1. Study identification
EU PAS Register NumberEUPAS4574
Official titleFrench Adult primary Immune Thrombocytopenia: a pHarmacoepidemiological study
Study title acronymFAITH
Study typeObservational study
Brief description of the studyPrimary immune thrombocytopenia (ITP) is rare. First-line treatment is corticotherapy. Then, several second-line treatments (SLT) are available: splenectomy, off-label rituximab and thrombopoietin-receptor agonists since 2009. The compared efficacy and safety on clinical events in the long-term are unknown. The main objective of the FAITH study is to build the cohort of all treated adult persistent (≥3 months) primary ITP patients in France, to assess the benefit-to-risk ratio of SLT in real-life practice. Data source is the database of French Health Insurance System (SNIIRAM) which covers the entire French population. It collects demographic, chronic disease, hospitalization and drug dispensing data. All patients with ITP were extracted from 2009 to 2012, and then every year for 10 years. We will build the cohort from raw data. Outcomes (death, hospitalization, drug dispensing) will be compared according to SLT, with controls from the general population and untreated patients.
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
Department/Research groupPharmacoepidemiology research team
Organisation/affiliationUniversity of Toulouse 3 and INSERM 1027
Details of (Primary) lead investigator
Title Dr
Last name Lapeyre-Mestre
First name Maryse
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
France
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed15/10/201315/10/2013
Start date of data collection15/10/201315/10/2013
Start date of data analysis15/10/201315/10/2013
Date of interim report, if expected01/05/201510/10/2014
Date of final study report01/05/2023
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companies
Charities
Government body
Research councilsUniversity of Toulouse100
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Moulis
First name Guillaume
Address line 1UMR1027, team 6
Address line 2Faculté de Médecine
Address line 337 allées Jules Guesde
CityToulouse
Postcode31000
CountryFrance
Phone number (incl. country code)33561145606
Alternative phone number
Fax number (incl. country code)33561145928
Public Enquiries
Title Dr
Last name Moulis
First name Guillaume
Address line 1UMR1027, team 6
Address line 2Faculté de Médecine
Address line 337 allées Jules Guesde
CityToulouse
Postcode31000
CountryFrance
Phone number (incl. country code)33561145606
Alternative phone number
Fax number (incl. country code)33561145928
6. Study drug(s) information
Single-Constituent (Substance INN)RITUXIMAB
Single-Constituent (Substance INN)ELTROMBOPAG
Single-Constituent (Substance INN)ROMIPLOSTIM
7. Medical conditions to be studied
Medical condition(s)Yes
Autoimmune thrombocytopenia
8. Population under study
Age
Adults (18 - 44 years)
Adults (45 - 64 years)
Adults (65 - 74 years)
Adults (75 years and over)
Sex
Male
9. Number of subjects
Estimated total number of subjects10000
Additional information
Around 1000 cases/year and 4000 controls/year of the study
10. Source of data
Is this study being carried out with an established data source?Yes
Data sources not registered with ENCePP
SNNIR-AM, France
Sources of data
Administrative database, e.g. claims database
Pharmacy dispensing records
11. Scope of the study
What is the scope of the study?
Disease epidemiology
Risk assessment
Drug utilisation study
Effectiveness evaluation
Primary scope : Drug utilisation study
12. Main objective(s)
What is the main objective of the study?
To build a national cohort of adult incident persistent or chronic primary ITP patients to describe exposure to available second-line treatments (in 2013, splenectomy, rituximab and TPO-RA).
Are there primary outcomes?Yes
Delivered data are raw. We will constitute the cohort as follows: 1) exclusion of probable erroneous codes; 2) exclusion of secondary ITP; 3) definition of diagnosis date through drug dispensing; 4) restriction to incident patients; 5) restriction to adults (≥18 years); 6) restriction to persistent or chronic ITP; 7) definition of index date (first persistent ITP treatment).
Are there secondary outcomes?Yes
Mortality: the date of death is indicated in the SNIIRAM.
Efficacy outcomes: hospitalization for bleeding; ITP drug withdrawal; non-introduction of a new treatment for ITP; cumulative dose of corticosteroids.
Safety outcomes: infections (hospitalizations or antibiotics dispensing); hospitalizations for cardio-vascular and venous thrombo-embolic events; cancers (including hematological).
13. Study design
What is the design of the study?
Cohort study
14. Follow-up of patients
Will patients be followed up?Yes
Please describe duration of follow up
Patients will be selected from 2009 to 2012, and then annual extarction during ten years will be performed. As a result, a patient will be followed up from 1 to 12 years.
15. Data analysis plan
Please provide a brief summary of the analysis method
Exposure to drugs will be calculated with Defined Daily Doses when applicable. For outcome occurrence assesment, Cox models will be performed. Time-varying analyses will be used to assess drug exposure.