Clinical Pharmacology for Ezallor
Mechanism Of Action
Rosuvastatin is an inhibitor of HMG-CoA reductase, the rate-limiting enzyme that converts 3-hydroxy-3Âmethylglutaryl coenzyme A to mevalonate, a precursor of cholesterol
Pharmacodynamics
Inhibition of HMG-CoA reductase by rosuvastatin accelerates the expression of LDL-receptors, followed by the uptake of LDL-C from blood to the liver, leading to a decrease in plasma LDL-C and total cholesterol. Sustained inhibition of cholesterol synthesis in the liver also decreases levels of very-lowÂdensity lipoproteins. The maximum LDL-C reduction of rosuvastatin is usually achieved by 4 weeks and is maintained after that.
Pharmacokinetics
Absorption
In clinical pharmacology studies in man, peak plasma concentrations of rosuvastatin were reached 3 to 5 hours following oral dosing. Both Cmax and AUC increased in approximate proportion to rosuvastatin dose. The absolute bioavailability of rosuvastatin is approximately 20%.
The AUC of rosuvastatin does not differ following evening or morning drug administration.
Effect Of food
Administration of rosuvastatin with food did not affect the AUC of rosuvastatin.
Distribution
Mean volume of distribution at steady-state of rosuvastatin is approximately 134 liters. Rosuvastatin is 88% bound to plasma proteins, mostly albumin. This binding is reversible and independent of plasma concentrations.
Elimination
Metabolism
Rosuvastatin is not extensively metabolized; approximately 10% of a radiolabeled dose is recovered as metabolite. The major metabolite is N-desmethyl rosuvastatin, which is formed principally by cytochrome P450 \ 2C9, and in vitro studies have demonstrated that N-desmethyl rosuvastatin has approximately one-sixth to one-half the HMG-CoA reductase inhibitory activity of the parent compound. Overall, greater than 90% of active plasma HMG-CoA reductase inhibitory activity is accounted for by the parent compound.
Excretion
Following oral administration, rosuvastatin and its metabolites are primarily excreted in the feces (90%). After an intravenous dose, approximately 28% of total body clearance was via the renal route, and 72% by the hepatic route. The elimination half-life of rosuvastatin is approximately 19 hours.
Specific Populations
Geriatric Patients
There were no differences in plasma concentrations of rosuvastatin between the nonelderly and elderly populations (age ≥ 65 years).
Pediatric Patients
In a population pharmacokinetic analysis of two pediatric trials involving patients with heterozygous familial hypercholesterolemia 10 to 17 years of age and 8 to 17 years of age, respectively, rosuvastatin exposure appeared comparable to or lower than rosuvastatin exposure in adult patients.
Male And Female Patients
There were no differences in plasma concentrations of rosuvastatin between men and women.
Racial Or Ethnic Groups
A population pharmacokinetic analysis revealed no clinically relevant differences in pharmacokinetics among White, Hispanic, and Black or Afro-Caribbean groups. However, pharmacokinetic studies, including one conducted in the US, have demonstrated an approximate 2-fold elevation in median exposure (AUC and Cmax) in Asian subjects when compared with a White control group.
Patients With Renal Impairment
Mild to moderate renal impairment (CLcr ≥30 mL/min/1.73 m²) had no influence on plasma concentrations of rosuvastatin. However, plasma concentrations of rosuvastatin increased to a clinically significant extent (about 3-fold) in patients with severe renal impairment (CLcr <30 mL/min/1.73 m²) not receiving hemodialysis compared with healthy subjects (CLcr >80 mL/min/1.73 m²).
Steady-state plasma concentrations of rosuvastatin in patients on chronic hemodialysis were approximately 50% greater compared with healthy volunteer subjects with normal renal function.
Patients With Hepatic Impairment
In patients with chronic alcohol liver disease, plasma concentrations of rosuvastatin were modestly increased.
