preparing for a novel era in cv prevention: where do pcsk9 ... · cv prevention: where do pcsk9...
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Preparing for a Novel Era in
CV Prevention:
Where do PCSK9 Inhibitors Fit
in Lipid Management
Prof. John J.P. Kastelein, MD PhD FESC
Dept. of Vascular Medicine
Academic Medical Center / University of Amsterdam
The Netherlands
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Disclosures
Dr. Kastelein consults with and speaks for biotechnological
as well as pharmaceutical companies that develop
molecules that influence lipoprotein metabolism and / or
inflammation to prevent CVD, including Regeneron,
Sanofi, Amgen, Pfizer, Eli Lilly, Iosis, AstraZeneca, CSL Behring,
Cerenis, Esperion, The Medicines Company, Kowa, Affiris,
UniQure, Madrigal Pharmaceuticals, Akcea Therapeutics, Staten
Biotech, Akarna, Corvidia and Gemphire
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PCSK9: Protein and Function
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PCSK9: The Chaperone
(Binds to the LDLR)
EGFA
domain
PCSK9 LDLR
CHRD
Prodomain
Catalytic
domain
Seidah et al. (2014) Circ Res
Endocytosis
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PCSK9: Target for
Pharmacotherapy?
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SPIRE Phase 3 Bococizumab
Clinical Development
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PCSK9 Inhibitors
7
High risk, high LDL-C
Statin Intolerance
Familial Hypercholesterolemia
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Familial Hypercholesterolemia
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Familial Hypercholesterolemia
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10Ray and Hovingh, Eur Heart J. 2016; 37: 1395-97
Number of Publications on FH per year
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Heterozygous Familial Hypercholesterolemia Patients
are at greater risk from their LDL than other individuals with
similar LDL-C (Khera et al, JACC 2016; 67: 2578)
are rearly diagnosed before they suffer from their first
coronary event at age 44 (Krogh et al, Eur Heart J. 2016; 17: 1398)
have a post-ACS hazard ratio of 3.5 for a secondary event (Nanchen et al, Eur Heart J. 2015; 36: 2438)
are only receiving high-dose statin therapy in 75% of cases (Pijlman et al, Atherosclerosis 2009; 1: 189)
seldom reach the LDL-C guideline target of <70 mg/dl (Nanchen et
al, Circulation 2016; in press)
All of the above leads to their death from a recurent event at a
mean age of 60 (Krogh et al, Eur Heart J. 2016; 17: 1398)
Novel Insights in the Diagnosis and
Management of FH to date.
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PCSK9 Inhibitors in the Management of FH
12
FH I, 78 weeks
Alirocumab, n=323
Placebo, n=163
FH II, 78 weeks
Alirocumab, n=167
Placebo, n=82
HIGH FH, 78 weeks
Alirocumab, n=72
Placebo, n=35
Patients with HeFH
Alirocumab, n=276
Placebo, n=139
SPIRE FH (n=300)
HeFH (genetic diagnosis
or Simon Broome
Criteria),
LDL >70 mg/dl
Alirocumab Bococizumab Evolocumab
In total: 1634 heFH patients
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The RUTHERFORD-2 Study: Evolocumab
Reduction of LDL-C with PCSK9 Inhibition in Heterozygous Familial Hypercholesterolemia Disorder (NCT20110117)
Design: A 12-week, randomized, double-blind, placebo-controlled, multicenter phase 3 study
