Caduet Drug Information
Generic name: AMLODIPINE AND ATORVASTATIN
Uses of Caduet
- CADUET (amlodipine and atorvastatin) is indicated in patients for whom treatment with both amlodipine and atorvastatin is appropriate. CADUET is a combination of amlodipine besylate, a calcium channel blocker, and atorvastatin calcium, a HMG-CoA-reductase inhibitor (statin), indicated in patients for whom treatment with both amlodipine and atorvastatin is appropriate. Amlodipine is indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions. Amlodipine is indicated for the treatment of Coronary Artery Disease. Atorvastatin is indicated:
- To reduce the risk of: o Myocardial infarction (MI), stroke, revascularization procedures, and angina in adults with multiple risk factors for coronary heart disease (CHD) but without clinically evident CHD. o MI and stroke in adults with type 2 diabetes mellitus with multiple risk factors for CHD but without clinically evident CHD. o Non-fatal MI, fatal and non-fatal stroke, revascularization procedures, hospitalization for congestive heart failure, and angina in adults with clinically evident CHD.
- As an adjunct to diet to reduce low-density lipoprotein (LDL-C) in: o Adults with primary hyperlipidemia. o Adults and pediatric patients aged 10 years and older with heterozygous familial hypercholesterolemia (HeFH).
- As an adjunct to other LDL-C-lowering therapies to reduce LDL-C in adults and pediatric patients aged 10 years and older with homozygous familial hypercholesterolemia.
- As an adjunct to diet for the treatment of adults with: o Primary dysbetalipoproteinemia. o Hypertriglyceridemia. Amlodipine Hypertension Amlodipine is indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes including amlodipine. Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than one drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC). Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly. Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (for example, patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal. Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g., on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy. Amlodipine may be used alone or in combination with other antihypertensive agents. Coronary Artery Disease (CAD) Chronic Stable Angina Amlodipine is indicated for the symptomatic treatment of chronic stable angina. Amlodipine may be used alone or in combination with other antianginal agents. Vasospastic Angina (Prinzmetal’s or Variant Angina) Amlodipine is indicated for the treatment of confirmed or suspected vasospastic angina. Amlodipine may be used as monotherapy or in combination with other antianginal agents. Angiographically Documented CAD In patients with recently documented CAD by angiography and without heart failure or an ejection fraction < 40%, amlodipine is indicated to reduce the risk of hospitalization for angina and to reduce the risk of a coronary revascularization procedure. Atorvastatin Atorvastatin is indicated:
- As an adjunct to other LDL-C-lowering therapies, or alone if such treatments are unavailable, to reduce LDL-C in adults and pediatric patients aged 10 years and older with homozygous familial hypercholesterolemia (HoFH).
- As an adjunct to diet for the treatment of adults with: o Primary dysbetalipoproteinemia o Hypertriglyceridemia
Dosage & Administration of Caduet
- Usual starting dose (mg daily) Maximum dose (mg daily) Amlodipine 5 Start small adults or children, fragile, or elderly patients, or patients with hepatic insufficiency on 2.5 mg once daily. 10 Atorvastatin 10–20 Start patients requiring large LDL-C reduction (> 45%) at 40 mg once daily. 80 CADUET Dosage of CADUET must be individualized on the basis of both effectiveness and tolerance for each individual component in the treatment of hypertension/angina and hyperlipidemia. Select doses of amlodipine and atorvastatin independently. CADUET may be substituted for its individually titrated components. Patients may be given the equivalent dose of CADUET or a dose of CADUET with increased amounts of amlodipine, atorvastatin, or both for additional antianginal effects, blood pressure lowering, or lipid-lowering effect. CADUET may be used to provide additional therapy for patients already on one of its components. CADUET may be used to initiate treatment in patients with hyperlipidemia and either hypertension or angina. Important Dosage Information Take CADUET orally once daily at any time of the day, with or without food. Amlodipine The usual initial antihypertensive oral dosage of amlodipine is 5 mg once daily, and the maximum dose is 10 mg once daily. Pediatric (age > 6 years), small adult, fragile, or elderly patients, or patients with hepatic insufficiency may be started on 2.5 mg once daily and this dose may be used when adding amlodipine to other antihypertensive therapy. Adjust dosage according to blood pressure goals. In general, wait 7 to 14 days between titration steps. Titration may proceed more rapidly, however, if clinically warranted, provided the patient is assessed frequently. Angina The recommended dosage of amlodipine for chronic stable or vasospastic angina is 5–10 mg, with the lower dose suggested in the elderly and in patients with hepatic insufficiency. Most patients will require 10 mg for adequate effect. Coronary Artery Disease The recommended dosage range of amlodipine for patients with CAD is 5–10 mg once daily. In clinical studies, the majority of patients required 10 mg. Pediatrics The effective antihypertensive oral dose of amlodipine in pediatric patients ages 6–17 years is 2.5 mg to 5 mg once daily. Doses in excess of 5 mg daily have not been studied in pediatric patients. Atorvastatin Assess LDL-C when clinically appropriate, as early as 4 weeks after initiating atorvastatin, and adjust the dosage if necessary. Recommended Dosage in Adult Patients The recommended starting dosage of atorvastatin is 10 mg to 20 mg once daily. The dosage range is 10 mg to 80 mg once daily. Patients who require reduction in LDL-C greater than 45% may be started at 40 mg once daily. Recommended Dosage in Pediatric Patients 10 Years of Age and Older with H e FH The recommended starting dosage of atorvastatin is 10 mg once daily. The dosage range is 10 mg to 20 mg once daily. Recommended Dosage in Pediatric Patients 10 Years of Age and Older with HoFH The recommended starting dosage of atorvastatin is 10 mg to 20 mg once daily. The dosage range is 10 mg to 80 mg once daily. Dosage Modifications Due to Drug Interactions Concomitant use of atorvastatin with the following drugs requires dosage modification of atorvastatin. Anti-Viral Medications
- In patients taking saquinavir plus ritonavir, darunavir plus ritonavir, fosamprenavir, fosamprenavir plus ritonavir, elbasvir plus grazoprevir or letermovir, do not exceed atorvastatin 20 mg once daily.
- In patients taking nelfinavir, do not exceed atorvastatin 40 mg once daily. Select Azole Antifungals or Macrolide Antibiotics
- In patients taking clarithromycin or itraconazole, do not exceed atorvastatin 20 mg once daily. For additional recommendations regarding concomitant use of atorvastatin with other anti-viral medications, azole antifungals or macrolide antibiotics,.
| Usual starting dose (mg daily) | Maximum dose (mg daily) | |
| Amlodipine | 5 Start small adults or children, fragile, or elderly patients, or patients with hepatic insufficiency on 2.5 mg once daily ( 2 ). | 10 |
| Atorvastatin | 10–20 Start patients requiring large LDL-C reduction (> 45%) at 40 mg once daily ( 2 ). | 80 |
Side Effects of Caduet
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, the adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. CADUET CADUET (amlodipine/atorvastatin) has been evaluated for safety in 1092 patients in double-blind placebo-controlled studies treated for co-morbid hypertension and dyslipidemia. In general, treatment with CADUET was well tolerated.
For the most part, adverse reactions have been mild or moderate in severity. In clinical trials with CADUET, no adverse reactions peculiar to this combination have been observed. Adverse reactions are similar in terms of nature, severity, and frequency to those reported previously with amlodipine and atorvastatin.
The following information is based on the clinical experience with amlodipine and atorvastatin. Amlodipine Amlodipine has been evaluated for safety in more than 11,000 patients in U.S. and foreign clinical trials. In general, treatment with amlodipine was well tolerated at doses up to 10 mg daily.