In patients with Child-Pugh A disease, Cmax and AUC were increased by 60% and 5%, respectively, as compared with patients with normal liver function. In patients with Child-Pugh B disease, Cmax and AUC were increased 100% and 21%, respectively, compared with patients with normal liver function.
Drug Interactions Studies
Rosuvastatin clearance is not dependent on metabolism by cytochrome P450 3A4 to a clinically significant extent.
Rosuvastatin is a substrate for certain transporter proteins including the hepatic uptake organic anion-transporting polyprotein (OATP1B1) and efflux transporter breast cancer resistance protein (BCRP). Concomitant administration of rosuvastatin with medications that are inhibitors of these transporter proteins (e.g., cyclosporine, certain HIV protease inhibitors) may result in increased rosuvastatin plasma concentrations [see DOSAGE AND ADMINISTRATION and DRUG INTERACTIONS].
Table 8: Effect of Coadministered Drugs on Rosuvastatin Systemic Exposure
| Coadministered drug and dosing regimen Rosuvastatin |
|
Dose (mg)1 |
Mean Ratio (ratio with/without coadministered drug) No Effect = 1 |
| Change in AUC |
Change in Cmax |
Sofosbuvir/ velpatasvir/ voxilaprevir
(400 mg/100 mg/100 mg) + Voxilaprevir (100 mg) once daily for 15 days |
10 mg single dose |
7.392
(6.68 to 8.18) 3 |
18.882
(16.23 to 21.96) 3 |
| Cyclosporine - stable dose required (75 mg to 200 mg BID) |
10 mg QD for 10 days |
7.12 |
112 |
| Darolutamide 600 mg BID, 5 days |
5mg, single dose |
5.22 |
~52 |
| Regorafenib 160mg QD, 14 days |
5 mg single dose |
3.82 |
4.62 |
| Atazanavir/ritonavir combination 300 mg/100 mg QD for 8 days |
10 mg |
3.12 |
72 |
| Simeprevir 150 mg QD, 7 days |
10 mg, single dose |
2.82
(2.3 to 3.4)3 |
3.22
(2.6 to 3.9)3 |
| Velpatasvir 100mg once daily |
10 mg single dose |
2.692
(2.46 to 2.94) 3 |
2.612
(2.32 to 2.92)3 |
| Ombitasvir 25mg/ paritaprevir 150mg/ ritonavir 100mg + dasabuvir 400mg BID |
5mg single dose |
2.592 (2.09 to 3.21) 3 |
7.132 (5.11 to 9.96)3 |
| Teriflunomide |
Not available |
2.512 |
2.652 |
| Enasidenib 100 mg QD, 28 days |
10 mg, single dose |
2.44 |
3.66 |
| Elbasvir 50mg/grazoprevir 200mg once daily |
10mg single dose |
2.262
(1.89 to 2.69) 3 |
5.492 (4.29 to 7.04)3 |
| Glecaprevir 400mg/pibrentasvir 120mg once daily |
5mg once daily |
2.152 (1.88 to 2.46) 3 |
5.622
(4.80 to 6.59)3 |
| Lopinavir/ritonavir combination 400 mg/100 mg BID for 17 days |
20 mg QD for 7 days |
2.12 (1.7 to 2.6)3 |
52
(3.4 to 6.4)3 |
| Capmatinib 400 mg BID |
10 mg, single dose |
2.082 (1.56 to 2.76) 3 |
3.042
(2.36 to 3.92)3 |
| Fostamatinib 100 mg BID |
20 mg, single dose |
1.962
(1.77 to 2.15) 3 |
1.882
(1.69 to 2.09) 3 |
| Febuxostat 120 mg QD for 4 days |
10 mg, single dose |
1.92
(1.5 to 2.5)3 |
2.12
(1.8 to 2.6)3 |
| Gemfibrozil 600 mg BID for 7 days |
80 mg |
1.92
(1.6 to 2.2)3 |
2.22
(1.8 to 2.7)3 |
| Tafamidis 61 mg BID on Days 1 & 2, followed by QD on Days 3 to 9 |
10 mg |
1.972
(1.68 to2.31)3 |
1.862
(1.59 to2.16)3 |
| Eltrombopag 75 mg QD, 5 days |
10 mg |