Objective:To evaluate the efficacy and safety of evolocumab(AMG 145) 140 mg Q2W and 420 mg QM administered subcutaneously in a large cohort of HeFH patients unable to achieve an LDL-C < 100 mg/dL despite statin therapy with or without ezetimibe
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RUTHERFORD-2 Study Design
Screening
Period
with
Placebo
Injection
Evolocumab 140 mg SC Q2W
N = 111a
Placebo SC QM
N = 55
Placebo SC Q2W
N = 55a
Ra
nd
om
iza
tio
n
Day 1 Week 2 Week 4b Week 6b Week 8 Week 10 Week 12 Week 14cMax. 6 weeks
Evolocumab or placebo SC Q2W
Evolocumab or placebo SC QM
Evolocumab 420 mg SC QM
N = 110
En
d o
f S
tud
y
2:2:1:1
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-70
-60
-50
-40
-30
-20
-10
0
10
20
-70
-60
-50
-40
-30
-20
-10
0
10
20
RUTHERFORD-2: Mean % Change in LDL-Ca from Baseline
to the Mean of Weeks 10 and 12, and Week 12 Alone
Weeks 10 and 12
Ad
jus
ted
Me
an
Pe
rcen
t C
ha
ng
e ±
SE
fro
m
Bas
eli
ne
Placebo Q2W (N = 54)
Placebo QM (N = 55)
Evolocumab 140 mg Q2W (N = 110)
Evolocumab 420 mg QM (N = 110)
–1%
–60%b
–61%
2%
–64%
–66%b –60%b –61%b
–1%
5%
–56%–61%
Week 12
Raal et al, Lancet 2014;385:331-40
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0
10
20
30
40
50
60
70
80
90
0
10
20
30
40
50
60
70
80
90
RUTHERFORD-2: LDL-C Goal Achievement
< 70 mg/dL
Pro
po
rtio
n o
f P
ati
en
ts (
%)
2%
67%
80%
2% 2%
68%
2%
63%
Placebo Q2W (N = 54)
Placebo QM (N = 55)
Evolocumab 140 mg Q2W (N = 110)
Evolocumab 420 mg QM (N = 110)
61%b65%b
79%b
66%b
Weeks 10 and 12 Week 12
Raal et al, Lancet 2014;385:331-40
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The Odyssey Program: Alirocumab Efficacy
and Safety in 1257 heFH Patients
17Kastelein, Eur Heart J. 2015; 36: 2996-3003
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18
-43,6
-57,1
5,41,1
-48,8
-55,0
7,1
1,3
-60
-50
-40
-30
-20
-10
0
10
LS
mean
(S
E)
% c
han
ge f
rom
baselin
e t
o W
eek 1
2/W
eek
24 i
n L
DL
-C
Pool of FH I & II studies Pool of LONG TERM (HeFH
patients only) and HIGH FH
Kastelein, Eur Heart J. 2015; 36: 2996-3003
Week 12
Week 24
Alirocumab 75/150 mg Q2W† (n=488)
Week 12
Week 24Placebo (n=244)
Week 12
Week 24Alirocumab 150 mg Q2W (n=346)
Week 12
Week 24Placebo (n=174)
-49.0% -58.1% -56.4%-55.8%
LDL-C Reduction with Alirocumab at Week 24
was Similar in Both Pooled Study Groups
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19
0
20
40
60
80
100
120
140
160
180
0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80
Alirocumab 150 mg Q2W (n=345) Placebo (n=174)
ΔW24†:
-57.1 (2.4)%
versus placebo
(P<0.0001)
LS
mean
LD
L-C
level
(SE
), m
mo
l/L
Study Week
Kastelein, Eur Heart J. 2015; 36: 2996-3003
Mean Calculated LDL-C Levels Pool of LONG TERM (HeFH patients only) and HIGH FH
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20
Week 12
Week 24Alirocumab 75/150 mg Q2W‡ (n=488)
Kastelein, Eur Heart J. 2015; 36: 2996-3003
Odyssey ProgramPool of FH I & II Studies: Goal Achievement
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LDL-C Levels in FH: From a Lethal Disorder
to a Manageable Dislipidemia
21Kastelein, Nat. Rev. Cardiol. 2014; 11:629-31
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Conclusions
22
The current management of heFH can be summarizedby: too little, too late (Hovingh & Kastelein, Circulation2016, in press)
The future looks a lot brighter: both Evolocumab & Alirocumab therapy, on top of statins / ezetimibe, offers goal attainment hitherto impossible