the$oral$selec+ve$inhibitor$of$nuclear$export$(sine ...*see poster: “selinexor-induced...

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The Oral Selec+ve Inhibitor of Nuclear Export (SINE) Selinexor (KPT=330) Demonstrates Broad and Durable Clinical Ac+vity in Relapsed / Refractory Non Hodgkin’s Lymphoma John Kuruvilla 1 , John C. Byrd 2 , Joseph Flynn 2 , Ramiro Garzon 2 , Pierluigi Porcu 2 , Nina Wagner? Johnston 3 , Lynn Savoie 4 , Richard Stone 5 , Eric Jacobsen 5 , Morten Mau?Sorensen 6 , Peter de Nully Brown 6 , Rachid Baz 7 , Bijal Shal 7 , Ian Flinn 8 , Nashat Gabrail 9 , Vishal KukreT 1 , Rodger Tiedemann 1 , Yosef Landesman 10 , Boris Klebanov 10 , Eran Shacham 10 , Jean?Richard Saint?MarTn 10 , Tracey Marshall 10 , John McCartney 10 , Dilara McCauley 10 , Robert Carlson 10 , Sasha Norori 11 , Michael Savona 10 , Tami Rashal 10 , Mansoor R Mirza 10 , Michael Kauffman 10 , Sharon Shacham 10 (1) Princess Margaret Cancer Center, Toronto, Canada; (2) The Ohio State University, James Cancer Hospital, OH, USA; (3) Washington University School of Medicine, St. Louis, MO, USA; (4) University of Calgary Division of Hematology, Calgary, Canada (5) Dana?Farber Cancer InsTtute, Boston, MA, USA; (6) Dept. of Oncology, Rigshospitalet, Copenhagen, Denmark; (7) H. Lee Moffid Cancer Center & Research InsTtute Inc., Tampa, FL, USA; (8) Sarah Cannon Research InsTtute, Tennessee Oncology, Nashville, TN, USA; (9) Gabrail Cancer Center, Canton, OH; (10) Karyopharm TherapeuTcs Inc, Newton, MA, USA; (11) Ozmosis Research Toronto, Ontario, Canada

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Page 1: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE)$Selinexor$(KPT=330)$Demonstrates$Broad$and$Durable$Clinical$Ac+vity$in$Relapsed$/$Refractory$Non$Hodgkin’s$

Lymphoma$$John$ Kuruvilla1,$ John% C.% Byrd2,% Joseph% Flynn2,% Ramiro% Garzon2,% Pierluigi% Porcu2,% Nina% Wagner?Johnston3,% Lynn%Savoie4,%Richard%Stone5,%Eric% Jacobsen5,%Morten%Mau?Sorensen6,%Peter%de%Nully%Brown6,%Rachid%Baz7,%Bijal%Shal7,% Ian%Flinn8,%Nashat%Gabrail9,%Vishal%KukreT1,%Rodger%Tiedemann1,%Yosef% Landesman10,% Boris% Klebanov10,% Eran% Shacham10,% Jean?Richard% Saint?MarTn10,% Tracey%Marshall10,% John% McCartney10,% Dilara% McCauley10,% Robert% Carlson10,% Sasha% Norori11,% Michael%Savona10,%Tami%Rashal10,%Mansoor%R%Mirza10,%Michael%Kauffman10,%Sharon%Shacham10%%

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(1)%Princess%Margaret%Cancer%Center,%Toronto,%Canada;%%(2)%The%Ohio%State%University,%James%Cancer%Hospital,%OH,%USA;%(3)%Washington%University%School%of%Medicine,%St.%Louis,%MO,%USA;%%(4)%University%of%Calgary%Division%of%Hematology,%Calgary,%Canada%%(5)%Dana?Farber%Cancer%InsTtute,%Boston,%MA,%USA;%%%(6)%Dept.%of%Oncology,%Rigshospitalet,%Copenhagen,%Denmark;%%(7)%H.%Lee%Moffid%Cancer%Center%&%Research%InsTtute%Inc.,%Tampa,%FL,%USA;%%(8)%Sarah%Cannon%Research%InsTtute,%Tennessee%Oncology,%Nashville,%TN,%USA;%%(9)%Gabrail%Cancer%Center,%Canton,%OH;%%(10)%Karyopharm%TherapeuTcs%Inc,%Newton,%MA,%USA;%(11)%Ozmosis%Research%Toronto,%Ontario,%Canada%%%

