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Inclisiran and the ORION clinical development
programmeSlide deck kindly donated as an educational resource by:Professor FJ Raal, University of the Witwatersrand, Johannesburg, South Africa
Derick RaalFCP(SA), FRCP, FRCPC, Cert Endo, MMED, PHD
Head, Division of Endocrinology & MetabolismDirector, Carbohydrate and Lipid Metabolism Research UnitFaculty of Health Sciences, University of the Witwatersrand
Inclisiran and the ORION Project
LDL
EndocytosisRecycling of
LDL-R
LDL receptormAb
LDL-R synthesis
Clathrin-coated vesicle
Endoplasmic reticulum
Nucleus �SREBP Hepatocyte Lysosome
EndosomeGolgi apparatus
PCSK9 processing/ex
port siRNA or ASO
m odified from H ovingh G K , et a l. Eur H eart J 2013;34:962-71modified from Hovingh G K, et al. Eur Heart J 2013;34:962-71
Catabolism of LDL, the role of PCSK9 antibody to PCSK9
Study Day
Total AMG 145 (evolocumab)
Free PCSK9
LDL-C
Free
PCS
K9 c
once
ntra
tion
(ng/
mL)
Free
evo
locu
mab
con
cent
ratio
n (n
g/m
L x
0.01
)
Stein EA & Raal FJ Annu. Rev. Med. 2014. 65:417–31.
Pharmacokinetics of PCSK9 monoclonal antibody therapy
0 28 560
50
500
100
300
400
200
14 70 8442
LDL-C M
ean Change (%)150
350
450
250
140
120
100
80
60
40
20
0
160
Reduction in LDL-C values among healthy volunteers in single-dose studies
Stein E . N Engl J M ed 2012;366:1108-18
-60
-50
-40
-30
-20
-10
0
10
20
-70
Mea
n ch
ange
from
bas
elin
e in
LDL-
C (%
)
85 106Study Day
Placebo 50 mg 100 mg 150 mg 250 mg
8443292215118421
Stein E. N Engl J Med 2012;366:1108-18
Subcutaneous administration of Alirocumab
0
-20
-40
-60
-80
LDL-
C (%
cha
nge
from
bas
elin
e)
0 2 4 6 8 10 12Time (weeks)
Model predicted time course of LDL-C after multiple evolocumab doses
Gibbs et al. J Clin Pharm. 2017;57:616
280 mg QM420 mg QM140 mg Q2W
7
Unmet needLDL-C variability common, associated with worse outcomes
1. Ray KK et al. N Engl J Med 2017; 376:1430-14402. Bangalore S et al. JACC 2015; 65: 1539-1548
-6 0
-4 0
-2 0
0
2 0
4 0
6 0
% c
hang
e in
LDL
-C fr
om B
L
Six month percent change in LDL-Camong statin users from starting level1
Increase in death, CV outcomes witheach 1 standard deviation of LDL-C variability2
23%
17% 16%
11%10%
Death Strok e Anyc oronary
ev ent
Any CVev ent
M I
Small interfering RNA (siRNA) targeted to PCSK9 Mechanism of action
RISC = RNA induced silencing complex Whitehead et al. Nat Rev Drug Discov 2009;8:129-38
Inclisiran:
siRNA conjugated to N-acetylgalactosamine
Subcutaneous administration
Targeted delivery to hepatocytes
Third generation with enhanced stablilisation chemistry
Asialoglycoprotein receptor (ASGPR):Highly expressed in hepatocytes only.
