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To advance excellence in the management of clinical data A PUBLICATION SUPPORTED BY AND FOR THE MEMBERS OF THE SOCIETY FOR CLINICAL DATA MANAGEMENT, INC. The Annual Conference was widely ap- preciated, featuring more than 50 speakers from across the globe. Special thanks to all of our sponsors and the 575 attendees who supported this event. Conference co-chairs Paul Clarkson and Charlene Dark, as well as the support team at EDI, attended to ev- ery detail to ensure a successful conference. This year, we welcome three new members to the Board of Trustees: Jonathan Andrus, Jennifer Duggan and Meredith Nahm. They bring a diverse mix of expertise from software solutions, the device industry and academics. Departing the Board are LindaTalley, Vesna Zovkic and Debra Jendrasek. Thank you all for your service. We shall miss you! This is expected to be a year of significant change for SCDM, with new globalization initiatives, partnerships and measures to di- versify and examine the bigger picture so as to encompass the entire data value chain in the drug discovery and development process. Vice Chair Susan Howard, Secretary Carol Garvey, and Treasurer Gregg Dearhammer, all stal- warts in this industry, bring immense leader- ship to the Executive Committee, as does our executive director, Eloiza Altoro-Acevedo. I am deeply honored and humbled to serve as the first international chair of SCDM, and would like to take this opportunity to sincere- ly thank the entire membership and the Board for the confidence they have placed in me. Five years in, my involvement with SCDM has been a rewarding experience. I have truly enjoyed every minute of it. SCDM is a profes- sional and committed organization comprised of thoughtful, warm and capable people. This Issue 1 Letter from the Chair 2 Letter from the Editors 3 Pharmacogenomics Overview and Impact on Data Management in Clinical Research 6 Pharmacogenomics and Metabolomics 9 Trends in Clinical Data Management Due to Growing Dissatisfaction with EDCs 12 Ethical Issues in Pharmacogenetics Volume 16, Number 4 | 2010 Winter Letter from the Chair Nimita Limaye, PhD, CCDM Dear Members, Welcome to a bright and successful New Year! We have just closed 2010 on a successful note under the able leadership of 2010 Board Chair Ralph Russo. I greatly enjoyed working with Ralph this past year. His foresight, ma- ture leadership and deep commitment added considerable value to SCDM. Thank you Ralph, on behalf of the entire organization! Close to 700 new members joined the SCDM family in 2010. As part of the newly-launched student membership initiative, we also intro- duced nearly 150 new student members to our organization. In spite of the current glob- al recession, SCDM has more than 2,600 members today! It is also notable that nearly one-fifth of our membership is international. Other 2010 highlights: We ended the year with 580 CCDMs. One- fourth of these are international, with the majority from India, Canada and South Af- rica. This reflects the growing recognition of the value of CCDM® certification globally. We established collaborative educational partnerships with the U.S. Food and Drug Administration, Duke Clinical Research In- stitute, AHIMA, ACRP, CDISC and others. We collaborated with the Center for Phar- maceutical Publishing in Tokyo to release a Japanese translation of the GCDMP, our industry best practices. The focus on the changing role of the data manager and global outsourcing trends were demonstrated by new chapters in the GCD- MP on Project Management for the CDM, and on Vendor Selection and Management. In line with this, a webinar and pre-confer- ence tutorial on “Outsourcing Strategy and Methodology” were conducted as well. Continued on page 3
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Page 1: Society for Clinical Data Management (SCDM) - …4 Data Basics • winter 2010 Return to CoverPharmacogenomics Overview and Impact on Data Management in Clinical Research continued

To advance excellencein the management

of clinical data

A publicAtion supported by And for the MeMbers of the society for clinicAl dAtA MAnAgeMent, inc.

• TheAnnualConferencewaswidelyap-preciated,featuringmorethan50speakersfromacrosstheglobe.Specialthankstoallofoursponsorsandthe575attendeeswhosupportedthisevent.Conferenceco-chairsPaulClarksonandCharleneDark,aswellasthesupportteamatEDI,attendedtoev-erydetailtoensureasuccessfulconference.

Thisyear,wewelcomethreenewmemberstotheBoardofTrustees:JonathanAndrus,JenniferDugganandMeredithNahm.Theybringadiversemixofexpertisefromsoftwaresolutions,thedeviceindustryandacademics.DepartingtheBoardareLindaTalley,VesnaZovkicandDebraJendrasek.Thankyouallforyourservice.Weshallmissyou!

ThisisexpectedtobeayearofsignificantchangeforSCDM,withnewglobalizationinitiatives,partnershipsandmeasurestodi-versifyandexaminethebiggerpicturesoastoencompasstheentiredatavaluechaininthedrugdiscoveryanddevelopmentprocess.ViceChairSusanHoward,SecretaryCarolGarvey,andTreasurerGreggDearhammer,allstal-wartsinthisindustry,bringimmenseleader-shiptotheExecutiveCommittee,asdoesourexecutivedirector,EloizaAltoro-Acevedo.

IamdeeplyhonoredandhumbledtoserveasthefirstinternationalchairofSCDM,andwouldliketotakethisopportunitytosincere-lythanktheentiremembershipandtheBoardfortheconfidencetheyhaveplacedinme.Fiveyearsin,myinvolvementwithSCDMhasbeenarewardingexperience.Ihavetrulyenjoyedeveryminuteofit.SCDMisaprofes-sionalandcommittedorganizationcomprisedofthoughtful,warmandcapablepeople.

This Issue1Letter from the Chair

2Letter from the Editors

3Pharmacogenomics Overview and Impact on Data Management in Clinical Research

6Pharmacogenomics and Metabolomics

9Trends in Clinical Data Management Due to Growing Dissatisfaction with EDCs

12Ethical Issues in Pharmacogenetics

Volume 16, number 4 | 2010 Winter

Letter from the ChairNimita Limaye, PhD, CCDM

DearMembers,

WelcometoabrightandsuccessfulNewYear!We

havejustclosed2010onasuccessfulnoteundertheableleadershipof2010BoardChairRalphRusso.IgreatlyenjoyedworkingwithRalphthispastyear.Hisforesight,ma-tureleadershipanddeepcommitmentaddedconsiderablevaluetoSCDM.ThankyouRalph,onbehalfoftheentireorganization!

Closeto700newmembersjoinedtheSCDMfamilyin2010.Aspartofthenewly-launchedstudentmembershipinitiative,wealsointro-ducednearly150newstudentmemberstoourorganization.Inspiteofthecurrentglob-alrecession,SCDMhasmorethan2,600memberstoday!Itisalsonotablethatnearlyone-fifthofourmembershipisinternational.

Other2010highlights:• Weendedtheyearwith580CCDMs.One-

fourthoftheseareinternational,withthemajorityfromIndia,CanadaandSouthAf-rica.ThisreflectsthegrowingrecognitionofthevalueofCCDM®certificationglobally.

• WeestablishedcollaborativeeducationalpartnershipswiththeU.S.FoodandDrugAdministration,DukeClinicalResearchIn-stitute,AHIMA,ACRP,CDISCandothers.

• WecollaboratedwiththeCenterforPhar-maceuticalPublishinginTokyotoreleaseaJapanesetranslationoftheGCDMP,ourindustrybestpractices.

• ThefocusonthechangingroleofthedatamanagerandglobaloutsourcingtrendsweredemonstratedbynewchaptersintheGCD-MPonProjectManagementfortheCDM,andonVendorSelectionandManagement.Inlinewiththis,awebinarandpre-confer-encetutorialon“OutsourcingStrategyandMethodology”wereconductedaswell. Continued on page 3

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2011 SCDM CommitteesEducation & Professional Development Michelle Meany, CCDMPat Stetser, CCDM

Marketing & Communications Nelson Lee, CCDMJim Dorsey

Products & Services Jennifer Duggan, CCDMSusan Krikorian, CCDM

Strategic Directions Jonathan Andrus, CCDM

Letter from the Editors

Directory of Advertisers11 Medidata

16 Cincinnati Childrens Hospital

DearSCDMMembers,

WelcometotheWinter2010IssueofDataBasics!

Justastechnologyhascontinuallyadvancedtogiveussmartphones,high-techgamingcon-solesandhybridcars,therehaslongbeenaneedforintroducingmedicationswithhighspecificity.Thisisevenmoreimportantdueto theideathatdrugswithhigherspecificitycanpotentiallyleadtolowerhealthcostsandfeweradverseeventsifitcanbereliablydeterminedwhowilloptimallybenefitfromacertainmedication.

