A 6-Month, Randomized, Double-Blind, Placebo-controlled, Phase 2a Study of the Effects of HU6 on Energy Metabolism, Muscle and Liver Substrate Metabolism, and Mitochondrial Function in Subjects Who Are Overweight or Obese With Type 2 Diabetes

This is a randomized, double-blind, placebo-controlled parallel group study of HU6 and placebo in subjects who are overweight or obese with T2D.

The study will be conducted in 4 stages (Figure 1).

• Stage 1: (screening) is conducted over a 29-day window (Day -48 to Day -20). Subjects who meet all of the eligibility criteria may proceed Stages 2 to 4 of the study.
• Stage 2 (baseline [pre-randomization]) is conducted over a 19-day period prior to randomization and includes a 13-day run-in and the first 6-day inpatient assessment period. At the end of Stage 2, subjects will be randomized 1:1 to HU6 or placebo.
• Stage 3 (double-blind dosing) is conducted after randomization. Day 1 is the first dose of double-blind study drug, and dosing continues over an approximate 26-week period. During this time, there will be study visits for safety, PK, and PD. Stage 3 of the study concludes with a 3-day run-in followed by the second 6-day inpatient assessment period.
• Stage 4 (washout) is conducted after dosing has ended and includes an approximate 4-week washout duration including a 3-day run-in followed by the third inpatient assessment period (3-day duration). The last day of the 3-day inpatient stay is the end-of-study. (Note that there will be a separate early termination visit for any subject who prematurely discontinues from the study