Top Banner
These slides were presented at h/ps://www.pmwcintl.com/cur7s-bagne-2018mich/. You will learn how to make drug development more scien7fic, precise, ethical, produc7ve, and less costly. Other presenters at this mee7ng are drivers of precision drug development. These include Lee Hood represen7ng systems biology and P4 Medicine, Francis Collins represen7ng modern genomics, and Eric Topol represen7ng the science of individuality in his book, The Crea(ve Destruc(on of Medicine. 1
22

These slides were presented at h/ps:// ...

Dec 18, 2021

Download

Documents

dariahiddleston
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: These slides were presented at h/ps:// ...

Theseslideswerepresentedath/ps://www.pmwcintl.com/cur7s-bagne-2018mich/.

Youwilllearnhowtomakedrugdevelopmentmorescien7fic,precise,ethical,produc7ve,andlesscostly.

Otherpresentersatthismee7ngaredriversofprecisiondrugdevelopment.TheseincludeLeeHoodrepresen7ngsystemsbiologyandP4Medicine,FrancisCollinsrepresen7ngmoderngenomics,andEricTopolrepresen7ngthescienceofindividualityinhisbook,TheCrea(veDestruc(onofMedicine.

1

Page 2: These slides were presented at h/ps:// ...

2

Page 3: These slides were presented at h/ps:// ...

Prevailingrandomizedcontrolledtrialdesigns,da7ngbackto1948,wereanimportantscien7ficadvance.However,RCTdesignscomplianttoCONSORT,FDAguidelines,andPCORIMethodologyStandardsdohavefundamentalproblemsandlimita7ons.Amongtheseareconfoundingtreatmenteffectswitheffectsofindividualdifferences,includinggene7cdifferences.Eachpa7entcouldbeadifferentconfoundedmixofac7vetreatmentandindividualdifferencesresponse.Genomicsaccentuatesindividualdifferences.CurrentRCTdesignsaveragethemout.Homogenizingpersonsisan7the7caltogenomics.

Stra7fica7onhelps.However,therearemorecombina7onsofindividualdifferences,typesoftreatment,anddosesoftreatmentthantherearepersonintheworld.Youwilllearnhowtosolvethisproblemwithmorerandomiza7onandSIMA.

3

Page 4: These slides were presented at h/ps:// ...

PrevailingRCTdesignsalsoconfoundtrueresponderstoac1vetreatmentwithrespondersonac1vetreatmentthatwouldhaverespondedtoplacebo.Eachpa7entcouldbeadifferentconfoundedmixofac7vetreatmentandplaceboresponse.

Inaddi7on,classical-designRCTsthatfocusonefficacyneglectsafety,precludedoseop7miza7onforindividualpa7ents,arenotwellsuitedtoaccountfordelayandpersistenceofresponse,anddonotcapitalizeonmoderndatacollec7onandprocessingcapabili7es.Youwilllearnhowtoaddresssuchproblemsasaset.

4

Page 5: These slides were presented at h/ps:// ...

Confoundingcontributesto“imprecisionmedicine”asquan7fiedbyNikSchorkinNature.Hereareresultsfor10top-grossingdrugs.Thebluepersonsarehelped.Theredpersonsarenot.Imprecisiondrivesupcostsandcloudsiden7fica7onofgene7candotherpredictorsofdifferen7aldrugresponse.

5

Page 6: These slides were presented at h/ps:// ...

DrugdevelopmentwithSIMAcanbesimpler,morescien7fic,andmoreprecisebymeasuringthebenefitsandharmsoftreatment.Measurementofbenefitandharmreducesthedimensionalityoftreatmentevalua7onproblems.

Randomizedcontrolledtrialscanprovidecanprovideaccurateandintegratedevalua7onsofsafetyandeffec7venessforeachperson.

Rejec7onofthenullhypothesistotherightindicatesthatbenefitsexceedharms.Rejec7onofthenullhypothesistotheleaindicatesthatharmsexceedbenefits.

Inaddi7on,SIMAprovidesscoresthatcanbeaggregatedandanalyzedsta7s7callyforpopula7onmedicine.

Thisapproachwouldhelpobviatetheclinicalresearchtoclinicalprac7cetransla7onbo/leneck.

6

Page 7: These slides were presented at h/ps:// ...

SIMAisatooltoacceleratebasicandappliedsciencesofcomplexadap7vesystems.

SIMAmeasuresinterac7onsover7methatdescribeandhelppredicthowCASworkover7me.

SIMAquan7fiesedgesinnetworkgraphswheneachnodeisa7meseries.

SIMAcanbeanAItool.

