A 6-week, phase IIb, randomized, double-blind, placebo-controlled study conducted across nine research sites in China evaluated the efficacy and safety of Anyu Peibo capsules in treating Major Depressive Disorder (MDD). The study involved 86 patients, comparing Anyu Peibo capsules (0.8 g twice daily) against a placebo. While the primary outcome did not show a significant difference between the two groups, secondary outcomes indicated potential benefits of Anyu Peibo capsules, including improvements in HAMD-17 and HAMA scores. The treatment was found to be safe and well-tolerated, with a lower incidence of adverse events compared to other antidepressants.