Capital Region Right Care Initiative University of Best ......Jun 11, 2018 · Capital Region Right...
Transcript of Capital Region Right Care Initiative University of Best ......Jun 11, 2018 · Capital Region Right...
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Capital Region Right Care Initiative University of Best Practices
Monday June 11, 2018
Practical News from the World of Molecular Cardiology: Novel Risk Markers and
Therapies for Cardiovascular Prevention
Eveline Stock, MD Crystal Zhou, PharmD Akin Oni-Orisan, PharmD, PhD
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CVD has declined in recent decades
2
Deaths attributable to CVD in US (1910-2015)
Benjamin et al, Circulation 2018
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What is the role of prevention in our field?
• A big component of that is cardiovascular disease prevention
• Are we “hitting a wall” in terms of treating cardiovascular disease? • Small incremental benefits from additional new interventional treatments in
terms of minimizing morbidity and mortality for heart disease …What’s Next?
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“An ounce of prevention is worth a pound of cure “ Benjamin Franklin
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• Great strides in — exercise, quitting smoking, diet management, cholesterol control, blood sugar control, blood pressure control, sleep medicine
• We are educating and empowering a New Generation for awareness and active role in their own future cardiovascular health
• Role of practitioners – Accountability and implementing best practices
What are the“Big areas” of prevention for Atherosclerotic cardiovascular diseases?
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What are the“Big areas” of prevention for Atherosclerotic cardiovascular diseases?
•Undiagnosed conditions: Growing burden • Lots of overlap • Risk factors are similar • A lot still needs to be done, starting with education and early
detection
•Defining people at risk – WHO should be targeted for treatment based on risk, will be a big component of the cardiology of the future
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Molecular Targets for Atheroprotection • First element: Atherogenic Lipoproteins
LDL, VLDL, Lp(a) • Pathogenesis of atherosclerosis – Risk marker • Therapeutic target
• Second element: Inflammation
• Pathogenesis of atherosclerosis – Risk marker – hs-CRP • Novel markers – cytokines (HDL associated) • New therapeutic targets –
• IL-1 (CANTOS trial – Canakinumab) • IL-6 (methotrexate)
• Third Element : Efflux
• Pathogenesis of atherosclerosis • Risk marker - Emerging measurements – Prebeta1 HDL
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First Element: Atherogenic Lipoproteins
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Elevation of LDL
Secondary • Hypothyroidism • Early nephrosis • Cholestasis • Multiple myeloma
Genetic:
• Familial hypercholesterolemia • Ligand-defective apoB100 • PCSK-9 gain of function • Phytosterolemia • LAL-Deficiency - Cholesterol Ester Storage Disease (CESD)
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60 yo F - ↑LDL Poor statin response
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Phytosterolemia
• Rare? autosomal recessive disorder (< 1,000,000). • Gene Defect: ABCG5 and ABCG8 (ATP-binding cassette transporter family) • Expressed intestine and liver – f(x) to limit absorption and promote
excretion of plant sterols (sitosterol, campesterol) • Symptoms :
• high blood cholesterol • tendon xanthomas • premature atherosclerosis • arthritis • enlarged spleen • premature heart disease
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Sitosterolemia Treatment
Effect of ezetimibe on NPC1L1-mediated internalization of cholesterol
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Enzyme replacement therapy
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Emerging lipid-lowering targets for ASCVD
Canadian Journal of Cardiology 33 (2017) 872-882 FIRST ELEMENT: Atherogenic Lipoproteins
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Case example: Apolipoprotein(a) Antisense Oligonucleotides Lipoprotein spectrum
FIRST ELEMENT: Atherogenic Lipoproteins
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Case example: Apolipoprotein(a) Antisense Oligonucleotides Lowering Lp(a)
• There are currently no treatments that selectively target Lp(a) • Therapies that lower Lp(a)
• Extended release niacin • Lipoprotein apheresis • Mipomersen (apo B antisense) • PCSK9 inhibitors • Estrogen
