cellular therapy: providing new hope for cancer patientsin a phase 1 trial, axicabtagene ciloleucel...
TRANSCRIPT
CellularTherapy:ProvidingNewHopeforCancerPatients
KathleenDorri-e,MDAssistantProfessor,DivisionofHematology-Oncology
October26,2018
1
Objectives
2
• TodescribewhatCART-cellsareandhowtheywork
• Todiscussuniquetoxici-esofCART-cells• Toreviewmajorclinicaltrialresultsandwhat’snext
• ToreviewwhatTILsareandhowtheyarebeingusedinsolidtumors
WhatareChimericAntigenReceptor(CAR)Tcells?
Tcellsgene-callyengineeredtoexpressanar-ficialTcellreceptorthroughwhichtheytargetspecificpopula-onsofcells
3
CAR structure, according to signaling domains.
Shannon L. Maude et al. Blood 2015;125:4017-4023
©2015 by American Society of Hematology
CD19:ARationalTargetforTherapy
5
Adapted from Blanc V et al. Clin Cancer Res. 2011;17(20):6448-6458.
FL, follicular lymphoma; GC, germinal center; MCL, mantel cell lymphoma; MZL, marginal zone lymphoma; WM, Waldstrom’s macroglobulinemia.
• CD19isexpressedonBcellsandB-cellprecursorsandisnotexpressedonbonemarrowstemcellsorother-ssues
CD19
ALL MCL
MZL
DLBCL
Stem cell
Pro-B cell
Pre-B cell
CLL FL
WM
Plasma cell
Late plasmablast
Native B cell
Activated B cell
Memory GC B cell
Bone marrow Periphery Bone marrow
7
CytokineReleaseSyndrome(CRS)
FeverHeadacheNauseaMyalgias
HypotensionTachycardiaHypoxia
OrganToxicity(renal/hepaBc)
Neurotoxicity
Somnolence(affecBngADLs)àobtundaBonConfusionàseveredisorientaBon/comaEncephalopathy(affecBngIADLs)àcoma
Dysphasia(wordfindingdifficulty)àcan’tread,write,orcommunicate
SeizureCerebralEdema
SpecialToxicityConsiderations
Toxicitymanagement• Cytokinereleasesyndrome
– Suppor-vecare:Abx,an--pyre-cs,fluid,pressors– Tocilizumab(an--IL6Ab)– Moreseveretoxicity:Steroids
• Neurotoxicity:– Steroids+/-(Tocilizumab)– Suppor-vecare:One-to-oneobserva-on,ICUmonitoringasneeded,NPOstatus,Telemetry/pulseox
OtherToxicities
9
Cytopenias–canbeveryprolongedB-cellaplasia(infec-on)HypogammaglobulinemiaMacrophageAc-va-onSyndrome(MAS)/Hemophagocy-cLymphohis-ocytosis(HLH)ElectrolyteAbnormali-es(hyponatremia,hypokalemia)TumorlysisPotenBalToxiciBes:SecondarymalignancyReplica-on-competentretrovirusAutoimmunedisorders
ClinicalTrialResults
11
AcuteLymphoblasBcLeukemia(ALL)*DiffuseLargeBcellLymphoma(DLBCL)*ChronicLymphocyBcLeukemia(CLL)MulBpleMyeloma
*IndicatesFDAApproved*
• Open-label,single-armmul-centerglobalstudy(Pivotalregistra-ontrial)
• CTL019(Kymriah™,-sagenlecleucel)(4-1BB)• Relapsed/RefractoryALLinpediatric/youngadultpopula-on
• 88pa-entsenrolled,68pa-entsinfused• Medianfollow-upwas6.4months• Medianage12
CAR-TcellsforALL:ELIANAtrial
Buechner,J.EHA,June24,2017,AbstractS476
CAR-TcellsforALL:ELIANAtrial
Completeresponse/Cri**allMRDnegaBveinmarrow
52(83%)
RFSprobabilityat6mo
75%(57%-87%)
OSprobabilityat6mo
89%(77%-94%)
OSprobabilityat12mo
79%(63%-89%)
N=63(allwithatleast3mofollow-up)
Buechner,J.EHA,June24,2017,AbstractS476
ALLSummary• Majorityofpediatricandadultpa-entswillachieveMRD-nega-veCR
• Adultpa-entsseemtorelapsefaster• Diseaseburdengoinginmaycorrelatewithoutcomeandtoxicity
• Pediatric/youngadultpopula-onhasanFDAapprovedtherapy(Kymriah™)
17
DLBCL–ZUMA-1(NIH/Kite)
18
T h e n e w e ngl a nd j o u r na l o f m e dic i n e
n engl j med 377;26 nejm.org December 28, 2017 2531
The authors’ full names, academic de-grees, and affiliations are listed in the Ap-pendix. Address reprint requests to Dr. Neelapu at the University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, or at sneelapu@ mdanderson . org.