High rate of uptake
GalNAc-siRNA conjugates facilitate rapid hepatic uptakeBackground
11
ORION clinical development program overview
ORION-2 & -5 (60 HoFH)Phase II & III
ORION-6 & -7renal & hepatic impaired) PK
ORION-13 (12 HoFH peds)Phase IIIORION-16 (40 HeFH peds)Phase III
ORION-12 TQT
ORION-14 & -15 PK/PD Japan & China
ORION-4(15,000 high risk ASCVD)Phase III
ORION-8Phase III extension
ORION-10(1500 ASCVD)Phase III
ORION-1(500 ASCVD)Phase II
ASCVD or ASCVD risk equivalentsTotal 18,500
ORION-9(400 HeFH)Phase III
ORION-3Phase II extension
HeFH & HoFH
Special populations
ORION-11(1500 ASCVD/RE)Phase III
Clinical & regulatorystrategy
ORION-19 HoFH (8-11)
ORION-20 HeFH (8-11)
12
ORION development program through ORION-12
Clinical & regulatorystrategy
Trials Relevant endpoints Patients selected (number)
Expected start time
Pivotaltrials
ORION-4 Cardiovascular M&M (Phase III) HRASCVD or ASCVD RE (N=15,000) Q2 2018
ORION-5 LDL-C lowering (Phase III) HoFH (N=60) Q2/3 2018
ORION-9 LDL-C lowering (Phase III) HeFH (N=400) Ongoing
ORION-10 LDL-C lowering (US) (Phase III) ASCVD (N=1,500) Ongoing
ORION-11 LDL-C lowering (EU) (Phase III) ASCVD or ASCVD RE (N=1,500) Ongoing
Extension trials
ORION-3 LDL-C lowering (extension of ORION-1)
ASCVD or ASCVD RE or HeFH (N=490)
Ongoing
ORION-8 LDL-C lowering (extension of ORION -9, -10, -11)
ASCVD, ASCVD risk equivalent, HeFH (N=3,460)
Q4 2019
Supportive trials
ORION-1 LDL-C lowering (Phase II) ASCVD or ASCVD RE or HeFH(N=501)
Completed
ORION-2 LDL-C lowering (Phase II) HoFH (N=10) Ongoing
Special populationsstudies
ORION-6 Pharmacokinetics Hepatic impairment (N=24-32) Q2 2018
ORION-7 Pharmacokinetics Renal impairment (N=31) Ongoing
ORION-12 TQT Healthy volunteers (N=200) Q1/2 2018
14
Completed (n=483)
Screening (Day -14 to Day -1)
Randomization (Day 1, n=501)
Treated (n=497)
Day 1 Study drug givenDay 14 1st follow-up visit
Monthly follow-up visitsDay 30
Day 90
Day 180
Day 210 End of study visit
Primary evaluation
Day 360 Extended follow-up
One dose starting regimen
200 mgN=60
PlaceboN=65
500 mgN=65
300 mgN=61
MethodsTrial design
Day 1 Study drug givenDay 14 1st follow-up visit
Monthly follow-up visitsDay 30
Day 90
Day 180
Day 210 End of study visit
Primary evaluation
Day 360 Extended follow-up
Two dose starting regimen
100 mgN=61
PlaceboN=62
300 mgN=61
200 mgN=62
Study drug given
Randomized (n=501)
15
Efficacy: One dose starting regimenClamped PCSK9 knockdown
-8 0
-6 0
-4 0
-2 0
0
20
0 30 60 90 12 0 15 0 18 0 21 0 24 0 27 0
Mea
n pe
rcen
t cha
nge
(±95
% C
I)
Days from first injection
Placebo
200 mg
300 mg
500 mg
End of study if LDL-Cback to baseline
P-value for all comparisons to placebo <0.0001
16
Efficacy: Two dose starting regimenClamped PCSK9 knockdown
-8 0
-6 0
-4 0
-2 0
0
20
0 30 60 90 12 0 15 0 18 0 21 0 24 0 27 0
Mea
n pe
rcen
t cha
nge
(±95
% C
I)
Days from first injection
Placebo
100 mg
200 mg
300 mg
End of study if LDL-Cback to baseline
P-value for all comparisons to placebo <0.0001
17
9 months time adjustedmean 41% reduction
300 mg50.9% reduction
