Study with Atorvastatin (Study 301)
Pitavastatin tablets were compared with Atorvastatin Calcium Tablets (referred to as atorvastatin) in a randomized, multicenter, double-blind, double-dummy, active-controlled, non-inferiority study of 817 adult patients with primary hyperlipidemia or mixed dyslipidemia. Patients entered a 6- to 8-week wash-out/dietary lead-in period and then were randomized to a 12-week treatment with either pitavastatin tablets or atorvastatin (Table 5). Non-inferiority of pitavastatin to a given dose of atorvastatin was considered to be demonstrated if the lower bound of the 95% CI for the mean treatment difference was greater than -6% for the mean percent change in LDL-C.
Lipid results are shown in Table 5. For the percent change from baseline to endpoint in LDL-C, pitavastatin tablets were non-inferior to atorvastatin for the two pairwise comparisons: pitavastatin tablets 2 mg vs. atorvastatin 10 mg and pitavastatin tablets 4 mg vs. atorvastatin 20 mg. Mean treatment differences (95% CI) were 0% (-3%, 3%) and 1% (-2%, 4%), respectively.
Table 5. Lipid Response by Dose of Pitavastatin Tablets and Atorvastatin in Adult Patients with Primary Hyperlipidemia or Mixed Dyslipidemia in Study 301 (Mean % Change from Baseline at Week 12)
| Treatment | N | LDL-C | Apo-B | TC | TG | HDL-C | non-HDL-C |
|---|
Pitavastatin Tablets
2 mg daily
| 315 | -38 | -30 | -28 | -14 | 4 | -35 |
Pitavastatin Tablets
4 mg daily
| 298 | -45 | -35 | -32 | -19 | 5 | -41 |
Atorvastatin
10 mg daily
| 102 | -38 | -39 | -28 | -18 | 3 | -35 |
Atorvastatin
20 mg daily
| 102 | -44 | -36 | -33 | -22 | 2 | -41 |
Study with Simvastatin (Study 302)
Pitavastatin tablets were compared with Simvastatin Tablets (referred to as simvastatin) in a randomized, multicenter, double-blind, double-dummy, active-controlled, non-inferiority study of 843 adult patients with primary hyperlipidemia or mixed dyslipidemia. Patients entered a 6- to 8-week wash-out/dietary lead-in period and then were randomized to a 12 week treatment with either pitavastatin tablets or simvastatin (Table 6). Non-inferiority of pitavastatin to a given dose of simvastatin was considered to be demonstrated if the lower bound of the 95% CI for the mean treatment difference was greater than -6% for the mean percent change in LDL-C.
Lipid results are shown in Table 6. For the percent change from baseline to endpoint in LDL-C, pitavastatin tablets were non-inferior to simvastatin for the two pairwise comparisons: pitavastatin tablets 2 mg vs. simvastatin 20 mg and pitavastatin tablets 4 mg vs. simvastatin 40 mg. Mean treatment differences (95% CI) were 4% (1%, 7%) and 1% (-2%, 4%), respectively.
Table 6. Lipid Response by Dose of Pitavastatin Tablets and Simvastatin in Adult Patients with Primary Hyperlipidemia or Mixed Dyslipidemia in Study 302 (Mean % Change from Baseline at Week 12)
| Treatment | N | LDL-C | Apo-B | TC | TG | HDL-C | non-HDL-C |
|---|
Pitavastatin Tablets
2 mg daily
| 307 | -39 | -30 | -28 | -16 | 6 | -36 |
Pitavastatin Tablets
4 mg daily
| 319 | -44 | -35 | -42 | -17 | 6 | -41 |
Simvastatin
20 mg daily
| 107 | -35 | -27 | -25 | -16 | 6 | -32 |
Simvastatin
40 mg daily
| 110 | -43 | -34 | -31 | -16 | 7 | -39 |
Study with Pravastatin in Geriatric Patients (Study 306)
Pitavastatin tablets were compared with Pravastatin Sodium Tablets (referred to as pravastatin) in a randomized, multicenter, double-blind, double-dummy, parallel group, active-controlled non-inferiority study of 942 geriatric patients (≥65 years) with primary hyperlipidemia or mixed dyslipidemia. Patients entered a 6- to 8-week wash-out/dietary lead-in period, and then were randomized to a once daily dose of pitavastatin tablets or pravastatin for 12 weeks (Table 7). Non-inferiority of pitavastatin tablets to a given dose of pravastatin was assumed if the lower bound of the 95% CI for the treatment difference was greater than -6% for the mean percent change in LDL-C.
Lipid results are shown in Table 7. Pitavastatin tablets significantly reduced LDL-C compared to pravastatin as demonstrated by the following pairwise dose comparisons: pitavastatin tablets 1 mg vs. pravastatin 10 mg, pitavastatin tablets 2 mg vs. pravastatin 20 mg and pitavastatin tablets 4 mg vs. pravastatin 40 mg. Mean treatment differences (95% CI) were 9% (6%, 12%), 10% (7%, 13%) and 10% (7%, 13%), respectively.