Page 2: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Presenter$Disclosures$

1"

Research$Support$ Leukemia%and%Lymphoma%Society%US,%Rasch%FoundaTon,%Celgene,%Hoffman%LaRoche,%Karyopharm,%NovarTs%

Consultant$ Hoffman%LaRoche%

Honoraria$ Amgen,%Celgene,%Gilead,%Hoffman%LaRoche,%Janssen,%Lundbeck,%Seadle%GeneTcs%

Scien+fic$Advisory$Board$ Lymphoma%Canada%(Chair)%

Major$Stockholder$ N/A%

Employee,$Speakers$Bureau$ N/A%

Page 3: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Oral$Selinexor$as$Novel$Therapy$for$NHL$

o  ExporTn%1%(XPO1/Crm1)%is%the%major%nuclear%export%protein%with%>200%protein%and%a%few%RNA%cargos%

o  XPO1%is%overexpressed%in%many%hematological%and%solid%tumor%cancers%and%correlates%with%poor%prognosis%or%resistance%to%chemotherapy%

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Poorer$prognosis$in$XPO1$overexpressing$MCL$(Yoshimura et al. (2014) Cancer Sci 105: 795)

XPO1$overexpression$in$DLBCL$cell$lines$and$primary$specimens$(Kuruvilla%et%al.%(2014)%EHA%19th%Annual%Congress)%

XPO1 Overexpression

XPO1 Normal Expression

XPO1 protein expression in 62 primary DLBCL samples

Page 4: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor:$First=in=Class,$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE)$

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Selinexor

o  Novel,%small%molecule%selecTve%inhibitor%of%XPO1%

o  Oral%drug%given%1x,%2x,%or%3%Tmes%per%week%

o  No%known%drug?drug%interacTons%through%CYP450s%

o  Potent%anT?lymphoma%effects%in%vitro%and%in%vivo%in%NHL%models%%

o  AnT?tumor%acTvity%in%ongoing%Phase%I%and%II%studies%in%advanced%hematologic%and%solid%tumors%

Page 5: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

o  Selinexor$interferes$with$ac+vity$of$proteins$known$to$play$cri+cal$roles$in$NHL$

o  Reduces$expression$of$the$proto=oncogene$proteins$c=myc,$Bcl=2,$Bcl=6,$Mdm2,$BTK,$Cyclin$D$and$survivin$for$which$overexpression$correlates$with$poor$prognosis$

o  Blocks$NF=κB$ac+va+on,$which$is$required$for$ABC$DLBCL$cell$survival$$

o  Reac+vates$p53,$for$which$muta+on$is$associated$with$poor$prognosis$

o  Selinexor$shows$robust$an+=cancer$ac+vity$in$mul+ple$preclinical$models$of$NHL,$including$canines$with$spontaneous$lymphoma,$largely$independent$of$genotype$

Selinexor$is$a$Ra+onal$Therapy$for$NHL$

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Page 6: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study$Design$(NCT01607892)$

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Relapsed/Refractory$B=Cell$

MM/WM,$$NHL$$,$CLL$

Relapsed/Refractory$B=Cell$

AML$

MM/WM,$$DLBCL$35$mg/m2$and$60$mg/m2$$

Dose$Escala+on$Cohorts$ Dose$Expansion$Cohorts$

Acute$Myeloblas+c$Leukemia$

T=Cell$Lymphoma$

$Arm$1$

Arm$2$

Arm$3$

ALL$(B=$or$T=Cell)$Arm$4$

Arm$5$CML$(Accelerated/Blast)$

Arm$6$MM$+$Dexamethasone$

DLBCL$(+$375$mg/m2$Rituximab)$Arm$7$

Page 7: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study$Design$•  ObjecTves%(modified%3+3%design)%

