Status: Finalised
First registered on:
02/09/2015
Last updated on:
11/04/2018
1. Study identification
EU PAS Register NumberEUPAS10837
Official titleA pharmacoepidemiological study on the risk of bleeding in new users of low-dose aspirin (ASA) in The Health Improvement Network (THIN) UK
Study title acronymEPISAT
Study typeObservational study
Brief description of the studyTo investigate the risk of major bleeding (including gastrointestinal and intracranial bleeding episodes) among new users of low-dose acetylsalicylic acid (ASA) in clinical practice.
These will be based on population-based cohorts using data from a primary care database in the UK: The Health Improvement Network (THIN) and will serve to make a clinically meaningful benefit–risk assessment regarding major bleeding consequences of ASA exposure in 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 to which the investigator belongsCEIFE
Department/Research groupFundación Centro Español de Investigación Farmacoepidemiológica
Organisation/affiliationFundación CEIFE
Details of (Primary) lead investigator
Title Dr
Last name García Rodríguez
First name Luis Alberto
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
United Kingdom
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed10/08/201510/08/2015
Start date of data collection01/09/201501/09/2015
Start date of data analysis
Date of interim report, if expected
Date of final study report15/04/201731/03/2017
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesBayer Pharma AG100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name García Rodríguez
First name Luis Alberto
Address line 1Almirante 28
Address line 2
Address line 3
CityMadrid
Postcode28004
CountrySpain
Phone number (incl. country code)34915313404
Alternative phone number
Fax number (incl. country code)34915312871
Public Enquiries
Title Dr
Last name Bayer AG
First name Bayer Clinical Trials Contact
Address line 1Muellerstrasse 178
Address line 2
Address line 3
CityBerlin
Postcode13342
CountryGermany
Phone number (incl. country code)49-30300139005
Alternative phone number
Fax number (incl. country code)
6. Study drug(s) information
Substance class (ATC Code)B01AC
7. Medical conditions to be studied
Medical condition(s)Yes
Intracranial Bleeding, Upper and Lower Gastrointestinal Bleeding
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
9. Number of subjects
Estimated total number of subjects400000
Additional information
Planned number of patients per cohort is 200,000. The actual number of subjects for both cohorts (Aspirin and non Aspirin users) is 398,158.
10. Source of data
Is this study being carried out with an established data source?No
Sources of data
Routine primary care electronic patient registry
Pharmacy dispensing records
11. Scope of the study
What is the scope of the study?
Risk assessment
Primary scope : Risk assessment
12. Main objective(s)
What is the main objective of the study?
The main objective of this study is to investigate the risk of major bleeding (including gastrointestinal and intracranial bleeding episodes) among new users of low-dose acetylsalicylic acid (ASA) in clinical practice.
Are there primary outcomes?Yes
-Incidence of Intracranial bleeding, Upper gastrointestinal(UG) bleeding and Lower gastrointestinal(LG) bleeding among new users of low-dose Acetylsalicylic acid(ASA)
-Time to Intracranial bleeding, UG bleeding and LG bleeding among new users of low-dose ASA
-Relative risk of Intracranial bleeding, UG bleeding and LG bleeding among new users of low-dose ASA
Are there secondary outcomes?Yes
-Relative risk of Intracranial bleeding associated with use of other medications
-Relative risk of Upper gastrointestinal bleeding associated with use of other medications
-Relative risk of Lower gastrointestinal bleeding associated with use of other medications
13. Study design
What is the design of the study?
Cohort study
Case-control study
14. Follow-up of patients
Will patients be followed up?Yes
Please describe duration of follow up
From 2000 up to 2013
15. Data analysis plan
Please provide a brief summary of the analysis method
Incidence, time to event, relative risk (overall and in age and sex-specific, duration and dose response.
16. ENCePP seal
Are you requesting the ENCePP seal for this study?
No
17. Full protocol
18. Study Results
Please list the 5 most relevant publications using data from your study
ReferenceLink to web-publication
Cea Soriano L, Gaist D, Soriano-Gabarró M, Bromley S, García Rodríguez LA. Low-dose aspirin and risk of intracranial bleeds: An observational study in UK general practice. Neurology. 2017 Nov 28;89(22):2280-2287. doi:10.1212/WNL.0000000000004694.Epub 2017 Nov 1. PMID:29093065
Cea Soriano L, Gaist D, Soriano-Gabarró M, García Rodríguez LA. Incidence of intracranial bleeds in new users of low-dose aspirin: a cohort study using The Health Improvement Network. J Thromb Haemost. 2017 Jun;15(6):1055-1064. doi:10.1111/jth.13686. Epub 2017 May 2. PMID:28371181
19. Other relevant documents
Conflict(s) of interest of
investigator(s)Not submitted
Composition of Steering Group and
ObserversNot submitted
Other documents
DescriptionDocumentLatest version
Signed Code of
Conduct Checklist
Not submitted
Signed Code of Conduct Declaration
Not submitted
Signed Checklist for Study
Protocols
Not submitted
