Spain
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed27/01/2017
Start date of data collection27/02/2017
Start date of data analysis
Date of interim report, if expected
Date of final study report27/09/2018
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesGSK100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Diez-Domingo
First name Javier
Address line 1Avenida Cataluña 21
Address line 2
Address line 3
CityValencia
Postcode
CountrySpain
Phone number (incl. country code)0034961925968
Alternative phone number
Fax number (incl. country code)
Public Enquiries
Title Dr
Last name Diez-Domingo
First name Javier
Address line 1Avenida Cataluña 21
Address line 2
Address line 3
CityValencia
Postcode
CountrySpain
Phone number (incl. country code)0034961925968
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
Immunodeficiency common variable
8. Population under study
Age
Adults (18 - 44 years)
Adults (45 - 64 years)
Adults (65 - 74 years)
Adults (75 years and over)
Sex
Male
Female
Other population
Immunocompromised
9. Number of subjects
Estimated total number of subjects4382590
10. Source of data
Is this study being carried out with an established data source?No
Sources of data
Administrative database, e.g. claims database
Routine primary care electronic patient registry
Exposure registry
11. Scope of the study
What is the scope of the study?
Disease epidemiology
Impact and risk
Primary scope : Impact and risk
12. Main objective(s)
What is the main objective of the study?
To estimate the incidence of HZ in IS subjects 18 years and older in Valencia Region, from 2009 to 2014, both globally and stratified by age groups, sex and immunodeficiency type (HIV, malignancies, organ transplantation, immunodeficiency disorders and autoimmune diseases)
Are there primary outcomes?Yes
An incident case of HZ will be considered the first appearance of a HZ-related ICD-9-CM code (053.xx), in either SIA or CMBD (in any position). Any outpatient medical contact or visit, or hospital admission related to HZ will be considered as a medical encounter. Recurrence of HZ will be examined in all HZ incident cases.
Are there secondary outcomes?Yes
- Health care resources consumption due to HZ:
Outpatient visit.
Hospitalizations.
Length of hospitalization.
Medication.
Periods off work.
- Health care resources consumption due to IS:
Outpatient visits.
Hospitalizations.
Length of hospitalization.
- HZ complications
- Post-herpetic Neuralgia
- Comorbidities
13. Study design
What is the design of the study?
Cohort study
Population based, retrospective cohort study
14. Follow-up of patients
Will patients be followed up?Not applicable/no follow-up
15. Data analysis plan
Please provide a brief summary of the analysis method
We might expect approx. 4 million subjects to fulfil the inclusion criteria. Internal data from a previous study from our team, using the same health databases from Valencia Region and the same ICD-9 codes showed a prevalence of IS of 11.8% in subjects ≥ 50 years old. These data correlate with a published work with a large study population of 51 million subjects and a prevalence of IS of 11.9% for subjects ≥ 50 years old 9. According to this and the published data, the observed prevalence of IS for subjects aged 18 years and older was approx. 7% so, we will expect around 280.000 IS subjects in the present study.
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