–  Primary:%Safety,%tolerability%and%Recommended%Phase%2%Dose%(RP2D)%of%KPT?330;%%

–  Secondary:%PharmacokineTcs%(PK),%pharmacodynamics%(PDn),%anT?tumor%response;%confirmaTon%of%RP2D%of%selinexor%

•  Selinexor%dosing%–  10%doses/cycle%(2?3%doses/week)%or%8%doses/cycle%(twice%weekly)%or%4%doses/

cycle%(once%weekly)%–  Doses%3%mg/m2%–%80%mg/m2%

%•  Major%eligibility%criteria:%%

–  PaTents%(ECOG%≤1)%with%relapsed/refractory%hematologic%tumors%with%no%available%standard%treatments;%No%acTve%CNS%disease%%%

–  Documented%progression%at%study%entry%–  ANC%>1000/µL,%Platelets%>30,000/µL%

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Page 8: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1:$DLT$Criteria$

•  ≥%3%missed%doses%in%28%days%at%target%dose%%•  DisconTnuaTon%of%a%paTent%due%to%a%toxicity%in%Cycle%1%•  Non$Hematologic:%%

–  Grade%≥3%%nausea/vomiTng,%dehydraTon%or%diarrhea%while%taking%opTmal%supporTve%medicaTons%

–  Grade%3%faTgue%≥5%days%while%taking%supporTve%care%%–  Grade%3%AST%or%ALT%elevaTon%lasTng%longer%than%7%days%%

•  Hematologic:%%–  Grade%4%neutropenia%≥7%days%–  Febrile%neutropenia%%–  Grade%≥3%thrombocytopenia%associated%with%bleeding%%%%

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Page 9: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study:$Pa+ent$Characteris+cs$

Characteris+cs$ N*$=$71$

Mean%Age%(Range)% 63%(23%–%79)%

Male%to%Female% 43%:%28%

Mean%Prior%Treatment%Regiments%(Range)% 3%(1–12)%%

ECOG%Performance%Status%(0:1:2)% 24%:%45%:%02%

Non$Hodgkin's$Lymphoma$(NHL)$

?Aggressive%B?Lymphoma%(DLBCL,%Follicular%Grade%3b,%Transformed)%%

DLBCL%N=31,%Trans%N=11,%Follicular%Grade%3b%N=1%%%

?Follicular%Lymphoma%&%Other%Indolent% 10%PaTents%

?Mantle%Cell% 4%PaTents%

?T%Cell%Lymphoma% 5%PaTents%

?Burkid’s%Lymphoma% 1%PaTent%

?Richter’s%TransformaTon$ 8%PaTents%

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*%As%of%1?December?2014%

Page 10: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study:$Doses,$DLT$and$MTD$

*All%paTents%in%Arm%1%(NHL,%CLL,%MM%and%WM)%were%included%for%DLT%evaluaTon%

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!  10$Cohorts$Evaluated:$!  $Doses%Ranging%from%3%–%80%mg/m2%%

%!  3$DLTs*$Have$Been$Seen$(Only$in$10$doses/cycle$schedule):%

!  Dose%Level:%%16.8%mg/m2;%MM%pt%with%Grade%4%thrombocytopenia%%!  Dose%Level:%%23%mg/m2;%FL%pt%with%Grade%4%thrombocytopenia%%!  Dose%Level:%%30%mg/m2;%CLL%pt%with%Grade%2%faTgue,%pt%missed%3%doses%

!  Expansion$Cohort$1%%!  35%mg/m2;%DLBCL%–%MM%–%WM%paTents%%%%

!  Expansion$Cohort$2$$!  60%mg/m2;%DLBCL%paTents%

Page 11: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study:$Drug$Related$AEs$

1"

0 10 20 30 40 50 60

LeukopeniaNeutropenia

AnemiaThrombocytopenia

Hyponatremia

Blurred vision

DehydrationSensory neuropathy

ProteinuriaSyncope

DyspepsiaConfusion

Muscle weaknessConstipation

DizzinessWeight lossDysgeusia

DiarrheaVomitingAnorexia

FatigueNausea

AE incidence (% of pts)