TodayIfocusonmeasurementofbenefitandharmforresponse.

7

Page 8: These slides were presented at h/ps:// ...

Thisisasetofthreesingle-personRCTsthatusethesametypeofdrug,thesamesetoffourdosesincludingplacebo,andthesamethreeresponsevariables.Thesearemockdatafora16weektrialwith4pairsof2-weekperiods.

Fourdoses,includingplaceboaszero-dose,wererandomizedover7meforeachofthreepa7ents.Within-personrandomiza1onofdoseseliminatesbothtypesofconfoundingshownbefore.CONSORT-compliantRCTsdonotrandomizeenough.Seethatdoseisinves1gatedasa1me-dependentdimensionalvariable,NOTacategoricalvariable.

Thissmall-scaleexamplehasonlythreeresponsevariables.Ideally,useenoughsafetyandeffec7venessresponsevariablestoobtaincomprehensiveevalua7onsofsafetyandeffec7veness.

TheseInterac7on-over-Timescores,computedbySIMA,quan7fytheamountofevidenceforinterac1onsover1me.Posi7veIoTscoresquan7fyhigherdoseswithhigherresponsevariablelevels.Nega7veIoTscoresquan7fyhigherdoseswithlowerresponsevariablelevels.

Userssettowardanduntowarddirec7oninaccordwithclinicalsignificanceandpa7entpreferences.Herehigherbloodpressureisuntoward.

Herearetheninebenefitandharmscoresinbagnez-scoreunits,threeforeachpa7ent.

Weightsalsoaresetintermsofclinicalsignificanceandpa7entpreferences.

OverallBenefitandHarmScoresareweightedaveragesforindividualpersons.

Nowcomessta7s7csaaerSIMA.Thenullhypothesisofnooverallbenefitandharmwasrejectedintheposi7veorbeneficialdirec7onwithatwo-tailedt-testonmeanoverallbenefitandharmscore.

8

Page 9: These slides were presented at h/ps:// ...

Thisillustratestheamountofevidencequan7fiedforabenefitscorewithavalueof8.92bagnez-scoreunits.

9

Page 10: These slides were presented at h/ps:// ...

Thisisfromacomputersimula7onthatprocesseddifferentpor7onsofadatasetcreatedbyaddingwhitenoise–randomnormaldeviates–toagivensignal.Halfoftherepeatedmeasurementswereontreatmentandhalfoff.

SeehowsignificancelevelsincreasewiththenumberofsubjectsasexpectedusingchangescoresandwithoutSIMA.

AlsoseehowsignificancelevelsincreasewithnumberofrepeatedmeasurementsandSIMA.

Usingmorerepeatsisbe/erwhenonewantstoavoidconfoundingtheeffectsofindividualdifferenceswithtreatmenteffects,whenmorerepeatsarelessexpensivethanmoresubjects,andforraredisorders.Moredisordersarebecomingrareasdiagnos7cspecificityincreases.ThecurrentversionofSIMAsoawarecanprocessupto500repeatedmeasurements.

10

Page 11: These slides were presented at h/ps:// ...

Thisshowshowyoucoulddrilldownfromthesta7s7callysignificantdemonstra7onresulttoiden7fytheop7malminimumdoseacrossresponsevariablesforeachperson.

SIMAenablesrandomized7tra7ontoop7maldoseforeachperson.

Seehowtheseop7malminimumdosesare40,80,and20forpersons1,2,and3respec7vely.

Seehowthegroup-averageresultcloudstheperson-specificresults.

11

Page 12: These slides were presented at h/ps:// ...

Thecorrectanswersareinbold.

ThishelpsshowhowSIMAandsta7s7csaretwodis7nctandoaencomplementarymethodsthatdoapplytodifferenttypesofdataanddodifferentthings.

Precisiondrugdevelopmentandmedicineneedbothquan7ta7vemethods.

Deathisarealendpoint.Bloodpressureisnot.CONSORT-compliantRCTsoaenalsoconfoundrealendpointswithar7ficialendpoints.

12

Page 13: These slides were presented at h/ps:// ...

SIMAhelpsenabletrulypa7ent-centeredcompara1vesafetyANDeffec1venessresearch.

Increasingnumbersofdrugsmeanthatmoretreatmentsneedtobecompared.

Followthiswithasingle-samplet-testforeachtypeoftreatmenttoseeifeithertreatmentisbeneficialorharmful.

SIMAcangreatlysimplifysta7s7calanalyses.

13

Page 14: These slides were presented at h/ps:// ...