Theconceptofsmartmedicinesispropelledbythedisciplineofpharmacogenomics,whichcanhelpbiotechandpharmaceuticalcompa-niesdevelopdrugsforspecificsubpopulations.Theuseofmetabolomicsfurtherservesthispurposebyhelpingresearchersfindnewmark-ersfordisease.Whilebothpharmacogenomicsandmetabolomicsmaynotseemlikecommontopicsamongclinicaldatamanagersandinthemainstreamofclinicaltrials,theyarekeydisci-

2011 Online Course OfferingsOnline Course Dates

CRFDesign Jan.10–Feb.4

DevelopingDataManagementPlans Feb.7–Mar.11

QueryProcessingandTracking/DatabaseUpdates Mar.14–Apr.8

MetricsandIdentifyingDataTrends Apr.11–May6

ProcessingLabData May9–Jun.3

SAEReconciliation,SafetyReviewandCoding Jun.6–Jul.1

DatabaseLockandRandomization Sep.19–Oct.14

ProjectManagementfortheDataManager Oct.17–Nov.11

2011 Webinar ScheduleWebinar 11:00amCentral;60-minutepresentation(30-minuteQ&A) Dates

What’sNewwithePROSystems:FDAUpdatesandRegulations Feb.17

AdaptiveTrialDesign–WhatItMeansfortheCDM Mar.17

UsingtheCDISCStandardsEnd-to-EndinClinicalTrials Apr.14

DeviceTrialStrategiesandtheCDM’sRoleinQualityAssurance May19

21CFRPart11fortheClinicalDataManager Jun.23

Biostatistics–WhatEveryClinicalDataManagerShouldKnow Sep.22&29

DataIntegrationandtheGCDMP:ANewChapterinClinicalDataManagement Oct.20

TheRoleofMetricsinClinicalDataManagement:TrackingQualityandEfficiency Nov.17

2011 SCDM E-Learning Register at http://portal.scdm.org

plineswhichprovidevalueandtimesavingsfortheoveralldrugdevelopmentprocess.

AlthoughthisissueisleanerwhencomparedtopastissuesofData Basics,wethinkyou’llfindthearticlesinterestingandtheissuewillpro-videyouwiththebackgroundforthesedisciplines.

Aswemoveinto2011,wewouldliketoen-courageourreaderstocontributenewarticles.PleasechecktheSCDMwebsiteforouredito-rialcalendar.

PleasebesuretoalsocheckouttheSCDMwebinarsandonlinecoursesscheduledthroughoutthisyear.Afullschedulehasbeenprintedbelow.Thereareawidevarietyoftopicswithsomeofthelatesttrendsinourindustry.

HappyNewYear!

Sincerely,RehanaBluntandLyndaHunterData BasicsCo-Editors

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2010 SCDMBoard of TrusteesRalph J. Russo, CCDMChairMerck

Nimita Limaye, CCDMVice ChairSIROClinpharmPvt.Ltd.

Susan HowardSecretaryGlaxoSmithKline Pharmaceuticals

Gregg DearhammerTreasureri3Statprobe

John Estrada, CCDMPGEVentures,Inc.

Carol D. Garvey, CCDMGenentech,Inc.

Debra JendrasekChilternInternational

Linda S. KingEliLillyandCompany

Steven PowellPRAInternational

Vesna E. Zovkic, CCDM

Linda Talley, CCDMPast ChairEliLillyandCompany

Continued on page 4

Pharmacogenomics Overview and Impact on Data Management in Clinical Researchby Margarita Strand, Lead Clinical Data Manager, Oncology at Novartis.

AbstractThisarticleprovidesabriefoverviewofselectedlitera-tureonPharmacogenomics(PGx)asabranchofphar-macology,anddescribesmethodsofstudyingthe

geneticbasisofpatients’responsevariabilitytoinvestigationalcompoundsinclinicalresearchwithafocusonthedatamanagementaspectsofclinicaltrialsinvolvingpharmacogenomicsdata.

Pharmacogenomics DefinitionPharmacogenomics(PGx)isthebranchofpharmacologywhichdealswiththeinfluenceofgeneticvariationondrugresponseinpatientsbycorrelatinggeneexpressionorsingle-nucleotidepolymorphisms(SNPs)withadrug’sefficacyortoxicity.1Singlenucleotidepolymorphisms,orSNPs(pronounced“snips”),areDeoxyribonu-cleicAcid(DNA)sequencevariationsthatoccurwhenasinglenucleotide(A,T,C,orG)inthegenomesequenceisaltered.5

Althoughpharmacogenomicsisbroaderinscopeandreferstothecomplexinteractionsofgenesacrossgenome,theterms‘pharmacoge-nomics’and‘pharmacogenetics’areoftenusedinterchangeablyintheliterature.2

History of Pharmacogenomics and Current StatusRapididentificationoftensofthousandsofhumangenesandhundredsofthousandsofDNAvariationsthatmightinfluencediseasesusceptibilityhasspawnedanewfield—phar-macogenomics.3Pharmacogenomicsisanoffspringofpharmacogenetics.Thehistoryofpharmacogeneticsdatesbacktothe1900s.4

Overthepastfewdecades,duetosuchmajoraccomplishmentsasthecompletionoftheHumanGenomeProject6in2003,whichhasprovidedablueprintoftheDNApresentineachhumancell,rapidprogresshasbeenmadebyusinggeneticstoidentifythemolecularcauseofhumandisease.GenomicsresearchisnowfocusingonthestudyofDNAvariationsthatoccurbetweenindividuals,seekingtounder-standhowthesevariationsinfersusceptibilitytocommondiseasessuchasdiabetesorcancer.7

Application of PGx in Clinical ResearchThetwomajorgoalsforclinicalapplicationofPGxare:• Abilitytopredictpatientswhoareathigh

riskoftoxicityinanefforttopreventseriousadverseevents(SAEs)andensuresafety

• Abilitytopredictpatientswhoaremostlikelytoobtainthedesiredtherapeuticeffectfromthedruginanefforttoincreaseefficacy8

Bothofthesedefinepossibilitiesforincorporat-inggenotypingintoeachphaseofaclinicaltrial.

WithrecentadvancementsinthefieldofPGx,geneticfactorcannowbeconsideredanintrin-sicorpredictablefactoraffectingdrugresponseandcanbeaddedtotheotherintrinsicfactorsincludingage,gender,race/ethnicity,diseasestate,organdysfunction,etc.8

230clinicaltrialsinvolvingpharmacogenomictestinghavebeenregisteredwithClinicalTrials.govwebsite9asofOctober1,2010demon-stratingwidespreaduseofpharmacogenomicsinclinicalresearch.

PGx in Oncology ResearchTumorbiopsyallowsfordirectanalysisofabnormaltissue,whichexplainswhyPGx

Iknowthatthisisjustthebeginning,andIshallseekyourcontinuedsupporttohelpdrivethestrategicvisionthatwehavesettomakethisatrulyglobalorganizationofconsiderablerepute.

Onceagain,wishingyouallasparklingandsuccessfulNewYear,

NimitaLimaye,PhD,CCDM2011ChairSCDMBoardofTrustees

Letter from the Chaircontinued from cover

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Pharmacogenomics Overview and Impact on Data Management in Clinical Researchcontinued from page 3

analysisofefficacyincancerresearchiswellaheadofothercomplexdiseasesthatmustsolelyrelyongeneticassociationstudies.11Forexample,patientswithmetastaticcolorectalcancer(mCRC)whosetumorscarrywild-typeversionofKRASgenerespondtoPanitumumab(Vectibix)betterthanpatientswhosetumorscarryamutatedformofKRAS.

Acommercialtest–TheraScreen’sK-RASMutationtest–wasapprovedinEuropetodetectsevenmutationsfoundinmanycancertypesandisnowusedtopredictVectibixefficacy.11Patientswithnon-small-celllungcancer(NSCLC)respondfavor-ablytoGefitinib(Iressa®)—iftheyhaveparticularmutationsinthetyrosinekinasedomainoftheepidermalgrowthfactorreceptorgene(EGFR)oftheirtumor.Thefindingssuggestthereisnoneedtotrythisanti-cancerdruginpatientsnothavingthistumorEGFRgenotype.14

Stratification of Research SubjectsFigure1illustratesthecurrentstateofthedrugdevelopmentprocesswhereonlyalimitednumberofpatientsaretreatedwithaspecificdrugforanygivendiseaseduetoadverseevents.Ofthosepatientswhoarereceivingthedrug,notallrespond.10

Thefutureofdrugdevelopmentisbasedongenotype-inducedsubjectstratifica-tionandispresentedinFigure2whereeachsub-groupisrepresentedashavingadrugavailablethatistailoredtotheirgenotypewiththebenefitofreducedadverseevents.10

Regulatory PerspectiveWithactivesupportfromregulatoryagencies,PGxisalsobecominganimpor-tantaspectofdruglabelingsothatgroupsofpatientswhoaremostlikelytore-spond,andlesslikelytosufferadverseevents,canbeidentifiedinpractice.11

Increasinginterestfromregulatoryau-thoritiesonpotentialapplicationsofPGxhasraisedtheawarenessoftheuseofPGxdatainthedrugdiscoveryanddevelop-

ment.TheFoodandDrugAdministra-tion(FDA)haspublished‘GuidanceforIndustryPharmacogenomicDataSub-missions’.Itwasgeneratedspecifically‘tofacilitatescientificprogressinthefieldofPGxandtheuseofPGxdataindrugdevelopment’.12NotonlydoesitprovideguidanceonPGxdatasubmissionre-quirements,butalsoencouragesvolun-tarysubmissionofdatafordiscussionwiththeagency’snewlyformedInterdis-ciplinaryPharmacogenomicsReviewGroup(IPRG).12

ICHhasalsoissuedGuidanceforIndus-tryE15:‘DefinitionsforGenomicBio-markers,Pharmacogenomics,Pharmaco-genetics,GenomicDataandSampleCodingCategories’.