Most adverse reactions reported during therapy with amlodipine were of mild or moderate severity. In controlled clinical trials directly comparing amlodipine (N=1730) at doses up to 10 mg to placebo (N=1250), discontinuation of amlodipine because of adverse reactions was required in only about 1.5% of patients and was not significantly different from placebo (about 1%). The most commonly reported side effects more frequent than placebo are dizziness and edema.
The incidence (%) of side effects that occurred in a dose related manner are as follows: Other adverse reactions that were not clearly dose related but were reported at an incidence greater than 1.0% in placebo-controlled clinical trials include the following:, flushing, palpitations, and somnolence appear to be more common in women than in men. The following events occurred in < 1% but > 0.1% of patients treated with amlodipine in controlled clinical trials or under conditions of open trials or marketing experience where a causal relationship is uncertain; they are listed to alert the physician to a possible relationship: Cardiovascular: arrhythmia (including ventricular tachycardia and atrial fibrillation), bradycardia, chest pain, peripheral ischemia, syncope, tachycardia, vasculitis. Central and Peripheral Nervous System: hypoesthesia, neuropathy peripheral, paresthesia, tremor, vertigo.
Gastrointestinal: anorexia, constipation, dysphagia, diarrhea, flatulence, pancreatitis, vomiting, gingival hyperplasia. General: allergic reaction, asthenia, back pain, hot flushes, malaise, pain, rigors, weight gain, weight decrease. Musculoskeletal System: arthralgia, arthrosis, muscle cramps, myalgia.
Psychiatric: sexual dysfunction (male and female), insomnia, nervousness, depression, abnormal dreams, anxiety, depersonalization. Respiratory System: dyspnea, epistaxis. Skin and Appendages: angioedema, erythema multiforme, pruritus, rash, rash erythematous, rash maculopapular.
Special Senses: abnormal vision, conjunctivitis, diplopia, eye pain, tinnitus. Urinary System: micturition frequency, micturition disorder, nocturia. Autonomic Nervous System: dry mouth, sweating increased.
Metabolic and Nutritional: hyperglycemia, thirst. Hemopoietic: leukopenia, purpura, thrombocytopenia. These events occurred in less than 1% in placebo-controlled trials, but the incidence of these side effects was between 1% and 2% in all multiple dose studies.
Amlodipine therapy has not been associated with clinically significant changes in routine laboratory tests. No clinically relevant changes were noted in serum potassium, serum glucose, total TG, TC, HDL-C, uric acid, blood urea nitrogen, or creatinine. Table 2 summarizes adverse reactions, reported in ≥ 2% and at a rate greater than placebo in patients treated with atorvastatin (n=8755), from seventeen placebo-controlled trials.
Table 2. Adverse Reactions Occurring in ≥ 2% in Patients Atorvastatin-Treated with any Dose and Greater than Other adverse reactions reported in placebo-controlled trials include: Body as a Whole: malaise, pyrexia Digestive System: abdominal discomfort, eructation, flatulence, hepatitis, cholestasis Musculoskeletal System: musculoskeletal pain, muscle fatigue, neck pain, joint swelling Metabolic and Nutritional System: transaminases increase, liver function test abnormal, blood alkaline phosphatase increase, creatine phosphokinase increase, hyperglycemia Nervous System: nightmare Respiratory System: epistaxis Skin and Appendages: urticaria Special Senses: vision blurred, tinnitus Urogenital System: white blood cells urine positive. Elevations in Liver Enzyme Tests Persistent elevations in serum transaminases, defined as more than 3 times the ULN and occurring on 2 or more occasions, occurred in 0.7% of patients who received atorvastatin in clinical trials.
The incidence of these abnormalities was mg, respectively. One patient in clinical trials developed jaundice. Increases in liver enzyme tests in other patients were not associated with jaundice or other clinical signs or symptoms.
Upon dose reduction, drug interruption, or discontinuation, transaminase levels returned to or near pretreatment levels without sequelae. Eighteen of 30 patients with persistent liver enzyme elevations continued treatment with a reduced dose of atorvastatin. Elevations of CK (≥ 10 x ULN) were higher in the high-dose atorvastatin group (0.3%) compared to the low-dose atorvastatin group (0.1%).
Elevations of CK (> 10 x ULN) were rare, but were higher in the atorvastatin group (0.1%) compared to placebo (0.0%). Diabetes was reported as an adverse reaction in 6.1% of subjects in the atorvastatin group and 3.8% of subjects in the placebo group. The incidence of fatal hemorrhagic stroke was similar between groups (17 atorvastatin vs. 18 placebo).
The incidence of non-fatal hemorrhagic strokes was significantly greater in the atorvastatin group (38 non-fatal hemorrhagic strokes) as compared to the placebo group (16 non-fatal hemorrhagic strokes). Patients who entered the trial with a hemorrhagic stroke appeared to be at increased risk for hemorrhagic stroke (16% atorvastatin vs. 4% placebo). Adverse Reactions from Clinical Studies of Atorvastatin in Pediatric Patients with HeFH In a 26-week controlled study in pediatric patients with HeFH (ages 10 years to 17 years) (n=140, 31% female; 92% White, 1.6% Black or African American, 1.6% Asian, 4.8% other), the safety and tolerability profile of atorvastatin 10 to 20 mg daily, as an adjunct to diet to reduce total cholesterol, LDL-C, and apo B levels, was generally similar to that of placebo.
Postmarketing Experience
The following adverse reactions have been identified during post-approval use of amlodipine and atorvastatin. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Amlodipine The following postmarketing event has been reported infrequently where a causal relationship is uncertain: gynecomastia.
In postmarketing experience, jaundice and hepatic enzyme elevations (mostly consistent with cholestasis or hepatitis), in some cases severe enough to require hospitalization, have been reported in association with use of amlodipine. Postmarketing reporting has also revealed a possible association between extrapyramidal disorder and amlodipine. Amlodipine has been used safely in patients with chronic obstructive pulmonary disease, well-compensated congestive heart failure, coronary artery disease, peripheral vascular disease, diabetes mellitus, and abnormal lipid profiles.
Atorvastatin Gastrointestinal Disorders: pancreatitis General Disorders: fatigue Hepatobiliary Disorders: fatal and non-fatal hepatic failure Immune System Disorders: anaphylaxis Injury: tendon rupture Musculoskeletal and Connective Tissue Disorders: rhabdomyolysis, myositis. There have been rare reports of immune-mediated necrotizing myopathy associated with statin use. Nervous System Disorders: dizziness, peripheral neuropathy.
There have been rare reports of cognitive impairment (e.g., memory loss, forgetfulness, amnesia, memory impairment, confusion) associated with the use of all statins. Cognitive impairment was generally nonserious, and reversible upon statin discontinuation, with variable times to symptom onset (1 day to years) and symptom resolution (median of 3 weeks). There have been rare reports of new-onset or exacerbation of myasthenia gravis, including ocular myasthenia, and reports of recurrence when the same or a different statin was administered.
