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CURRENT ADVERSE EVENTS REPORTING IN HEMOPHILIA
Alfonso Iorio, McMaster University, Canada Chair, Data and Demographics Committee, WFH Chair, Canadian Bleeding Disorders Registry PI, Canadian Hemophilia Surveillance Scheme Sunday, July 24, 2016 08:30-11:30 PD-S-01 SHOW ME THE DATA! CHALLENGES AND OPPORTUNITIES IN DATA COLLECTION Room: 307 Chair: Alfonso Iorio, Canada
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Disclosures for: Alfonso Iorio
In compliance with the PIM* policy, WFH requires the following disclosures be made at each presentation CONFLICT Disclosure — if conflict of interest exists Research Support McMaster receives support for research in hemophilia by Bayer, Biogen, Octapharma, Novo-Nordisk, Pfizer, Shire Director, Officer, Employee Data and Demographics committee, WFH Shareholder Honoraria Advisory Committee McMaster receives support for services in hemophilia by Bayer, Biogen, Octapharma, Novo-Nordisk, Pfizer, Shire Consultant * Postgraduate Institute for Medicine 2
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Click to edit Master title style
FIRST THEME NAME AGENDA Click to edit Master title style What is the evidence? What is the use we can make of it? What could everyone role be? 3
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Clinical Trial Phases Phase Study type Pre-clinical Animal studies 1
Safety in human volunteers 2 Dosing - efficacy 3 Efficacy comparison with gold standard treatment 4 Post marketing surveillance - Pharmacovigilence
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What you get is related to what you put…
Why RECOMBINANT concentrates cause more cold and headache than PLASMA DERIVED one? What you get is related to what you put… Pre-licensure trials use a super-powerful magnifying lens to look at one side only of the whole story.. Add the image of a croach through a lens… Text appears later 5
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Monitoring safety after licensing
Post marketing surveillance Formal requirement Reporting schemes EUHASS, CHESS, UKHCDO, FranceCoag, Rodin, ATHN National schemes Reporting by doctors, nurses, data managers and patients
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Monitoring safety after licensing
Post marketing surveillance Formal requirement Reporting schemes EUHASS, CHESS, UKHCDO, FranceCoag, Rodin, ATHN National schemes Reporting by doctors, nurses, data managers and patients
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POST MARKETING SURVEILLANCE
Photo of the air-force one an gorgeous bosy guard
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POST MARKETING SURVEILLANCE
After RODIN publication, I (as an educated citizen // cumbersome open access ) have accessed the Health Canada database: over 10 years, 6.7 more inhibitor with kogenate (27 vs 4)
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POST MARKETING SURVEILLANCE
Photo of a toothbrush and toothpaste
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Post-hoc analysis of post-marketing surveillance studies
Iorio A et al. Patient data meta-analysis of Post-Authorization Safety Surveillance (PASS) studies of haemophilia A patients treated with rAHF-PFM. Haemophilia. 20(6), 777–83 (2014). Romanov V et al. Evaluation of Safety and Effectiveness of factor VIII treatment in Hemophilia A patients with low titer inhibitors or a personal history of inhibitor. Thromb. Haemost. 114, 56–64 (2015). Bayesian approach to the assessment of the population specific risk of inhibitors in Hemophilia A patients: a case study. Journal of Blood Medicine, accepted
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Monitoring safety after licensing
Post marketing surveillance Formal requirement Reporting schemes EUHASS, CHESS, UKHCDO, FranceCoag, Rodin, ATHN National schemes Reporting by doctors, nurses, data managers and patients
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Monitoring safety after licensing
EUHASS UKHCDO RODIN FranceC ATHN CHESS Nat 1 Nat 2
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Monitoring safety after licensing
Effort By program characteristics EUHASS CHESS UKHCDO RODIN FranceC ATHN Nat 1 Nat 2 Size
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Monitoring safety after licensing
Richness By data characteristics EUHASS CHESS UKHCDO RODIN FranceC ATHN Nat 1 Nat 2 Coverage
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Monitoring safety after licensing
Add images for the concepts
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EUHASS (European Haemophilia Safety Surveillance)
AE surveillance scheme All adverse events inc inhibitors All products All inherited bleeding disorders All severities Prospective (1st Oct 2008) Sentinel centres in Europe to Dec 37,675 patients in 78 HTC from 26 EU countries
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Concentrates Used Jan 2014- Dec 2014 69 Different Products
Recombinant Advate, 2580 Kogenate/Helixate, 2578 ReFacto AF 1695 BeneFix, 1187
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EUHASS Patients Under Surveillance Jan 2014- Dec 2014
Total Severe Concentrate /FFP treated during the year Factor V 567 105 38 Factor VII 2491 374 178 Factor X 553 80 69 Factor XI 2913 358 65 Factor XIII 201 116 106
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SELECTED Events Reported
AE Year 1-6 Inhibitors – recurrence 35 Thrombosis within 30 days of concentrate 88 Thrombosis with no concentrate in 30 days 59 Malignancies 319 Deaths 563 TOTAL 1064
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Myocardial infarction / angina 16/3 Stroke/TIA 7/7
Thromboses within 30 days of concentrate: Years 1-6 (Oct 2008-Dec 2014) Event Number Myocardial infarction / angina 16/3 Stroke/TIA 7/7 Venous thromboembolism 33 Port thrombosis 7 Other 15 TOTAL 88
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Malignancy type Oct 2008-Dec 2014
Number Hepatocellular carcinoma 68 Gastrointestinal 36 Lung 26 Lymphoma 25 Other 164
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Large scale studies: Strengths
Large numbers No selection bias Prospective Long duration Earlier results Quicker identification of danger signals All products monitored at same time Not industry led Less costly than industry studies Collaboration between participants for other projects
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Large scale studies: limitations
Accuracy of diagnosis of severe hemophilia (<1% vs 1+%) Uncertainty about reporting of all events No standard protocol for inhibitor testing No central lab inhibitor testing Limited details about risk factors (eg peak treatment moments, genetic analysis etc) Limited data on inhibitor peak height and persistence Limited data on inhibitor significance in terms of FVIII recovery No audit visits EUHASS model overestimates PUP inhibitor rate for new products No definite proof that the EUHASS model for PUP inhibitor estimation is accurate
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Acknowledgements Mike Makris for the slides on EUHASS EUHASS/CHESS network collaborators Slides at
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