On January 29, the 15th subject was enrolled in our ongoing study in 24 U.S. veterans, fire fighters, and police officers with chronic, treatment-resistant PTSD. This will also be the first subject enrolled in our new brain imaging and heart rate sub-study, which will use heart rate variability (HRV) and functional magnetic resonance imaging (fMRI) to measure the physiological effects of MDMA-assisted psychotherapy and explore correlations between those effects and clinical outcomes. Nine subjects have now completed the study following their one-year follow-up. The regularly scheduled site monitoring visit was completed from January 17-20. As of January 31, the site had received 496 participation inquiries.