Abstract: The application relates to methods of treatment and treatment regimens for Alpha-1 Antitrypsin deficiency (AATD) and the conditions, manifestations, and diseases caused by AATD, by the administration of one or more expression-inhibiting oligomeric compounds having a nucleobase sequence complementary to a coding sequence in the Alpha-1 Antitrypsin (A1AT or AAT) gene that inhibits the expression of the AAT gene, in combination with one or more autophagy enhancing agents that enhance and/or induce the endogenous autophagy mechanism to facilitate and encourage clearance of polymerized mutant AAT protein accumulated in the endoplasmic reticulum of hepatocytes.