Efficacy: One dose starting regimenRobust, sustained LDL-C reductions – 300 mg optimal
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
10
0 30 60 90 12 0 15 0 18 0 21 0 24 0 27 0
Mea
n p
erce
nt
chan
ge
(±95
% C
I)
Days from first injection
Placebo
200 mg
300 mg
500 mg
300 mg38.4% reduction
P-value for all comparisons to placebo <0.0001
18
9 months time adjustedmean 50% reduction
Efficacy: Two dose starting regimenRobust, sustained LDL-C reductions – optimal start regimen
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
10
0 30 60 90 12 0 15 0 18 0 21 0 24 0 27 0
Mea
n pe
rcen
t cha
nge
(±95
% C
I)
Days from first injection
Placebo
100 mg
200 mg
300 mg
300 mg x255.5% 52.6%
P-value for all comparisons to placebo <0.0001
19
Efficacy: Two dose starting regimenIndividual patient responses (%) at day 180
Mean 52.6%
Max 80.9%
-1 00
-8 0
-6 0
-4 0
-2 0
0
20
40
60
Cha
nge
in L
DL-
C (p
erce
nt)
PlaceboPercent reduction
Inclisiran 300 mgPercent reduction
All patients responded
20
Inclisiran dose 300mg sc Day 1, 90, 270 and 6-monthly Sustained >50% reduction in LDL-C for 6-months
-80
-70
-60
-50
-40
-30
-20
-10
0
10
Q1
Q3
MeanMedian
-80
-70
-60
-50
-40
-30
-20
-10
0
10
Q1
Q3
MeanMedian
Day 90
% C
hang
e in
LD
L-C
from
Bas
elin
e
Time adjusted LDL-C for 6 months = 41%
Day 270 Day 90 Day 270
One dose starting regimen (300 mg) Two dose starting regimen (300 mg)
Time adjusted LDL-C for 6 months = 51%
21
Summary Two 300 mg starting dose regimen for inclisiran selectedNo safety concerns
Optimal dosage 300 mg given twice as starting regimen
• All patients responded with significant LDL-C lowering
• At 6 months, mean LDL-C� of 52.6% (64 mg/dL), and up to 81% (122 mg/dL)
©The Medicines Company 2018 23
ORION: Phase III trialsPivotal Phase III studies to support LDL-C lowering labeling
Study Sites Main inclusion criteria Patients
ORION-11 EU, SA ASCVD (LDL-C >70mg/dL)and risk equivalent patients(LDL-C >100 mg/dL)
1,500
ORION-10 US ASCVD (LDL-C >70 mg/dL) 1,500
ORION-9 US, EU, SA Heterozygous FH 400
ORION-5 US, EU, SA Homozygous FH 60
3,460
©The Medicines Company 2018 24
ORION: Phase III trialsDesign of the ORION-9, -10, -11 studies
Patients 18 month duration
HeFH, ASCVD and/or risk equivalent patients
Age ≥18 yearsHigh intensity statinLDL-C>70 mg/dL, or>100 mg/dL (RE, HeFH)
Inclisiran300 mg
Randomize1:1
l l l l
Placebo
l l l l
Visits 1 m 3 5 9 11 15 17 18
25
ORION-9 ORION-10 ORION-11Male or female subjects ≥ 18 years of age
Male or female subjects ≥ 18 years of age
Male or female subjects ≥ 18 years of age
History of HeFH with a diagnosis of HeFH by genetic testing; and/or a documented history of untreated LDL-C of > 4.9 mmol/L (>190 mg/dL), and a family history of FH, elevated cholesterol or early heart disease may indicate FH
History of ASCVD (CHD, CVD or PAD*)
History of ASCVD (CHD, CVD or PAD*) or ASCVD-risk equivalents (type 2 diabetes, familial hypercholesterolemia, and including subjects whose 10-year risk of a CV event assessed by Framingham Risk Score or equivalent has a target LDL C of < 2.6 mmol/L (< 100 mg/dL).
