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Vanderbilt’s DNA Databank:

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Presentation on theme: "Vanderbilt’s DNA Databank:"— Presentation transcript:

1 Vanderbilt’s DNA Databank:
BioVU

2 Personalized Medicine
Integration of genomic information into clinical decision making Personalized disease treatment and also preventative therapies

3 Personalized Medicine
A SNP is a single base-pair mutation that occurs at a specific site in the DNA sequence - occurs in at least 1% of the population SNPs are responsible for over 80% of the variation between two individuals; they are ideal for establishing correlations between genotype and phenotype As some SNPs predispose individuals to have a certain disease or trait or react to a drug in a different way, they will be highly useful in diagnostics and drug development

4 What is BioVU? The move towards personalized medicine requires very large sample sets for discovery and validation BioVU: biobank intended to support a broad view of biology and enable personalized medicine Contains de-identified DNA extracted from leftover blood after clinically-indicated testing of Vanderbilt patients who have not opted out Linked to Synthetic Derivative: de-identified EMR Current sample number: 116,551 105,910 adult samples 10,641 pediatric samples

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6 The “synthetic derivative”
Extract DNA John Doe A7CCF99DE65732…. eligible A7CCF99DE5732…. One way hash A7CCF99DE65732…. scrubbed John Doe The “synthetic derivative” (SD): can be updated

7 Synthetic Derivative vs. BioVU
A7CDE6532 …. scrubbed A7CDE6532 …. scrubbed A7CDE6532…. + Synthetic Derivative BioVU ~1.9 million ~116,000

8 The Synthetic Derivative
A Derivative of the EMR - information content reduced by ‘scrubbing’ identifiers Systematically shifted event dates Contains ~1.9 million records ~1 million with detailed longitudinal data averaging 100,000 bytes in size an average of 27 codes per record Records updated over time and are current through 9/31/09 Can be searched restricting to records for which DNA is available

9 Synthetic Derivative Data Types
Narratives, such as: Clinical Notes Discharge Summaries History and Physicals Problem Lists Surgical Reports Progress Notes Letters Diagnostic Codes, Procedural Codes Forms (intake, assessment) Reports (pathology, ECGs, echocardiograms) Clinical Communications Lab Values and Vital Signs Medication Orders TraceMaster (ECGs)

10 BioVU Program Review

11 Sample accrual

12 BioVU Sample Management
Samples are stored in a robotic sample storage system that allows for fully automated high speed sample picking. Currently genotyping on BioVU samples is being done in the DNA Resources Core here at Vanderbilt. RTS SmaRTStore

13 Validation in BioVU Sample handling algorithms Ancestry
Gender match 1/384 gender mismatches Ancestry Characterize sample ancestry, assess usefulness of ‘race’ as defined in EMR Provide a panel of ancestry informative markers that define ancestry No significant difference between the concordance of self-report or observer-report with genetic ancestry Demonstration project – American Journal of Human Genetics Can known associations between genetic variants and common diseases be identified in the EMR?

14 The “demonstration project”
Genotype “high-value” SNPs in the first 8,000 samples accrued. including SNPs associated by replicated genome-wide experiments with common diseases & traits Atrial fibrillation Crohn’s disease Multiple Sclerosis Rheumatoid arthritis Type II Diabetes Develop Natural Language Processing methods to identify cases and controls Are genotype-phenotype relations replicated?