Psychiatric Disorders: depression Respiratory Disorders: interstitial lung disease Skin and Subcutaneous Tissue Disorders: angioneurotic edema, bullous rashes (including erythema multiforme, Stevens-Johnson syndrome, and toxic epidermal necrolysis)
| Amlodipine | ||||
|---|---|---|---|---|
| 2.5 mg | 5 mg | 10 mg | Placebo | |
| N=275 | N=296 | N=268 | N=520 | |
| Edema | 1.8 | 3.0 | 10.8 | 0.6 |
| Dizziness | 1.1 | 3.4 | 3.4 | 1.5 |
| Flushing | 0.7 | 1.4 | 2.6 | 0.0 |
| Palpitations | 0.7 | 1.4 | 4.5 | 0.6 |
| Amlodipine (%) | Placebo (%) | |
|---|---|---|
| (N=1730) | (N=1250) | |
| Fatigue | 4.5 | 2.8 |
| Nausea | 2.9 | 1.9 |
| Abdominal Pain | 1.6 | 0.3 |
| Somnolence | 1.4 | 0.6 |
| Adverse Reaction | % Placebo N=7311 | % 10 mg N=3908 | % 20 mg N=188 | % 40 mg N=604 | % 80 mg N=4055 | % Any dose N=8755 |
|---|---|---|---|---|---|---|
| Nasopharyngitis | 8.2 | 12.9 | 5.3 | 7.0 | 4.2 | 8.3 |
| Arthralgia | 6.5 | 8.9 | 11.7 | 10.6 | 4.3 | 6.9 |
| Diarrhea | 6.3 | 7.3 | 6.4 | 14.1 | 5.2 | 6.8 |
| Pain in extremity | 5.9 | 8.5 | 3.7 | 9.3 | 3.1 | 6.0 |
| Urinary tract infection | 5.6 | 6.9 | 6.4 | 8.0 | 4.1 | 5.7 |
| Dyspepsia | 4.3 | 5.9 | 3.2 | 6.0 | 3.3 | 4.7 |
| Nausea | 3.5 | 3.7 | 3.7 | 7.1 | 3.8 | 4.0 |
| Musculoskeletal pain | 3.6 | 5.2 | 3.2 | 5.1 | 2.3 | 3.8 |
| Muscle spasms | 3.0 | 4.6 | 4.8 | 5.1 | 2.4 | 3.6 |
| Myalgia | 3.1 | 3.6 | 5.9 | 8.4 | 2.7 | 3.5 |
| Insomnia | 2.9 | 2.8 | 1.1 | 5.3 | 2.8 | 3.0 |
| Pharyngolaryngeal pain | 2.1 | 3.9 | 1.6 | 2.8 | 0.7 | 2.3 |
Warnings & Cautions for Caduet
Myopathy and Rhabdomyolysis CADUET may cause myopathy (muscle pain, tenderness, or weakness associated with elevated creatine kinase ) and rhabdomyolysis. Acute kidney injury secondary to myoglobinuria and rare fatalities have occurred as a result of rhabdomyolysis in patients treated with statins, including CADUET. Risk Factors for Myopathy Risk factors for myopathy include age 65 years or greater, uncontrolled hypothyroidism, renal impairment, concomitant use with certain other drugs (including other lipid-lowering therapies), and higher CADUET dosage.
Steps to Prevent or Reduce the Risk of Myopathy and Rhabdomyolysis CADUET exposure may be increased by drug interactions due to inhibition of cytochrome P450 enzyme 3A4 (CYP3A4) and/or transporters (e.g., breast cancer resistant protein, organic anion-transporting polypeptide and P-glycoprotein ), resulting in an increased risk of myopathy and rhabdomyolysis. Concomitant use of cyclosporine, gemfibrozil, tipranavir plus ritonavir or glecaprevir plus pibrentasvir with CADUET is not recommended. CADUET dosage modifications are recommended for patients taking certain anti-viral, azole antifungals, or macrolide antibiotic medications.
Cases of myopathy/rhabdomyolysis have been reported with atorvastatin co-administered with lipid modifying doses (> 1 gram/day) of niacin, fibrates, colchicine, and ledipasvir plus sofosbuvir. Consider if the benefit of use of these products outweighs the increased risk of myopathy and rhabdomyolysis. Concomitant intake of large quantities, more than 1.2 liters daily, of grapefruit juice is not recommended in patients taking CADUET.
Discontinue CADUET if markedly elevated CK levels occur or if myopathy is either diagnosed or suspected. Muscle symptoms and CK elevations may resolve if CADUET is discontinued. Temporarily discontinue CADUET in patients experiencing an acute or serious condition at high risk of developing renal failure secondary to rhabdomyolysis (e.g., sepsis; shock; severe hypovolemia; major surgery; trauma; severe metabolic, endocrine, or electrolyte disorders; or uncontrolled epilepsy).
Inform patients of the risk of myopathy and rhabdomyolysis when starting or increasing the CADUET dosage. Instruct patients to promptly report any unexplained muscle pain, tenderness or weakness, particularly if accompanied by malaise or fever.
Immune-Mediated Necrotizing Myopathy There have been rare reports of immune-mediated necrotizing myopathy (IMNM), an autoimmune myopathy, associated with statin use, including reports of recurrence when the same or a different statin was administered. IMNM is characterized by: proximal muscle weakness and elevated serum creatine kinase that persists despite discontinuation of statin treatment; positive anti-HMG-CoA reductase antibody; muscle biopsy showing necrotizing myopathy; and improvement with immunosuppressive agents. Additional neuromuscular and serologic testing may be necessary.
Treatment with immunosuppressive agents may be required. Discontinue CADUET if IMNM is suspected.
Hepatic Dysfunction Increases in serum transaminases have been reported with use of atorvastatin. In most cases, these changes appeared soon after initiation, were transient, were not accompanied by symptoms, and resolved or improved on continued therapy or after a brief interruption in therapy. Persistent increases to more than three times the ULN in serum transaminases have occurred in approximately 0.7% of patients receiving atorvastatin in clinical trials.
There have been rare postmarketing reports of fatal and non-fatal hepatic failure in patients taking statins, including atorvastatin. Patients who consume substantial quantities of alcohol and/or have a history of liver disease may be at increased risk for hepatic injury. Consider liver enzyme testing before atorvastatin initiation and when clinically indicated thereafter.
Atorvastatin is contraindicated in patients with acute liver failure or decompensated cirrhosis. If serious hepatic injury with clinical symptoms and/or hyperbilirubinemia or jaundice occurs, promptly discontinue atorvastatin.
Increased Angina and Myocardial Infarction
Worsening angina and acute myocardial infarction can develop after starting or increasing the dose of amlodipine, particularly in patients with severe obstructive coronary artery disease.
Hypotension
Symptomatic hypotension is possible with use of amlodipine, particularly in patients with severe aortic stenosis. Because of the gradual onset of action, acute hypotension is unlikely.
Increases in HbA1c and Fasting Serum Glucose Levels Increases in HbA1c and fasting serum glucose levels have been reported with statins, including atorvastatin. Optimize lifestyle measures, including regular exercise, maintaining a healthy body weight, and making healthy food choices.
Increased Risk of Hemorrhagic Stroke in Patients on Atorvastatin 80 mg with Recent Hemorrhagic Stroke In a post-hoc analysis of the Stroke Prevention by Aggressive Reduction in Cholesterol Levels (SPARCL) trial where 2365 adult patients, without CHD who had a stroke or Transient Ischemic Attack (TIA) within the preceding 6 months, were treated with atorvastatin 80 mg, a higher incidence of hemorrhagic stroke was seen in the atorvastatin 80 mg group compared to placebo (55, 2.3% atorvastatin vs. 33, 1.4% placebo; HR: p=0.0168). The incidence of fatal hemorrhagic stroke was similar across treatment groups (17 vs. 18 for the atorvastatin and placebo groups, respectively). Some baseline characteristics, including hemorrhagic and lacunar stroke on study entry, were associated with a higher incidence of hemorrhagic stroke in the atorvastatin group.
Consider the risk/benefit of use of atorvastatin 80 mg in patients with recent hemorrhagic stroke.
