evolving new therapies for the prevention of ......evolving new therapies for the prevention of...
TRANSCRIPT
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Evolving new therapies for the
prevention of atherosclerosis:
a glimpse of the near future
G.K. Hovingh MD PhD
Department of Vascular Medicine
AMC Amsterdam
The Netherlands
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Today
BMJ 2013;347:f544
www.chinadaily.com.cn/life/2009-
04/21/content_7698500.htm
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What we know
- CVD major burden
- LDL-C causally related with CVD
- LDL-C goals: the lower the better
- Statins : corner stone in therapy
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Reduction
in MACE statin vs placebo
(%)
Potential for further
risk reduction
-30
0
-100
How well do we do?
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Where do we go?
Reduction
in MACE statin vs placebo
(%)
Potential for further
risk reduction
=
further LDL-C
lowering?
and or
Additional Rx?
-50
0
-100
-30
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A glance at the future…
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Atherosclerosis
• LDL
• HDL
• TG
• Lp(a)
• Inflammation
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Lipid Modifying Drugs
• Cholesterol absorption inhibitors
• Squalene synthase inhibitors (SSI)
• Microsomal triglyceride transfer protein (MTP) inhibitors
• Acyl coenzyme A acyltransferase (ACAT) inhibitors
• Diacylglycerol acyltransferase (DGAT) inhibitors
• Thyroxin receptor agonists
• ApoB mRNA antisense drugs
• PCSK9 antibodies
• ApoA1-based strategies (iv)
• Cholesterol ester transfer protein (CETP) inhibitors
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ApoA-1 based therapy
ApoA1 Mimetics, such as APL-180 Novartis
Full-length ApoA1, such as ApoA1 Cerenis Therapeutics
Pre-Beta HDL, as generated by delipidation, HDL Therapeutics Inc.
Reconstituted HDL, CSL Ltd.
ApoA1 Milano MDCO216, The Medicines Company
Trimeric ApoA1, Borean Pharma and now Roche
RVX-208, as developed by Resverlogix
Fx-5A, as developed by Kinemed Inc.
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HDL epidemiology
Emerging Risk Factors Collaboration, JAMA 2009
302K participants in 68 prospective
studies
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HDL intervention; failuresTorcetrapib, Dalcetrapib, Niacin
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HDL intervention; failuresTorcetrapib, Dalcetrapib, Niacin
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HDL intervention; failuresTorcetrapib, Dalcetrapib, Niacin
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HDL intervention; failuresTorcetrapib, Dalcetrapib, Niacin
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HDL intervention; failuresTorcetrapib, Dalcetrapib, Niacin
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HDL cholesterol remains a
useful marker of MI risk
and
should continue to be
measured routinely to assess
risk
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Correlation in observational
epidemiologic studies
does NOT
equal causation
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Observational
epidemiologyHypothesis Raised
Result of testing of
hypothesis in clinical
trial
PVCs post MI is
associated with
increased risk of
sudden death
Suppression of PVCs
with medicines will
reduce risk of sudden
death
(CAST trial 1989)
Treatment with
antiarrhythmics
suppressed PVCs,
INCREASED risk of
arrhythmic death
Hormone replacement
therapy use is
associated with lower
risk of CVD
HRT will lower risk of
CVD
(HERS, WHI trials)
HRT INCREASED risk
of MI and stroke
Anemia in patients with
T2D and CKD is
associated with
increased risk of CVD
Correcting anemia with
Epo will lower risk of
CVD
(TREAT trial, 2009)
Epogen administration
corrected anemia but
INCREASED the rate of
stroke
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Lipid Modifying Drugs
• Cholesterol absorption inhibitors
• Squalene synthase inhibitors (SSI)
• Microsomal triglyceride transfer protein (MTP) inhibitors
• Acyl coenzyme A acyltransferase (ACAT) inhibitors