15 First results 0.5 1.0 2.0 5.0 Odds Ratio gene / disease marker region
Chr. 4q25 Atrial fibrillation rs Chr. 4q25 rs IL23R rs Chr. 5 Crohn's disease rs Chr. 5 rs NOD2 rs PTPN22 rs DRB1*1501 Multiple sclerosis rs IL2RA rs IL7RA rs Chr. 6 Rheumatoid arthritis rs RSBN1 rs PTPN22 rs TCF7L2 rs TCF7L2 rs TCF7L2 rs CDKN2B Type 2 diabetes rs FTO rs5219 KCNJ11 rs5215 KCNJ11 rs IGF2BP2 0.5 1.0 2.0 5.0 Odds Ratio

16 First results 0.5 1.0 2.0 5.0 Odds Ratio gene / disease marker region
Chr. 4q25 Atrial fibrillation rs Chr. 4q25 rs IL23R rs Chr. 5 Crohn's disease rs Chr. 5 rs NOD2 rs PTPN22 rs DRB1*1501 Multiple sclerosis rs IL2RA rs IL7RA rs Chr. 6 Rheumatoid arthritis rs RSBN1 rs PTPN22 rs TCF7L2 rs TCF7L2 rs TCF7L2 rs CDKN2B Type 2 diabetes rs FTO rs5219 KCNJ11 rs5215 KCNJ11 rs IGF2BP2 0.5 1.0 2.0 5.0 Odds Ratio

17 Types of projects Discovery or validation of genotype-phenotype relations for disease susceptibility or drug responses Discovery of new disease/susceptibility genes  resequence in patients (obesity, Cushing's, susceptibility to infection, insomnia, pre-term birth) Access samples without disease X, or “normals” of specified ancestry, or old normals Phenome-wide association study (PheWAS): in development

18 Research Use Cases Retrospective chart reviews Rapid preliminary
data for grant submissions Feasibility assessment Hypothesis generation

19 Examples of ICD-9 codes for rare diseases Example Rare Disease
Number in SD Number in BioVU Microcephalus 1,070 85 Pica 115 22 Septicemic Plague 21 Pick’s Disease 45 8 Acromegaly and Gigantism 571 123 Ehlers-Danlos Syndrome 285 34 Narcolepsy without Cataplexy 438 76 Spina Bifida 1968 238 Stiff-Man Syndrome 82 17 Tourette Syndrome 667 Bell’s Palsy 2534 402 Bulimia Nervosa 919 88 Cushing’s 1443 298 Peyronies Disease 694 157 Wilson’s Disease 140 49 Meningioma 1444 355 Wegener’s 363 141

20 Data use agreement + IRB Approval
Investigator query Data use agreement + IRB Approval cases controls + 20

21 Data use agreement + IRB Approval
Investigator query Data use agreement + IRB Approval Manual Review cases controls + 21

22 Data use agreement + IRB Approval
cases controls + Investigator query Data use agreement + IRB Approval Sample retrieval cases controls + 22

23 + + cases Investigator query controls Sample retrieval cases controls
Genotyping, genotype-phenotype relations Investigator query Data use agreement + IRB Approval Sample retrieval cases controls + 23

24 Data Use Agreement

25 Genotyping Data Accrual

26 Coronary Artery Disease
Nationally Prevalent Diseases in the African American Population Disease BioVU Count Hypertension 1095 Type 2 Diabetes 714 Coronary Artery Disease 273 Kidney Disease 252 Asthma 210 Pneumonia 193 Stroke 133 Lupus 48 Lung cancer 21 Genotype data on 1786 AA subjects

27 BioVU Home page. Description of resource
BioVU Home page. Description of resource. On the left, you can click for application instructions, status of your application, information about support for BioVU projects, and Record Counter to determine approximate number of records that meet specific criteria (useful for sample size estimations and power calculations when developing BioVU projects/proposals). Tools for assistance with grant language and also statistical analysis plan for BioVU proposals. Click “Genotyping Data” button for more information about current sample counts and genotyping data (page that comes up is on next slide).

28 BioVU Home page. Description of resource
BioVU Home page. Description of resource. On the left, you can click for application instructions, status of your application, information about support for BioVU projects, and Record Counter to determine approximate number of records that meet specific criteria (useful for sample size estimations and power calculations when developing BioVU projects/proposals). Tools for assistance with grant language and also statistical analysis plan for BioVU proposals. Click “Genotyping Data” button for more information about current sample counts and genotyping data (page that comes up is on next slide).