Grade 1Grade 2Grade 3Grade 4

N=67

AEs for ≥ 5% of pts

Page 12: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study:$Common$AEs$By$Cycle$

1"

0 10 20 30 40 50 60 70 80

AnemiaProteinuria

LeukopeniaNeutropenia

Thrombocytopenia

Creatinine increased

Blurred vision

Sensory neuropathyHyperhidrosis

PruitusDyspepsia

Muscle weaknessDizziness

DysgeusiaWeight loss

AnorexiaVomiting

FatigueDiarrheaNausea

AE incidence (% of pts)

Grade 1Grade 2Grade 3Grade 4

N=25

CYCLE 1

0 10 20 30 40 50 60 70 80

AnemiaProteinuria

LeukopeniaNeutropenia

Thrombocytopenia

Creatinine increased

Blurred vision

Sensory neuropathyHyperhidrosis

PruitusDyspepsia

Muscle weaknessDizziness

DysgeusiaWeight loss

AnorexiaVomiting

FatigueDiarrheaNausea

AE incidence (% of pts)

Grade 1Grade 2Grade 3Grade 4

N=25

CYCLE 2

•  Possibly%or%probably%drug?related%AEs%in%the%25%NHL%that%made%it%through%at%least%Cycle%2%•  AEs%(other%than%hematological)%are%substanTally%reduced%ater%Cycle%1%%

Page 13: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

0 10 20 30 40 50 60 70 80 90-100

-80

-60

-40

-20

0

20

40

60

Time (days after first selinexor dose)

Plat

elet

cou

nt

(% c

hang

e fro

m b

asel

ine)

Effect of Selinexor On platelet counts

N=31 NHL pts

0 100 200 300 400-100

-80

-60

-40

-20

0

Baseline platelet count

Plat

elet

cou

nt a

fter o

ne c

ycle

(% c

hang

e fro

m b

asel

ine)

Selinexor-induced change inplatelet count vs baseline count

N=15 NHL pts

AverageChange

Data from pts maintained at a set dose from the start (3-80 mg/m2, QOD x2-3/wk), over the period of platelet count measurement.

Presented by:

Selinexor$Phase$1$Study:$Effects$on$Platelet$Count$

1"

•  Selinexor%induced%~50%%decrease%in%platelet%count%over%the%first%cycle,%without%further%significant%loss%over%subsequent%cycles%

•  Platelet%loss%is%due%to%inhibiTon%of%megakaryocyte%progenitor%maturaTon*%•  Platelet%loss%percentage%was%independent%of%baseline%platelet%count%•  TPO%agonist%or%IL?11%treatment%can%be%effecTve%at%increasing%platelet%count%

*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH 2014

Page 14: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Cycle 1-Dose 7

840 21

N=4/pt

Cycle 2-Dose 7

4 300 21

N=2/pt

Averageinduction

Cycle 3-Dose 7

4 300 21

N=2/pt

Time (hr post dose)

Schedule 2 (QoD, 10 doses/cycle)

0

2

4

6

8

10

12

XPO

1 ex

pres

sion

in le

ukoc

ytes

(F

old

pred

ose

leve

l)

Cycle 1-Dose 1

10

5

6

9

8

5

8 241 42 48

N/pt as indicated

0

1

2

3

4

5

XPO

1 ex

pres

sion

in le

ukoc

ytes

(F

old

pred

ose

leve

l)

Cycle 1-Dose 1

15

12

12

97

8 2440 48

N/pt as indicated

Cycle 1-Dose 5

8

N=2/pt

40

Averageinduction

Time (hr post dose)

Schedule 3 (QoD, 8 doses/cycle)Cycle 1-Dose 6

8

N=2/pt

40

Selinexor$Phase$1$Study:$XPO1$expression$in$PBMCs$

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•  Selinexor%induces%XPO1%gene%expression%in%circulaTng%leukocytes%that%reaches%a%maximal%effect%4%hr%ater%the%first%dose.%