Drs. Neelapu and Locke contributed equal-ly to this article.
This article was published on December 10, 2017, at NEJM.org.
N Engl J Med 2017;377:2531-44.DOI: 10.1056/NEJMoa1707447Copyright © 2017 Massachusetts Medical Society.
BACKGROUNDIn a phase 1 trial, axicabtagene ciloleucel (axi-cel), an autologous anti-CD19 chime-ric antigen receptor (CAR) T-cell therapy, showed efficacy in patients with refractory large B-cell lymphoma after the failure of conventional therapy.
METHODSIn this multicenter, phase 2 trial, we enrolled 111 patients with diffuse large B-cell lymphoma, primary mediastinal B-cell lymphoma, or transformed follicular lympho-ma who had refractory disease despite undergoing recommended prior therapy. Pa-tients received a target dose of 2×106 anti-CD19 CAR T cells per kilogram of body weight after receiving a conditioning regimen of low-dose cyclophosphamide and fludarabine. The primary end point was the rate of objective response (calculated as the combined rates of complete response and partial response). Secondary end points included overall survival, safety, and biomarker assessments.
RESULTSAmong the 111 patients who were enrolled, axi-cel was successfully manufactured for 110 (99%) and administered to 101 (91%). The objective response rate was 82%, and the complete response rate was 54%.With a median follow-up of 15.4 months, 42% of the patients continued to have a response, with 40% continuing to have a complete response. The overall rate of survival at 18 months was 52%. The most com-mon adverse events of grade 3 or higher during treatment were neutropenia (in 78% of the patients), anemia (in 43%), and thrombocytopenia (in 38%). Grade 3 or higher cytokine release syndrome and neurologic events occurred in 13% and 28% of the patients, respectively. Three of the patients died during treatment. Higher CAR T-cell levels in blood were associated with response.
CONCLUSIONSIn this multicenter study, patients with refractory large B-cell lymphoma who received CAR T-cell therapy with axi-cel had high levels of durable response, with a safety pro-file that included myelosuppression, the cytokine release syndrome, and neurologic events. (Funded by Kite Pharma and the Leukemia and Lymphoma Society Therapy Acceleration Program; ZUMA-1 ClinicalTrials.gov number, NCT02348216.)
A BS TR AC T
Axicabtagene Ciloleucel CAR T-Cell Therapy in Refractory Large B-Cell Lymphoma
S.S. Neelapu, F.L. Locke, N.L. Bartlett, L.J. Lekakis, D.B. Miklos, C.A. Jacobson, I. Braunschweig, O.O. Oluwole, T. Siddiqi, Y. Lin, J.M. Timmerman, P.J. Stiff, J.W. Friedberg, I.W. Flinn, A. Goy, B.T. Hill, M.R. Smith, A. Deol, U. Farooq,
P. McSweeney, J. Munoz, I. Avivi, J.E. Castro, J.R. Westin, J.C. Chavez, A. Ghobadi, K.V. Komanduri, R. Levy, E.D. Jacobsen, T.E. Witzig, P. Reagan, A. Bot, J. Rossi,
L. Navale, Y. Jiang, J. Aycock, M. Elias, D. Chang, J. Wiezorek, and W.Y. Go
Original Article
The New England Journal of Medicine Downloaded from nejm.org by WARREN SHLOMCHIK on January 16, 2018. For personal use only. No other uses without permission.
Copyright © 2017 Massachusetts Medical Society. All rights reserved.