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32 Record Counter is on the BioVU homepage.

33 This is the screen when you log into Record Counter.

34 You can query by ICD-9 code, for example MS.

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36 You can also query for medications as shown here.

37 It will instruct you to enter the medication as shown here with avonex as an example.

38 You can search for multiple medications as well.

39 For example, if you want to query the records for MS cases with interferon treatment, you can add the medications to the same Criteria Group as shown here for 3 different interferon medications. This results in a query for MS cases with either avonex, betaseron, OR rebif. This will pull MS records with an occurrence of any of the 3 medications. If you wanted to query for MS cases on all 3 medications, you would need to add each medication to a SEPARATE Criteria Group. This is just using “and” / “or” logic. If you want to query only cases with DNA samples in BioVU, you have to click “Limit by DNA availability”. When you have all your criteria entered, click “Execute Query”.

40 This will give you a readout of total number of cases in BioVU that meet your criteria with demographic breakdown.

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42 This will give you a readout of total number of cases in BioVU that meet your criteria with demographic breakdown.

43 BioVU Home page. Description of resource
BioVU Home page. Description of resource. On the left, you can click for application instructions, status of your application, information about support for BioVU projects, and Record Counter to determine approximate number of records that meet specific criteria (useful for sample size estimations and power calculations when developing BioVU projects/proposals). Tools for assistance with grant language and also statistical analysis plan for BioVU proposals. Click “Genotyping Data” button for more information about current sample counts and genotyping data (page that comes up is on next slide).

44 This will give you a readout of total number of cases in BioVU that meet your criteria with demographic breakdown.

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47 When you click on “Application Instructions”, an explanation of the 5 different application options will appear. This depends on whether investigator will be requesting genotyping or not and also whether the investigator intends to apply for VICTR funding to support their BioVU project. The first option is just for SD users (the process will now be electronic).

48 An example of the web-based application process (this particular example is for an investigator who wants to request genotyping as well as apply for VICTR funding). Investigators will need IRB approval for their project, a 5 page research proposal, and a biosketch. They will also need to sign a Data Use Agreement. Once all of these are completed, they will complete the electronic application (in REDCap) where they will download all of their documents and complete application information. The link to VICTR resource request is also there (this process will not change – they will apply for VICTR funding as usual, however their application will not be processed until Shraddha receives the go ahead that the BioVU proposal has been approved).

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52 For assistance with BioVU project development or application submission, there are office hours, information clinics, and studios. Investigators may also apply for VICTR funding.

53 BioVU Application Process
Investigator(s) completes VICTR Resource Request Funding request reviewed by VICTR SRC BioVU Application Process Proposal reviewed by BioVU Review Committee BioVU program office contacts investigators with any necessary revisions if applicable Proposal Approved/ Access granted Investigator resubmits proposal if necessary Total Time: Data Requests: 4-6 weeks DNA Access: 8-12 weeks Funding Decision Proposal Review Process:

54 BioVU Genotyping Process
Genotyped data analyzed by investigator Investigator selects cases and controls from Synthetic Derivative Investigator signals BioVU program to initiate sample selection BioVU notifies DNA resources core that samples are ready for selection and picking Samples are provided to appropriate lab and are genotyped Investigator and BioVU program receive genotype data BioVU Genotyping Process:

55 BioVU Requests 37 Total Requests 24 Approvals

56 FAQ “answers” SD access: “non-human subjects” IRB review (days)
Current access costs: $4/sample Genotyping: Investigator-funded Consider VICTR as a funding source Genotyping/sequencing performed in VUMC Core Facilities Justification must be provided for outside genotyping, including quality control plans Genotype “redeposit” part of the data use agreement Anticipate 16,000 BioVU subjects will have GWAS-type genotyping data by fall 2011

57 Contact: Erica Bowton PhD
Questions? Contact: Erica Bowton PhD BioVU Program Manager


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