This is a double-blind, randomized, placebo-controlled, and parallel study. The study is comprised of three main phases: a single-blind placebo run-in qualifying phase lasting about 14 days, a double-blind treatment phase of 12 weeks, and a 2-week follow-up phase. Approximately 18 patients will be enrolled and randomly assigned to receive placebo or 1,000 mg of extended-release Ranolazine twice-daily for 12 weeks to reach 14 evaluable patients at the end of the study.~Patients with chronic angina pectoris will be screened for eligibility after providing informed consent. Patients present with the symptoms of stable angina after withdrawn from other antianginal agents and given the required background therapy for at least 5 days will be qualified for entering this study and performing 1st ETT qualifying test.
This is a double-blind, randomized, placebo-controlled, and parallel study. The study is comprised of three main phases: a single-blind placebo run-in qualifying phase lasting about 14 days, a double-blind treatment phase of 12 weeks, and a 2-week follow-up phase. Approximately 18 patients will be enrolled and randomly assigned to receive placebo or 1,000 mg of extended-release Ranolazine twice-daily for 12 weeks to reach 14 evaluable patients at the end of the study.