•  Leukocyte%XPO1%inducTon%is%maintained%by%10%QoD%doses/cycle,%but%is%not%maintained%with%8%QoD%doses/cycle%

•  Provides%pharmacodynamic%basis%for%parTal%recovery/beder%tolerability%with%less%intensive%8%QoD%doses/cycle%%

Page 15: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Presented by:

1"

•  Immunohistochemical%assessment%of%DLBCL%tumor%specimens%from%a%paTent%with%a%parTal%response%to%selinexor%%

%•  Increased%apoptosis%(Apoptag/

Cleaved%Casp3)%%%•  ReducTon%in%expression%of%%

NF?κB%and%variety%of%oncoproteins%(BTK,%p?STAT?3,%p?JAK3)%relevant%to%NHL%

Selinexor$Phase$1$Study:$Primary$Tumor$IHC$

KI67%

Follicular)Lymphoma)0401096)PR)49mg/m2)

BCL2%

NF,κB%

BTK%

Cleav.%Casp3

%

STAT

3%(P,S727)%

JAK3

%(P,Y785)%

Predose) Selinexor)314)weeks)

Predose) Selinexor)314)weeks)

DLBCL 040-402 PR 60mg/m2

Apo

ptag

X

PO

1

BTK

STA

T3 (P

-S72

7)

JAK

3 (P

-Y78

5)

STA

T3 (P

-S72

7)

Predose Selinexor 3-4 weeks Predose Selinexor 3-4 weeks

NF-κB

C

leav

. Cas

p3

Presented by:

1"

•  Immunohistochemical%assessment%of%DLBCL%tumor%specimens%from%a%paTent%with%a%parTal%response%to%selinexor%%

%

•  Increased%apoptosis%(Apoptag/Cleaved%Casp3)%%

%

•  ReducTon%in%expression%of%%

NF?κB%and%variety%of%oncoproteins%(BTK,%p?STAT?3,%p?JAK3)%relevant%to%NHL%

Selinexor$Phase$1$Study:$Primary$Tumor$IHC$

Page 16: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study:$Responses$in$Heavily$Pretreated$Pa+ents$with$NHL$$

ORR=Overall%Response%Rate,%CR=Complete%Response,%PR=ParTal%Response,%SD=Stable%Disease,%PD=Progressive%Disease%%1%paTent%is%pending%response;%15%paTents%were%not%evaluable%for%response%(Responses%as%of%1?December?2014)%

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Cancer$Type$ Selinexor$Dose$$(mg/m2)$ N*$ $ORR$(%)$ CR$(%)$ PR$(%)$ SD$(%)$ PD$(%)$