1.6
(1.4 to 1.7)3 |
2
(1.8 to 2.3)3 |
| Darunavir 600 mg/ritonavir 100 mg BID, 7 days |
10 mg QD for 7 days |
1.5
(1 to 2.1)3 |
2.4
(1.6 to 3.6)3 |
| Tipranavir/ritonavir combination 500 mg/200mg BID for 11 days |
10 mg |
1.4
(1.2 to 1.6)3 |
2.2
(1.8 to 2.7)3 |
| Dronedarone 400 mg BID |
10 mg |
1.4 |
|
| Itraconazole 200 mg QD, 5 days |
10 mg or 80 mg |
1.4
(1.2 to 1.6)3 |
1.4
(1.2 to 1.5)3 |
1.3
(1.1 to 1.4)3 |
1.2
(0.9 to 1.4)3 |
| Ezetimibe 10 mg QD, 14 days |
10 mg QD for 14 days |
1.2
(0.9 to 1.6)3 |
1.2
(0.8 to 1.6)3 |
| Fosamprenavir/ritonavir 700 mg/100 mg BID for 7 days |
10 mg |
1.1 |
1.5 |
| Fenofibrate 67 mg TID for 7 days |
10 mg |
↔ |
1.2
(1.1 to 1.3)3 |
| Rifampicin 450 mg QD, 7 days |
20 mg |
↔ |
|
| Aluminum & magnesium hydroxide combination antacid |
40 mg |
0.52
(0.4 to 0.5)3 |
0.52
(0.4 to 0.6)3 |
| Administered simultaneously Administered 2 hours apart |
40 mg |
0.8
(0.7 to 0.9)3 |
0.8
(0.7 to 1)3 |
| Ketoconazole 200 BID for 7 days |
80 mg |
1
(0.8 to 1.2)3 |
1
(0.7 to 1.3)3 |
| Fluconazole 200 mg QD for 11 days |
80 mg |
1.1
(1 to 1.3)3 |
1.1
(0.9 to 1.4)3 |
| Erythromycin 500 mg QID for 7 days |
80 mg |
0.8
(0.7 to 0.9)3 |
0.7
(0.5 to 0.9)3 |
QD= Once daily, BID= Twice daily, TID= Three times daily, QID= Four times daily
1 Single dose unless otherwise noted.
2 Clinically significant [see DOSAGE AND ADMINISTRATION and WARNINGS AND PRECAUTIONS]
3 Mean ratio with 90% CI (with/without coadministered drug, e.g., 1= no change, 0.7 = 30% decrease, 11=11 fold increase in exposure) |
Table 9: Effect of Rosuvastatin Coadministration on Systemic Exposure to Other Drugs
| Rosuvastatin Dosage Regimen |
Coadministered Drug |
| Name and Dose |
Mean Ratio (ratio with/without coadministered drug) No Effect = 1 |
| Change in AUC |
Change in Cmax |
| 40 mg QD for 10 days |
Warfarin1 25 mg single dose |
R-Warfarin 1
(1 to 1.1)2 |
R-Warfarin 1
(0.9 to 1)2 |
S-Warfarin 1.1
(1 to 1.1)2 |
S-Warfarin 1
(0.9 to 1.1)2 |
| 40 mg QD for 12 days |
Digoxin 0.5 mg single dose |
1
(0.9 to 1.2)2 |
1
(0.9 to 1.2)2 |
| 40 mg QD for 28 days |
Oral Contraceptive
(ethinyl estradiol 0.035 mg & norgestrel 0.180, 0.215 and 0.250 mg) QD for 21 Days |
EE 1.3
(1.2 to 1.3)2 |
EE 1.3
(1.2 to 1.3)2 |
NG 1.3
(1.3 to 1.4)2 |
NG 1.2
(1.1 to 1.3)2 |
EE = ethinyl estradiol, NG = norgestrel, QD: Once daily
1 Clinically significant pharmacodynamic effects [see DRUG INTERACTIONS]
2 Mean ratio with 90% CI (with/without coadministered drug, e.g., 1= no change, 0.7=30% decrease, 11=11-fold increase in exposure) |
Pharmacogenomics
Disposition of rosuvastatin, involves OATP1B1 and other transporter proteins. Higher plasma concentrations of rosuvastatin have been reported in very small groups of patients (n=3 to 5) who have two reduced function alleles of the gene that encodes OATP1B1 (SLCO1B1 521T > C). The frequency of this genotype (i.e., SLCO1B1 521 C/C) is generally lower than 5% in most racial/ethnic groups. The impact of this polymorphism on efficacy and/or safety of rosuvastatin has not been clearly established.
