The A-One study is a prospective, randomized controlled trial evaluating the use of the One Drop | Premium 'On Track' in combination with Afrezza treatment on the glycemic control, treatment adherence, social-cognitive barriers to adherence, and treatment satisfaction of people with Type 2 diabetes (T2D) and a hemoglobin A1c (A1c) of 7.5-10.5% already prescribed an injectable rapid-acting insulin.