QUILT-1.004: A Single Center, Open-label, Pharmacokinetic Study of Subcutaneous ALT-803

Subjects randomized to Group A will receive ALT-803 at a concentration of 1.0 mg/mL and subjects randomized to Group B will receive ALT-803 at a concentration of 2.0 mg/mL. Subjects will receive a single 10 µg/kg subQ dose of ALT-803 on Day 1 of study period 1. After a rest period, subjects will receive a single 20 µg/kg subQ dose of ALT-803 on Day 1 of study period 2.