Figure 1. Current state of drug development process10

Figure 2. Future state of drug development based on genotype-induced subject stratification10

ThewillingnessofregulatoryagenciesandpharmaceuticalcompaniestoadoptacollaborativeapproachtoPGxwillbeakeyfactorinmovingPGxforward,aswellastheagency’sapprovalofvalidatedpharmacogenomictests.12

Data Management Aspects of Clinical Trials with PGx DataSeveralaspectsofaclinicaltrialinvolvingPGxdatashouldbeconsideredfromtheClinicalDataManagementperspectiveduringstudystart-upphase(Table1)andevaluatedthroughoutthecourseofthestudywiththeimplementationofqualityassuranceandqualitycontrolmeasurestoensurehighqualitydata.

Continued on page 5

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# Aspect Clinical Data Consideration from Data Manager’s (DM) Perspective1 StudyProtocol DataManagershouldthoroughlyreviewsectionsintheProtocolrelatedtoPGx,ensureunderstandingofthesample

collectionmethodologyforPGxstudiesandanalysis,evaluateimpactontheCaseReportFormandclinicaldatabasedesign(seealsoCRFsectionbelow).

2 DataManagementPlan(DMP)

DataManagershouldincorporategenetictestingcomponentandgeneticdatahandlingintotheDMPaswellasdefinetheflowofthegeneticdataanditsintegrationintotheoveralldatamanagementprocess.

3 CaseReportForm(CRF) StudyspecificCRFpagescollectinggenetictestingdataneedtobedesigned.Theuseofthedataforstatisticalanalysispurposesneedstobeevaluated,discussedwiththetrialstatisticianandalignedwiththeStatisticalAnalysisPlan(SAP).

4 Subject’sEligibilityCriteria Inclusionandexclusioncriterianeedtobecarefullyevaluatedtoaccountforthesubject’sgenotype.Receiptofresultsofmutational/geneticanalysisfromtheanalyticallaboratorypriortoBaselinevisitbecomesessentialforevaluationofeligibilitycriteria.Potentialimpactonthespeedofsubject’srecruitmentneedstobeevaluatedanddiscussedwiththeClinicalteam.

5 ClinicalDatabaseDesign Variablenames,formats,codelistsanddatasetstructureassociatedwithgeneticdataneedtobedefined.AppropriateannotationsneedtobecreatedbytheprogrammerintheAnnotatedCRFanddatabasedesignspecifications.

6 DataValidationChecks Editchecksintendedtodetectpotentialerrorsanddiscrepanciesingeneticdataneedtobedeveloped,programmed,testedandimplemented.

7 RandomizationMechanism

Dependinguponthesystemusedtorandomizethesubjectsintothestudy(e.g.InteractiveVoiceResponseSystem(IVRS),InteractiveWebResponseSystem(IWRS),etc.)randomizationscriptsneedtobewritten,programmed,thoroughlyreviewedandtestedtoensurethat,forexample,subjectwithgenotypeAisassignedtotreatmentarmA,andsubjectwithgenotypeBisassignedtotreatmentarmB(asdefinedintheStudyProtocol).

Availabilityofmutational/geneticanalysisresultsfromtheanalyticallabpriortotheBaselinevisitbecomesessentialforsubjects’stratificationandassignmenttotheappropriatetreatmentarm.

8 ExternalDataHandling(non-CRF)

Datatransferspecifications(DTS),frequency,timingandmethodofgenotypedatatransferfromtheexternalvendor(analyticallab)needtobedefinedandagreedupon.TestdatatransfershouldbecheckedforcompliancewithdatabasestructuredefinedintheDTS.

9 DataReviewandCleaning MethodandextentofPGxdatareview,cleaningandreconciliationaswellasquerymanagementshouldbedefinedintheDMP.Datalistings/reportsnecessarytoreviewthePGxdatafromtheDMperspectiveaswellaslayoutofthePatientProfiles/reportsusedbyClinicalandSafetyteamstoreviewthesafetyandefficacydataincorrelationwiththesubjectgenotypevariationsneedtobedefinedandprogrammed.

10 AdverseEvents/SAEs Correlationbetweensafetysignalsandgenotypeshouldbeevaluated(particularlyforSAEs)duringsafetymonitoringandAEclassification.

11 ClinicalDatabaseLock DataManagerneedstoincorporateitemsrelatedtoPGxdataintotheclinicaldatabaselockchecklistandensurethechecklistisfollowed.

12 Training Forin-housetrials,theinternalstudyteampersonnelaretrainedontheprocessofcollectingandhandlingPGxdata.

ForoutsourcedtrialswhereaContractResearchOrganization(CRO)isinvolved,clearunderstandingoftheroles&responsibilitiesbytheCRO’sDMteamwithrespecttoPGxdatahandlingshouldbeensured.

Table 1 – Data Management Aspects of Clinical Trials with PGx Data

Pharmacogenomics Overview and Impact on Data Management in Clinical Researchcontinued from page 4

Conclusions Pharmacogenomicscanprovidesubstan-tialefficiencyinclinicalresearchbyfacili-tatingtheconductofsmallerclinicaltrialswhiletargetinggroupsofpatientswithsimilargeneticbackground.Theapproachofdeterminingthegenotype/phenotyperelationshipinindividualdrugresponsewillprovidephysiciansandresearcherswiththekeyinformationthatallowsthemtopreciselyprescribeordesigntherightdrug,attherightdose,fortherightpatient.13

Blendingthecomponentsofgeneticsandpharmacology,PGxhascreatedanewparadigminthepharmaceuticalland-scape.15Withawidespreadadoptioninclinicalresearch,PGxhasapotentialtobecomeacorecomponentofconvention-aldrugdevelopmentinthenearfuture.ConsideringtheimportantroleofClini-calDataManagement,DataManagersshouldbepreparedtohandlePGxdatabymeansofacquiringknowledgeaboutthissubject,welcomingopportunitiestolearnandgainexperience,leveraging Continued on page 16

technology,anddevelopingandimple-mentinggoodpharmacogenomicsdatamanagementpractices.

References 1 http://en.wikipedia.org/wiki/Pharmacogenomics2 Clinical Use of Pharmacogenomic Tests in 2009,

Leslie J Sheffield, Hazel E Phillimore, Clinical Biochemistry Review, Vol. 30, May 2009: 55-65

3 The New, New Pharmacogenomics, Malorye Branca, Bio-IT World, September 2002

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Pharmacogenomics and Metabolomicsby Nimita Limaye, PhD, CCDM, VP and Global Head, Strategic Data Services and Medical Writing, SIRO Clinpharm Pvt. Ltd.

Pharmacogenomicsandmetabolomicsaretwoofthekeydriversofthemassive“omics”explosion.Systemsbiologyaimstofacilitateacomprehensiveanalysisoftheinteractionsofcomplexbiologicalsystemsusingkeytoolssuchaspharma-cogenomicsandmetabolomicstodevel-oppredictivemodelsofhumandisease.

Integratedanalysisoforganandsystem-levelresponsesusinginnovativecomputationalanalyticaltechniqueswouldhelpidentifybiomarkersanddesignclinicaltrials,factoringinbothgenotype-phenotypeaswellasgenotype-envirotyperelationships.Theapplicationofhealthinformaticstothedataoverflowresultingfromtheapplicationofsuchtech-nologieswoulddrivefaster,morefocusedandtargeteddrugdiscovery,reducehealthcarecostandpavethewayforper-sonalizedmedicine.

Pharmacogenomicsandmetabolomics,alongwiththeother‘omics,’suchasepigenomicsandneurogenomics,aresomeofthetoolswhicharespearheadingthenewageofpredic-tive,preventiveandpersonalized(PPP)medicine.

Pharmacogenomicsisabranchofpharmacologywhichdealswiththeinfluenceofgeneticvariationsondrugre-sponseinpatientsbycorrelatinggeneexpressionorsingle-nucleotidepolymorphismswithadrug’sefficacyortoxicity.1Thus,itaimstooptimizedrugtherapywithrespecttothepatient’sgenotypetoensuremaximumefficacyandmini-mizeadverseeffects.Itfollowsapolygenicorgenome-wideapproachtoidentifyinggeneticdeterminantsofdrugre-sponse,asopposedtopharmacogeneticswhichexaminessinglegeneinteractionswithdrugs.Itisimportanttore-memberthatwhilethenumberofpolymorphismsingenesencodingdrug-metabolizingenzymes,drugtransportersanddrugtargets,aswellasdisease-modifyinggenesthathavebeenidentifiedcontinuestoincrease,mostdrugeffectsandtreatmentoutcomesaredeterminedbytheinterplayofmultiplegenes,andthisiswherepharmacogenomicscomesintothepicture.