• Diacylglycerol acyltransferase (DGAT) inhibitors
• Thyroxin receptor agonists
• ApoB mRNA antisense drugs
• PCSK9 antibodies
• ApoA1-based strategies (iv)
• Cholesterol ester transfer protein (CETP) inhibitors
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CETP inhibitors
Torcetrapib Dalcetrapib Anacetrapib Evacetrapib
HDL +55-70% +30% +140% +50-130%
LDL -15-25% no effect -35% -20-40%
apoA1 +25% +10% +40% +20-50%
lp(a) no effect no effect -40% na
RR increased no effect no effect no effect
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Primary End Point
CV death, MI, stroke, coronary revasc or hospitalization for UA
Sites in North America, Europe and Asia
3 yrs FU
Evacetrapib 130mg
11.000 CVD pts
Placebo
completion 2017
Statin
> 30 days
ACCELERATE
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N=42 placebo + placebo
N=42 TA-8995 1mg + placebo
N=42 TA-8995 2.5mg + placebo
N=42 TA-8995 10mg+ Atorvastatin 20mg
N=42 placebo +Atorvastatin 20mg
N=42 TA-8995 10mg + placebo
N=42 TA-8995 5mg + placebo
N=42 placebo + Rosuvastatin 10mg
N=42 TA-8995 10mg + Rosuvastatin 10mg
Washout/run in treatment 12 weeks FU
TULIP Design
- mild dyslipidemia
- no CVD
- LDL-C 2.5- 4.5
mmol/L
- HDL-C 0.8-1.8
mmol/L
- TG <4.5 mmol/L
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0%
100% 76%
122%
180%
50%
200%
HDL-C %change at 12 weeks
Placebo
TA-8995 (mg/day)
1 2.5 5 10
150%
2%
166%
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0%
-20%
-27%
-34%
-47% -47%
-40%
-60%
LDL-C %change at 12 weeks
Placebo
TA-8995 (mg/day)
1 2.5 5 10
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The CETP history
Annu Rev Med 2014;65:385
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LDL-C is primary target
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Lipid Modifying Drugs
• Cholesterol absorption inhibitors
• Squalene synthase inhibitors (SSI)
• Microsomal triglyceride transfer protein (MTP) inhibitors
• Acyl coenzyme A acyltransferase (ACAT) inhibitors
• Diacylglycerol acyltransferase (DGAT) inhibitors
• Thyroxin receptor agonists
• antisense drugs
• PCSK9 antibodies
• ApoA1-based strategies (iv)
• Cholesterol ester transfer protein (CETP) inhibitors
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GENE
DNA
Antisense
RNA
Protein
Disease
mRNA
Small molecule
Antisense Drug
Antisense drug
DiseaseDisease
Antisense Drug
RNAse
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68
Human ApoB-100Ideal Target
• ApoB-100:
– expressed in liver
– essential for synthesis
and transport of VLDL
and LDL-C
– biologically validated
– Undruggable for small
molecules
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70
Dose Dependent Reduction in
ApoB
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70
Other targets for antisense?
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70
Other targets for antisense?
http://www.isispharm.com/Pipeline/index.htm status 25-09-2014
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Lipid Modifying Drugs
• Cholesterol absorption inhibitors
• Squalene synthase inhibitors (SSI)
• Microsomal triglyceride transfer protein (MTP) inhibitors
• Acyl coenzyme A acyltransferase (ACAT) inhibitors
• Diacylglycerol acyltransferase (DGAT) inhibitors
• Thyroxin receptor agonists
• ApoB mRNA antisense drugs
• PCSK9 antibodies
• ApoA1-based strategies (iv)
• Cholesterol ester transfer protein (CETP) inhibitors
![Page 34: Evolving new therapies for the prevention of ......Evolving new therapies for the prevention of atherosclerosis: a glimpse of the near future G.K. Hovingh MD PhD (g.k.hovingh@amc.uva.nl)](https://reader035.vdocument.in/reader035/viewer/2022071217/6049386d0556806dea2c1d74/html5/thumbnails/34.jpg)
PCSK9; a success story
•Affected family members with:
•Total cholesterol in 90th percentile
•Tendon xanthomas
•CHD
•Early MI
•Stroke
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Role of PCSK9 in the regulation of LDL receptor
expression
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PCSK9 LOF heterozygosity:
impact on lipids and CAD
• LOF, loss of function
• Adapted from Cohen JC, et al. New Engl J Med 2006; 354: 1264–72.