Drug Interactions with Caduet
Impact of Other Drugs on Amlodipine CYP3A Inhibitors Co-administration with CYP3A inhibitors (moderate and strong) results in increased systemic exposure to amlodipine and may require dose reduction. Monitor for symptoms of hypotension and edema when amlodipine is co-administered with CYP3A inhibitors to determine the need for dose adjustment. CYP3A Inducers No information is available on the quantitative effects of CYP3A inducers on amlodipine.
Blood pressure should be closely monitored when amlodipine is co-administered with CYP3A inducers.
Impact of Amlodipine on Other Drugs Immunosuppressants Amlodipine may increase the systemic exposure of cyclosporine or tacrolimus when co-administered. Frequent monitoring of trough blood levels of cyclosporine and tacrolimus is recommended and adjust the dose when appropriate. Atorvastatin
Drug Interactions that may Increase the Risk of Myopathy and Rhabdomyolysis with Atorvastatin Atorvastatin is a substrate of CYP3A4 and transporters (e.g., OATP1B1/1B3, P-gp, or BCRP). Atorvastatin plasma levels can be significantly increased with concomitant administration of inhibitors of CYP3A4 and transporters. Table 3 includes a list of drugs that may increase exposure to atorvastatin and may increase the risk of myopathy and rhabdomyolysis when used concomitantly and instructions for preventing or managing them.
Table 3. Drug Interactions that may Increase the Risk of Myopathy and Rhabdomyolysis with Atorvastatin Cyclosporine or Gemfibrozil Clinical Impact: Atorvastatin plasma levels were significantly increased with concomitant administration of atorvastatin and cyclosporine, an inhibitor of CYP3A4 and OATP1B1. Intervention: Concomitant use of cyclosporine or gemfibrozil with atorvastatin is not recommended.
Anti-Viral Medications Clinical Impact: Atorvastatin plasma levels were significantly increased with concomitant administration of atorvastatin with many anti-viral medications, which are inhibitors of CYP3A4 and/or transporters (e.g., BCRP, OATP1B1/1B3, P-gp, MRP2, and/or OAT2). Intervention: • Concomitant use of tipranavir plus ritonavir or glecaprevir plus pibrentasvir with atorvastatin is not recommended. • In patients taking lopinavir plus ritonavir, or simeprevir, consider the risk/benefit of concomitant use with atorvastatin. • In patients taking saquinavir plus ritonavir, darunavir plus ritonavir, fosamprenavir, fosamprenavir plus ritonavir, elbasvir plus grazoprevir or letermovir do not exceed atorvastatin 20 mg. • In patients taking nelfinavir, do not exceed atorvastatin 40 mg. • Consider the risk/benefit of concomitant use of ledipasvir plus sofosbuvir with atorvastatin. • Monitor all patients for signs and symptoms of myopathy particularly during initiation of therapy and during upward dose titration of either drug. Select Azole Antifungals or Macrolide Antibiotics Clinical Impact: Atorvastatin plasma levels were significantly increased with concomitant administration of atorvastatin with select azole antifungals or macrolide antibiotics, due to inhibition of CYP3A4 and/or transporters.
Intervention: In patients taking clarithromycin or itraconazole, do not exceed atorvastatin 20 mg.
Drug Interactions that may Decrease Exposure to Atorvastatin Table 4 presents drug interactions that may decrease exposure to atorvastatin and instructions for preventing or managing them. Table 4. Drug Interactions that may Decrease Exposure to Atorvastatin Rifampin Clinical Impact: Concomitant administration of atorvastatin with rifampin, an inducer of cytochrome P450 3A4 and inhibitor of OATP1B1, can lead to variable reductions in plasma concentrations of atorvastatin.
Intervention: Administer atorvastatin and rifampin simultaneously.
Atorvastatin Effects on Other Drugs Table 5 presents atorvastatin's effect on other drugs and instructions for preventing or managing them. Table 5. Atorvastatin Effects on Other Drugs Oral Contraceptives Clinical Impact: Co-administration of atorvastatin and an oral contraceptive increased plasma concentrations of norethindrone and ethinyl estradiol.
Intervention: Consider this when selecting an oral contraceptive for patients taking atorvastatin. Digoxin Clinical Impact: When multiple doses of atorvastatin and digoxin were co-administered, steady state plasma digoxin concentrations increased. Intervention: Monitor patients taking digoxin appropriately.
| Cyclosporine or Gemfibrozil | |
| Clinical Impact: | Atorvastatin plasma levels were significantly increased with concomitant administration of atorvastatin and cyclosporine, an inhibitor of CYP3A4 and OATP1B1 [see Clinical Pharmacology (12.3) ]. Gemfibrozil may cause myopathy when given alone. The risk of myopathy and rhabdomyolysis is increased with concomitant use of cyclosporine or gemfibrozil with atorvastatin. |
| Intervention: | Concomitant use of cyclosporine or gemfibrozil with atorvastatin is not recommended. |
| Anti-Viral Medications | |
| Clinical Impact: | Atorvastatin plasma levels were significantly increased with concomitant administration of atorvastatin with many anti-viral medications, which are inhibitors of CYP3A4 and/or transporters (e.g., BCRP, OATP1B1/1B3, P-gp, MRP2, and/or OAT2) [see Clinical Pharmacology (12.3) ]. Cases of myopathy and rhabdomyolysis have been reported with concomitant use of ledipasvir plus sofosbuvir with atorvastatin. |
| Intervention: | • Concomitant use of tipranavir plus ritonavir or glecaprevir plus pibrentasvir with atorvastatin is not recommended. • In patients taking lopinavir plus ritonavir, or simeprevir, consider the risk/benefit of concomitant use with atorvastatin. • In patients taking saquinavir plus ritonavir, darunavir plus ritonavir, fosamprenavir, fosamprenavir plus ritonavir, elbasvir plus grazoprevir or letermovir do not exceed atorvastatin 20 mg. • In patients taking nelfinavir, do not exceed atorvastatin 40 mg [see Dosage and Administration (2) ]. • Consider the risk/benefit of concomitant use of ledipasvir plus sofosbuvir with atorvastatin. • Monitor all patients for signs and symptoms of myopathy particularly during initiation of therapy and during upward dose titration of either drug. |
| Examples: | Tipranavir plus ritonavir, glecaprevir plus pibrentasvir, lopinavir plus ritonavir, simeprevir, saquinavir plus ritonavir, darunavir plus ritonavir, fosamprenavir, fosamprenavir plus ritonavir, elbasvir plus grazoprevir, letermovir, nelfinavir, and ledipasvir plus sofosbuvir. |
| Select Azole Antifungals or Macrolide Antibiotics | |
| Clinical Impact: | Atorvastatin plasma levels were significantly increased with concomitant administration of atorvastatin with select azole antifungals or macrolide antibiotics, due to inhibition of CYP3A4 and/or transporters [see Clinical Pharmacology (12.3) ]. |
| Intervention: | In patients taking clarithromycin or itraconazole, do not exceed atorvastatin 20 mg [see Dosage and Administration (2) ]. Consider the risk/benefit of concomitant use of other azole antifungals or macrolide antibiotics with atorvastatin. Monitor all patients for signs and symptoms of myopathy particularly during initiation of therapy and during upward dose titration of either drug. |
| Examples: | Erythromycin, clarithromycin, itraconazole, ketoconazole, posaconazole, and voriconazole. |
| Niacin | |
| Clinical Impact: | Cases of myopathy and rhabdomyolysis have been observed with concomitant use of lipid modifying dosages of niacin ( > 1 gram/day niacin) with atorvastatin. |
| Intervention: | Consider if the benefit of using lipid modifying dosages of niacin concomitantly with atorvastatin outweighs the increased risk of myopathy and rhabdomyolysis. If concomitant use is decided, monitor patients for signs and symptoms of myopathy particularly during initiation of therapy and during upward dose titration of either drug. |
| Fibrates (other than Gemfibrozil) | |
| Clinical Impact: | Fibrates may cause myopathy when given alone. The risk of myopathy and rhabdomyolysis is increased with concomitant use of fibrates with atorvastatin. |