Thesetechnologiesarenotonlybeingusedtotreatcriticalillnesseslikecancer,cardiovasculardisordersanddiseasessuchasHIV,tuberculosis,asthmaanddiabetes.AgoodexampleistheresearchonWarfarin(ananticoagulant)whichhasshownthattwogenesimpacttheoptimaldosingofWarfarin.Thesegeneticfactorsaccountfor30percentto35percentofthevariabilityinthedosing,whileclinicalfactorsareresponsibleforonly17percentto21percent.2

Pharmacogenomicsisalsobeingappliedto‘theranostics’–themergerbetweentherapeuticsanddiagnosticsintheformofaDNAtesttopredictapatient’sresponsetothedrug–andhasbeeneffectivelyusedtoselectpatientsub-populationsforclinicaltrials,forexampleintheK-rastestwithCituximabandEGFRtestwithGefitinib.3Similarly,genesignaturemicroarraystorelatepatternsofgeneexpres-sionwithspecificclinicaloutcomes,suchasthe70-genesignature“Mammaprint”,aU.S.FoodandDrugAdminis-tration-approvedtoolcommercializedbyAgendia,arebeingusedforbreastcancerprognosisandhavebeenreportedtobe77percentto81percentaccurate.4Thisnewsetofmo-leculardiagnostictoolscanbeusedtoindividualizeandoptimizedrugtherapy.

Pharmacogenomicsnotonlyservestoidentifynewtargetsforthedevelopmentanduseofdrugsinspecific,identifi-ablesubpopulations,butalsoplaysasignificantroleinreducingtheincidenceofadverseeventsbyexcludingpa-tientswhoarelikelytosuffersuchevents.Thiswillprob-ablyservetolowerthecostofhealthcareandmakephar-macogenomicsaninvaluabletoolforpredictive,aswellaspreventive,medicine.5

Thiscouldbedonebyidentifyingpolymorphismsthatpredisposepatientstoadversedrugeffects,possiblybyobtaininggenomicDNAfrompatientsenteredonlargePhaseIIIclinicaltrialsofanewagent,andthenretrospec-tivelysearchingforpolymorphismsthatpredisposeasmallsubsettotoxicities.6Thus,predictivemedicinewouldin-volvemappingthefuturehealthhistoryofanindividualandwillmandatethecost-effectiveandswiftsequencingofthehumangenome.Thisisnotmerelylefttoone’simagi-nationasIBMhasannouncedthatitisintheprocessofdevelopingaDNAchipthatcouldbeusedinahandheldmedicaldeviceonwhichpatientscandepositasampletogettheirDNAreadinamatterofsecondsorminutes.7Thiswouldcostbetween$100to$1,000.Thetimeframeofthisprojectisthreeyearsanditintendstomakepersonalizedmedicineaffordableandquick.

Metabolomicsisthe“systematicstudyoftheuniquechemi-calfingerprintsthatspecificcellularprocessesleavebe-hind.”8Itisthestudyofthemetabolome,theentiremeta-boliccontentofacellororganismatagivenmoment.Themetabolomerepresentstheendproductsofgeneexpression.Whiletranscriptomics(mRNAgeneexpressiondata)andproteomics(theuseofaproteomicstoolkittofacilitatebiomarkerprofiling)analysesdonottellusthewholestory

Continued on page 7

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ofwhatmightbehappeninginacell,metabolicprofilingcangiveaninstantaneoussnapshotofthephysiologyofthatcell.Metabolomicsattemptstotabulateandquantifyallthesmallmoleculeswithinasampleandtofindnewmarkersfordiseaseormetabolitepatternsasindicatorsofnutritionalstatus.Ametabolicsignatureobtainedfrombodyfluidsortissueswouldserveasametabolicfootprinttoassessindi-vidualhealthanddiseaserisk,inamannersimilartoDNAfingerprinting.

Metabolomicsisanoffshootofgenomicsandproteomics,asitallowsfortheevaluationofbothgenotype-phenotypeaswellasgenotype-envirotyperelationshipsandisbeingusedinpharmacology,pre-clinicaldrugtrials,toxicology,transplantmonitoring,newbornscreeningandclinicalchemistry.

Thehumangenomehasnowbeenfullysequencedandisfreelyaccessible.Whileapproximately2,900endogenousorcommonmetabolitesaredetectableinthehumanbody,metabolomicsisyettomaturetothatlevel.TheHumanMetabolomeProjectisa$7.5millionGenomeCanadafundedprojectlaunchedinJanuary2005.Itaimstopro-videinsightintodrugmetabolismandtoxicology,providingalinkagebetweenthehumanmetabolomeandthehumangenome.9

Geneticheterogeneitydoesnotconsiderenvironmentalandotherexternalcontributionstoindividual’sbiologicalcondi-tion;however,themetabolicphenotypeofanindividualcanbestatisticallymodeledpriortodrugadministrationandcanbeusedtopredictpost-dosepharmacokineticresponse.Systemsbiologybuildsuponthereconstructionofbiologicalsystemsusingmetabolomicdataandusesthesetoderive testablehypothesesandthepredictivemodels.Changesintheconcentrationandfluxofthemetabolitesallowforabetterunderstandingofregulatorymechanismsandmetabolicnetworks.Thishelpsfurtherinterpretwholecellbehavior.

Detailedstudiesonmetabolomicshavebeenconductedprimarilyonmicroorganismsandplants.Therehasbeenlimitedworkdoneonanimalsorhumans,withthemainfocusbeingonbiofluids,ratherthanoncells.Evaluatingchangesinmetabolicprofileswillplayakeyroleinper-forminganintegratedanalysisofgenefunctionanditsrelationshipstophenotypes,andwouldhaveasignificantimpactonbiomedicine.

Drugscreeninglibrariestypicallyscreenfordesirablephar-macokineticscharacteristicsandbiophysicaldescriptorsof

druglikenessorleadlikeness.However,inordertoentercells,drugsrequiresolutecarriersakintonaturallyoccur-ringintermediarymetabolites(endogenites)andarelikelytointeractinasimilarmannertothem.Cheminformaticsmoleculardescriptorsarenowbeingusedtoassessmetabo-lite-likenesswhichisbeingusedasacriterioninthedesignandselectionofpharmaceuticaldruglibraries.9

Whilemassspectroscopyandnuclearmagneticresonancearewell-establishedtoolsformetoboliteanalysis,therate-limitingstepcouldbereadyaccessibilitytometabolomicsdatabases.

Attheendoftheday,accessibilitytobiobanks(repositoriesofbiologicalsamplessuchasDNAortissues),withdiffer-entkindsofinformationattachedtosamplesallowingformappingtodistinctpopulationsubtypes,wouldallowonetocorrelatedata.DatasuchasfrequenciesofmarkerslikeSNPs(singlenucleotidepolymorphisms),usingautomatedmoleculartechniques,aswellasthenecessarybioinformat-icstools,genefunction,andidentifyingmarkersthatmightplayaroleintheaetiologyofcommondiseases.

ThethreemajorpubliclyavailabledatabasesthatserveascentralrepositoriesforDNAandproteindataareGenBank,maintainedbytheNationalCenterforBiotechnologyInformation(NCBI),andDNADatabankofJapanandEuropeanMolecularBiologyLaboratory(EMBL),main-tainedbytheEuropeanBioinformaticsInstitute.Similarly,datafromtheHumanMetabolomeProjectwillbefreelyaccessibleinanelectronicformattoallresearchersthroughtheHumanMetabolomeDatabaseandallcompoundswillbepubliclyavailablethroughtheHumanMetabolomeLibrary.Othercomprehensivemetabolomicdatabasesin-cludeBiGG,SetupX,BinBaseandSYSTOMONAS;whereassomedrugdatabasesincludeDrugBank,Therapeu-ticTargetDatabase(TTD),PharmGKB,STITCHandSuperTarget.Forexample,PharmGKBcontainsdataonmorethan20,000genes,morethan3,000diseases,morethan2,500drugsandmorethan53pathways.Italsohasdetailedinformationon470geneticvariants(SNPdata)affectingdrugmetabolism,andhelpsrelategeneticvaria-tionsinindividualstodifferencesinreactionstodrugs.11

Thus,enterprisedatamanagementsolutionsandinnovativecomputationalanalyticaltechniquesarerequiredtointe-gratealllevelsofbiologicaldataorganizationfromsource-to-outcomecontinuumtoallowforthecost-effectiveanaly-sisofdatausingasystemsbiologyapproach.

Pharmacogenomics and Metabolomicscontinued from page 6

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Pharmacogenomics and Metabolomicscontinued from page 7

Personalizedmedicineisaboutgettingtherighttreatmentfortherightpatientattherighttime.Itssuccesslieswiththeeffectiveintegrationofpharmacogenomics,molecularmedicine(includinggeneticandgenomicsequencing,metabolomics,andproteomics)andhealthinformationtechnologies.Healthinformaticsisdefinedastheintersec-tionofinformationscience,computerscienceandhealthcare,whichwillpotentiallyallowformoleculardatatobelinkedtootherhealthinformation,primarilybywayofelectronicmedicalrecordsthatincludebothphysicianandpatientinput.