Plasma LDL-C in black subjects (mg/dL)
30
20
10
0
50 100 150 200 250 300
No nonsense mutation
(n=3278)
50th Percentile
PCSK9142X / PCSK9679X
(N=85)
PCSK9142X or PCSK9679XC
HD
(%
)No Yes
p=0.008
8
0
88%
30
20
10
0
50 100 150 200 250 300
Fre
qu
en
cy (
%)
50th Percentile
4
12
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40
PCSK9 inhibitors in development
•EGF-A, epidermal growth factor-like repeat A; IV, intravenous; mAb, monoclonal antibody; SC, subcutaneous; siRNA, small inhibitory RNA
•1http://clinicaltrials.gov/ct2/results?term=REGN727%2F+SAR236553&Search=Search; 2http://clinicaltrials.gov/ct2/results?term=AMG+145&Search=Search; 3http://clinicaltrials.gov/ct2/results?term=PF-04950615&Search=Search; 4http://www.roche.com/irp2q12e-annex.pdf (p.131);
5http://clinicaltrials.gov/ct2/results?term=LY3015014&Search=Search;
•6http://clinicaltrials.gov/ct2/results?term=LGT209&Search=Search; 7http://clinicaltrials.gov/ct2/results?term=ALN-PCS&Search=Search;
•8Shan L, et al. Biochem Biophys Res Commun 2008; 375: 69–73; 9Du F, et al. J Biol Chem 2011; 286: 43054–61 (all accessed August 2013).
Type Compound CompanyPhase of clinical
development
mAb Alirocumab
(REGN7272/SAR236553)1
Sanofi/Regeneron 3
AMG 1452 Amgen 3
RN-316 (PF-04950615)3 Pfizer/Rinat 2 (completed)
RG 76524 Roche/Genentech 2 (on hold)
LY30150145 Eli Lilly 2
LGT2096 Novartis 2 (discontinued)
siRNA ALN-PCS7 Alnylam Pharmaceuticals Phase I (IV formulation)
Pre-clinical (SC formulation)
Mimetic
peptide
EGF-A peptide8 Schering-Plough Pre-clinical
Prodomain and C-terminal
domain interaction
disruption9
Dept. of Cell Biology and Anatomy,
School of Medicine, University of
South Carolina, SC, USA
Pre-clinical
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41
Effects on LDL-C of adding
alirocumab to atorvastatin every 2
weeks
•Reproduced with permission from McKenney JM, et al. J Am Coll Cardiol 2012; 59: 2344–53.
LD
L-C
mean (
±S
E)
%
change f
rom
baselin
e
Baseline Week 2 Week 6 Week 10
0
-70
-50
-40
-60
-10
-80
-20
-30
Week 4 Week 8 Week 12
Placebo (n=31) Alirocumab 50 mg Q2W (n=30)
Alirocumab 100 mg Q2W
(n=31)Alirocumab 150 mg Q2W (n=29)
*p<0.0001 vs placebo
Δ –
5.1%
Δ –39.6%*
Δ –
64.2%*Δ –
72.4%*
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Effects on LDL-C of adding
alirocumab to atorvastatin every 4
weeks
Δ –
47.7%*
Δ –
43.2%*
Baseline Week 2 Week 6 Week 10
0
-70
-50
-40
-60
-10
-80
-20
-30
Week 4 Week 8 Week 12
Δ –5.1%
LD
L-C
mea
n (
±S
E)
% c
ha
ng
e f
rom
baselin
e
Placebo (n=31)
Alirocumab 200 mg Q4W (n=28)
Alirocumab 300 mg Q4W (n=30)
*p<0.0001 vs placebo
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43
Safety summary Alirocumab Phase 2
studies
115651 115662 10033
Safety population Placebo
(n=31)
Rx groups (n;151)
Placebo
(n=31)
Rx groups (n=61)
Placebo
(n=15)
Rx groups (n=62)
Overview of all TEAEs, n (%)
Patients with any TEAE 14 (45.2) 91 (60.3) 19 (61.3) 32 (52.5) 9 (60.0) 50 (80.6)
Patients with any treatment-emergent SAE 1 (3.2) 3 (2.0) 0 (0) 1 (1.6) 1 (6.7) 0 (0)
Patients with any TEAE leading to death 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
Patients with any TEAE or treatment-emergent SAE leading to permanent
treatment discontinuation0 (0) 6 (4.0) 4 (12.9) 1 (1.6) 0 (0) 1 (1.6)
• The most common TEAE was mild injection-site reactions
• No persistent or prevalent liver or skeletal muscle safety signals were noted
• 5 SAEs were reported in 4 patients in active treatment arms, with 1 patient experiencing
2 SAEs (leukocytoclastic vasculitis and subsequent humerus fracture)
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AMG 145 Phase 2 studies: efficacy
1Giugliano RP, et al. Lancet 2012; 380: 2007–17; 2Koren MJ, et al. Lancet 2012; 380: 1995–2006; 3Raal F, et al. Circulation 2012; 126: 2408–17; 4Sullivan D, et al. JAMA 2012; 308: 2497–506.
