Status: Finalised
First registered on:
07/05/2015
Last updated on:
18/12/2019
1. Study identification
EU PAS Register NumberEUPAS9678
Official titleA Joint Drug Utilisation Study (DUS) of valproate and related substances, in Europe, using databases
Study title acronym
Study typeObservational study
Brief description of the studyThe aim of this study is to describe the prescribing practices before and after the dissemination of risk minimisation measures (i.e. educational materials and Dear Healthcare Professional Communication) and to assess the effectiveness of these measures in females through measure of prevalence of prior medication used before valproate.
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 belongsIQVIA
Department/Research group
Organisation/affiliationIQVIA
Details of (Primary) lead investigator
Title Dr
Last name Toussi
First name Massoud
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
International study
France
Germany
Spain
Sweden
United Kingdom
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed15/06/201501/03/2016
Start date of data collection31/03/201631/03/2016
Start date of data analysis15/06/201615/06/2016
Date of interim report, if expected31/01/201723/12/2016
Date of final study report31/08/201928/06/2019
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesConsoritum of 22 MAH, led by Sanofi Aventis100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Massoud
First name Toussi
Address line 117 bis Place des Reflets
Address line 2Tour D2
Address line 3
CityParis La Défense
Postcode92088
CountryFrance
Phone number (incl. country code)33-1413-51335
Alternative phone number
Fax number (incl. country code)
Public Enquiries
Title Dr
Last name Massoud
First name Toussi
Address line 117 bis Place des Reflets
Address line 2Tour D2
Address line 3
CityParis La Défense
Postcode92088
CountryFrance
Phone number (incl. country code)33-1413-51335
Alternative phone number
Fax number (incl. country code)
6. Study drug(s) information
Single-Constituent (Substance INN)SODIUM VALPROATE
Single-Constituent (Substance INN)VALPROATE SEMISODIUM
Single-Constituent (Substance INN)VALPROMIDE
Single-Constituent (Substance INN)VALPROIC ACID
7. Medical conditions to be studied
Medical condition(s)Yes
Pregnancy
Contraception
8. Population under study
Age
Adolescents (12 - 17 years)
Adults (18 - 44 years)
Adults (45 - 64 years)
Sex
Female
Other population
Pregnant women
9. Number of subjects
Estimated total number of subjects30000
Additional information
In parallel, HTI database contains data from 4.366 patients with injectable use of valproate between the January 1st, 2010 and the March 31st, 2014.
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
IMS Lifelink Disease Analyzer, Germany
Sources of data
Routine primary care electronic patient registry
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?
The primary study objective is to describe prescribing patterns in the outpatient setting during the pre- and post-implementation periods, with the description of:
- Demographic characteristics of female users of valproate in oral form.
- Valproate treatment characteristics, medical history prior to valproate initiation, prior and concomitant medications with valproate related to the indication
Are there primary outcomes?Yes
The assessment of the effectiveness of the risk minimisation measures in the outpatient setting will take into account the number of patients with at least one medication used prior the valproate initiation and related to the valproate indication (epilepsy, bipolar troubles, migraine headaches and other) within 12 months before the index date.
Are there secondary outcomes?Yes
To describe the prescribing practices of valproate before and after the dissemination of risk minimisation measures in the outpatient setting, the following parameters will be considered:
- Demographic characteristics of initiated valproate users:
o Age of included patients
- Medical history related to valproate initiation up to 2 years before the index date (epilepsy, bipolar troubles, ...
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?Not applicable/no follow-up
15. Data analysis plan
Please provide a brief summary of the analysis method
The main analysis will compare the prescribing patterns of valproate during the pre- and post- implementation periods in females and in the outpatient settings, to meet the primary study objective. The analysis will be descriptive in nature. Descriptive statistics will be provided for the patients, treatments and diagnosis characteristics.
Categorical variables will be presented as counts (n), proportions (%) and confidence interval (CI) when relevant . Continuous variables will be presented as means with standard deviation (SD) and as medians with inter quartile range (IQR) as appropriate.
Results will be displayed by period before and after the implementation of RMMs, and by country. The main periods in the pre- and post-implementation periods will be considered as primary analysis and the transition periods will be considered for sensitivity analysis.
16. ENCePP seal
Are you requesting the ENCePP seal for this study?
No
17. Full protocol
Not submitted
18. Study Results
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