Clinical Studies
Primary Prevention Of Cardiovascular Disease
In the Justification for the Use of Statins in Primary Prevention: An Intervention Trial Evaluating Rosuvastatin (JUPITER) study, the effect of rosuvastatin on the occurrence of major cardiovascular (CV) disease events was assessed in 17,802 men (≥50 years) and women (≥60 years) who had no clinically evident cardiovascular disease, LDL-C levels <130 mg/dL and hsCRP levels ≥2 mg/L. The study population had an estimated baseline coronary heart disease risk of 11.6% over 10 years based on the Framingham risk criteria and included a high percentage of patients with additional risk factors such as hypertension (58%), low HDL-C levels (23%), cigarette smoking (16%), or a family history of premature CHD (12%). Patients had a median baseline LDL-C of 108 mg/dL and hsCRP of 4.3 mg/L. Patients were randomly assigned to placebo (n=8901) or rosuvastatin 20 mg once daily (n=8901) and were followed for a mean duration of 2 years. The JUPITER study was stopped early by the Data Safety Monitoring Board due to meeting predefined stopping rules for efficacy in rosuvastatin-treated subjects.
The primary end point was a composite end point consisting of the time-to-first occurrence of any of the following major CV events: CV death, nonfatal myocardial infarction, nonfatal stroke, hospitalization for unstable angina or an arterial revascularization procedure.
Rosuvastatin significantly reduced the risk of major CV events (252 events in the placebo group vs. 142 events in the rosuvastatin group) with a statistically significant (p<0.001) relative risk reduction of 44% and absolute risk reduction of 1.2% (see Figure 1). The risk reduction for the primary end point was consistent across the following predefined subgroups: age, sex, race, smoking status, family history of premature CHD, body mass index, LDL-C, HDL-C, and hsCRP levels.
Figure 1: Time to First Occurrence of Major Cardiovascular Events in JUPITER
The individual components of the primary end point are presented in Figure 3. Rosuvastatin significantly reduced the risk of nonfatal myocardial infarction, nonfatal stroke, and arterial revascularization procedures. There were no significant treatment differences between the rosuvastatin and placebo groups for death due to cardiovascular causes or hospitalizations for unstable angina.
Rosuvastatin significantly reduced the risk of myocardial infarction (6 fatal events and 62 nonfatal events in placebo-treated subjects vs. 9 fatal events and 22 nonfatal events in rosuvastatin-treated subjects) and the risk of stroke (6 fatal events and 58 nonfatal events in placebo-treated subjects vs. 3 fatal events and 30 nonfatal events in rosuvastatin-treated subjects).
In a post-hoc subgroup analysis of JUPITER subjects (rosuvastatin=725, placebo=680) with a hsCRP ≥2 mg/L and no other traditional risk factors (smoking, BP ≥140/90 or taking antihypertensives, low HDL- C) other than age, after adjustment for high HDL-C, there was no significant treatment benefit with rosuvastatin treatment.