Data expressed as % change vs placebo (except reference 4: % change vs baseline)
Dose Trial Patient population
LDL-C (%)
ApoB (%)
Lp(a)(%)
TG (%)
140 mgQ2W
LAPLACE-TIMI 571
On stable statin± ezetimibe
-66.1 -56.4 – -33.7
MENDEL2 Monotherapy(no statin)
-47.2 -44.2 -29.3 -12.0
420 mg Q4W
LAPLACE-TIMI 571
On stable statin± ezetimibe
-50.3 -42.0 – -19.4
RUTHERFORD3 Heterozygous FH on stable statin
-56.4 -46.2 -31.5 -19.9
MENDEL2 Monotherapy(no statin)
-52.5 -42.5 -29.2 -3.3
GAUSS4 Statin intolerance(no statin)
-50.7 -42.1 -23.6 -14.2
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AMG 145 Phase 3
programme
http://clinicaltrials.gov/ct2/results?term=amg+145&Search=Search (accessed August 2013).
Study Patient population Participants (N)
MENDEL-21 Monotherapy 600
LAPLACE-22 Combination therapy 1700
RUTHERFORD-23 HeFH 300
TESLA4 and TAUSSIG5 HoFH 67 and 125
GAUSS-26 Statin-intolerant patients 300
FOURIER7 Outcomes study 22,500
DESCARTES8 and OSLER9 Safety study 905 and 1400
GLAGOV10 IVUS study 950
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ODYSSEY ALTERNATIVE (CL1119) N=250
Patients with defined statin intolerance
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100 mg/dL
6 months
ODYSSEY OPTIONS I (CL1110) N=350
Patients not at goal on moderate dose atorvastatin
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100 mg/dL
6 months
ODYSSEY FH II (CL1112) N=250
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100mg/dL
18 months
ODYSSEY HIGH FH (EFC12732) N=105
LDL-C ≥ 160 mg/dL
18 months
12 global phase 3 trials
Including more than 23,500 patients across more than 2,000 study centers
HeFH population HC in high CV risk population Additional populations
ODYSSEY FH I (EFC12492) N=471
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100mg/dL
18 months
ODYSSEY LONG TERM (LTS11717) N=2,100
LDL-C ≥ 70 mg/dL
18 months
ODYSSEY COMBO I (EFC11568) N=306
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100 mg/dL
12 months
ODYSSEY MONO (EFC11716) N=100
Patients on no background LMTs
LDL-C ≥ 100 mg/dL
6 months
ODYSSEY OPTIONS II (CL1118) N=300
Patients not at goal on moderate dose rosuvastatin
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100 mg/dL
6 monthsODYSSEY OUTCOMES (EFC11570) N=18,000
LDL-C ≥ 70 mg/dL
Add-on to max tolerated statin
(± other LMT)
Add-on to max tolerated statin
(± other LMT)
*ODYSSEY COMBO II (EFC11569) N=660
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100 mg/dL
24 months
ODYSSEY CHOICE (CL1308) N=700
LDL-C ≥ 70 mg/dL OR LDL-C ≥ 100 mg/dL
12 months
Alirocumab ODYSSEY Phase 3 program
HC = hypercholesterolemia; LMT = lipid-modifying therapy
*For the ODYSSEY COMBO II other LMT not allowed at entry
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49
How low can we go?
35
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Trials, trials, trials, and nothing but
trials
will tell us whether
- HDL based therapy
and
- further LDL-C lowering,
reduces risk for CVD....