| Intervention: | Consider if the benefit of using fibrates concomitantly with atorvastatin outweighs the increased risk of myopathy and rhabdomyolysis. If concomitant use is decided, monitor patients for signs and symptoms of myopathy particularly during initiation of therapy and during upward dose titration of either drug. |
| Colchicine | |
| Clinical Impact: | Cases of myopathy and rhabdomyolysis have been reported with concomitant use of colchicine with atorvastatin. |
| Intervention: | Consider the risk/benefit of concomitant use of colchicine with atorvastatin. If concomitant use is decided, monitor patients for signs and symptoms of myopathy particularly during initiation of therapy and during upward dose titration of either drug. |
| Grapefruit Juice | |
| Clinical Impact: | Grapefruit juice consumption, especially excessive consumption, more than 1.2 liters/daily can raise the plasma levels of atorvastatin and may increase the risk of myopathy and rhabdomyolysis. |
| Intervention: | Avoid intake of large quantities of grapefruit juice, more than 1.2 liters daily, when taking atorvastatin. |
| Rifampin | |
| Clinical Impact: | Concomitant administration of atorvastatin with rifampin, an inducer of cytochrome P450 3A4 and inhibitor of OATP1B1, can lead to variable reductions in plasma concentrations of atorvastatin. Due to the dual interaction mechanism of rifampin, delayed administration of atorvastatin after administration of rifampin has been associated with a significant reduction in atorvastatin plasma concentrations. |
| Intervention: | Administer atorvastatin and rifampin simultaneously. |
| Oral Contraceptives | |
| Clinical Impact: | Co-administration of atorvastatin and an oral contraceptive increased plasma concentrations of norethindrone and ethinyl estradiol [see Clinical Pharmacology (12.3) ]. |
| Intervention: | Consider this when selecting an oral contraceptive for patients taking atorvastatin. |
| Digoxin | |
| Clinical Impact: | When multiple doses of atorvastatin and digoxin were co-administered, steady state plasma digoxin concentrations increased [see Clinical Pharmacology (12.3) ]. |
| Intervention: | Monitor patients taking digoxin appropriately. |
Pregnancy Safety for Caduet
Pregnancy Risk Summary Atorvastatin Discontinue atorvastatin when pregnancy is recognized. Alternatively, consider the ongoing therapeutic needs of the individual patient. Atorvastatin decreases synthesis of cholesterol and possibly other biologically active substances derived from cholesterol; therefore, atorvastatin may cause fetal harm when administered to pregnant patients based on the mechanism of action.
In addition, treatment of hyperlipidemia is not generally necessary during pregnancy. Atherosclerosis is a chronic process and the discontinuation of lipid-lowering drugs during pregnancy should have little impact on the outcome of long-term therapy of primary hyperlipidemia for most patients. Available data from case series and prospective and retrospective observational cohort studies over decades of use with statins in pregnant women have not identified a drug-associated risk of major congenital malformations.
Published data from prospective and retrospective observational cohort studies with atorvastatin use in pregnant women are insufficient to determine if there is a drug-associated risk of miscarriage (see Data ). In animal reproduction studies, no adverse developmental effects were observed in pregnant rats or rabbits orally administered atorvastatin at doses that resulted in up to 30 and 20 times, respectively, the human exposure at the maximum recommended human dose (MRHD) of 80 mg, based on body surface area (mg/m 2 ). In rats administered atorvastatin during gestation and lactation, decreased postnatal growth and development delay were observed at doses ≥ 6 times the MRHD (see Data ).
Amlodipine The limited available data based on postmarketing reports with amlodipine use in pregnant women are not sufficient to inform a drug-associated risk for major birth defects and miscarriage. There are risks to the mother and fetus associated with poorly controlled hypertension in pregnancy (see Clinical Considerations ). In animal reproduction studies, there was no evidence of adverse developmental effects when pregnant rats and rabbits were treated orally with amlodipine maleate during organogenesis at doses approximately 10 and 20-times MRHD, respectively.
However for rats, litter size was significantly decreased (by about 50%) and the number of intrauterine deaths was significantly increased (about 5-fold). Amlodipine has been shown to prolong both the gestation period and the duration of labor in rats at this dose (see Data ). The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.
All pregnancies have a background risk of birth defect, loss or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is respectively. Clinical Considerations Disease-associated maternal and/or embryo/fetal risk Hypertension in pregnancy increases the maternal risk for pre-eclampsia, gestational diabetes, premature delivery, and delivery complications (e.g., need for cesarean section and post-partum hemorrhage).
Hypertension increases the fetal risk for intrauterine growth restriction and intrauterine death. Pregnant women with hypertension should be carefully monitored and managed accordingly. Data Human Data Atorvastatin A Medicaid cohort linkage study of 1152 statin-exposed pregnant women compared to 886,996 controls did not find a significant teratogenic effect from maternal use of statins in the first trimester of pregnancy, after adjusting for potential confounders–including maternal age, diabetes mellitus, hypertension, obesity, and alcohol and tobacco use – using propensity score-based methods.
The relative risk of congenital malformations between the group with statin use and the group with no statin use in the first trimester was 1.07 (95% confidence interval 0.85 to 1.37) after controlling for confounders, particularly pre-existing diabetes mellitus. There were also no statistically significant increases in any of the organ-specific malformations assessed after accounting for confounders. In the majority of pregnancies, statin treatment was initiated prior to pregnancy and was discontinued at some point in the first trimester when pregnancy was identified.
Study limitations include reliance on physician coding to define the presence of a malformation, lack of control for certain confounders such as body mass index, use of prescription dispensing as verification for the use of a statin, and lack of information on non-live births. Animal Data Atorvastatin Was administered to pregnant rats and rabbits during organogenesis at oral doses up to 300 mg/kg/day and 100 mg/kg/day, respectively. Atorvastatin was not teratogenic in rats at doses up to 300 mg/kg/day or in rabbits at doses up to 100 mg/kg/day.
These doses resulted in multiples of about 30 times (rat) or 20 times (rabbit) the human exposure at the MRHD based on surface area (mg/m 2 ). In rats, the maternally toxic dose of 300 mg/kg resulted in increased post-implantation loss and decreased fetal body weight. At the maternally toxic doses of 50 and 100 mg/kg/day in rabbits, there was increased post-implantation loss, and at 100 mg/kg/day fetal body weights were decreased.
Pup development was delayed (rotorod performance at 100 mg/kg/day and acoustic startle at 225 mg/kg/day; pinnae detachment and eye-opening at 225 mg/kg/day). Atorvastatin crosses the rat placenta and reaches a level in fetal liver equivalent to that of maternal plasma. Amlodipine No evidence of teratogenicity or other embryo/fetal toxicity was found when pregnant rats and rabbits were treated orally with amlodipine maleate at doses up to 10 mg amlodipine/kg/day (approximately 10 and 20 times the MRHD based on body surface area, respectively) during their respective periods of major organogenesis.
Pediatric Use of Caduet
Pediatric Use The safety and effectiveness of CADUET have not been established in pediatric populations. The effect of amlodipine on blood pressure in patients less than 6 years of age is not known. Atorvastatin The safety and effectiveness of atorvastatin as an adjunct to diet to reduce LDL-C have been established in pediatric patients 10 years of age and older with HeFH.
