Status: Finalised
First registered on:
06/10/2014
Last updated on:
21/03/2019
1. Study identification
EU PAS Register NumberEUPAS7619
Official titleRisk of Venous Thromboembolism and All-Cause Mortality in Cancer Patients Treated with Epoetins either with or without Transfusions versus Cancer Patients Treated with Transfusions alone.
Study title acronym
Study typeObservational study
Brief description of the studyThe objective of this study was to assess the risk of venous thromboembolism (VTE) and all-cause mortality in incident cancer patients receiving epoetin treatment either with or without additional transfusions compared to cancer patients receiving blood transfusions alone in Germany in a real world setting for the time period between January 01, 2004 and December 31, 2009.
A nested case-control analysis using conditional logistic regression was conducted to estimate adjusted ORs with corresponding 95% CIs for VTE and treatment with epoetin and/or transfusions in two different time windows. Further, multivariable Cox proportional hazard regression models were applied to assess the risk of all-cause mortality comparing patients receiving epoetin treatment to those treated with transfusions. Therefore a respective time-dependent exposure variable was included.
Was this study requested by a regulator?Yes: EMA, Germany
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 belongsBIPS GmbH
Department/Research groupClinical Epidemiology
Organisation/affiliationLeibniz Inst. for Prevention Research and Epidem.
Details of (Primary) lead investigator
Title Dr
Last name Schink
First name Tania
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
Germany
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed28/02/2012
Start date of data collection01/01/200401/01/2004
Start date of data analysis
Date of interim report, if expected
Date of final study report15/11/2013
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesSTADA Arzneimittel AG100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Schink
First name Tania
Address line 1Achterstraße 30
Address line 2
Address line 3
CityBremen
Postcode28359
CountryGermany
Phone number (incl. country code)004942121856865
Alternative phone number
Fax number (incl. country code)
Public Enquiries
Title Dr
Last name Schink
First name Tania
Address line 1Achterstraße 30
Address line 2
Address line 3
CityBremen
Postcode28359
CountryGermany
Phone number (incl. country code)004942121856865
Alternative phone number
Fax number (incl. country code)
6. Study drug(s) information
Substance class (ATC Code)B03XA01 (erythropoietin)
Substance class (ATC Code)B03XA02 (darbepoetin alfa)
Substance class (ATC Code)B03XA03 (methoxy polyethylene glycol-epoetin beta)
Substance class (ATC Code)B03XA04 (peginesatide)
7. Medical conditions to be studied
Medical condition(s)Yes
Deep vein thrombosis
Pulmonary embolism
Death
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 subjects69888
Additional information
69,888 cancer patients with epoetin or tranfusion.
Of these, 3,316 patients were diagnosed with venous thromboembolism.
10. Source of data
Is this study being carried out with an established data source?Yes
Data sources registered with ENCePP
Sources of data
Administrative database, e.g. claims database
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 was to assess the risk of VTE and all-cause mortality in incident cancer patients receiving epoetin treatment either with or without additional transfusions compared to cancer patients receiving blood transfusions alone in Germany in a real world setting.
Are there primary outcomes?Yes
- Venous thromboembolism (defined as deep vein thrombosis of the leg/hip or pulmonary embolism)
- All-cause mortality was defined as death of any cause. Deaths were identified using core and hospital data searching for death as the reason for end of insurance or the reason for the end of hospitalization, respectively.
Are there secondary outcomes?No
13. Study design
What is the design of the study?
Case-control study
Nested case-control 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
Characteristics of patients at the time of cohort entry and treatment with epoetin and transfusions were described stratified by sex and age at cohort entry, and compared between the five treatment groups (epoetin treatment only, transfusions only, epoetin followed by transfusions, transfusions followed by epoetin, concomitant initiation of transfusions and epoetin).
A nested case-control analysis using conditional logistic regression was conducted to estimate adjusted ORs with corresponding 95% CIs for VTE and recent treatment with epoetin and/or transfusion. Treatment was defined as “recent” if a VTE occurred up to 28 days after the end of the respective therapy.
Multivariable Cox proportional hazard regression models were used to estimate adjusted HRs and related 95% CIs. The main objective was to compare patients receiving epoetin treatment either with or without additional transfusions compared to cancer patients receiving blood transfusions alone.
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
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
