Efficacy, Safety, and Tolerability of Perhexiline in Subjects With Hypertrophic Cardiomyopathy and Heart Failure

perhexiline maleate, oral, 25mg or 100mg tablets Whenever initiating PHM therapy, subjects will receive a loading regimen of PHM as indicated in in the Heart Metabolics Dose Justification document. Drug levels will be measured first on Day 4 +/- 1 day, with an initial dose adjustment performed on Day 7 +/- 1 day, as needed. The next sampling will occur on Day 21 +/- 1 day for potential dose adjustment, as advised by the DCC, on or about Day 24. Subsequent dosing will be monitored and advised by a Dose Control Center