Aggressive$B=NHL$(DLBCL,$FLgrd3b,$Transformed)$

≤$20$ 4$ 1$(25%)$ ==$ 1$(25%)$ 1$(25%)$ 2$(50%)$

20$–$50$ 19$ 7$(37%)$ 4$(21%)$ 3$(16%)$ 5$(26%)$ 7$(37%)$

≥$60$ 10$ 4$(40%)$ ==$ 4$(40%)$ 4$(40%)$ 2$(20%)$

Follicular$&$Other$Indolent$NHL$$

$≤$30$ 4$ ==$ ==$ ==$ 4$(100%)$ ==$

≥$35$ 4$ 2$(50%)$ ==$ 2$(50%)$ 1$(25%)$ 1$(25%)$

Burkim’s$Lymphoma$ ≥$60$ 1$ ==$ ==$ ==$ ==$ 1$(100%)$

Mantle$Cell$Lymphoma$

≤$30$ 2$ 1$(50%)$ ==$ 1$(50%)$ 1$(50%)$ ==$

≥$35$ 1$ ==$ ==$ ==$ ==$ 1$(100%)$

T=Cell$Lymphoma$≤$30$ 2$ 1$(50%)$ ==$ 1$(50%)$ 1$(50%)$ ==$

≥$35$ 1$ 1$(100%)$ 1$(100%)$ ==$ ==$ ==$

Richter’s$Transforma+on$

≤$30$ 3$ 1$(33%)$ ==$ 1$(33%)$ 2$(67%)$ ==$

≥$35$ 1$ 1$(100%)$ ==$ 1$(100%)$ ==$ ==$

TOTAL$ 52$ 19$(37%)$ 5$(10%)$ 14$(27%)$ 19$(37%)$ 14$(27%)$

Page 17: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

-100

-80

-60

-40

-20

0

20

40

60

80130140

Tum

or v

ol. (

max

% c

hang

e fr

om b

asel

ine)

Aggressive LymphomaFollicular LymphomaMantle Cell LymphomaRichter'sTransformationT-cell Lymphoma

-100

-80

-60

-40

-20

0

20

40

60

80130140

Tum

or v

ol. (

max

% c

hang

e fr

om b

asel

ine)

Aggressive LymphomaFollicular LymphomaMantle Cell LymphomaRichter'sTransformationT-cell Lymphoma

Selinexor$Phase$1$Study:$Evaluable$Pa+ents*$Maximal$%$Change$in$Lymph$Node$from$Baseline$

1"

Progressive$Disease$

Par+al$Response$

%%Denotes%paTents%with%PET/CT%confirmed%Complete%Response%%*Excludes%paTents%who%clinically%progressed%(N=11),%withdrew%consent%(N=9),%did%not%have%a%post%treatment%scan%(N=4),%no%disease%quanTficaTon%(N=3),%%or%pending%(N=1)%As%of%1?December?2014%%

N=40$

Page 18: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

0 2 4 6 8 10 12 14 20 24

-100

-80

-60

-40

-20

0

Cycle

Tum

or v

olum

e(%

cha

nge

from

bas

elin

e)

Duration of ResponseMedian DOR = ~ 7 Months (N=19)

(CR by PET SCAN)

PRCR

+

+

++

+

+ remainson study

0 1 2 3 4-60

-40

-20

0

20

40

60

80

100

120

250

270

Cycle

Tum

or v

olum

e(%

cha

nge

from

bas

elin

e)

SD Duration(N=15)

SD

Selinexor$Phase$1$Study:$Dura+on$of$Disease$Control

1"

Page 19: The$Oral$Selec+ve$Inhibitor$of$Nuclear$Export$(SINE ...*See Poster: “Selinexor-Induced Thrombocytopenia Results from the Inhibition of Megakaryocyte …” Abstract No. 1458, ASH

Selinexor$Phase$1$Study:$Responses$Across$Subtypes$of$Relapsed$/$Refractory$DLBCL$

Responses$in$Diffuse$Large$B=Cell$Pa+ents$as$of$1=December=2014$

Type$ N$ DCR$(%)$ ORR$(%)$ CR$(%)$ PR$(%)$ SD$(%)$ PD$(%)$

GCB% 11% 9%(82%)% 4%(36%)% 1%(9%)% 3%(27%)% 5%(45%)% 2%(18%)%

Non%GCB% 5% 4%(80%)% 2%(40%)% 1%(20%)% 1%(20%)% 2%(40%)% 1%(20%)%

Pa+ents$with$“Double$Hit”$DLBCL$as$of$1=December=2014$

Pa+ent$ID$ Best$Response$ %$Reduc+on$in$Lymph$Nodes$ Days$on$Study$ Prior$Therapies$

046% CR$ 73%%(PET%NegaTve)% 429+% CHOP=R,$RICE$

058% PD$ ??% 57% CHOP=R,$RICE$%

072% PR$ ?65%% 214% R=CHOP,$Benda,$RICE,$DHAP=R,$BEAM$

086% SD$ ?45%% 104% CHOP=R,$GDP,$Ibru+nib+Lenalidomide$

DCR=Disease%Control%Rate%(CR+PR+SD),%ORR=Overall%Response%Rate%(CR+PR),%CR=Complete%Response,%PR=ParTal%Response,%SD=Stable%Disease,%PD=Progressive%Disease%(+%paTent%remains%on%study)%