Figure 2: Major CV Events by Treatment Group in JUPITER
At one year, rosuvastatin increased HDL-C and reduced LDL-C, hsCRP, total cholesterol and serum triglyceride levels (p<0.001 for all versus placebo).
Primary Hyperlipidemia In Adults
Rosuvastatin reduces Total-C, LDL-C, ApoB, non-HDL-C, and TG, and increases HDL-C, in adult patients with hyperlipidemia and mixed dyslipidemia.
In a multicenter, double-blind, placebo-controlled study in patients with hyperlipidemia, rosuvastatin given as a single daily dose (5 to 40 mg) for 6 weeks significantly reduced Total-C, LDL-C, non-HDLÂC, and ApoB, across the dose range (Table 10).
Table 10: Lipid-modifying Effect of Rosuvastatin in Adult Patients with Hyperlipidemia (Adjusted Mean % Change from Baseline at Week 6)
| Dose |
N |
Total-C |
LDL-C |
Non- HDL-C |
ApoB |
TG |
HDL-C |
| Placebo |
13 |
-5 |
-7 |
-7 |
-3 |
-3 |
3 |
| Rosuvastatin 5 mg |
17 |
-33 |
-45 |
-44 |
-38 |
-35 |
13 |
| Rosuvastatin 10 mg |
17 |
-36 |
-52 |
-48 |
-42 |
-10 |
14 |
| Rosuvastatin 20 mg |
17 |
-40 |
-55 |
-51 |
-46 |
-23 |
8 |
| Rosuvastatin 40 mg |
18 |
-46 |
-63 |
-60 |
-54 |
-28 |
10 |
Rosuvastatin was compared with the statins (atorvastatin, simvastatin, and pravastatin) in a multicenter, open-label, dose-ranging study of 2240 patients with hyperlipidemia or mixed dyslipidemia. After randomization, patients were treated for 6 weeks with a single daily dose of either rosuvastatin, atorvastatin, simvastatin, or pravastatin (Figure 3 and Table 11).
Figure 3: Percent LDL-C Change by Dose of Rosuvastatin, Atorvastatin, Simvastatin, and Pravastatin at Week 6 in Adult Patients with Hyperlipidemia or Mixed Dyslipidemia
Box plots are a representation of the 25th, 50th, and 75th percentile values, with whiskers representing the 10th and 90th percentile values. Mean baseline LDL-C: 189 mg/dL
Table 11: Percent Change in LDL-C by Dose of Rosuvastatin, Atorvastatin, Simvastatin, and Pravastatin From Baseline to Week 6 (LS Mean1) in Adult Patients with Hyperlipidemia or Mixed Dyslipidemia (Sample Sizes Ranging from 156 to 167 Patients Per Group)
| Treatment |
Treatment Daily Dose |
| 10 mg |
20 mg |
40 mg |
80 mg |
| Rosuvastatin |
-462 |
-523 |
-554 |
--- |
| Atorvastatin |
-37 |
-43 |
-48 |
-51 |
| Simvastatin |
-28 |
-35 |
-39 |
-46 |
| Pravastatin |
-20 |
-24 |
-30 |
--- |
1Corresponding standard errors are approximately 1.00.
