Week 1: Hyperlipidemia Flashcards
Atorvastatin
Lipitor
Fluvastatin
Lescol XL
Lovastatin
Mevacor
Pitavastatin
Livalo
Pravastatin
Pravachol
Rosuvastatin
Crestor
Simvastatin
Zocor
Atorvastatin
hyperlipidemia, atherosclerotic cv disease, familial hypercholesterolemia
Atorvastatin MOA
statins are hmg-coa reductase inhibitors, inhibit conversion of hmg-coa to mevalonate, increasing LDL receptors
atorvastatin contraindications
breastfeeding, active liver diseases
Atorvastatin ADR
myopathy, diarrhea, rhabdomyolysis, hepatotoxicity
atorvastatin key PK/PD
short half life (administer at night), most are lipophilic –> higher risk of muscle pain
which 2 statins have a much longer half life than others?
atorvastatin, rosuvastatin
hydrophilic statins
rosuvastatin, pravastatin
atorvastatin DDI
most statins are metabolized by CYP3A4- inhibitors such as azoles and amiodaron and inducers such as phenytoin and rifampin interact
atorvastatin cholesterol impacts
decreases: cholesterol synthesis, total cholesterol, LDL, TG, CRP
increases: LDL receptor expression, HDL
Atorvastatin pleiotropic effects
improved endothelial function, atherosclerotic stabilization, decreased inflammation, inhibition of thrombogenic response
high intensity statins
atorvastatin 40-80 mg
rosuvastatin 20-40 mg
low intensity statins
simvastatin 10mg
pravastatin 10-20 mg
lovastatin 20 mg
fluvastatin 20-40 mg
pitavastatin 1 mg
moderate intensity statins
atorvastatin 10-20 mg
rosuvastatin 5-10 mg
simvastatin 20-40 mg
pravastatin 40-80 mg
lovastatin 40 mg
fluvastatin 80 mg
pitavastatin 2-4 mg
statins metabolized by CYP2C9
fluvastatin, rosuvastatin
statins metabolized by CYP3A4
atorvastatin, fluvastatin, lovastatin, simvastatin
other statin metabolization
rosuvastatin: CYP2C19 and CYP2C9
pitavastatin: glucuronidation
pravastatin: sulfation
lipophilic statins
atorvastatin, fluvastatin, lovastatin, pitavastatin, simvastatin
fasting lipid panel
statin monitoring technique. monitor 4-12 weeks after initiation or therapy change. then monitor 3-12 months as needed
transaminases (ALT,AST)
statin monitoring technique
measures baseline, may measure in patients with symptoms that suggest hepatotoxicity
monitor for new-onset diabetes
to measure statin effects- especially in patients already with pre-diabetes risk
organic anion transporting polypeptide IBI (OATPIBI)
mediates uptake of statins for hepatic metabolism and biliary excretion
c.88G*5 and *15
low activity haplotype that increases statin plasma exposure and increases risk for myalgia
c88G*Ib
high activity haplotype that decreases statin plasma exposure- no clear effect
CPIC guidelines for low functioning haplotype
avoid simvastatin or use lower doses
ezetimibe
cholesterol inhibitor: Zetia
ezetimibe indication
hyperlipidemia, familial hypercholesterolemia
ezetimibe moa
inhibits absorption of cholesterol at brush border of small intestine via niemann-pick CI-like I
ezetimibe contraindications
gallbladder disease, severe hepatic dysfunction
ezetimibe ADR
urti, diarrhea, arthralgia (joint pain), sinusitis, pain in extremities, rhabdomyolysis, hepatotoxicity
ezetimibe key PK/PD
enterohepatic circulation, long half-life (almost a day)
ezetimibe DDI
plasma concentrations are much lower when administered with fibrates or cholestyramine
ezetimibe cholesterol impact
decreases: total cholesterol, LDL (more so with statin), ApoB, TG
increases: LDL
aliocrumab
PCSK-9 inhibitor- praluent
evolocumab
PCKS-9 inhibitor- repatha
PCKS-9 inhibitor indications
hyperlipidemia, familial hypercholesterolemia
PCKS-9 inhibitor MOA
human monoclonal antibody that binds to PCKS9 and increases available LDL receptors
PCKS-9 inhibitor ADR
nasopharyngitis, influenza, urti, injection site rxns, back pain
PCKS-9 inhibitor key PK/PD
subcutaneous injections every 2-4 weeks
PCKS-9 inhibitor impact on cholesterol
decreases: total cholesterol, LDL, ApoB, TG, Lp(a)
increases: HDL
Inclisiran
RNAI inhibitor of PCKS-9- Leqvio
Inclisiran indications
prevention of atherosclerotic cv disease, familial hypercholesterolemia
Inclisiran MOA
small-interfering rna (sirna) LDL-C lowering therapy, blocks PCKS-9 synthesis
Inclisiran contraindications
pregnancy
Inclisiran ADR