ZUMA-1• Axicabtageneciloleucel:CD3ζandCD28intracellulardomains• Phase2with22studycenters(21US)• Allpa-entshad:
– DiffuselargeB-celllymphoma(n=77)– Transformedfollicularlymphomaorprimarymedias-nal(n=24)
• Refractoryorrelapsewithin12monthsofautologoustransplant
Neelapu,S.S.etal,NEJM,377;26.
Results
• Median-metoresponse:1mo(0.8-6.0mo)• Responserateconsistentacrosskeycovariates
– Includingexpression/intensityofCD19anduseoftocilizumabandsteroidsastreatmentofCRS
Atmin6mof/u
HistoricalcontrolORRtosalvage20%(P<0.001)
Neelapu,S.S.etal,NEJM,377;26.
• JCAR017:CD19-directed4-1BBCARTcellproductinadefinedcomposi-onataprecisedoseofCD8andCD4CARTcells.
• Inclusion:R/RDLBCL(includedtransformedfromFL),PMBCL,FLgrade3B,andMantlecelllymphoma
• SecondaryCNSinvolvementandECOG2allowed
CARTcelltherapyforDLBCL:TRANSCEND
Abramson,JS.,ASH2017,ABSTRACT581
DLBCLSummary• Excellentresultswithallproductsgiventhehighrisknatureofthestudysubjects
• Consistentmanufacturing• Somepa-entsdon’tgetcellsduetodiseaseprogression• Differencesintoxicityprofiles
DLBCL–trialsstillongoingWhat’sthebest-mingofCART-celltherapy?
àShouldCARTbegivenearlier(beforeothersecondlinetreatments)?àIsCARTbeqerthanautologoustransplant?
ThesuccessinDLBCLhasledtotrialsinotherlymphomas:
MantlecellFollicular
MarginalZone
26
CARTinCLLGill,S,etal.ASCO2017Abstract#7509
Ø Pilotstudy10pa-entsnotinCRdespite>6monthsibru-nib(allhighrisk)Ø At3months,8evaluableptsinMRD-negCR(89%)allinCRatlastf/uØ 4/6subjhadresolu-onofadenopathyØ CRSin9/10pts(grade3orhigherin1)
27
JClinOncol35,2017(suppl;abstr7509)
24ptswithmedianof5priortherapiesAllwithhigh-riskdiseaseAllhadreceivedibru-nib,19progressedonit
29
1montha_erinfusionORR(CR+PR) 71%MarrowNega-ve 88%
TurtleC,JClinOncol,2017.
SummaryofCARTforCLL
• Earlyresultsareverypromising,eveninheavilypretreatedpa-ents
• Pre-treatmentwithibru-nibmayenhanceCARTexpansionandresponse
31
MyelomaCAR
32
CD19notagoodtarget,notpresentonthebulkoftheMMcellsB-cellMatura-onAn-gen(BCMA)seemsmostpromisingsofar
àsomeBcellsànormalplasmacellsàMMcells**notexpressedonhematopoie-cstemcellsor nonhematologiccells
ASH2017Abstract#505
SafetyandEfficacyofB-cellMaturationAntigen(BCMA)-SpecificChimericAntigenReceptorTCells(CART-BCMA)withCyclophosphamideConditioningforRefractoryMultipleMyeloma
AdamCohen,etal.(UPenn/Novartis)
33
Responses
34
Efficacy(IMWG) TotalResponsesCohort1(n=9) 1sCR,2VGPR,1PR,2MR 6/9Cohort2(n=5) 1PR,1MR 2/5Cohort3(n=7) 1CR,3PR,1MR 5/6
CohenA,etal.ASH2017#505
Conclusion:CART-BCMAfollowingCylymphodepleBonisfeasibleandhasclinicalbenefitinhighly-refractorypaBents
withpoorriskdisease.Efficacylowerat10^7dose.