Stable on a low-fat diet (e.g., NCEP)
N/A N/A
Serum LDL-C ≥ 2.6 mmol/L (≥ 100 mg/dL) at screening
Serum LDL-C ≥ 1.8 mmol/L (≥ 70 mg/dL) at screening
Serum LDL-C ≥ 1.8 mmol/L (≥70 mg/dL) for ASCVD subjects or ≥ 2.6 mmol/L (≥ 100 mg/dL) for ASCVD-risk equivalent subjects at screening
* Coronary heart disease (CHD), Cerebrovascular disease (CVD); Peripheral arterial disease (PAD) [Protocol Appendix A]
ORION-9, ORION-10 and ORION-11Common inclusion criteria
Clinical & regulatorystrategy
26
Elevated triglyceride at screening
Mild and Moderate renal impairment
Maximum tolerated statin and other LLTs
Stable lipid-lower therapies for ≥ 30 days before screening with no planned medication or dose change during study participation
Subjects must be willing and able to give informed consent
ORION-9, ORION-10 and ORION-11Inclusion criteria identical for all studies
Clinical & regulatorystrategy
27
Exclusion criteria are similar to those used in many lipid lowering trials for the last 20 years and reflect the lack of restrictions required for subjects on inclisiran
• Significant medical conditions that will affect the subject participation of the interpretation of the results
• Major adverse cardiovascular event within 3 months prior to randomization• Uncontrolled blood pressure• Active liver disease• Pregnant or women of child bearing potential not using contraception• Male not using acceptable contraception• Alcohol or drug abuse• Patients unsuitable for a clinical trial
ORION-9, ORION-10 and ORION-11Exclusion criteria identical for all studies
Clinical & regulatorystrategy
28
Primary endpoint: • Percentage change in LDL-C from baseline to Day 510
• Time adjusted percentage change in LDL-C from baseline between Day 90 and
Day 540. This is the average percentage change in LDL-C from baseline over
the period between Day 90 and Day 540
Key secondary endpoints: • Absolute change in LDL-C from baseline to Day 510
• Time adjusted absolute change in LDL-C from baseline between Day 90 and
Day 540
• Percentage change from baseline to Day 510 in PCSK9, total cholesterol, ApoB,
and non-HDL-C
ORION-9, ORION-10 and ORION-11 Common study endpoints
Clinical & regulatorystrategy
29
Project ORION-9 ORION-10 ORION-11Protocol # MDCO-PCS-17-03 MDCO-PCS-17-04 MDCO-PCS-17-08
Indication HeFH (Heterozygous Familial Hypercholesterolemia)
ASCVD ASCVD or ASCVD Risk Equivalents (RE)
Phase Phase III Phase III Phase III
Total # of subjects Randomized
482 1561 1617
Total # of sites 54 149 73
Recruitment period 3 months 3 months 3 months
First subject in (consented) 28 NOV 2017 15 DEC 2017 27 OCT 2017
First subject randomized 12 DEC 2017 21 DEC 2017 01 NOV 2017
Last subject In (randomized)
22 FEB 2018 07 MAR 2018 29 JAN 2018
Country/site mix CanadaCzech RepublicDenmarkNetherlands
South Africa SpainSwedenUS
United States Czech RepGermanyHungaryNetherlands
PolandSouth AfricaUKUkraine
Phase III lipid lowering trials overview
Clinical & regulatorystrategy
©The Medicines Company 2018 30
ORION: Phase III trialsReassuring safety and tolerability profile emerging
DSMB review (March 2018)− >2000 patients− Recommended continuation of Phase III studies with no changes
Ongoing review of blinded data (3,660 patients)− Very low incidence of reported mild, transient skin reactions− No reports of LFT or other significant lab abnormalities
©The Medicines Company 2018 31
ORION-2: Phase II HoFHRobust, durable effects in homozygous familial hypercholesterolemia
Asp227Glu/Asp227Glu variantAbsolute LDL-C reduction− 184 mg/dL at day 60− 276 mg/dL at day 120− 242 mg/dL at day 180
Standard dose -80
-60
-40
-20
0
0 30 60 90 120 150 180
Per
cent
cha
nge
Days
LDL-C
PC SK9
©The Medicines Company 2018 32
ORION-5: Phase III HoFHDesign of a 6-month duration efficacy study
