This is a single center, single arm, prospective, 12 week open label pilot trial of the sodium-glucose cotransporter 2 inhibitor (SGLT2i), empagliflozin 10 mg oral daily, in patients with transthyretin amyloid cardiomyopathy (ATTR-CM). The target population for enrollment will be subjects with ATTR-CM and either non-insulin dependent diabetes mellitus or chronic kidney disease. The primary aim will be to assess the safety and tolerability of empagliflozin 10 mg oral daily in subjects with heart failure secondary to ATTR, which remain unexplored. The accrual target is 15 subjects. Consented subjects will be evaluated for safety and tolerability of study drug, empagliflozin 10 mg oral daily, over a period of 12 weeks. Subjects will undergo a total of 6 study visits: 3 in-person and 3 telephone follow-ups.