Table 7. Lipid Response by Dose of Pitavastatin Tablets and Pravastatin in Geriatric Patients with Primary Hyperlipidemia or Mixed Dyslipidemia in Study 306 (Mean % Change from Baseline at Week 12)
| Treatment | N | LDL-C | Apo-B | TC | TG | HDL-C | non-HDL-C |
|---|
Pitavastatin Tablets
1 mg daily
| 207 | -31 | -25 | -22 | -13 | 1 | -29 |
Pitavastatin Tablets
2 mg daily
| 224 | -39 | -31 | -27 | -15 | 2 | -36 |
Pitavastatin Tablets
4 mg daily
| 210 | -44 | -37 | -31 | -22 | 4 | -41 |
Pravastatin
10 mg daily
| 103 | -22 | -17 | -15 | -5 | 0 | -20 |
Pravastatin
20 mg daily
| 96 | -29 | -22 | -21 | -11 | -1 | -27 |
Pravastatin
40 mg daily
| 102 | -34 | -28 | -24 | -15 | 1 | -32 |
Study with Simvastatin in Patients with ≥ 2 Risk Factors for Coronary Heart Disease (Study 304)
Pitavastatin tablets were compared with Simvastatin Tablets (referred to as simvastatin) in a randomized, multicenter, double-blind, double-dummy, active-controlled, non-inferiority study of 351 adult patients with primary hyperlipidemia or mixed dyslipidemia with ≥2 risk factors for coronary heart disease. After a 6- to 8-week wash-out/dietary lead-in period, patients were randomized to a 12-week treatment with either pitavastatin tablets or simvastatin (Table 8). Non-inferiority of pitavastatin tablets to simvastatin was considered to be demonstrated if the lower bound of the 95% CI for the mean treatment difference was greater than -6% for the mean percent change in LDL-C.
Lipid results are shown in Table 8. Pitavastatin tablets 4 mg was non-inferior to simvastatin 40 mg for percent change from baseline to endpoint in LDL-C. The mean treatment difference (95% CI) was 0% (-2%, 3%).
Table 8. Lipid Response by Dose of Pitavastatin Tablets and Simvastatin in Adult Patients with Primary Hyperlipidemia or Mixed Dyslipidemia with ≥2 Risk Factors for Coronary Heart Disease in Study 304 (Mean % Change from Baseline at Week 12)
| Treatment | N | LDL-C | Apo-B | TC | TG | HDL-C | non-HDL-C |
|---|
Pitavastatin Tablets
4 mg daily
| 233 | -44 | -34 | -31 | -20 | 7 | -40 |
Simvastatin
40 mg daily
| 118 | -44 | -34 | -31 | -15 | 5 | -39 |
Study with Atorvastatin in Patients with Type 2 Diabetes Mellitus (Study 305)
Pitavastatin tablets were compared with Atorvastatin Calcium Tablets (referred to as atorvastatin) in a randomized, multicenter, double-blind, double-dummy, parallel group, active-controlled, non-inferiority study of 410 adult patients with type 2 diabetes mellitus and mixed dyslipidemia. Patients entered a 6- to 8-week washout/dietary lead-in period and were randomized to a once daily dose of pitavastatin tablets or atorvastatin for 12 weeks. Non-inferiority of pitavastatin tablets was considered to be demonstrated if the lower bound of the 95% CI for the mean treatment difference was greater than -6% for the mean percent change in LDL-C.
Lipid results are shown in Table 9. The treatment difference (95% CI) for LDL-C percent change from baseline was -2% (-6.2%, 1.5%). The two treatment groups were not statistically different on LDL-C. However, the lower limit of the CI was -6.2%, slightly exceeding the -6% non-inferiority limit. The study failed to demonstrate that pitavastatin tablets were not significantly different than atorvastatin in lowering LDL-C in patients with type 2 diabetes mellitus and mixed dyslipidemia.
Table 9. Lipid Response by Dose of Pitavastatin Tablets and Atorvastatin in Adult Patients with Type 2 Diabetes Mellitus and Mixed Dyslipidemia in Study 305 (Mean % Change from Baseline at Week 12)
| Treatment | N | LDL-C | Apo-B | TC | TG | HDL-C | non-HDL-C |
|---|
Pitavastatin Tablets
4 mg daily
| 274 | -41 | -32 | -28 | -20 | 7 | -36 |
Atorvastatin
20 mg daily
| 136 | -43 | -34 | -32 | -27 | 8 | -40 |
The treatment differences in efficacy in LDL-C change from baseline between pitavastatin tablets and active controls (i.e., atorvastatin, simvastatin, or pravastatin) in the active-controlled studies described above are summarized in Figure 1.
Figure 1. Treatment Difference in Adjusted Mean Percent Change in LDL-C between Pitavastatin Tablets and the Comparator (Atorvastatin, Simvastatin, or Pravastatin)
Pediatric use information is approved for Kowa Co Ltd’s LIVALO (pitavastatin) tablets. However, due to Kowa Co Ltd’s marketing exclusivity rights, this drug product is not labeled with that information.