In2003,Hewlett-PackardformedapartnershipwithPart-nersHealthCareinanefforttoaccelerateclinicalgenomicsandadvancetheconceptofindividualizedmedicinebyintegratinggeneticknowledgeintothehealthcaresystem.Microsoftpartneredwithmorethan35otherorganizationsandinstitutionstoformtheBioITAlliance,analliancethatisworkingtoadvancetranslationalandpersonalizedmedi-cinebybetterintegratingscienceandtechnologyintohealthcare.Microsofthasalsodevelopedasoftwareplat-form,calledAmalga,thatwillhelpadvancepersonalizedmedicine.1Thiscanbeusedto“assimilatelargequantitiesofdiversedata,includingelectrocardiograms,magneticresonanceimagingscans,dynamicangiograms,ultrasoundimagesandultimately,genomicinformationprovidingavisualgatewayforinstantaccesstotheinformation,andallowingresearcherstomakeandprovetheirhypotheseswithinminutesinsteadofmonths.”

PhaseIvolunteersareroutinelyscreenedfordrugmetabo-lizingenzyme(DME)polymorphisms.12ThisscreeningisincreasinglyperformedroutinelyatmanypharmaceuticalcompaniesandpatientsenrolledinPhaseIIandPhaseIIIclinicaltrialsarebeinggenotypedtocorrelateefficacywithgeneticmarkers.Finally,theeffectiveapplicationofphar-macogenomicsandmetabolomicsintheclinicwillbebasedonthereproduciblecorrelationofthesedatawithdataobtainedfromotherestablishedclinicalmeasurements.

ToquoteHenig,froma1989New York Timesarticle,“Inthenot-so-distantfuture,wecanexpecttowalkintoaphysician’sofficeforanannualphysicalandwalkoutwithablueprintofourgeneticinheritance–andwiththeknowl-edgeofthemostlikelycauseofourowndeath.”13

References:1. M. M. Zdanowicz Concepts in Pharmacogenomics, 6.2. J. L. Fackler. and A. L. McGuire. Paving the Way to Personalized Ge-

nomic Medicine: Steps to Successful Implementation. Curr Pharmacoge-nomics Person Med. 2009 June 1; 7(2): 125.

3. Theranostics: Guiding Therapy. R and D directions staff, 1 – 14.4. Medscape Today. MammaPrint™: Another Milestone in Personalized

Medical Care for Breast Cancer: MammaPrint™. Expert Rev Mol Di-agn. 2009;9(5):417-422. © 2009 Expert Reviews Ltd.

5. http://www.ornl.gov/sci/techresources/Human_Genome/medicine/phar-ma.shtml

6. Pharmacogenomics. Nature Biotechnology 18, IT40 - IT42 (2000) doi:10.1038/80079.

7. N, Limaye. Personalising bioinformatics. Pharma Asia. September 01st, 2010.

8. Life in Metabolomics and Clinical Research. P. Phaphale, Abstracts of Phamarmacometabolomics and Pharmacogenomic Research work which Presented in Metabolomics Society Conf. in Boston, USA in Aug.2008.

9. K, Davies. The Human Metabolome Project. BioIT World.com April 12th, 2007

10. S. Carney. ‘Metabolite-likeness’ as a criterion in the design and selection of pharmaceutical drug libraries. Drug Discovery Today: highlighted review 11 August, 2009.

11. http://www.metabolomicssociety.org/database.html12. D.W. Nebert. Polymorphisms in Drug-Metabolizing Enzymes: What is

their clinical relevance and why do they exist? Am, J. Hum. Genet. 60: 265-271,10, 1997.

13. R. M. Hening BODY & MIND; High-Tech Fortunetelling. The New York Times, Published: December 24, 1989.

Nimita Limaye, PhD, CCDM, holds a doctorate in biotech-nology from Pune University and is currently working as VP and Global Head (Strategic Data Services & Medical Writing) at SIRO Clinpharm Pvt. Ltd. In her current role, she contrib-utes to winning and establishing key engagements, ensuring sustainability and profitability and driving strategy for engage-ments across clinical data management, biostatistics and pro-gramming and medical writing. She has also been trained as a black belt in Lean Six Sigma and plays a key role in driving operational excellence. She is 2011 Chair of the SCDM Board of Trustees.

Please nOte:

SCDM does not sell its membership list and does not condone the use of the online membership database for electronic broadcast marketing activities.

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Trends in Clinical Data Management Due to Growing Dissatisfaction with EDCsby Mitch Scurtu, Owner, Gobal Technologies

Agrowingdissatisfactioninthepharmaceuticalandbiotechin-dustrieswithcurrentelectronicdatacapturesytems(EDCs)onthemarketcanbesummedupalongthreedirections:• Qualityofclinicaldatabases• Costandtimetodeliveraqualitydatabase• Inabilitytoaccommodatelarge-scaledatamanagementop-

erations.

Quality of clinical databaseCurrentEDCsonthemarketaremostly,ifnotexclusively,query-baseddatamanagementsystems.Asmallfractionofallerrorsinadatabasearecleanedor“prevented”up-front.Thebulkoferrorsarecleanedwitheditchecks/queriesintheback-end,afterthedatahasbeenenteredinthedatabase.Thissitua-tionismostlikelytobeoverwhelmingtodatamanagers.Youhavemanythousandsorevenmillionsofdatapointsinthedatabase.Editchecksarelookingforerrorsinthedatabasewithahitormissrateof,atbest,50percent.Outofthetypicalninetypesoferrorsinaclinicaldatabase,editcheckscancatch,atbest,threetofourtypesoferrors.Itisliketheproverbiallook-ingforaneedleinahaystack.Ifithappensthattheerrorsaretobecleanedattheendofthestudy,thisdatacleaningjobcanbecomeunreasonable,giventimelines.

Inthegoodolddays,errorsinaclinicaldatabaseweremeasuredbyfindingdiscrepanciesbetweenfinalSASdatasetsandsourcedocumentsfromtheclinic.Errorrateswereassessedconse-quently.Currently,EDCscannotcopewiththemanyerrorsinthedatabaseandfallbackonmeasuringthequalityofclinicaldatabaseswithqueryrates(i.e.,queries/page).Iftherearefewqueriesperpage,thequalityoftheclinicaldatabaseisconclud-edtobeOK.Someflowsinthiswayofthinkingare:

• WhatisanOKdatabase?Whatisthequalityassurance?Qualityis,andmustbe,ameasurableentity.Generalstate-mentsaboutthequalityofaclinicaldatabasearelesscon-vincing.

• Editchecksareprogrammedupfrontandtestedon“clean”and“dirty”mockdatatomakesuretheeditcheckisfir-ingonerrors,butnotoncleandata.Inthebackendwearedealingwithreallifeclinicaldata,whichisadynamicentityandmayormaynotconformtowhatevermocktestdatawasgeneratedupfront.ContinuousreviewingandeditingandchangingofeditchecksasrealdataisaccumulatingisatbestatimeconsuminganddifficultjobtocoordinateformostoftheEDCs.

• Whatabouttheerrorstheeditchecksdidnotcatch?Howmuchoftheerrorsdidtheeditchecknotcatchandhowaretheseerrorsplayingintothequalityoftheclinicaldatabase?

AsfarasIamaware,EDCvendorsdonotprovidetheclientwithpositivenumericalassessmentofclinicaldatabasestheway

weweredoingitwithqualitycertificatesbearingamongothers,theerrorrates.Youwerelookingatoverallerrorratesperdata-base,errorratesperSASdatasets,errorrateforcriticaldata,whichofcoursehastobezero.ValidatingtheEDCsystem,trainingallpersonnel,andvalidatingEDCprocessesareallpartsofmonsterprocessesthataresupposedtobeconducivetothequalityofclinicaldatabasesandsupposedtoreplaceaplainanddirectmeasureofthequalityofaclinicaldatabase.Thosehavemanypartsandareapoorpredictoroftheresultingqualityofthedatabase.

Cost and time to deliver a quality databaseInarecentPhaseIIB/PhaseIIIstudyweworkedinoneofthetopEDCsatatopcontractresearchorganization.Halfwaythroughthestudy,wehad52,000queries.Astheindustrycostforonequeryresolutionisaround$100,thecostofcleaningthe52,000querieswas$5.2million.Thewholedatamanage-mentbudgetforthestudywas$320,000.FourmanagersinchargeofthisstudylefttheCROsuccessively,becausetheyfeltatalossinattemptingtofitthe$5.2millioncostintoa$320,000budget.Uppermanagementpracticeinthiscaseistoshiftthecostofcleaningclinicaldatatootherfunctionslikeclinical,medical,orclinicalsitecostsandclaimdatamanage-mentasuccessfuloperation,stayingwithinitsbudget.Obvi-ously,uppermanagementisdoingthenextbestthingtheyknowof.

Needlesstosay,timetocleanthedatabase,performingallQC,QAoperations,lockingdatabaseanddeliveringclinicaldatatotheclientwasdelayedbymonthsandtheblameandresponsi-bilitywasevenlyspreadtoallparticipatingfunctionsinthestudy.Theclienthadtoquietlybeartheconsequences,sinceallclinical,sitemanagement,datamanagementandstatisticsfunc-tionswereoutsourcedtous.

Inability to accommodate large scale data management operationsMorethan50,000querieshalfwaythroughthestudywitheachqueryhavingitsownresolutioncycleoftheoreticallyfiveto10days,andpracticallytwotosixweeks,madeforcomplicated,attimesimpossible,coordinationwork.