2 Rosuvastatin 10 mg reduced LDL-C significantly more than atorvastatin 10 mg; pravastatin 10 mg, 20 mg, and 40 mg; simvastatin 10 mg, 20 mg, and 40 mg. (p<0.002)
3 Rosuvastatin 20 mg reduced LDL-C significantly more than atorvastatin 20 mg and 40 mg; pravastatin 20 mg and 40 mg; simvastatin 20 mg, 40 mg, and 80 mg. (p<0.002)
4 Rosuvastatin 40 mg reduced LDL-C significantly more than atorvastatin 40 mg; pravastatin 40 mg; simvastatin 40 mg, and 80 mg. (p<0.002) |
Slowing Of The Progression Of Atherosclerosis
In the Measuring Effects On Intima Media Thickness: an Evaluation Of Rosuvastatin 40 mg (METEOR) study, the effect of therapy with rosuvastatin on carotid atherosclerosis was assessed by B-mode ultrasonography in patients with elevated LDL-C, at low risk (Framingham risk <10% over ten years) for symptomatic coronary artery disease and with subclinical atherosclerosis as evidenced by carotid intimal-medial thickness (cIMT). In this double-blind, placebo-controlled clinical study 984 adult patients were randomized (of whom 876 were analyzed) in a 5:2 ratio to rosuvastatin 40 mg or placebo once daily. Ultrasonograms of the carotid walls were used to determine the annualized rate of change per patient from baseline to two years in mean maximum cIMT of 12 measured segments. The estimated difference in the rate of change in the maximum cIMT analyzed over all 12 carotid artery sites between patients treated with rosuvastatin and placebo-treated patients was -0.0145 mm/year (95% CI –0.0196, –0.0093; p<0.0001).
The annualized rate of change from baseline for the placebo group was +0.0131 mm/year (p<0.0001). The annualized rate of change from baseline for the group treated with rosuvastatin was -0.0014 mm/year (p=0.32).
At an individual patient level in the group treated with rosuvastatin, 52.1% of patients demonstrated an absence of disease progression (defined as a negative annualized rate of change), compared to 37.7% of patients in the placebo group.
HeFH In Adults
In a study of adult patients with HeFH (baseline mean LDL of 291 mg/dL), patients were randomized to rosuvastatin 20 mg or atorvastatin 20 mg. The dose was increased at 6-week intervals. Significant LDLC reductions from baseline were seen at each dose in both treatment groups (Table 12).
Table 12: LDL-C Percent Change from Baseline
|
|
Rosuvastatin
(n=435) LS Mean1 (95% CI) |
Atorvastatin
(n=187) LS Mean1 (95% CI) |
| Week 6 |
20 mg |
-47%
(-49%, -46%) |
-38%
(-40%, -36%) |
| Week 12 |
40 mg |
-55%
(-57%, -54%) |
-47%
(-49%, -45%) |
| Week 18 |
80 mg |
NA |
-52%
(-54%, -50%) |
| 1 LS Means are least square means adjusted for baseline LDL-C |
HeFH In Pediatric Patients
In a double-blind, randomized, multicenter, placebo-controlled, 12-week study, 176 (97 male and 79 female) children and adolescents with heterozygous familial hypercholesterolemia were randomized to rosuvastatin 5 mg, 10 mg or 20 mg or placebo daily. Patients ranged in age from 10 to 17 years (median age of 14 years) with approximately 30% of the patients 10 to 13 years and approximately 17%, 18%, 40%, and 25% at Tanner stages II, III, IV, and V, respectively. Females were at least 1 year postmenarche. Mean LDL-C at baseline was 233 mg/dL (range of 129 to 399). The 12-week double-blind phase was followed by a 40 week open label dose-titration phase, where all patients (n=173) received 5 mg, 10 mg or 20 mg rosuvastatin daily.
Rosuvastatin significantly reduced LDL-C (primary end point), total cholesterol and ApoB levels at each dose compared to placebo. Results are shown in Table 13 below.