ASH2017Abstract#740
DurableClinicalResponsesinHeavilyPretreatedPa-entswithRelapsed/RefractoryMul-pleMyeloma:UpdatedResultsfromaMul-centerStudyofbb2121An--BcmaCARTCellTherapy
BerdegaJG,etal.(NCI/BluebirdBio)
35
Multicenter,Phase1Dose-EscalationStudy
• 21pa-ents,median7linespriortherapy• Allhadpriorauto
ORR94%,increasedto100%inpa-entswithhigherdoses
36
BerdejaJG,etal.ASH2017#740
SummaryofMyelomaStudies• Studiesaresmall• Mixedresultswithdifferenttrials• Trialsunderway,alsolookingatdifferenttargetan-gen– SLAMF7– CD138– CD38 – Igκ lightchain
37
FutureofCART
ConBnuedModificaBonoftheCAR-addingcos-mulatorydomains-op-mizinghingeandtransmembranedomain-co-expressionofchemokinereceptortoimprovecelltrafficking-targe-ngtumor-specificAgderivedfromintracellularproteins
39
HowtoEnhancetheTherapeuticBenefit
– Targetmul-plean-gensatone-me
– Movingtoearlierlineoftherapy– Combinewithotherimmunetherapiessuchascheckpointblockade,smallmoleculeinhibitors
40
CLL-IbrutinibEnhancesEfficacy• >5cyclesofibru-nibimprovedexpansionofCTL09• AssociatedwithdecreasedexpressionofPD1
41 FraieqaJA,etal.Blood2016.
PD-1BlockadetoRestoreActivityofCART-Cells
• CARTcellsexhibitupregula-onofPD-L1,CTLA-4,andLAG-3
• CheckpointblockadecanrestoreCARTac-vity– Hasbeendemonstratedinpreclinicalmodelsofsolidtumors– Earlyclinicalresultsinhematologicmalignanciesarepromising
• Combina-onvsbuilt-in42
“Built-In”Strategies:-engineerCARstosecretean--PD-1-knockdownorknockout-dominantnega-vereceptorstrategy
43
PD-1BlockadetoRestoreActivityofCART-Cells
MitigatingToxicity- Incorpora-onofsuicidegenes(eg.iCaspase9)ortaggingsurface
- Iden-fyingpredic-vebiomarkersforneurotoxicityandCRS- IL-1 -NO -Ang-2 -MIP-1β - IL-8 -IL-17A- IL-15-VWF -MCP-1 -IL-10 -granzymeB
45
CARTherapyinSolidTumors
46
- Difficulttofindanan-gen
- Lookingatintracellular“neoan-gens”
- SomeTcellreceptor
therapiesareHLA-restricted
WhatAboutTILs?• Thepresenceoftumorinfiltra-nglymphocytes(TIL)inthe
tumormicroenvironmentcorrelateswithimprovedprognosis• AutologousinfusionofTILcanresultindurableresponsesin
somesolidtumors,par-cularlymelanoma• Cellsarecollected,expanded,andre-infused• Alsorequirepre-condi-oning,similartoCART
47
TILinMelanoma
48
3yearOS36%5yearOS29%InthosewithCR:3yearOS100%5yearOS93%
RosenbergSA,etal.ClinCancerRes,2011
OtherThingstoConsider• CARTtherapyisexpensive(hundredsofthousandsperinfusion),needtolookatthebigpicture– Insurancecompaniesscramblingtofigureoutcoverage– Medicareworkingtoincorporatecoverage– Somecompanieshaveassistanceprograms– Clinicaltrialsalsoprovideaccess– Earlycost-effec-venessanalysissuggeststhebenefitmightbe
worththecost(QALY)
50
• Onlyspecializedcenterscanadministeràlimitsaccess,butnecessaryforsafety
• Requiresteamefforttoensuresafety àmusthavetrainednurses,variousphysiciansallworkingtogether
51
OtherThingstoConsider
CARTClinicalTrials