Use of atorvastatin for this indication is based on a double-blind, placebo-controlled clinical trial in 187 pediatric patients 10 years of age and older with HeFH. In this limited controlled trial, there was no significant effect on growth or sexual maturation in the males or females, or on menstrual cycle length in females. Use of CADUET for this indication is based on a trial without a concurrent control group in 8 pediatric patients 10 years of age and older with HoFH.
The safety and effectiveness of atorvastatin have not been established in pediatric patients younger than 10 years of age with HeFH or HoFH, or in pediatric patients with other types of hyperlipidemia (other than HeFH or HoFH).
Contraindications for Caduet
- Acute liver failure or decompensated cirrhosis.
- Hypersensitivity to amlodipine, atorvastatin or any excipients in CADUET. Hypersensitivity reactions, including anaphylaxis, angioneurotic edema, erythema multiforme, Stevens-Johnson syndrome, and toxic epidermal necrolysis, have been reported.
- Hypersensitivity to amlodipine, atorvastatin or any excipient in CADUET.
Overdosage Information for Caduet
There is no information on overdosage with CADUET in humans. Amlodipine Overdosage might be expected to cause excessive peripheral vasodilation with marked hypotension and possibly a reflex tachycardia. In humans, experience with intentional overdosage of amlodipine is limited.
Single oral doses of amlodipine maleate equivalent to 40 mg amlodipine/kg and 100 mg amlodipine/kg in mice and rats, respectively, caused deaths. Single oral amlodipine maleate doses equivalent to 4 or more mg amlodipine/kg or higher in dogs (11 or more times the MRHD on a mg/m 2 basis) caused a marked peripheral vasodilation and hypotension. If overdose should occur with amlodipine, initiate active cardiac and respiratory monitoring.
Perform frequent blood pressure measurements. Should hypotension occur, provide cardiovascular support including elevation of the extremities and administration of fluids. If hypotension remains unresponsive to these conservative measures, consider administration of vasopressors (such as phenylephrine) with specific attention to circulating volume and urine output.
As amlodipine is highly protein bound, hemodialysis is not likely to be of benefit. Atorvastatin No specific antidotes for atorvastatin are known. Contact Poison Control (1-800-222-1222) for latest recommendations.
Due to extensive drug binding to plasma proteins, hemodialysis is not expected to significantly enhance atorvastatin clearance.
Clinical Studies of Caduet
Amlodipine for Vasospastic Angina In a double-blind, placebo-controlled clinical trial of 4 weeks duration in 50 patients, amlodipine therapy decreased attacks by approximately 4/week compared with a placebo decrease of approximately 1/week (p < 0.01). Although the study did not show significance on the primary objective of change in coronary luminal diameter as assessed by quantitative coronary angiography, the data suggested a favorable outcome with respect to fewer hospitalizations for angina and revascularization procedures in patients with CAD. CAMELOT enrolled 1318 patients with CAD recently documented by angiography, without left main coronary disease and without heart failure or an ejection fraction < 40%.
The mean duration of follow-up was 19 months. The primary endpoint was the time to first occurrence of one of the following events: hospitalization for angina pectoris, coronary revascularization, myocardial infarction, cardiovascular death, resuscitated cardiac arrest, hospitalization for heart failure, stroke/TIA, or peripheral vascular disease. A total of first events occurred in the amlodipine and placebo groups, respectively, for a hazard ratio of 0.691 (95% CI: 0.540–0.884, p=0.003).
The primary endpoint is summarized in Figure 1 below. The outcome of this study was largely derived from the prevention of hospitalizations for angina and the prevention of revascularization procedures (see Table 8 ). Effects in various subgroups are shown in Figure 2.
In an angiographic substudy (n=274) conducted within CAMELOT, there was no significant difference between amlodipine and placebo on the change of atheroma volume in the coronary artery as assessed by intravascular ultrasound. Figure 1. Kaplan-Meier Analysis of Composite Clinical Outcomes for Amlodipine versus Placebo Figure 2.
Effects on Primary Endpoint of Amlodipine versus Placebo across Sub-Groups Table 8 below summarizes the significant composite endpoint and clinical outcomes from the composites of the primary endpoint. The other components of the primary endpoint including cardiovascular death, resuscitated cardiac arrest, myocardial infarction, hospitalization for heart failure, stroke/TIA, or peripheral vascular disease did not demonstrate a significant difference between amlodipine and placebo. Table 8.
Incidence of Significant Clinical Outcomes for CAMELOT has been compared to placebo in four 8–12 week studies of patients with NYHA Class II/III heart failure, involving a total of 697 patients. In these studies, there was no evidence of worsened heart failure based on measures of exercise tolerance, NYHA classification, symptoms, or left ventricular ejection fraction. In a long-term (follow-up at least 6 months, mean 13.8 months) placebo-controlled mortality/morbidity study of amlodipine 5–10 mg in 1153 patients with NYHA Classes III (n=931) or IV (n=222) heart failure on stable doses of diuretics, digoxin, and ACE inhibitors, amlodipine had no effect on the primary endpoint of the study which was the combined endpoint of all-cause mortality and cardiac morbidity (as defined by life-threatening arrhythmia, acute myocardial infarction, or hospitalization for worsened heart failure), or on NYHA classification, or symptoms of heart failure.
Another study (PRAISE-2) randomized patients with NYHA Class III (80%) or IV (20%) heart failure without clinical symptoms or objective evidence of underlying ischemic disease, on stable doses of ACE inhibitors (99%), digitalis (99%), and diuretics (99%), to placebo (n=827) or amlodipine (n=827) and followed them for a mean of 33 months. There was no statistically significant difference between amlodipine and placebo in the primary endpoint of all-cause mortality (95% confidence limits from 8% reduction to 29% increase on amlodipine). In this double-blind, placebo-controlled trial, patients were treated with antihypertensive therapy (goal BP < 140/90 mm Hg for patients without diabetes; < 130/80 mm Hg for patients with diabetes) and allocated to either atorvastatin 10 mg daily (n=5168) or placebo (n=5137), using a covariate adaptive method which took into account the distribution of nine baseline characteristics of patients already enrolled and minimized the imbalance of those characteristics across the groups.
Patients were followed for a median duration of 3.3 years. The effect of 10 mg/day of atorvastatin on lipid levels was similar to that seen in previous clinical trials. Atorvastatin significantly reduced the rate of coronary events with a relative risk reduction of 36%.
The risk reduction was consistent regardless of age, smoking status, obesity, or presence of renal dysfunction. The effect of atorvastatin was seen regardless of baseline LDL levels. Figure 3.
Effect of Atorvastatin 10 mg/day on Cumulative Incidence of Non-Fatal Myocardial Infarction or Coronary Heart Disease Death (in ASCOT-LLA) Atorvastatin also significantly decreased the relative risk for revascularization procedures by 42% (incidences of 1.4% for atorvastatin and 2.5% for placebo). Although the reduction of fatal and non-fatal strokes did not reach a pre-defined significance level (p=0.01), a favorable trend was observed with a 26% relative risk reduction (incidences of 1.7% for atorvastatin and 2.3% for placebo). There was no significant difference between the treatment groups for death due to cardiovascular causes (p=0.51) or noncardiovascular causes (p=0.17).
No subjects on hemodialysis were enrolled in the trial. The primary endpoint was the occurrence of any of the major cardiovascular events: myocardial infarction, acute CHD death, unstable angina, coronary revascularization, or stroke. Baseline characteristics of subjects were: mean age of 62 years; mean HbA1c 7.7%; median /day on lipid levels was similar to that seen in previous clinical trials.
An effect of atorvastatin was seen regardless of age, sex, or baseline lipid levels. There was no significant difference between the treatment groups for angina, revascularization procedures, and acute CHD death. There were 61 deaths in the atorvastatin group vs. 82 deaths in the placebo group (HR 0.73, p=0.059).