Starts 2H 2018 – not on critical path to NDA, separate pediatric programPatients ORION-5 anticipated design
1 – 6 months EOS
6 – 24 months open label extension
Homozygous FHGenetic confirmation
RxHigh dose statinEzetimibe(Plasmapheresis)
Inclisiran300 mg
Inclisiran300 mg
l ll l
l
ConsentRandomize 2:1
Placebo Inclisiran300 mg
l ll l ll
Visits 1 m 3 m 6 m 9 m 12 m 15 m 18 m 21 m
©The Medicines Company 2018 33
ORION-3: Head-to-head versus Repatha®
Assess switching, comparative efficacy, safety and patient preferenceEnd of ORION-1
ORION-3
Year 1 2 3 4
Inclisiran (3) Inclisiran300 mg q180d
l l l l l l l l
Secondconsent
Placebo (1) Evolocumab140 mg q14d
Inclisiran300 mg q180d
llllllllllllllllllllllll l l l l l l
Visits 1 m 3 6 7 9 12 13 15 18 19 21 24 27 30 33 36 39 42 45
©The Medicines Company 2018 34
ORION-3: Head-to-head versus Repatha®
Safety profile similar to evolocumab
Interim safety data (18 April 2018 – 290 inclisiran and 92 evolocumab)− No difference in safety profile between groups− No other safety signals
Patient reported outcomes and efficacy data in 2019
©The Medicines Company 2018 35
ORION-7: Renal functionRenal function does not effect safety or efficacy – no dose adjustmentRenal function group
ORION-3
Calc. creat. clearance 0-48 hours Day 2-60 Day 60-180
Mild (N=8)60-89 mL/min
PK-PDSafety
PDSafety
LDL-CSafety
Moderate (N=8)30-59 mL/min
Severe (N=7)15-29 mL/min
Normal (N=8)≥90 mL/min
©The Medicines Company 2018 36
ORION-7: Renal function
-100
-80
-60
-40
-20
0
0 10 20 30 40 50 60
Per
cen
t ch
ang
e in
PC
SK
9
Days
Norm al
M i ld
M oder ate
Sev ere
Plasma PK over the first 48 hoursExposure with renal dysfunction – as anticipatedInclisiran not detectable in any group after 48 hours
PD effects on PCSK9 not significantly different
Renal function does not effect safety or efficacy – no dose adjustment
Group Cmax ng/mL
AUCh*ng/mL
Normal 421 7,600
Mild 987 11,800
Moderate 897 13,433
Severe 1,756 19,214
Inclisiran clinical trials programDuring 2018, safety data expected to increase 10-fold
Rapid accumulation of safety data
10-fold increase during 2018− 1,700 with 3 doses− 290 with 4 – 5 doses
©The Medicines Company 2018 37
Patient-years exposure to inclisiran
Phase I Phase II End 2018
2,360
23026
38
ORION-4Long term cardiovascular outcomes study
Clinical & regulatorystrategy Study Aims
• To assess the effect of inclisiran on major cardiovascular events
• The study will randomize ≥15,000 participants aged ≥55 years with pre-existing cardiovascular disease between inclisiran sodium 300 mg and matching placebo for a median of about 5 years.
Randomization Visit
Placebo injection (dose givenat screening)
Inclisiran sodium 300 mg
Matching placebo
ScreeningVisit
Run-in period:about 8 weeks
Follow-up visits at about 3 months andthen 6-monthly for a median of 5 years
39
ORION-4Long term cardiovascular outcomes study
Clinical & regulatorystrategy
Primary endpoint:
Composite of major adverse cardiovascular events (MACE), defined as:Coronary (CHD) death;Myocardial infarction;Fatal or non-fatal ischaemic stroke; orUrgent coronary revascularization procedure
Secondary endpoints:
Composite outcome of CHD death or myocardial infarctionCardiovascular death
Inhibition of PCSK9 with Inclisiran is a very promising, and potentially the simplest and most effective, approach to further reducing LDL-C, the cause of atherosclerosis• LDL-C variability within individuals is practically eliminated• Injection burden reduced substantially• Sustained effect between infrequent injections• Opportunity to improve patient adherence
Phase II and the ongoing phase III studies have shown robust long term efficacy with no safety issues
Conclusions
PCSK9 Inhibitor therapy with Inclisiran