Addtothisoneormoreadditionalstudiesandthejobofsimul-taneouslycleaningupdatabasesbecomesanightmare,ifnotimpossible.PharmaceuticalcompanieswithhundredsofactivestudiesrunningsimultaneouslycannotexpectthatasingleCROcantakecareofalltheirstudies.Therefore,theyaredistributingtheirclinicaltrialsamongmultipleCROoperations.Morerecent,pharmaceuticalcompaniesapprehensiveaboutCROperformanceareoutsourcinglessthanfulldatamanagement

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servicestoCROs.Theyareoutsourcingfunctionslikeprogram-mingeditchecks,testingeditchecks,buildingdataentryscreens,developingCaseReportForms(CRFs),andenteringdataintoadatabase.ThatiswhatNelsonLee,attheSocietyforClinicalDataManagement,noticedinhisreviewofsomelessonslearnedfrombuildingafunctionalserviceproviderpartnership,publishedinInternational Clinical TrialsinMay2010.Growingdissatisfactionofpharmaceutical/biotechcom-paniesandalackoftrustintheCROs’capabilitiesofhandlingfulldatamanagementservicesinthecurrentquery-basedEDCs,forcedthesponsorcompaniestoscalebacktheirexpectationsofwhataCROcandeliver.

CurrentEDCsystemsonthemarketarequery-basedsystemsandarethereforenotcapableofaccommodatinglarge-scaledatamanagementoperations.

Trends in Clinical Data ManagementGrowingdissatisfactionwithcurrentquery-basedEDCsonthemarketistransformingtraditionalCROsintofunctionalserviceproviders.Everythingthatdoesnotworkwithcomplexandcomplicatedquery-basedEDCsispushedofftothecoordina-tionnightmareoffunctionalservicesprovision.Thetrendofintroducingquery-basedEDCsseemstobeabust,andanewcycleofthinkingandactinginthedirectionofnewsolutionstotheclinicaldatamanagementpuzzleisunderway.

BothpharmaandtheEDCvendorsarerecognizingthistrendandareattemptingto“retool”.Majorpharmacompaniesarediscretelyinquiringintotheintelligentdatamanagementmod-el,whichsomeofthemhadintheiroperationsmorethan10yearsagointheformofhomegrowndatamanagementsystems.CROs,unhappytobegivenlessofafulldatamanagementservicecontract,arerethinkingtheiroptions.ThetopCROcompanyiseagertore-introducetheintelligentdatamanage-mentmodel.Moreandmore,EDCvendorsareinvolvingintheiroperationsandespeciallyintheirnamesfeatures.OneEDCvendorevencallsitsEDCIDAM,whichstandsforintel-ligentdataacquisitionandmanagement.AnotherEDCvendorandCROserviceprovideriscallingitsEDCIDC–forintelli-gentdatacapture.

Whatisthesignificanceof“intelligence”andhowisthismak-inglifeofclinicaldatamanagersmoretolerable?

Intelligence-baseddatamanagementsystemsareintentonpreventingerrorsenteringclinicaldatabasesratherthancatch-ingthematthebackendafterdataentersdatabases.Thiscon-ceptgoesbacktotheintelligentdatamanagementmodel.The-oryofthismodeldrawsheavilyonthescienceofqualityknowninengineering,bankingandretail.Thistheorydealswithiden-

tifyingtheerrortypesinaclinicaldatabase,identifyingthesourcesoftheseerrors,andteachinghowtodevelopintelligencetocontainerrorsourcesandspecificwaysofpreventingallmechanicaltypesoferrors.Extensiveresearchintheintelligentdatamanagementmodelidentifiedninetypicalerrorsinaclini-caldatabaseandthreemajorerrorsources,whichareallstudyindependent.Eightofthesetypicalerrorsaremechanicalerrors(somedatamanagersliketocalltheseerrorsstupiderrors)andonetypewasalogicalerror.Logicalerrorsaredefinedaserrorsthatrequiresomeclinicaland/ormedicalreasoningtobere-solved.Progresshasbeenslowindevelopingacompleteintelli-gencestructuretopreventtheeighttypesofmechanicalerrorsandcontainthethreemajorerrorsources.ThisisthereasonwhypharmacompaniesandmajorCROsinvolvedintheearlypromotionoftheintelligentdatamanagementmodelyieldedtotheintroductionofquery-basedEDCmorethan10yearsago.

However,theintelligenceinfrastructureisnowacompletelymatureandknownentity,capableofdeliveringhighqualitydatabaseswithinitialerrorratesof0.1percentto0.4percent.AninitialerrorrateisdesignatedastheerrorratemeasuredasdiscrepanciesbetweenSASdatasetsandsourcedocumentsfromtheclinicatthetimethedatahaspastdataentry.Fornon-criti-calclinicaldata,thisisalreadyacceptablequalityfortheU.S.FoodandDrugAdministration.Simpledataentryintoadata-baseviaanintelligentdatamanagementmodelEDCisdeliver-ingFDA-acceptablequalitydatabases.Logicalerrorsaremadebyhumanintelligenceand,therefore,machineintelligencecannothandlethem.Logicalerrorswillhavetobecleanedoutofthedatabasetheold-fashionedwaybymanualreview.Thegoodnewsisthatstatistically,logicalerrorsareonlyasmallfractionofalltheerrorsinadatabase(0.4percentorless).Badnewsisthatlogicalerrorsarethemostimportanterrors,whichcanmakeorbreakastudy.ClinicaldatabasesworkedinanintelligentdatamanagementmodelEDCaretypicallyhighqualitydatabasesdeliveredatafractionofthecosttypicalforquery-basedEDCs.

Example:ForaPhaseIstudy,datamanagementserviceswasquotedat$80,000inatypicalEDC;samestudywasquotedinanintelligentdatamanagementEDCat$5,000.Needlesstosaywhattheclient’spreferencewas.

AtthebackendofadatabaseworkedinanIntelligentDataManagementEDC,thereareonlylogicalerrorstobecleaned,thereforetimetolockisgreatlyreduced.AndbecausetherearenoeditcheckstobeprogrammedandnoqueriestocontendwithinanintelligentdatamanagementEDC,itisideallysuitedforlarge-scaledatamanagementoperations.

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Ethical Issues in PharmacogeneticsCarol Isaacson Barash, PhD, Principal, Genetics, Ethics & Policy Consulting

Pharmacogeneticsisthestudyofhowgenesinfluenceanindividual’sre-sponsetodrugs.Thoughthefieldwouldseemtobebrandnew,itisreallyhalfacenturyold.Inthe1950s,scientistsfirstidentifieddeficienciesinenzymesthatexplainedadversereac-tionstodrugsandthatthesedeficien-ciescouldbeinherited.

Forexample,earlyresearchshowedthat10percentofAfricanAmericanmenservingintheKoreanWarbe-cameanemicafteringestingananti-malarialdrug,whichrarelycausedproblemsforCaucasiansoldiers.Pin-pointingthecausetookyearsofstudy:• Theanemicreactionwasdeter-

minedtobecausedbyavariationoftheG6PDgene,andthisvariationwasfoundtobecommonamongpeopleofAfricandescentbutnotsoamongCaucasians.

• Itwaslaterdiscoveredthatthenormalformofthegenemakesanenzymethathelpsprotectredbloodcellsagainstcertainchemicals.Lackingthatprotectiveeffect,thosewiththevariantformarevulnerabletodeleteriouseffects.

• Sincethattime,numerousotherenzymevariantshavebeenidenti-fiedandfoundtocauseadversereactions.Suchadverseeffectswereidentified,untilrecently,bytrialanderrormethods.Specifically,drugswereadministered,andanindi-vidual’smetabolismofthatdrugwastrackedbyrecordingtheamountofby-productintheirurine.

TheHumanGenomeProjecthasen-abledustoidentifythemolecularcom-positionoftheenzymesinquestionsothatwecanstudycorrelationsbetweengenotypic(genetrait)andphenotypic(physicaltrait)variability.Thesead-vanceswillincreasinglyenableustodetectindividualswhoarelikelyto

experienceadversereactionstomedi-cineswithouthavingtousepotentiallydangerousmethodsoftrialanderror.

Incomingyears,wearelikelytolearnthatparticularsinglenucleotidepoly-morphisms(SNPs)areassociatedwithsensitivitiesorresistancestochemicalcompoundsintheenvironment.Sci-entistsarenowrushingnotonlytoidentifycommonSNPs,buttodeter-minewhatdrugeffectscanbecorre-latedtothem.Thisknowledgeisen-abling“personalizedmedicine,”ortheabilitytotailortherapyforpositiveefficacyandsafety,thusavoidingtrialanderrorprescriptionsandimprovingpatientcare.

Pharmacogenomicsisarecentoffshootofpharmacogeneticswithabroaderscope.Forexample,itattemptstounderstandnotonlythemolecularcompositionofgeneticvariantsassoci-atedwithdrugresponse,butalsothebehaviorofthosevariants,includinghowthosegenesaffectdrugreceptorsites.Pharmacogenomicsisenablingdrugmanufacturerstodevelopthera-peuticagentsthataretargetedtore-ceptorsanddesignedtoreverse,ordramaticallymitigate,thesourceofthehealthproblem.Gleevac,onesuchsmartdrug,hasdemonstratedstun-ningsuccessinfightingchronicmy-eloidleukemia.Thus,theabilitytoprofileapatient’sgenevariationscanguideboththedevelopmentofnewdrugs,aswellastheselectionoftreat-mentprotocolsthatwillmorelikelyminimizeharmfulsideeffectsandensuremoresuccessfuloutcomes.