Table 13: Lipid-Modifying Effects of Rosuvastatin in Pediatric Patients 10 to 17 years of Age with Heterozygous Familial Hypercholesterolemia (Least-Squares Mean Percent Change from Baseline To Week 12)
| Dose (mg) |
N |
LDL-C |
HDL-C |
Total-C |
TG1 |
ApoB |
| Placebo |
46 |
-1% |
+7% |
0% |
-7% |
-2% |
| 5 |
42 |
-38% |
+4%2 |
-30% |
-13%2 |
-32% |
| 10 |
44 |
-45% |
+11%2 |
-34% |
-15%2 |
-38% |
| 20 |
44 |
-50% |
+9%2 |
-39% |
16%2 |
-41% |
1 Median percent change
2 Difference from placebo not statistically significant |
Rosuvastatin was also studied in a two year open-label, uncontrolled, titration-to-goal trial that included 175 children and adolescents with heterozygous familial hypercholesterolemia who were 8 to 17 years old (79 boys and 96 girls). All patients had a documented genetic defect in the LDL receptor or in ApoB. Approximately 89% were White, 7% were Asian, 1% were Black, and fewer than 1% were Hispanic. Mean LDL-C at baseline was 236 mg/dL. Fifty-eight (33%) patients were prepubertal at baseline. The starting rosuvastatin dosage for all children and adolescents was 5 mg once daily. Children 8 to less than 10 years of age (n=41 at baseline) could titrate to a maximum dosage of 10 mg once daily, and children and adolescents 10 to 17 years of age could titrate to a maximum dosage of 20 mg once daily.
The reductions in LDL-C from baseline were generally consistent across age groups within the trial as well as with previous experience in both adult and pediatric controlled trials.
HoFH In Adult and Pediatric Patients
In an open-label, forced-titration study, HoFH patients (n=40, 8 to 63 years) were evaluated for their response to rosuvastatin 20 to 40 mg titrated at a 6-week interval. In the overall population, the mean LDL-C reduction from baseline was 22%. About one-third of the patients benefited from increasing their dose from 20 mg to 40 mg with further LDL-C lowering of greater than 6%. In the 27 patients with at least a 15% reduction in LDL-C, the mean LDL-C reduction was 30% (median 28% reduction). Among 13 patients with an LDL-C reduction of <15%, 3 had no change or an increase in LDL-C. Reductions in LDL-C of 15% or greater were observed in 3 of 5 patients with known receptor negative status.
HoFH In Pediatric Patients
Rosuvastatin was studied in a randomized, double-blind, placebo-controlled, multicenter, crossover study in 14 pediatric patients with HoFH. The study included a 4-week dietary lead-in phase during which patients received rosuvastatin 10 mg daily, a cross-over phase that included two 6-week treatment periods with either rosuvastatin 20 mg or placebo in random order, followed by a 12-week open-label phase during which all patients received rosuvastatin 20 mg. Patients ranged in age from 7 to 15 years of age (median 11 years), 50% were male, 71% were White, 21% were Asian, 7% were Black, and no patients were of Hispanic ethnicity. Fifty percent were on apheresis therapy and 57% were taking ezetimibe. Patients who entered the study on apheresis therapy or ezetimibe continued the treatment throughout the entire study. Mean LDL-C at baseline was 416 mg/dL (range 152 to 716 mg/dL). A total of 13 patients completed both treatment periods of the randomized crossover phase; one patient withdrew consent due to inability to have blood drawn during the crossover phase.
Rosuvastatin 20 mg significantly reduced LDL-C, total cholesterol, ApoB, and non-HDL-C compared to placebo (Table 14).