1. R/RFollicular/MarginalZoneLymphoma2. R/RDiffuseLargeB-cellLymphoma(DLBCL)3. FirstRelapseDLBCLAutovs.CART4. FirstRelapseDLBCLTransplantIneligible5. R/RCLL6. Myeloma
52
CommercialCART
Yescarta®(axicabtageneciloleucel)Kymriah™(-sagenlecleucel)JCAR–an-cipatedJanuary2019
53
CellularTherapyinSolidTumorsatUPMC
1. Metasta-cMelanoma2. UvealMelanoma3. HeadandNeckCancer4. CervicalCarcinoma5. TCRforlungcancer
54
AbramsonJS,PalombaML,GordonLI,LunningMA,ArnasonJE,WangM,ForeroA,MaloneyDG,AlbertsonT,GarciaJ,LiD,XieB,andSiddiqiT.HighDurableCRRatesinRelapsed/Refractory(R/R)AggressiveB-NHLTreatedwiththeCD19-DirectedCARTCellProductJCAR017(TRANSCENDNHL001):DefinedComposi-onAllowsforDose-FindingandDefini-onofPivotalCohort.Abstract581.OralPresenta-onASH2017.AliSA,ShiV,MaricI,WangM,StroncekDF,RoseJJ,BrudnoJN,Stetler-StevensonM,FeldmanSA,HansenBG,FellowesVS,HakimFT,GressRE,KochendorferJN.TcellsexpressingananB-B-cellmaturaBonanBgenchimericanBgenreceptorcauseremissionsofmulBplemyeloma.Blood2016128:1688-1700;doi:hqps://doi.org/10.1182/blood-2016-04-711903BerdejaJG,LinY,RajeN,MunshiN,SiegelD,LiedtkeM,JagannathS,MausMV,TurkaA,LamLP,HegeK,MorganRA,PhD8,QuigleyMT,andKochenderferJN.DurableClinicalResponsesinHeavilyPretreatedPa-entswithRelapsed/RefractoryMul-pleMyeloma:UpdatedResultsfromaMul-centerStudyofbb2121An--BcmaCARTCellTherapy.Abstract740.OralPresenta-onASH2017.BuechnerJ,GruppSA,MaudeSL,BoyerM,BiqencourtH,LaetschTW,BaderP,VernerisMR,StefanskiH,MyersGD,QayedM,PulsipherMA,DeMoerlooseB,HiramatsuH,SchlisK,DavisK,Mar-nPL,NemecekE,PetersC,WoodP,TaranT,ThudiumMuellerK,ZhangY,RivesS.GlobalRegistra-onTrialofEfficacyandSafetyofCTL019InPediatricandYoungAdultPa-entswithRelapsed/Refractory(R/R)AcuteLymphoblas-cLeukemia(All):UpdatetoTheInterimAnalysis.Abstract:S476.OralPresenta-onEHA22.CohenAD,GarfallAL,StadtmauerEA,LaceySF,LancasterE,VoglDT,WeissBM,AmbroseDE,NelsonAM,ChenF,PlesaG,KulikovskayaI,GonzalezV,GuptaM,YoungRM,DengelK,O’keefeL,LeS,RichardsonC,IsaacsRE,MelenhorstJJ,LevineBL,JuneCH,andMiloneMC.SafetyandEfficacyofB-CellMatura-onAn-gen(BCMA)-SpecificChimericAn-genReceptorTCells(CART-BCMA)withCyclophosphamideCondi-oningforRefractoryMul-pleMyeloma(MM).Abstract505.OralPresenta-onASH2017FraieqaJA,BeckwithKA,PatelPR,RuellaM,ZhengZ,BarreqDM,LaceySF,MelenhorstJJ,McGe~ganSE,CookDR,ZhangC,XuJ,DoP,HuliqJ,KudchodkarSB,CogdillAP,GillS,PorterDL,WoyachJA,LongM,JohnsonAJ,MaddocksK,MuthusamyN,LevineBL,JuneCH,ByrdJC,MausMV.Ibru-nibenhanceschimerican-genreceptorT-cellengra�mentandefficacyinleukemia.Blood.2016Mar3;127(9):1117-27.doi:10.1182/blood-2015-11-679134.Epub2016Jan26.PubMedPMID:26813675;PubMedCentralPMCID:PMC4778162.GarfallAL,MausMV,HwangWT,LaceySF,MahnkeYD,MelenhorstJJ,ZhengZ,VoglDT,CohenAD,WeissBM,DengelK,KerrND,BaggA,LevineBL,JuneCH,StadtmauerEA.ChimericAn-genReceptorTCellsagainstCD19forMul-pleMyeloma.NEnglJMed.2015Sep10;373(11):1040-7.doi:10.1056/NEJMoa1504542.PubMedPMID:26352815;PubMedCentralPMCID:PMC4646711.
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