Ethical Issue #1: “Good” or “Bad” Allocation of Scarce Resources?Manybelievethatpharmacogenomics,likeothernewfieldsspawnedbytheHumanGenomeProject,representa

misallocationofresources.Ratherthanembarkonlearninghowgenesindicateapredispositiontodiseaseanddevelop-ingcuresandenhancements,orexperi-mentingwithwaystochangethehu-mangermcell,globaleffortsshouldbespentonsolvingmoreurgentproblemsfacinghumanity,suchasglobalfamineoraccessibilitytopotablewater.

Otherscontendthatpharmacogenom-ics,inparticular,offersenormouspo-tentialforclinicalbenefitstopatients,aswellaseconomicbenefitsforhealthcaredelivery.Theargumentsinfavorofpharmacogenomicsinclude:• IntheUnitedStatesalone,adverse

drugreactionsarethoughttokillabout100,000hospitalizedpatientsannually.Itisbelievedthatmanyofthesereactionsareduetogeneticvariantsandthusmanyofthesedeathscanbeavoidedbytestingpeopleforadversedrugresponsebe-foreadministeringdrugs.However,thescienceandtechnologyforsuchtestsareintheirinfancy.

• Another2.2millionpatientsincurserious,non-fatalreactions.Physi-cians,asstatedintheirHippocraticOath,areobligatedtodonoharm.Canthisobligationbefulfilledwhentheinformationavailabletophysiciansabouthowparticularmedicineswillfareintheirpatientsissomeager?Atpresent,physiciansgenerallyhavenowayofknowinginadvancewhetherthedrugtheyprescribewillorwillnotcauseanadverseeffectintheirpatients.

• Thissituationisfurthercompound-edbythefactthatmostadversedrugreactionsresultfromthefactthatmedicinesare“aone-size-fits-all.”Inotherwords,althoughmedi-cinesaretakenindifferentdosagesdependingonsymptoms,patient

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age,weightandotherclinicalfac-tors,thesecriteriamaynotbead-equatetoensurethataparticularmedicinewillbesafeandeffectiveforaparticularindividual.Untilrecently,therehasbeennoalterna-tivetoeitherdevelopingorprescrib-ingmedicines.Pharmacogenomicspromisestotaketheguessworkoutofdevelopingandprescribingsafeandeffectivedrugs.

Ethical Issue #2: What is a fair distribution of burdens and benefits in developing the field of pharmacogenomics?Moniesandpeople(asresearchsubjectsandasresearchers)willdevelopthefieldtothepointthatcustomizedmedicinewillbepossible.Whowillbenefit?• Theavailabilityofthisnewtechnol-

ogymaybeinitiallycostly,andthusaccessibleonlytothosewealthyenoughtopayforboththetestandthedesignerdrugbestsuitedtothem.Yet,thecostwilllikelydiminishsoastobecomeafford-abletomost.However,willlowercostsinfluenceapersontosubmittotherequiredgenetictesting,thuscreatingthreats,ifnotviolations,toone’sautonomy(thebasictenetofbioethics)?

• Researcherswhohaveinvestmentsincompaniescompetingintheirfieldmaybeinaconflictofinterestiftheyareconductingresearchforsuchacompany.Substantialconcernsaboutconflictsofinterestasbothathreattoqualityresearch,aswellastothewellbeingofresearchsubjects,haveaboundedfordecades.1

• Arecentstudyfoundthatpoliciesgoverningconflictsofinterestsatmajormedicalinstitutionsvariedconsiderablyinbothdisclosurere-quirementsandthenatureofper-mittedacademic-industryrelation-

ship.Thisopensthedoortothepos-sibilitythataninterestinfinancialgaincouldoverpoweraninterestineitherachievingvalidresearchorprotectingthewell-beingofsubjects.2

• Thereareseveralexamplesinthehis-toryofmedicalresearchwherethepatientpopulationstandingtobenefitfromadvances(i.e.,peoplewhohavedonatedtheirtime,bodies,andheartstoresearch)thoughcompensatedperstandardNationalInstitutesofHealth(NIH)terms,didnotreceivethean-ticipatedmedicalbenefitsbecausenewtherapieswereunaffordablewhentheybecamecommerciallyavailable,ornotcoveredbyinsurers.Thefollowingex-amplesillustratethis:• NumeroussufferersofGauchierDis-

easewhohelpedcompaniesdevelopsafeandeffectivetreatment(clini-calresearch),weredeniedaccesstotreatmentsbyinsurancecompaniesthatrefusedtocoverthehigh-costtherapies.Thesepatientscouldnotaffordtopaycostsoutoftheirownpocket.

• ACanavan’sDiseasesupportgrouphasbeeninstrumentalinhelpingacompanydeveloptreatmentbyrais-ingresearchfundsaswellassupply-ingresearcherswithwillingresearchparticipants.Thegroupissuingresearchfacilities,notforfinancialreturnoninvestment,butfortheopportunitytoplayanactiveroleinfurtheringresearch/treatmentgoals.3

Ethical Issue #3: Will individualized medicine be used ethically?Knowingifapersonwillrespondtoadruginwaysthataresafeandeffectiveforthatindividualwillenablepatientstoavoidmedicationsthataredangerousorineffectiveforthem.

Thisisnottosaythatgenesaretheonlykeytocures.Environmentplaysarole,

too.Dietaryandlifestylebehaviorsarestilllikelytoaffectthesafetyandefficacyofmedicinesforpar-ticularindividuals.Inaddition,variationindrugresponseisnotlimitedtomicropolymorphisms.

Environmentalfactorsalsoplayarole(suchassunexposure,drug/druginteraction,drug/foodinterac-tion).However,scientistsarepoisedtouncoverwhythemetabolismofparticularindividualsabsorbsanddispelspharmaceuticalsinaparticu-larmanner.

Considerthefollowinghypotheticalclinicalscenarioasillustratingsomeoftheethicalissuesthatcanariseinclinic:• A42-year-oldmanofScandi-

naviandescentpresentstohisphysicianwithageneralfeelingofmalaise.

• Fiveyearspreviouslyhewasdiagnosedwithhighserumcho-lesterol,whichheattemptedtocontrolwitharegimenofexer-ciseanddietaryregulation,withnosuccess.Hisphysicianthenprescribedforhimdrugtherapy.

• Beforeagreeingtotakethepre-scribedmedication,thepatientretrievedvolumesofinformationfromtheweb,including,butnotlimitedto,peer-reviewedjournalarticlesabouthisconditionandhisphysician’sfirstchoicedrug.

• Aftersixmonthsoftherapytherewasonlyamodestloweringofcholesterollevels,sothemedi-cationwaschanged.Afterninemonthsonthesecondmedica-tion,therewasstillnomarkedeffect.

• Bythetimethepatientwasabletoseehisphysicianagain,anewertherapyhadbecomeavail-

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able.Thisnewdrughadbecomethephysician’sfavorite.Thephysi-cianadvisedthepatienttoswitchtothisnewdrug,andthepatientwaseagertotryit.Threeweekslater,thepatientcametoseethephysiciantocomplainofcontinuedmalaise.

Thepatientmayhavebeenbetterservedifhehadundergonethefollow-inggenetictests,theresultsofwhichcouldhaveprovidedvaluablemanage-mentinformation:• Test1:Apre-dispositionaltestto

determinewhetherthepatienthasapolymorphismassociatedwithplaquedevelopmentleadingtocoronaryheartdisease.

• Test2:Toseewhetherthepatienthasapolymorphismassociatedwithanon-responsetothemedi-cation(thenewestmedicine).ApositiveTest2indicatesthatthepatientlacksanenzymeneededtometabolizethedrug.Theabsenceoftheenzymemeansthatthedrugisdispelledfromthebodywithoutabsorption.

• Test3:Toseewhetherthepatienthasapolymorphismwhichindi-catesthepresenceofanenzymeresponsibleformetabolizingthedosagetooslowly,makingthedruginthatdosagetoxictothepatient.

• Therationalsequenceoftestingis1-3.

Ifthepatienttestsnegative,meaningthathedoesnothavethepolymor-phismassociatedwithplaquedevelop-ment,thenhishighcholesterolposesnohealthriskandmedicationtolowercholesterollevelsarenotindicated.Ifthepatienttestspositive,meaningthathedoeshavethepolymorphism,thenheispredisposedtocoronaryheartdisease(CAD)byvirtueofbeingaplaquemaker.Inthiscase,cholesterol-loweringmedicationisindicated.

Ethical Issues in Pharmacogeneticscontinued from page 13

Ethical Issue #4: Whose right predominates?Thefatherofaresearchsubjectopenedaletteraddressedtohischildandlearnedthathischildhadenrolledinageneticresearchstudy.• Theletterindicatedthatforthe

purposeofresearch,theresearchfacilityhadobtainedsomeofthefather’smedicalrecords.Thefatherobjectedtowhatapparentlywasnon-consensualdisclosureofhismedicalinformation,evenforthepurposeofobtaininganinformativefamilyhistorytobeusedtoprovideoptimalcarefortheson/daughter.

