Atorvastatin Calcium (Page 9 of 11)

14.3 Hypertriglyceridemia

The response to atorvastatin in 64 patients with isolated hypertriglyceridemia ( Fredrickson Type IV) treated across several clinical trials is shown in the table below (Table 9). For the atorvastatin-treated patients, median (min, max) baseline TG level was 565 (267 to 1,502).

TABLE 9. Combined Patients With Isolated Elevated TG: Median (min, max) Percentage Change From Baseline
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)
VLDL-C -1.0 (-31.9, 53.2) -48.8 (-85.8, 57.3) -44.6 (-62.2, -10.8) -62.0 (-88.2, 37.6)
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)

14.4 Dysbetalipoproteinemia

The results of an open-label crossover study of 16 patients (genotypes: 14 apo E2/E2 and 2 apo E3/E2) with dysbetalipoproteinemia (Fredrickson Type III) are shown in the table below (Table 10).

TABLE 10. Open-Label Crossover Study of 16 Patients with Dysbetalipoproteinemia (Fredrickson Type III)
Median % Change (min, max)
Median (min, max) at Baseline (mg/dL) Atorvastatin 10 mg Atorvastatin 80 mg
Total-C 442 (225, 1,320) -37 (-85, 17) -58 (-90, -31)
Triglycerides 678 (273, 5,990) -39 (-92, -8) -53 (-95, -30)
IDL-C + VLDL-C 215 (111, 613) -32 (-76, 9) -63 (-90, -8)
non-HDL-C 411 (218, 1,272) -43 (-87, -19) -64 (-92, -36)

14.5 Homozygous Familial Hypercholesterolemia

In a study without a concurrent control group, 29 patients ages 6 years to 37 years with HoFH received maximum daily doses of 20 mg to 80 mg of atorvastatin. The mean LDL-C reduction in this study was 18%. Twenty-five patients with a reduction in LDL-C had a mean response of 20% (range of 7% to 53%, median of 24%); the remaining four patients had 7% to 24% increases in LDL-C. Five of the 29 patients had absent LDL-receptor function. Of these, two patients also had a portacaval shunt and had no significant reduction in LDL-C. The remaining three receptor-negative patients had a mean LDL-C reduction of 22%.

14.6 Heterozygous Familial Hypercholesterolemia in Pediatric Patients

In a double-blind, placebo-controlled study followed by an open-label phase, 187 boys and post-menarchal girls 10 years to 17 years of age (mean age 14.1 years) with heterozygous familial hypercholesterolemia (HeFH) or severe hypercholesterolemia, were randomized to atorvastatin (n=140) or placebo (n=47) for 26 weeks and then all received atorvastatin for 26 weeks. Inclusion in the study 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. The mean baseline LDL-C value was 218.6 mg/dL (range: 138.5 to 385.0 mg/dL) in the atorvastatin group compared to 230.0 mg/dL (range: 160.0 to 324.5 mg/dL) in the placebo group. The dosage of atorvastatin (once daily) was 10 mg for the first 4 weeks and uptitrated to 20 mg if the LDL-C level was >130 mg/dL. The number of atorvastatin-treated patients who required uptitration to 20 mg after Week 4 during the double-blind phase was 78 (55.7%).

Atorvastatin significantly decreased plasma levels of total-C, LDL-C, triglycerides, and apolipoprotein B during the 26-week double-blind phase (see Table 11).

TABLE 11. Lipid-altering Effects of Atorvastatin in Adolescent Boys and Girls with Heterozygous Familial Hypercholesterolemia or Severe Hypercholesterolemia (Mean Percentage Change From Baseline at Endpoint in Intention-to-Treat Population)
DOSAGE N Total-C LDL-C HDL-C TG Apolipoprotein 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

The mean achieved LDL-C value was 130.7 mg/dL (range: 70.0 to 242.0 mg/dL) in the atorvastatin group compared to 228.5 mg/dL (range: 152.0 to 385.0 mg/dL) in the placebo group during the 26-week double-blind phase.

The long-term efficacy of atorvastatin therapy in childhood to reduce morbidity and mortality in adulthood has not been established.

Additional pediatric use information is approved for Pfizer’s LIPITOR (atorvastatin calcium) tablets. However, due to Pfizer’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

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