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Subtyping%was%available%for%16%evaluable%paTents%

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Selinexor$Phase$1$Study:$Rituximab$Combo

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!  ARM$7:%PaTents%receive%a%combinaTon%of%selinexor%with%rituximab%%!  Dosing%Scheme%Below:%%%

!  Three%paTents%have%been%enrolled%on%ARM$7%thus%far%%%

!  Cohort%1:%45%mg/m2%selinexor%+%375%mg/m2%rituximab%has%cleared%DLT%evaluaTon%%!  Responses%include%1%ParTal%Response%(55%%ReducTon)%and%2%Progressive%Disease%%

!  Cohort%2:%60%mg/m2%selinexor%+%375%mg/m2%rituximab%is%currently%enrolling%%

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Case$Study:$Pa+ent$040=050:$Refractory$DLBCL$:$Complete$Response$

!  51%year%old%female%–%DLBCL%

!  March%2006%–%Stage%IV%DLBCL%R?CHOPX6%

!  Jan%2010%–%Relapse%Stage%IV%DLBCL%GDPX2%and%Autologous%SCT%–%Maintenance%Rituximab%(NCIC%CTG%LY12%RCT)%

!  April%2011%–%Relapse%in%Neck%–%RadiaTon%

!  Jan%2012%–%Relapse%in%Neck%–%steroids%

!  Feb%2012%–%PD%in%Neck%–%Panabinostat%X6%cycles%RPh2%

!  Jul%2013%–%Relapse%–%steroids%%

Selinexor$Treatment$

!  October%7,%2013,%iniTates%Selinexor%35%mg/m2%%

!  MRI:%74%%reducTon%in%cycles%1%&%2%

!  PET%CT%negaTve%Cycle%12,%:%CR%

%

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Baseline Cycle 12

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Rel/Ref$DLBCL$040=050:$PET$Confirmed$Complete$Response$

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Baseline Cycle 14 Baseline Cycle 14

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Conclusions$

"  Novel,%oral%SINE%selinexor%(KPT?330)%can%safely%be%given%as%monotherapy%to%paTents%with%heavily%pretreated%NHL%

"  Main%toxiciTes:%anorexia,%nausea,%faTgue,%thrombocytopenia%"  Phase%2/3%Recommended%Dose%is%60%mg/m2%BIW%%

"  Selinexor%has%favorable%PK%and%PD%characterisTcs%"  Single?agent%anT?tumor%acTvity%across%all%NHL%types%with%durable%cancer%control%

>9%months;%median%DOR%~%7%months%"  Marked%acTvity%across%GCB,%nonGCB,%and%Double?Hit%DLBCL%"  Further%evaluaTon%of%selinexor%in%NHL%is%currently%enrolling%in%two%separate%Phase%

2%Studies:%%"  DLBCL%–%SADAL:%randomized%study%of%%selinexor%+%low%dose%dexamethasone%

(NCT02227251)$$"  Richter’s%TransformaTon%–%SIRRT:%open%label%study%with%selinexor%monotherapy%

(NCT02138786)$$%

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Acknowledgments$%%%%%%%%%%We%would%like%to%thank:%%–  PaTents%and%their%families%%

–  InvesTgators,%co?invesTgators%and%the%study%teams%at%each%parTcipaTng%center%%

•  Hackensack%University%Hospital,%NJ%%•  Princess%Margaret%Cancer%Centre,%Toronto%%•  Rigshospitalet,%Copenhagen,%Denmark%%•  Moffid%Cancer%Centre,%Tampa%•  Dana%Farber%Cancer%InsTtute,%Boston%

%

The$study$was$sponsored$by$Karyopharm$Therapeu+cs$Inc.$

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•  Gabrail%Cancer%Center%Research,%Ohio%•  Sarah%Cannon%Research%InsTtute,%TN%•  The%Ohio%State%University%%•  Tom%Baker%Cancer%Centre,%Calgary%%•  Washington%University;%St%Louis,%MO%•  Weill%Cornell%University;%New%York%

TM