• Outraged,thefatherphonedtheOfficeforHumanResearchPro-tections(OHRP)5oftheU.S.De-partmentofHealthandHumanServices,andprotestedthattheresearchersobtaininghisfamilyhistorywithouthisexplicitcon-sentconstitutedaviolationofhisprivacyrights.OHRP,sidingwiththefather,blockedtheoffspringfromusingthefather’sinformationandforbadeanyfurtherattemptstoobtainmoreinformationonthegroundsthatanindividual’srighttoprivacyandautonomyispara-mount.

Amongtheinterestinganddifficultissuesinthiscaseisthefactthatitchallengesustothinkdeeplyabouttheweightedvaluesweassigntofirstprin-ciples,namelytherighttoprivacy.Whoserightpredominatesinthiscase-thefather’sorthechild’s?

FederalmedicalprivacyrulesundertheHealthInsurancePortabilityandAc-countabilityAct(HIPAA)spellouttherequirementstoensureprivacyofallindividualsinthecontextofelectronichealthinformationtransmission.Al-thoughseveralsectorsofthehealthcareindustryopposedtheadoptionof

theserulesbasedoncostandimpracti-calities,HIPAAremainsabarriertounauthorizedaccessofprivatehealthinformation.TheGeneticInforma-tionNondiscriminationAct(GINA),whichpassedin2008,protectsindi-viduals,exceptthosewhoseinsuranceisobtainedthroughtheirsmallbusi-nessemployerandtheuninsured,fromsubstantialcostburdensbasedontheirgeneticprofile.However,fornumer-ousreasons,itisfarfromclearifandhowtheseruleswouldsupportthefather’sclaim.4

Ethical Issue #5: Could individuals be arguably coerced to undergo genetic testing in the context of the State’s right to protect the public?Inknowingthatthepresenceofanindividual’sgenevariantscanpredictthatcertaindrugswillnotachievethedesiredtherapeuticbenefit,itwouldnotseemfar-fetchedtoimaginethatMedicaidandMedicarewouldnotwanttopayfordrugsthatdonotwork.Furthermore,thosethatresultingreatercostburdens,suchashospital-izationtotreatadversesideeffects.Particularlygivenstatebudgetdeficits,thecostincentivetotestbeneficiariesfordrugresponseinadvanceofpre-scribing,ifnotalsothedesiretoensurepositivepatientoutcomes, wouldseemcompelling.

Forexample,roughly5percentofthepopulationdoesnotcatalyzethecon-versionofcodeinetomorphineandthusachievenopainrelief.Knowingthatnon-codeinepainmedicationisindicatedinadvanceofprescribingandrealizingthefailedefficacyisbutoneexampleofhowconsiderablecostcouldbesaved(perfectlygoodmedi-

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15 Data Basics • winter 2010

Ethical Issues in Pharmacogeneticscontinued from page 14

Return to Cover

cineswouldnotbethrownawayandcostlyadversereactionswouldnotoccur).Whetherthestatewouldim-posegenetestingasaconditionofenrollmentorcontinuedbenefitsisunclear,giventhestate’slegalpreroga-tivetoenactlegislationforthepurposeofprotectingitscitizens.

ConclusionInspiteofourbesteffortstoanticipateandresolveethicalquandariesarisingfromtheapplicationofnewgenetictechnologies,itislikelythatunexpect-edconflictswillarise.Thosediscussedinthisarticlearenotintendedasanexhaustivelist.

Theethicalissueshereareremarkablysimilartothosestandardlyinvokedinpre-dispositionaltestingdiscussions.Yet,arguablythestakesarelowerhere.Theriskofpsychologicalharmis,forthemostpart,farlesssubstantialthantestingforalateonsetdisorderlikeHuntington’sdiseaseforwhicheffec-tivetreatmentdoesnotexist.Still,intheabsenceofguidanceaboutwhatconstituteshighandlowstakes,ethi-callydefensibledecision-makingre-quiresacknowledgementofthecom-petinginterestsandabroadenoughscopeofconcerntoanalyzehowanapparentlowriskcanbecomeahighriskandviceversa.

Pharmacogeneticswillpermitgeneprofilingtoanswerquestionsaboutmedicineresponses,aswellasenableresearcherstodesignbetterandsafermedicines.Thescienceanditsapplica-tionsarerealtodayandwillbeincreas-inglycommonincomingyears.Whilethelikelihoodthatindividualswillbeshutoutfromhealthinsurancebecausetheydonotrespondtoasingledrugorbecauseaparticulardrugformulaistoxictothemisextremelylow,aswouldbeemploymentexclusions(inhiring,promotingorjobresponsibili-ties),theissuesunderscoretheimpor-tanceofdebatingtheethicaluseofpharmacogeneticsmorewidely.

IntheUnitedStates,45millionpeoplelackanyhealthinsurance,andthusareatthemercyofhospitals’budgetsforunrecoverableexpenditures.Further,theseindividuals,andthemanymoremillionsofpeoplewithhealthinsur-ance,havenoaccesstosophisticatedmedicalcareduetolimitsimposedbyinsurers,especiallyfor-profitmanagedcareorganizationsandself-insuredemployers.Whethercustomizedmedi-cinewillbeavailabletoallremainsalargeunknown.Ifhistoryisahinttohowthisnewfieldwillbeused,weoughttoactnowtoensurethatthebenefitsareavailabletoall.

© 2001, American Institute of Biologi-cal Sciences.

References:1. Science Magazine, Vol. 290, 8 Dec. 2000,

p. 1873: “Studies trace patchwork of conflict policies,” B. Agnew.

2. The New England Journal of Medicine, Vol. 343, 30 Nov. 2000: “Conflict-of-interest policies for investigators in clinical trials,” Bernard Lo, Leslie E. Wolf, Abiona Berkeley.

3. Science, Vol. 290, 10 Nov. 2000, p. 1062: “Genetic Testing: Families Sue Hospital, Scientist for Control of Canavan Gene.” Eliot Marshall.

4. U.S. Dept. of Health and Human Services. Office for Civil Rights - HIPAA. “Medical Privacy - National Standards to Protect the Privacy of Personal Health Information.” http://www.hhs.gov/ocr/hipaa/

5. U.S. Dept. of Health and Human Services. “Code of Federal Regulations: Protection of Human Subjects.” http://www.hhs.gov/ohrp/humansubjects/guidance/45cfr46.htm. HHS (OHRP) home page: http://www.hhs.gov/.

Carol Isaacson Barash, PhD, is a recognized expert in genetic testing, ethics and the integration of genomic diagnos-tics into health care delivery. She works with leading non-profits, academic centers, and industry on commercializa-tion of new genetics-oriented products as well as marketing/communication, and patient education related to genetics and medical ethics.

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4 Pharmacogenomics: Historical Perspective and Current Status, Kalow W., Methods in Molecular Biology, 2005; 311:3–15. 21

5 http://www.ornl.gov/sci/techresources/Human_Genome/faq/snps.shtml

6 Human Genome Project: http://www.ornl.gov/sci/techresources/Human_Genome/home.shtml

7 Highly Scalable Genotype Phasing by Entropy Minimization, Gusev, A. Mandoiu, I.I. Pasa-niuc, B., IEEE/ACM Transactions on Computa-tional Biology and Bioinformatics (TCBB), Vol. 5, Issue 2, April-June 2008: 252 – 261

8 Role of pharmacogenomics in drug discovery and development, A Surendiran, SC Pradhan, C Adithan, Indian J Pharmacol, Vol. 40, Issue 4, August 2008: 137-143.

9 http://clinicaltrials.gov/ct2/results?term=pharmacogenomics

10 Ethical perspectives on pharmacogenomic profil-ing in the drug development process, Amalia M. Issa, Nature Reviews Drug Discovery, Vol. 1, April 2002: 300-308

Pharmacogenomics Overview and Impact on Data Management in Clinical Researchcontinued from page 5

11 Pharmacogenetics in drug discovery and develop-ment: a translational perspective, Allen D. Roses, Nature Reviews Drug Discovery, Vol. 7, No. 10, October 2008: 807-817.

12 Pharmacogenomics: integration into drug discov-ery and development, Johnson K, Thompson J, Power A., Current Topics in Medicinal Chemis-try, Vol. 5, No 11, 2005: 1039-1045

13 Pharmacogenetic Application in Drug Develop-ment and Clinical Trials, Michael M. Shi,

Michael R. Bleavins and Felix A. de la Iglesia, Drug Metabolism & Disposition, Vol. 29, No. 4, April 2001: 591-595.

14 Advances in pharmacogenomics and individual-ized drug therapy: exciting challenges that lie ahead, Daniel W. Neberta, and Elliot S. Vesellb, European Journal of PharmacologyVol. 500, Issues 1-3, October 2004: 267-280.

15 Pharmacogenetics: potential for individualized drug therapy through genetics. Johnson JA. Trends in Genetics, Vol. 19, No. 11, November 2003: 660-666.

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