Figure 4. Effect of Atorvastatin 10 mg/day on Time to Occurrence of Major Cardiovascular Event (myocardial infarction, acute CHD death, unstable angina, coronary revascularization, or stroke) in CARDS In the Treating to New Targets Study (TNT), the effect of atorvastatin 80 mg/day vs. atorvastatin 10 mg/day on the reduction in cardiovascular events was assessed in 10,001 subjects (94% White, 81% male, 38% ≥ 65 years) with clinically evident coronary heart disease who had achieved a target LDL-C level < 130 mg/dL after completing an 8-week, open-label, run-in period with atorvastatin 10 mg/day. Subjects were randomly assigned to either 10 mg/day or 80 mg/day of atorvastatin and followed for a median duration of 4.9 years.
The primary endpoint was the time to first occurrence of any of the following major cardiovascular events (MCVE): death due to CHD, non-fatal myocardial infarction, resuscitated cardiac arrest, and fatal and non-fatal stroke. The mean LDL-C, TC, TG, non-HDL, and HDL cholesterol levels at 12 weeks were mg/dL during treatment with 80 mg of atorvastatin and mg/dL during treatment with 10 mg of atorvastatin. The overall risk reduction was consistent regardless of age (< 65, ≥ 65) or sex.
Figure 5. Effect of Atorvastatin 80 mg/day vs. 10 mg/day on Time to Occurrence of Major Cardiovascular Events (TNT) Table 9. Overview of Efficacy Results in TNT 1.67 Of the events that comprised the primary efficacy endpoint, treatment with atorvastatin 80 mg/day significantly reduced the rate of non-fatal, non-procedure related MI and fatal and non-fatal stroke, but not CHD death or resuscitated cardiac arrest (Table 9).
Of the predefined secondary endpoints, treatment with atorvastatin 80 mg/day significantly reduced the rate of coronary revascularization, angina, and hospitalization for heart failure, but not peripheral vascular disease. The reduction in the rate of CHF with hospitalization was only observed in the 8% of patients with a prior history of CHF. There was no significant difference between the treatment groups for all-cause mortality (Table 9).
The proportions of subjects who experienced cardiovascular death, including the components of CHD death and fatal stroke, were numerically smaller in the atorvastatin 80 mg group than in the atorvastatin 10 mg treatment group. The proportions of subjects who experienced noncardiovascular death were numerically larger in the atorvastatin 80 mg group than in the atorvastatin 10 mg treatment group. Figure 3 Figure 4 Figure 5
Atorvastatin for Primary Hyperlipidemia in Adults
Atorvastatin reduces total-C, LDL-C, apo B, and TG, and increases HDL-C in patients with hyperlipidemia (heterozygous familial and nonfamilial) and mixed dyslipidemia. Therapeutic response is seen within 2 weeks, and maximum response is usually achieved within 4 weeks and maintained during chronic therapy. In two multicenter, placebo-controlled, dose-response trials in patients with hyperlipidemia, atorvastatin given as a single dose over 6 weeks significantly reduced total-C, LDL-C, apo B, and TG. (Pooled results are provided in Table 10).
Table 10. Dose Response in Patients with Primary Hyperlipidemia (Adjusted Mean % Change From Baseline) a 5 a Results are pooled from 2 dose-response trials. In three multicenter, double-blind trials in patients with hyperlipidemia, atorvastatin was compared to other statins.
After randomization, patients were treated for 16 weeks with either atorvastatin 10 mg per day or a fixed dose of the comparative agent (Table 11). Table 11. Mean Percentage Change from Baseline at Endpoint (Double-Blind, Randomized, Active-Controlled Trials) Table 11 does not contain data comparing the effects of atorvastatin 10 mg and higher dosage of lovastatin, pravastatin, and simvastatin.
The drugs compared in the trials summarized in the table are not necessarily exchangeable.
Atorvastatin for Hypertriglyceridemia in Adults
The response to atorvastatin in 64 patients with isolated hypertriglyceridemia treated across several clinical trials is shown in the table below (Table 12). For the atorvastatin-treated patients, median (min, max) baseline TG level was 565 (267–1,502). Table 12.
Combined Patients with Isolated Elevated TG: Median (min, max) Percentage Change From Baseline for Dysbetalipoproteinemia in Adults The results of an open-label crossover trial of 16 patients (genotypes: 14 apo E2/E2 and 2 apo E3/E2) with dysbetalipoproteinemia are shown in the table below (Table 13). Table 13. The mean LDL-C reduction in this trial was 18%.
Five of the 29 patients had absent LDL-receptor function. Of these, 2 patients also had a portacaval shunt and had no significant reduction in LDL-C. Inclusion in the trial required 1 a baseline LDL-C level ≥ 190 mg/dL or 2 a baseline LDL-C level ≥ 160 mg/dL and positive family history of FH or documented premature cardiovascular disease in a first or second-degree relative.
Atorvastatin significantly decreased plasma levels of total-C, LDL-C, triglycerides, and apolipoprotein B during the 26-week double-blind phase (see Table 14 ). Table 14. Lipid-Altering Effects of Atorvastatin in Adolescent Males and Females with Heterozygous Familial Hypercholesterolemia or Severe Hypercholesterolemia Mean Percentage Change from Baseline at mg/dL (range: 70–242 mg/dL) in the atorvastatin group compared to was also studied in a three year open-label, uncontrolled trial that included 163 patients with HeFH who were 10 years to 15 years old (82 males and 81 females).
All patients had a clinical diagnosis of HeFH confirmed by genetic analysis (if not already confirmed by family history). Approximately 98% were White, and less than 1% were Black, African American or Asian. Mean LDL-C at baseline was 232 mg/dL.
The starting atorvastatin dosage was 10 mg once daily and doses were adjusted to achieve a target of <130 mg/dL LDL-C. The reductions in LDL-C from baseline were generally consistent across age groups within the trial as well as with previous clinical trials in both adult and pediatric placebo-controlled trials.