FIRST ELEMENT: Atherogenic Lipoproteins
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Patient Case
71 year-old male • Past Medical History Coronary artery disease (s/p 4vCABG 1998) Peripheral vascular disease (s/p PCI to right leg 2014) Hypertension Hyperlipidemia
• Family History Mother has CAD, stroke, and aortic aneurysm Brother has CAD and hyperlipidemia
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Patient Case Ref. Range 4/15/2016 10:24 8/11/2016 10:11
Cholesterol, Total Latest Ref Range: 125 - 200 mg/dL 178 113 (L)
Triglycerides, serum
Latest Ref Range: <150 mg/dL 168 (H) 95
Cholesterol, HDL Latest Ref Range: > OR = 40 mg/dL 56 71
LDL Cholesterol Latest Ref Range: <130 mg/dL (calc) 88 23
Chol HDL Ratio Latest Ref Range: < OR = 5.0 (calc) 3.2 1.6
Non HDL Cholesterol
Latest Units: mg/dL (calc) 122 42
Lipoprotein (a) Latest Ref Range: <75 nmol/L 543 (H) 237 (H)
LDl/HDL Ratio (External Lab) Latest Units: (calc) 1.6 0.3
2/19/2018 08:38
127
140
67
38
1.9
60
192 (H)
0.6
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Case example: Apolipoprotein(a) Antisense Oligonucleotides ISIS 681257
• ISIS 681257 is an investigational antisense oligonucleotide against apo(a)
• Phase 1 studies demonstrate a selective reduction in Lp(a) by up to ~80% at the highest dose
• Current status: a phase 2 study is underway with an expected completion date of November 2018
FIRST ELEMENT: Atherogenic Lipoproteins
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Lipid therapies for ASCVD
• LDL • RNA-induced silencing complex (RISC) inhibitor • Adenosine triphosphate citrate lyase (ATP-ACL) inhibitor • Acetyl CoA carboxylase (ACC) inhibitors • Microsomal triglyceride transfer protein inhibitor • Antisense oligonucleotide for apo B • PCSK9 inhibitors
• Lp(a) • Antisense oligonucleotide for apo (a)
• TG • Apolipoprotein C-III inhibitors • Selective PPAR alpha modulator • Angiopoietin-like protein 3
FIRST ELEMENT: Atherogenic Lipoproteins
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Second Element: Inflammation
Ridker et al. Circ Res. 2016; 118:145-156
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56 yo M Newly ↑LDL and ↑ hs-CRP
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Emerging anti-inflammatory targets for ASCVD
European Heart Journal (2014) 35, 1782–1791 SECOND ELEMENT: Inflammation
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Dose-dependent effects of canakinumab at 4 months for CRP, IL-6, and fibrinogen among 556 diabetic patients at high risk for vascular disease
Ridker et al. Circ Res. 2016; 118:145-156
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Case example: Interleukin-1 antagonists CANTOS trial: introduction & methods
• Canakinumab is a IL-1b antibody indicated for several rare IL-1b over-expression disorders
• ~10,000 patients with prior heart and hs-CRP levels ≥2 mg/L were randomized to receive one of four treatment groups
• Canakinumab (50 mg, 150 mg, or 300 mg administered SQ every 3 months) or placebo
SECOND ELEMENT: Inflammation
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Case example: Interleukin-1 antagonists CANTOS trial: CRP and lipoprotein results
N Engl J Med 2017; 377:1119-1131 SECOND ELEMENT: Inflammation
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Case example: Interleukin-1 antagonists CANTOS trial: cardiovascular outcomes results
4.5
4.11
3.86 3.9
3.4
3.6
3.8
4
4.2
4.4
4.6
Placebo 50 mg 100 mg 300 mg
Rate
per
100
Per
son-
Year
s
Dose of Canakinumab
Primary end point (median follow-up of 3.7 years)
HR=0.85 P=0.021
N Engl J Med 2017; 377:1119-1131 SECOND ELEMENT: Inflammation
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Anti-inflammatory therapies for ASCVD
• IL-1 • Canakinumab • Anakinra
• TNF and/or IL-6 • Low-dose methotrexate • Etanercept • Tocilizumab
• Multiple targets • Colchicine
• Alternative inflammatory pathways • Lp-PLA2
• P-Selectin • sPLA2
• Ox-LDL
SECOND ELEMENT: Inflammation
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Third Element: Cholesterol Efflux
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Anti-Atherogenic Properties of HDL
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Reverse Cholesterol Transport
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Prebeta 1 -HDL
369,000x
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Association of Prebeta-1 HDL with Coronary Heart Disease and MI
Odds ratios and their 95% confidence intervals are shown for tertiles of prebeta-1 HDL, as percent total apo A-I.
