transfer of expertise on rare metabolic disease in adults ... · • phenylketonuria •...
TRANSCRIPT
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Transfer of expertise on rare metabolic disease in adults:
the TEAM-study
Karolinska Hospital, StockholmMay 11, 2001
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EU-programmes
Community Action on Rare Diseases1: Information databases2: Training of professionals3: Support of patient groups4: Epidemiologic surveillance
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TEAM-study
Transfer of Expertise on rAreMetabolic diseases in adults
Harold W de ValkZaira M BarrientosDept. Internal MedicineUniversity Medical Center Utrecht, The Netherlands
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TEAM-study
Essential starting points• Lack of knowledge on a new patient group• Available information is scattered among
experts and not easily found• Available information is not easily
conceptually accesible and quality or scientific foundation of information (very) uncertain
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TEAM-study
Potential consequences• Delay in diagnosis• Delay in initiation treatment• Erroneous choice of treatment• Negative influence on prognosis and
quality-of-life
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TEAM-study
The birth of the TEAM-study• Choice of the item in the EU-programme (#2)• Elements of a EU-grant proposal
- background & aims and objectives- project mechanism & feasibility of the mechanism- deliverables- subsidiarity- community-wide application- after the project has come to an end….
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TEAM-study
Essentials of the TEAM-studyBackground & aims and objectives
“Mission statement”“To provide quality assessment of current knowledgeon aetiology, epidemiology, diagnosis, treatment,complications and prognosis in adult patients with raremetabolic diseases; design, creation and try-out oftrainings for professionals based on an elementaryconsensus after conclusion of quality assessment”
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Quality assessment
“Consensus”
Training sessions
Dissemination of quality-assessed expertise
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What’s happening in a physician’s mind
Clinical process
Clinical problem-medical history-physical examination
Hypothesis-Knowledge-Experience-Intuition-Luck- ………...Tests
Diagnosis Therapy & Prognosis
Database
Database Database
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TEAM-study
Essentials of the TEAM-studyMechanism of the project & feasibilty of mechanism• Formation of groups of diseases• Choice of experts in the field (6)• Recruiting them for the TEAM-approach• Quality assessment mechanism (Cochrane)• Consensus• Design and creation of trainings• Try-out of trainings
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TEAM-study
The different expert groupsGroup 1: Amino acids I • Phenylketonuria• Alkaptonuria• Tyrosinaemia
Utrecht, The Netherlands
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Example expert-group
Members
Subgroup-coordinator
Phenylketonuria
Members
Subgroup-coordinator
Alkaptonuria
Members
Subgroup-coordinator
Tyrosinaemia
Amino acid disorder IHead-coordinator
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TEAM-study
The different expert groupsGroup 2: Amino acids II• Homocystinuria• Maple syrup disease• Urea cycle defects• Hyperornithinemia
Padova, Italy
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TEAM-study
The different expert groupsGroup 3: Carbohydrate disorders• Galactosaemia• Glycogen storage diseases• Fructose disorders
London, UK
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TEAM-study
The different expert groupsGroup 4: Organic acidurias• Propionic acidemia (PA)• Methylmalonic aciduria (MMA)• Isovalericaciduria (IVA)
Madrid, Spain
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TEAM-study
The different expert groupsGroup 5: Fatty acid disorders• LCHAD, MCAD, LCAD, SCAD• CPT• vLCAD• TFP
Lisbon, Portugal
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TEAM-study
The different expert groupsGroup 6: Other disorders• ALD• Lysosomal disorders• Peroxisomal disorders
Paris, France
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Basic considerations of theTEAM-approach
• Systematic review of current expertise
systematic review of publications• Systematic means:
-adequate and comprehensive search strategy-accountability of inclusion or exclusion-reproducibility of inclusion or exclusion
• Applies to all types of studies
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Systematic review (1)
Systematic reviews• Unit of research: publication (abstracts included?)• Definition of a research question • Definition of the search strategy• Accountability of inclusion non-inclusion: selection• Judgment on the merits of publications: appraisal• Transparent presentation of the results: review
Prevention of bias as much as possible
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Systematic reviews (2)
The making of a systematic review1: Definition of a research question2: Writing of a specific protocol3: Search strategy including various items4: Selection and appraisal of publications5: Pooling of data if possible and indicated6: Presentation of the data
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Systematic reviews (3)
Selection strategy• Selection of publications: In/exclusion criteria
-age-sex-intervention-follow-up duration
• Transparent selection on predesigned form• Entry of all publications in Reference manager by
coordinating center
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Systematic reviews (4)
Selection of publications• No restriction in language (Tower of Babel bias)• Unpublished results or abstracts-only research
-publication bias?-quality deficit of unpublished results?-presentation bias
• Blinded selection
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Systematic reviews (5)
Appraisal of publications• Internal validity• External validity• Quantitative aspects (data presentation)• Other relevant items encountered
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Systematic reviews (6)
Major items in appraisal of relevant publications-Description of the studied population-Diagnostic procedures-Randomization-Study intervention-Assessment-Follow-up-Side-effects
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Specific review question
• The specific review question determines search strategy• The better specified the question, the more tailored the
search strategyEXAMPLE:
-frequency of congenital abnormalities in MPKU-follow-up of adults with PKU-is premature dementia a symptom of carriers ofmethylmamlonic aciduria
• More than one question on a specific item is possible
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Items to be considered
• Epidemiology of the disease (prevalence)• Causes and genetics• Clinical presentation• Diagnostic procedures• Therapeutic interventions and strategies• Prognosis
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StructureSpecific review question
Type of study Search strategy
Selection of studies Appraisal of studies
Results Pooling/synthesis
Discussion & Conclusion
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Cochrane initiative
Collective (EU-programme)
Expert group Expert group Expert group Expert group Expert group Expert group
Cochrane analyses Other products
TrainingsConsensus
Other initiatives
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TEAM-study
Essentials of the TEAM-studyDeliverables• Trainings on rare metabolic diseases in adults based
on quality-assessed expertise and based on subsequent elementary consensus
• Trainings for professionals to provide dissemination of new and applicable knowledge
• Accessible knowledge in a database; electronic and non-electroninc dissemination
• Trainings in different languages and for other professionals
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TEAM-study
Essentials of the TEAM-studySubsidiarity• Participation of and input from different centers and
countries of the EU
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TEAM-study
Essentials of the TEAM-studyCommunity-wide application• Accessible information database by Internet• Accessible database by non-electronic means• Trainings in different countries and different
languages, accomodating differences in culture
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TEAM-study
Essentials of the TEAM-studyAfter the project has come to an end• Continuation of the trainings (fees for particpation,
other sources)• Updating of the trainings • TEAM-study as initiator of collaborative networks
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This report was produced by a contractor for Health & Consumer Protection Directorate General and represents the views of the contractor or author. These views have not been adopted or in any way approved by theCommission and do not necessarily represent the view of the Commission or the Directorate General for Health and Consumer Protection. The European Commission does not guarantee the accuracy of the dataincluded in this study, nor does it accept responsibility for any use made thereof.