CADUET for Hypertension and Dyslipidemia In a double-blind, placebo-controlled study, a total of 1660 patients with co-morbid hypertension and dyslipidemia received once daily treatment with eight dose combinations of amlodipine and atorvastatin (5/ ), or placebo. In addition to concomitant hypertension and dyslipidemia, 15% of the patients had diabetes mellitus, 22% were smokers, and 14% had a positive family history of cardiovascular disease. At eight weeks, all eight combination-treatment groups of amlodipine and atorvastatin demonstrated statistically significant dose-related reductions in systolic blood pressure (SBP), diastolic blood pressure (DBP), and LDL-C compared to placebo, with no overall modification of effect of either component on SBP, DBP, and
| Clinical Outcomes N (%) | Amlodipine (N=663) | Placebo (N=655) | Risk Reduction (p-value) |
|---|---|---|---|
| Composite CV Endpoint | 110 (16.6) | 151 (23.1) | 31% (0.003) |
| Hospitalization for Angina Total patients with these events. | 51 (7.7) | 84 (12.8) | 42% (0.002) |
| Coronary Revascularization | 78 (11.8) | 103 (15.7) | 27% (0.033) |
| Endpoint | Atorvastatin 10 mg (N=5006) | Atorvastatin 80 mg (N=4995) | HR Atorvastatin 80 mg: atorvastatin 10 mg (95% CI) | ||
|---|---|---|---|---|---|
| PRIMARY ENDPOINT | n | (%) | n | (%) | |
| First major cardiovascular endpoint | 548 | (10.9) | 434 | (8.7) | 0.78 (0.69, 0.89) |
| Components of the Primary Endpoint | |||||
| CHD death | 127 | (2.5) | 101 | (2.0) | 0.80 (0.61, 1.03) |
| Non-fatal, non-procedure related MI | 308 | (6.2) | 243 | (4.9) | 0.78 (0.66, 0.93) |
| Resuscitated cardiac arrest | 26 | (0.5) | 25 | (0.5) | 0.96 (0.56, 1.67) |
| Stroke (fatal and non-fatal) | 155 | (3.1) | 117 | (2.3) | 0.75 (0.59, 0.96) |
| SECONDARY ENDPOINTS Secondary endpoints not included in primary endpoint. HR=hazard ratio; CHD=coronary heart disease; CI=confidence interval; MI=myocardial infarction; CHF=congestive heart failure; CV=cardiovascular; PVD=peripheral vascular disease; CABG=coronary artery bypass graft Confidence intervals for the Secondary Endpoints were not adjusted for multiple comparisons. | |||||
| First CHF with hospitalization | 164 | (3.3) | 122 | (2.4) | 0.74 (0.59, 0.94) |
| First PVD endpoint | 282 | (5.6) | 275 | (5.5) | 0.97 (0.83, 1.15) |
| First CABG or other coronary revascularization procedure Component of other secondary endpoints | 904 | (18.1) | 667 | (13.4) | 0.72 (0.65, 0.80) |
| First documented angina endpoint | 615 | (12.3) | 545 | (10.9) | 0.88 (0.79, 0.99) |
| All-cause mortality | 282 | (5.6) | 284 | (5.7) | 1.01 (0.85, 1.19) |
| Components of All-Cause Mortality | |||||
| Cardiovascular death | 155 | (3.1) | 126 | (2.5) | 0.81 (0.64, 1.03) |
| Noncardiovascular death | 127 | (2.5) | 158 | (3.2) | 1.25 (0.99, 1.57) |
| Cancer death | 75 | (1.5) | 85 | (1.7) | 1.13 (0.83, 1.55) |
| Other non-CV death | 43 | (0.9) | 58 | (1.2) | 1.35 (0.91, 2.00) |
| Suicide, homicide, and other traumatic non-CV death | 9 | (0.2) | 15 | (0.3) | 1.67 (0.73, 3.82) |
| Dose | N | TC | LDL-C | Apo B | TG | HDL-C |
|---|---|---|---|---|---|---|
| Placebo | 21 | 4 | 4 | 3 | 10 | -3 |
| 10 | 22 | -29 | -39 | -32 | -19 | 6 |
| 20 | 20 | -33 | -43 | -35 | -26 | 9 |
| 40 | 21 | -37 | -50 | -42 | -29 | 6 |
| 80 | 23 | -45 | -60 | -50 | -37 | 5 |
| Treatment (Daily Dosage) | N | Total-C | LDL-C | Apo B | TG | HDL-C |
|---|---|---|---|---|---|---|
| Trial 1 | ||||||
| Atorvastatin 10 mg | 707 | -27 | -36 A negative value for the 95% CI for the difference between treatments favors atorvastatin for all except HDL C, for which a positive value favors atorvastatin. If the range does not include 0, this indicates a statistically significant difference. | -28 | -17 | +7 |
| Lovastatin 20 mg | 191 | -19 | -27 | -20 | -6 | +7 |
| 95% CI for Diff | -9.2, -6.5 | -10.7, -7.1 | -10.0, -6.5 | -15.2, -7.1 | -1.7, 2.0 | |
| Trial 2 | ||||||
| Atorvastatin 10 mg | 222 | -25 Significantly different from pravastatin, ANCOVA, p ≤ 0.05 | -35 | -27 | -17 | +6 |
| Pravastatin 20 mg | 77 | -17 | -23 | -17 | -9 | +8 |
| 95% CI for Diff Significantly different from lovastatin, ANCOVA, p ≤ 0.05 | -10.8, -6.1 | -14.5, -8.2 | -13.4, -7.4 | -14.1, -0.7 | -4.9, 1.6 | |
| Trial 3 | ||||||
| Atorvastatin 10 mg | 132 | -29 Significantly different from simvastatin, ANCOVA, p ≤ 0.05 | -37 | -34 | -23 | +7 |
| Simvastatin 10 mg | 45 | -24 | -30 | -30 | -15 | +7 |
| 95% CI for Diff | -8.7, -2.7 | -10.1, -2.6 | -8.0, -1.1 | -15.1, -0.7 | -4.3, 3.9 |
| Placebo (N=12) | Atorvastatin 10 mg (N=37) | Atorvastatin 20 mg (N=13) | Atorvastatin 80 mg (N=14) | |
|---|---|---|---|---|
| Triglycerides | -12.4 (-36.6, 82.7) | -41.0 (-76.2, 49.4) | -38.7 (-62.7, 29.5) | -51.8 (-82.8, 41.3) |
| Total-C | -2.3 (-15.5, 24.4) | -28.2 (-44.9, -6.8) | -34.9 (-49.6, -15.2) | -44.4 (-63.5, -3.8) |
| LDL-C | 3.6 (-31.3, 31.6) | -26.5 (-57.7, 9.8) | -30.4 (-53.9, 0.3) | -40.5 (-60.6, -13.8) |
| HDL-C | 3.8 (-18.6, 13.4) | 13.8 (-9.7, 61.5) | 11.0 (-3.2, 25.2) | 7.5 (-10.8, 37.2) |
| non-HDL-C | -2.8 (-17.6, 30.0) | -33.0 (-52.1, -13.3) | -42.7 (-53.7, -17.4) | -51.5 (-72.9, -4.3) |
| Median % Change (min, max) | |||
|---|---|---|---|
| Median (min, max) at Baseline (mg/dL) | Atorvastatin 10 mg | Atorvastatin 80 mg | |
| Total-C | 442 (225, 1320) | -37 (-85, 17) | -58 (-90, -31) |
| Triglycerides | 678 (273, 5990) | -39 (-92, -8) | -53 (-95, -30) |
| Intermediate-density lipoprotein cholesterol (IDL-C) + VLDL-C | 215 (111, 613) | -32 (-76, 9) | -63 (-90, -8) |
| non-HDL-C | 411 (218, 1272) | -43 (-87, -19) | -64 (-92, -36) |
| DOSAGE | N | Total-C | LDL-C | HDL-C | TG | Apo B |
|---|---|---|---|---|---|---|
| Placebo | 47 | -1.5 | -0.4 | -1.9 | 1.0 | 0.7 |
| Atorvastatin | 140 | -31.4 | -39.6 | 2.8 | -12.0 | -34.0 |
| BP (mmHg) | Atorvastatin | ||||
|---|---|---|---|---|---|
| Amlodipine | 0 mg | 10 mg | 20 mg | 40 mg | 80 mg |
| 0 mg | — | -1.5/-0.8 | -3.2/-0.6 | -3.2/-1.8 | -3.4/-0.8 |
| 5 mg | -9.8/-4.3 | -10.7/-4.9 | -12.3/-6.1 | -9.7/-4.0 | -9.2/-5.1 |
| 10 mg | -13.2/-7.1 | -12.9/-5.8 | -13.1/-7.3 | -13.3/-6.5 | -14.6/-7.8 |
| LDL-C (% change) | Atorvastatin | ||||
| Amlodipine | 0 mg | 10 mg | 20 mg | 40 mg | 80 mg |
| 0 mg | — | -32.3 | -38.4 | -42.0 | -46.1 |
| 5 mg | 1.0 | -37.6 | -41.2 | -43.8 | -47.3 |
| 10 mg | -1.4 | -35.5 | -37.5 | -42.1 | -48.0 |
Drug information sourced from the FDA. This content is for informational purposes only and does not constitute medical advice. Consult a healthcare professional before making any medication decisions.
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