Ourna7onalmo/oisEpluribusunum–Outofmany,one.Thisslideisaboutestablishingthescienceofindividuality,Eunumpluribusandatwo-waystreetbetweenindividuals(SIMA)andpopula7ons(sta7s7cs).

You’vealreadyseenhowthe3-persondemonstra7onyieldedasta7s7callysignificantresult.Thatrepresentsgeneraliza7onatthetopofthepyramid.

Yousawthegroupaverageoverallbenefitandharmscore,thesecondleveldown.

YoualsosawhowSIMAquan7fiedoverallbenefitandharmasnonlinearfunc7onsofdoseforeachpersonfromtheresponsevariablespecificdose-responserela7onships.Thisrepresentswithin-personsummariza7on.Theseweredifferen7allyweightedandaveragedforthegroupofthreepersons–thesecondleveldown.

Yousawtheresponse-variable-specificbenefitandharmscoresforeachperson.Suchdetailedresultsillustratethescienceofindividuality.

Inaddi7on,SIMAcanquan7fybenefitandharmasnonlinearfunc7onsofresponsevariablelevel,delayandpersistenceofresponse,etc.SIMAcanusede-trendingtodis7nguishtreatmenteffectsfordiseaseprogressionandspontaneousrecovery.SIMAcanuseBooleanindependenteventsfordrug-druginterac7onsanddrugcocktails.SIMAcanuseBooleandependenteventsforsyndromessuchasmetabolicsyndromeanddepression.SIMAcanquan7fymechanismsofdiseaseandtreatmenteffect.SIMAcanhelpquan7fyevidenceforcausalitywithinpersonsorotherindividuals.

Thisapproachhaspoten7altoacceleratebothhighlypa7ent-centricprecisionmedicineandpopula7onmedicine.

Thisapproachcanhelpobviatetheclinicalresearchtoclinicalprac7cetransla7onproblemwithbothdrugsandservices.

14

Page 15: These slides were presented at h/ps:// ...

Eroom’slawstatesthatpharmaceu7calindustryproduc7vityhalvedaboutevery9½yearsininfla7on-adjusted$despitealltheinterveningscien7ficandtechnicaladvances.

Coulditbethattheregulatorysciencegatewayisbo/leneckedbyclinicaltrialsthatusecategoricalindependentvariablesandgroupaveragesatendpoints?

Mightweneedtoknowindividualswellthroughthescienceofindividualitybeforewecanclassifythemwell?

Clinicianstreatindividuals.Mightthescienceofindividuality,enabledbyapplyingSIMAtomul7variate7meseriesdata,betheheretoforemissingfounda1onformuchofevidence-basedprecisiondrugdevelopmentandmedicine?

MightthisapproachhelpreverseEroom’slaw?

15

Page 16: These slides were presented at h/ps:// ...

Yousaw,albeitwithmockdata,howitmightbepossibletoachievesta7s7callysignificantresultsinrandomizedsingle-groupRCTswithsmallnumbersofpersons.

Mightitbepossibletolargelyendclinicaldrugsafetyproblems?

16

Page 17: These slides were presented at h/ps:// ...

TherearemanywaystohelpvalidateSIMAonthewaytoprecisiondrugdevelopment.

17

Page 18: These slides were presented at h/ps:// ...

WithSIMA,drugdevelopmentbecomesmorelikeusingafunnellargeendup.SIMAhelpsprovideinforma7onneededtotargettherightdrugattherightdosetotherightperson.

18

Page 19: These slides were presented at h/ps:// ...

Genomicsismilesaheadofphenomics.Wholegenomesequencingisbecomingfeasibleformany.However,weares7llusingoutmodeddiseaseclassifica7onsandconfoundedcategoriesofresponderandnon-responder.

Thisproblemcanbelikenedtotryingtonailphenomicjellytoawallwithgene7cnails.

19

Page 20: These slides were presented at h/ps:// ...

Thisslideemphasizesmechanisms.Mechanismsandresponsetake7me.SIMAcomputes7me-dependentmechanism-specificphenotypesfrommul7variate7meseriesdata.

Thesethreecategories–diagnos7c,treatmentresponse,andagency–aredis7nguishedbyhow7meseriesinternalorexternaltotheindividualareselectedtooperateasindependentanddependentvariableswhenapplyingSIMA.

20

Page 21: These slides were presented at h/ps:// ...

Measurementofbenefitsandharmsisneededwheneverthereisuncertaintyaboutbenefits,harms,anddoses.

21

Page 22: These slides were presented at h/ps:// ...

DataSpeaksisdedicatedtoaccelera7ngprecisiondrugdevelopmentandmedicineforeveryone.

22