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“Wounded” HDL Inflammatory disorders SAA proteins Clusterin ( Apo J) Diabetes-Glycation
Oxidative stress Schiff base adducts, MDA, others Nitration ( Myeloperoxidase) Proteolysis-Chymase, Serine Proteases, MMPs
Amyloidogenic fragments
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Determinants of HDL Function: HDL-Associated Molecules
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Cytokine expression in whole plasma and HDL fraction Normolipidemic CAD (n=52) vs control subjects (n=69)
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HDL: The Changing Landscape Total HDL cholesterol levels do not reflect risk in many individuals HDL can vary many-folds in its ability to promote efflux The level of prebeta-1 HDL is an independent indicator of the rate of efflux Prebeta-1 HDL is an independent indicator of risk of MI Inflammation is a key factor in the initiation and progression of CAD; HDL are
anti-inflammatory but mechanism is unknown We have detected at least 20 unique molecular species of HDL in human plasma Determinants of function: Emerging roles for HDL associates molecules such as
miRNA and cytokines - Emerging biomarkers of risk – HDL as mediators of inflammatory response - Targeted delivery for novel therapies
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Emerging cholesterol efflux targets for ASCVD
Nature Medicine 18, 1344–1346 (2012) THIRD ELEMENT: Cholesterol Efflux
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Case example: Cholesteryl ester transfer protein inhibitors Dalcetrapib failure
THIRD ELEMENT: Cholesterol Efflux N Engl J Med 2012;367:2089-99.
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Case example: Cholesteryl ester transfer protein inhibitors Anacetrapib failure
Increased HDL by 43 mg/dl
Reduced non-HDL by 17 mg/dl
THIRD ELEMENT: Cholesterol Efflux N Engl J Med 2017; 377:1217-1227
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Cholesterol efflux therapies for ASCVD
• HDL-related • HDL mimetics • Apolipoprotein A-I synthetic peptides • Pre-beta HDL mimic
• Upregulation of macrophage cholesterol efflux • LXR agonists • miR-33 inhibitors
THIRD ELEMENT: Cholesterol Efflux
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Summary of emerging therapies for ASCVD
• There are a variety of therapies across three therapeutic strategies that show great potential to reduce ASCVD
• Lipid-lowering drug targets are furthest along • Inflammation
• The CANTOS trial shows proof-of-concept the cardioprotective effects of anti-inflammation
• Low-dose methotrexate (currently in late clinical trials) • Cholesterol efflux strategies are in early stages
• The field should focus on promoting reverse cholesterol transport rather than simply increasing HDL cholesterol levels
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PCSK9 Inhibitors
https://www.inquisitr.com/2376070/us-food-and-drug-association-approves-repatha-for-high-cholesterol/. Accessed June 8th, 2018.
