finding a genetics laboratory: the u.s. experience first international conference on
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Finding a Genetics Laboratory: The U.S. Experience First International Conference on Rare Diseases and Orphan Drugs Stockholm, Sweden 2005 Roberta A Pagon, MD University of Washington, Seattle. Introduction to. Availability of Genetic Testing Future Directions. www.genetests.org. - PowerPoint PPT PresentationTRANSCRIPT
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Finding a Genetics Laboratory: Finding a Genetics Laboratory: The U.S. ExperienceThe U.S. Experience
First International Conference on Rare Diseases and Orphan Drugs
Stockholm, Sweden 2005
Roberta A Pagon, MDUniversity of Washington, Seattle
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• Introduction to
• Availability of Genetic Testing
• Future Directions
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www.genetests.org
FUNDED BYNational Institutes of HealthContract No. N01-LM-3503
SPONSORING INSTITUTIONUniversity of WashingtonSeattle, WA
PRINCIPAL INVESTIGATOR: Roberta A Pagon, MD
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• Human Genome Project: Accelerating gene discovery
DNA Testing in Early 1990’sDNA Testing in Early 1990’s
• Molecular genetic testing: High complexity, rare diseases, often one laboratory only
• Finding a laboratory: Required “memory, colleagues, literature, and luck”
• 1993 Helix (now GeneTests Laboratory Directory = "Yellow Pages")
• 1997 GeneClinics (now GeneReviews = "User's Manual")
- Free: Government-funded, university-based
- Audience: Healthcare professionals
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GeneReviews
• Genetic disease descriptions• 285 Reviews (Feb 2005)• One new Review added each week
• Expert-authored, peer-reviewed
• Current information on genetic test use in diagnosis, management, genetic counseling
• Links to genomic databases, patient resources, PubMed citations, policy statements/guidelines
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International Laboratory Directory
~600 Clinical and research laboratories ~1050 Inherited diseases
• ~700 clinical tests• ~350 research only
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Genetics and Prenatal Diagnosis Clinics
• United States: ~ 1000 Clinics
• International: ~ 100 Clinics
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Educational Materials
• Genetic counseling and testing concepts
• PowerPoint presentations on genetic testing issues
• Illustrated Glossary of >220 terms
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FAP
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SummaryDiagnosisClinical DescriptionDifferential DiagnosisManagementGenetic CounselingMolecular GeneticsResourcesReferences
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Test Method Mutation Detection Rate Test Availability
Sequence analysis ~95%
Mutation scanning and protein truncation ~80-90% Clinicaltesting (PTT)
Protein truncation ~80%Testing (PTT)
Molecular Genetic Testing
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FAP
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Sequencing ofentire coding region
Mutationscanning
Proteintruncation
testing
Prenataldiagnosis
Clinical confirmation of mutations identified in a
research lab
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FAP
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Genetics in Specialty CareGenetics in Specialty Care
: Feature Search*
*Clinical laboratories
Deafness (122)
Craniofacial (184)
Connective Tissue (34)
Cancer (82)
Skeletal Bone (216)
Blood (97)
Behavior Disorder (15)
Dental (32)
Ear (11)
Endocrine (91)
Heart (162)
Genitourinary (99)
Gastrointestinal (90)
Eye (259)
Limb Malformation (76)
Renal (86)
Immune (36)
Growth (119)
Vascular (40)
Skin (210)
Neurologic (All) (907)
Mitochondrial (16)
Metabolic (225)
Pulmonary (49)
Liver (62)
Premature Aging (5)
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Ataxia (75)Dementia (33)Lethargy/Coma (28)Mental Illness (26)Mental Retardation (212)
Motor Neuron (11)Movement Disorder (68)Myopathy (91)Neuropathy (49)Seizures (127)
Neurologic (907)
Spasticity (143)Autonomic Dysfunction (5)Brain Tumor (9)Headache (9)Hyptonia (75)Stroke (7)Structural Brain Malformation (39)
Genetics in Specialty CareGenetics in Specialty Care
: Feature Search*
*Clinical laboratories
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• Introduction to
• Availability of Genetic Testing
• Future Directions
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: Number of Tests and Laboratories
Data source: GeneTests database (2004) / www.genetests.org
0
100
200
300
400
500
600
700
800
1993 1994 1995 1996 1997 1998 1999 2000
900
2001 20032002
1000
2004
Laboratories
Tests
1100
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• Most laboratories only test for a few diseases.
• For many diseases only one laboratory provides testing.
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Number of Diseases Tested
Number of Clinical Laboratories by Number of DiseasesNumber of
Clinical Laboratories
0
10
20
30
40
50
60
70
80
90
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 >30
2001• 290 Laboratories• 454 Diseases
2005• 577 Laboratories• 785 Diseases
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: Research Testing Only
# of Diseases # of Laboratories
233 1
68 2
19 3
2005
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: Clinical and Research Laboratories
U.S. and Canada: Emphasis on inclusivenessOther International: Emphasis on rare diseases
2001(N = 498)
2005(N = 577)
377 (76%) U.S.
33 (7%)Canada
85 (17%)Other International
390 (68%) U.S.
145 (25%)Other International
42 (7.3%)Canada
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22 Germany
19 United Kingdom
11 Netherlands
9 Italy
7 France, Spain
6 Belgium, Japan, Switzerland
5 Israel, Australia
4 Argentina, Czech Republic, New Zealand
3 Turkey
2 Chile, Cyprus, Denmark, Finland, Norway, Portgual, Sweden
1 Austria, Brazil, Greece, India, Korea, Malta, Poland, Russia, Saudi Arabia, Scotland, Singapore, South Africa, Taiwan ROC
*Excludes Canada 2005
: International Laboratories (N=145)*
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• Introduction to
• Availability of Genetic Testing
• Future Directions
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: Future Directions: Future Directions
Seamless network of international databases
• Shared disease naming system
• Shared terminology for genetic testing methods
• Shared data model
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: Disease Naming System: Disease Naming System
• Parent-child hierarchy
∘ Parent can be the name related to an altered
gene or a phenotype
∘ Children can be the name related to an altered gene or a phenotype, but all must be the same
• Clinical testing links to a name related to an altered gene
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Familial Adenomatous Polyposis Attenuated FAP Gardner Syndrome Turcot Syndrome
Altered gene:
Phenotypes
: Disease Naming System: Disease Naming System
Phenotype:Altered gene:Altered gene:
Jervell and Lange-Nielsen Syndrome LQT1 LQT5
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mutation scanningmutation scanning
SharedSharedterminologyterminologyfor genetic for genetic testing methodstesting methods
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: Shared data model
Next steps?
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Roberta A Pagon, MD
Patricia K Baskin, MS
Thomas D Bird, MD Cynthia Dolan, MS Gerald Feldman, MD, PhDRichard JH Smith, MD, PhD
Suzanne Cassidy, MD
Kathi Marymee, MS
Cynthia Abair, MA
Monica Smersh
Carla GiffordMalissa Robertson
Editor-in-Chief
Executive Managing Editor
Associate Editors
Assistant Editor
Resources Liaison
Graphics Editor
Update Coordinator
Editorial Assistants
Genetic Counselors
Directory Support
Cynthia R Dolan, MSShannon DeVange, MS
Gina McCullough Grohs
Programmer
Systems Administration
Web InformationSpecialist
Sergey Mikhaylov, MS
Brad Willson
Miriam Espeseth, MA
Staff
GeneReviews
Principal Investigator Roberta A Pagon, MD
Directories
Informatics
2005