Table 14: Lipid-modifying Effects of Rosuvastatin in Pediatric Patients 7 to 15 years of Age with Homozygous Familial Hypercholesterolemia After 6 Weeks
|
Placebo
(N=13) |
Rosuvastatin 20 mg
(N=13) |
Percent difference (95% CI) |
| LDL-C (mg/dL) |
481 |
396 |
-22.3%
(-33.5, -9.1)1 |
| Total-C (mg/dL) |
539 |
448 |
-20.1%
(-29.7, -9.1)2 |
| Non-HDL-C (mg/dL) |
505 |
412 |
-22.9%
(-33.7, -10.3)2 |
| ApoB (mg/dL) |
268 |
235 |
-17.1%
(-29.2, -2.9)3 |
% Difference estimates are based on transformations of the estimated mean difference in log LDL measurements between rosuvastatin and placebo using a mixed model adjusted for study period
1 p=0.005,
2 p=0.003,
3 p=0.024 |
Primary Dysbetalipoproteinemia In Adults
In a randomized, multicenter, double-blind crossover study, 32 adult patients (27 with ∈2/∈2 and 4 with apo E mutation [Arg145Cys] with primary dysbetalipoproteinemia entered a 6-week dietary lead-in period on the NCEP Therapeutic Lifestyle Change (TLC) diet. Following dietary lead-in, patients were randomized to a sequence of treatments for 6 weeks each: rosuvastatin 10 mg followed by rosuvastatin 20 mg or rosuvastatin 20 mg followed by rosuvastatin 10 mg. Rosuvastatin reduced non-HDL-C (primary end point) and circulating remnant lipoprotein levels. Results are shown in the table below.
Table 15: Lipid-modifying Effects of Rosuvastatin 10 mg and 20 mg in Adult Patients with Primary Dysbetalipoproteinemia (Type III hyperlipoproteinemia) After Six Weeks by Median Percent Change (95% CI) from Baseline (N=32)
|
Median at Baseline (mg/dL) |
Median percent change from baseline (95% CI) Rosuvastatin 10 mg |
Median percent change from baseline (95% CI) Rosuvastatin 20 mg |
| Total-C |
342.5 |
-43.3
(-46.9, -37.5) |
-47.6
(-51.6,-42.8) |
| Triglycerides |
503.5 |
-40.1
(-44.9, -33.6) |
-43
(-52.5, -33.1) |
| Non-HDL-C |
294.5 |
-48.2
(-56.7, -45.6) |
-56.4
(-61.4, -48.5) |
| VLDL-C + IDL-C |
209.5 |
-46.8
(-53.7, -39.4) |
-56.2
(-67.7, -43.7) |
| LDL-C |
112.5 |
-54.4
(-59.1, -47.3) |
-57.3
(-59.4, -52.1) |
| HDL-C |
35.5 |
10.2
(1.9, 12.3) |
11.2
(8.3, 20.5) |
| RLP-C |
82 |
-56.4
(-67.1, -49) |
-64.9
(-74, -56.6) |
| Apo-E |
16 |
-42.9
(-46.3, -33.3) |
-42.5
(-47.1, -35.6) |
Hypertriglyceridemia In Adults
In a double-blind, placebo-controlled study in adult patients with baseline TG levels from 273 to 817 mg/dL, rosuvastatin given as a single daily dose (5 mg to 40 mg) over 6 weeks significantly reduced serum TG levels (Table 16).
Table 16: Lipid-Modifying Effect of Rosuvastatin in Adult Patients with Primary Hypertriglyceridemia After Six Weeks by Median (Min, Max) Percent Change from Baseline to Week 6
| Dose |
Placebo
(n=26) |
Rosuvastatin 5 mg
(n=25) |
Rosuvastatin 10 mg
(n=23) |
Rosuvastatin 20 mg
(n=27) |
Rosuvastatin 40 mg
(n=25) |
| Triglycerides |
1
(-40, 72) |
-21
(-58, 38) |
-37
(-65, 5) |
-37
(-72, 11) |
-43
(-80, -7) |
| Non-HDL-C |
2
(-13, 19) |
-29
(-43, -8) |
-49
(-59, -20) |
-43
(-74, 12) |
-51
(-62, -6) |
| Total-C |
1
(-13, 17) |
-24
(-40, -4) |
-40
(-51, -14) |
-34
(-61, -11) |
-40
(-51, -4) |
| LDL-C |
5
(-30, 52) |
-28
(-71, 2) |
-45
(-59, 7) |
-31
(-66, 34) |
-43
(-61, -3) |
| HDL-C |
-3
(-25, 18) |
3
(-38, 33) |
8
(-8, 24) |
22
(-5, 50) |
17
(-14, 63) |