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PCSK9 Inhibitors
Adverse Drug Reactions • >10%: Respiratory: Nasopharyngitis (6% to 11%) • 1% to 10%: Cardiovascular: Hypertension (3%); Central nervous
system: Dizziness (4%), fatigue (2%); Dermatologic: Skin rash (1%); Gastrointestinal: Gastroenteritis (3% to 6%), nausea (2%); Genitourinary: Urinary tract infection (5%); Hematologic & Oncologic: Bruise (1%); Infection: Influenza (8% to 9%); Local: Injection site reaction (including erythema, pain, bruising: 6%); Neuromuscular & Skeletal: Myalgia (4%); Respiratory: Upper respiratory tract infection (9%), cough (1% to 5%), sinusitis (4%)
• <1%, postmarketing, and/or case reports: Antibody development, decreased LDL cholesterol (<25 mg/dL), hypersensitivity, urticaria
Repatha (evolocumab) [prescribing information]. Thousand Oaks, CA: Amgen; December 2017.
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FOURIER Trial-Primary Endpoint
Primary efficacy end point: composite of cardiovascular death, myocardial infarction, stroke, hospitalization for unstable angina, or coronary revascularization
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ODYSSEY Trial-Primary Endpoint
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Clinic Workflow
PCSK-9 inhibitor is prescribed
PA Team is notified
PA process begins Denial #1
Denial #2 or Peer-to-
Peer
Medication approved!!
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Clinic Workflow
Confirm approval with pharmacy
Call patient to provide
counseling
Patient starts PCSK-9 inhibitor
Lab check after 6-8 weeks (3-4 doses)
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Support Services
• Live nurses • Training videos • Co-pay cards • Needle disposal kits • Medication reminders
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UCSF PCSK9 Inhibitor Population
• N~195 • 45% statin use • Prescribing department
o54% Cardiology or endocrine oOthers: neurology, heart transplant, vascular surgery, nephrology, general
medicine, dermatology, hepatology, ophthalmology, rheumatology, stroke, urology
• Initial chart screen of 10 patients o70% fill rate (4 alirocumab, 3 evolocumab)
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Patient Case
58 year-old Caucasian male • Past Medical History Familial hypercholesterolemia Coronary artery disease (calcium score 998 with most prominent
involvement of the LAD) Hypertension Anxiety
• Family History Father passed away from MI at age 37; had HTN Mother has CAD and T2DM
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Patient Case Ref. Range 2/23/2018 08:58 4/23/2018 16:30
Cholesterol, Total Latest Ref Range: <200 mg/dL 169 181
Triglycerides, serum
Latest Ref Range: <200 mg/dL 75 221 (H)
Cholesterol, HDL Latest Ref Range: >39 mg/dL 77 70
LDL Cholesterol Latest Ref Range: <130 mg/dL 77 67
Chol HDL Ratio Latest Ref Range: <6.0 2.2 2.6
Non HDL Cholesterol
Latest Ref Range: <160 mg/dL 92 111
Lipoprotein (a) Latest Ref Range: <75 nmol/L 242 (H)
Hemoglobin A1c Latest Ref Range: 4.3 - 5.6 PERCENT
5.8 (H)
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Patient Case
Step 1 • PA submitted • Denied
Step 2 • Appeal letter #1 submitted • Denied, patient did not have LDL >100 or LDL >70 AND ASCVD
Step 3 • Appeal letter #2 submitted • Peer to peer medication approved!
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Large spherical
(alpha) HDL
Preβ -1 HDL
A-I
A-I
A-I
Free Cholesterol
CETP Chylos VLDL IDL LDL
De novo synthesis of apo A-I
Liver
Removal and degradation
LCAT
ABCA1 Transporter
Peripheral Cell
PLTP
liver and intestine
SR-BI
PreBeta-1 HDL Metabolism
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Hypertriglyceridemia Increases CHD Risk in Patients with Low HDL-C Levels
Prospective Cardiovascular Münster Study
* Bar represents 5% of subjects in which 25% of CHD events occurred. Assmann G, Schulte H. Am J Cardiol 1992;70:733–737. Copyright ©1992, with permission from Excerpta Medica Inc.
24 31
116
245
0
50
100
150
200
250
≤ 5.0 > 5.0
*
LDL-C/HDL-C ratio
Inci
denc
e pe
r 1,
000
(in
6 ye
ars)
TG < 200 mg/dL TG ≥ 200 mg/dL