injection site rxns, arthralgia
Inclisiran key points
subcutaneous injection into abdomen, upper arm, or thigh once then in 3 months, then q6mo after
cannot be self administered or administered at pharmacy
Inclisiran impact on cholesterol
decreases: LDL
Bempedoic acid
ATP citrate lysase inhibitor- nexletol
bempedoic acid indication
prevention of atherosclerotic cv disease, familial hypercholesterolemia
bempedoic acid MOA
ACL inhibitor- decreases cholesterol synthesis and lowers LDL in blood via upregulation of ldl receptors
bempedoic acid contraindications
pregnancy
bempedoic acid ADR
hyperuricemia –> gout flares with prior history, tendon rupture
bempedoic acid DDI
increases concentrations of pravastatin (max dose=40mg) and simvastatin (max dose = 20mg)
bempedoic acid impact on cholesterol
decreases: LDL (more so with statin)
colesevelam
bile acid sequestrant- welchol
colestipol
bile acid sequestrant- colestid
cholestyramine
bile acid sequestrant- prevalite, questran
colesevelam indications
hyperlipidemia
colesevelam moa
binds with bile acids in the intestine to form insoluble complex eliminated in the feces
colesevelam contraindications
history of bowel obstruction, triglycerides>500mg/dL, hypertriglyceridemia induced pancreatitis
coleselevam ADR
constipation, dyspepsia (indigestion), nausea, pancreatitis, bowel obstruction
coleselevam key PK/PD
drugs do not absorb, excreted in feces
coleselevam DDI
impacts drug absorption for most medications- take 1 hour before or 2 hours after BAS
coleselevam key points
take with food- mix packet in water or swallow tablets with liquid, most need to be started on a low dose and increased
coleselevam impact on cholesterol
decreases: LDL
increases: VLDL (may increase TG)
omega-3 ethyl esters
lovaza
icosapent ethyl
vascepa (omega 3)
omega 3 impact on cholesterol
decreases: TG
increases: HDL, may increase LDL
Fenofibrate
fibric acid- antara, fenoglide
gemfibrozil
lopid
fenofibrate MOA
activate PPARa (peroxisome proliferator activated receptor alpha)- decreases TG, increases LDL particle size which are catabolized rapidly
fenofibrate contraindications
gallbladder disease
fenofibrate ADR
abdominal pain, diarrhea, increased transaminases, hepatotoxicity, rhabdomyolysis (increased risk with statin use)
fenofibrate key PK/PD
gemfibrozil has a much shorter half life than fenofibrate
fenofibrate DDI
increase risk of myopathy with statin use (worse in gemfibrozil)
fenofibrate impact on cholesterol
decreases: TG, LDL (or increases)
increases: HDL, LDL (potentially)
Niacin
antilipemic- niaspan
niacin MOA
`not well defined- decreases synthesis of VLDL and LDL
niacin contraindications
severe hepatic dysfunction, peptic ulcer disease
niacin ADR
flushing, headache, hepatotoxicity, rhabdomyolysis
niacin key points
start at low dose and slowly increase over time to decrease side effects (flushing), avoid alcohol and spicy foods, this is vitamin B3
Niacin impact on cholesterol
decreases: LDL, TG
increases: HDL
those who may not benefit from lipid lowering therapy for primary prevention
1) anyone under the age of 39- unless they have a history of ASCVD, hypercholesterolemia, or LDL levels above 160 mg/dL
2) patients over the age of 75
groups who benefit from lipid lowering therapy for primary prevention
1) all patients with LDL levels greater than or equal to 190 mg/dL
2) patients 40-75 years of age with diabetes
3) patients 40-75 years with LDL levels above 70, but less than 190- without diabetes
high risk ASCVD patients
LDL levels above 190, ASCVD risk score above 7.5%
high risk therapy goals
lower LDL 50% or greater, LDL < 100 mg/dL, non-HDL <103mg/dL
high risk treatment
1) high intensity statin (atorvastatin 40-80. rosuvastatin 20-40)
2) ezetimibe (if less than 25% additional reduction needed) and/or PCSK9 (>25% additional reduction)
3) bempedoic (addition 17% needed) acid or inclisiran (>17% needed- should not be used with PCSK9)
moderate risk patients
patients 40-75 years with diabetes, with LDL 70< and <190, can be high risk based on ASCVD risk
moderate risk treatment goals
LDL lowered 30-49%, LDL <100mg/dL, non HDL < 130
moderate risk treatment plan
1) moderate intensity statin
2)high intensity statin
3) ezetimibe