Status: Finalised
First registered on:
04/03/2013
Last updated on:
25/07/2018
1. Study identification
EU PAS Register NumberEUPAS3596
Official titleCilostazol Drug Utilisation Study
Study title acronym
Study typeObservational study
Brief description of the studyDrug utilisation study (DUS) on the use of cilostazol in several European populations The DUS is a cohort study of new users of cilostazol. Five European population-based automated health databases are participating: Spain (IACS and SIDIAP), Germany (GePaRD--pending approvals), the United Kingdom (THIN), and Sweden (Swedish National Databases). The DUS is being conducted in two phases: DUS1 and DUS2. DUS1 has been completed and evaluated cilostazol as used in clinical practice in the target countries during the period from cilostazol launch through 2011. DUS2 will now be conducted after the implementation of changes to the summary of product characteristics (SmPC) and the follow-up communication activities with health care professionals (HCPs) and will evaluate the impact of these measures during the year 2014.
Was this study requested by a regulator?Yes: EMA
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 to which the investigator belongsRTI-HS
Department/Research groupPharmacoepidemiology & Risk Management
Organisation/affiliationRTI Health Solutions
Details of (Primary) lead investigator
Title Dr
Last name Castellsague
First name Jordi
Is this study being carried out with the collaboration of a research network?
No
Other centres where this study is being conducted
Multiple centres
In total how many centres are involved in this Study?4
Countries in which this study is being conducted
International study
Germany
Spain
Sweden
United Kingdom
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed15/01/2013
Start date of data collection08/03/2013
Start date of data analysis09/04/2013
Date of interim report, if expected31/03/2015
Date of final study report18/05/201701/02/2017
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesOtsuka Pharmaceutical Europe, Ltd.100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Castellsague
First name Jordi
Address line 1Trav. Gracia, 56, Atico 1
Address line 2
Address line 3
CityBarcelona
Postcode08006
CountrySpain
Phone number (incl. country code)34932417766
Alternative phone number34932417763
Fax number (incl. country code)34934142610
Public Enquiries
Title Dr
Last name Perez-Gutthann
First name Susana
Address line 1Trav. Gracia, 56, Atico 1
Address line 2
Address line 3
CityBarcelona
Postcode08006
CountrySpain
Phone number (incl. country code)34932417766
Alternative phone number34932417760
Fax number (incl. country code)34934142610
6. Study drug(s) information
Single-Constituent (Substance INN)Cilostazol
7. Medical conditions to be studied
Medical condition(s)Yes
Intermittent claudication
8. Population under study
Age
Children (2 - 11 years)
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 subjects5600
Additional information
Anticipate 5,600 for DUS2
10. Source of data
Is this study being carried out with an established data source?Yes
Data sources registered with ENCePP
Data sources not registered with ENCePP
EpiChron, Spain
National Patient Register, Sweden
Sources of data
Administrative database, e.g. claims database
Routine primary care electronic patient registry
Pharmacy dispensing records
11. Scope of the study
What is the scope of the study?
Drug utilisation study
Primary scope : Drug utilisation study
12. Main objective(s)
What is the main objective of the study?
To describe:
-the characteristics of new users of cilostazol according to 1)demographics, 2)baseline comorbidity including conditions listed in the SmPC and the RMP as potential or identified safety concerns, 3)baseline and concurrent use of medications potentially interacting with cilostazol, and 4)specific comorbidity
-the duration of the use of cilostazol and discontinuation patterns
Are there primary outcomes?Yes
patient characterization and prescription patterns
Are there secondary outcomes?No
13. Study design
What is the design of the study?
Cohort study
Drug utilisation study
14. Follow-up of patients
Will patients be followed up?Yes
Please describe duration of follow up
Each member of the study cohort will be followed from the start date (first prescription for cilostazol) until the first of the following termination dates:
--End of enrolment in the database
--Death
--End of study period
For each member of the study cohort, comorbidity will be assessed for the entire period of data availability before the start date.
15. Data analysis plan
Please provide a brief summary of the analysis method
The use and patterns of use of cilostazol will be summarized by the total number of users, prescriptions, and number of defined daily doses (DDDs), and by the number of users according to daily dose and duration of use. Characteristics of users, comorbidity, comedications, use of interacting drugs, and conditions defined for the evaluation of risk minimization measures, contraindications, indications, off-label use and prescriber speciality will be described as number and percentage of patients with each condition. All analysis will be stratified by age and sex.
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
Castellsague J, Perez-Gutthann S, Calingaert B, Bui C, Varas-Lorenzo C, Arana A, Prados-Torres A, Poblador-Plou B, Gonzalez-Rubio F, Giner-Soriano M, Roso-Llorach A, Linder M, Citarella A, Scholle O, Blenk T, Garbe E. Characterization of new users of cilostazol in the UK, Spain, Sweden, and Germany. Pharmacoepidemiol Drug Saf. 2017 Jan 30. [epub]http://onlinelibrary.wiley.com/doi/10.1002/pds.4167/epdf
Castellsague J, Calingaert B, Poblador-Plou B, Giner-Soriano M, Linder M, Scholle O, Varas-Lorenzo C, Arana A, Bui C, Prados-Torres A, Gonzalez-Rubio F, Roso-Llorach A, Citarella A, Garbe E. Characterization of new users of cilostazol in the United Kingdom, Spain, Sweden, and Germany. Pharmacoepidemiol Drug Saf. 2016;25(S3):203-4.http://onlinelibrary.wiley.com/doi/10.1002/pds.4070/epdf
Jordi Castellsague J, Poblador-Plou B, Giner-Soriano M, Linder M, Scholle O, Calingaert B, Bui C, Arana A, Laguna C, Gonzalez-Rubio F, Roso-Llorach A, Prados-Torres A, Perez-Gutthann S. Effectiveness of risk minimization measures for the use of cilostazol in United Kingdom, Spain, Sweden, and Germany. Pharmacoepidemiol Drug Saf. 2018;1–9.https://onlinelibrary.wiley.com/doi/epdf/10.1002/pds.4584
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
