Study to Evaluate the Efficacy and Safety of VQW-765 for the On-Demand Treatment of Social Anxiety Disorder

Inclusion Criteria: 1. Ability and willingness to provide written informed consent. 2. Male and female subjects aged 18-65 years, inclusive. 3. Current diagnosis of social anxiety disorder. 4. Liebowitz Social Anxiety Scale total score ≥60. 5. Public Speaking Anxiety Scale total score ≥60. 6. Hamilton Depression Rating Scale score ≤18. Exclusion Criteria: 1. Suicide attempts and/or suicidal ideation in the past 2 years or currently at risk of suicide in the opinion of the investigator. 2. History of bipolar disorder, schizophrenia, psychosis, seizures, delusional disorders, obsessive-compulsive disorder, or autism spectrum disorder. 3. Posttraumatic stress disorder or an eating disorder in the past 6 months. 4. Substance or alcohol use disorder in the past 6 months or positive in drug/alcohol screening. 5. Psychotherapy in the past 6 months. 6. Psychotropic medication in the past 2 months. 7. Current or planned pregnancy or nursing during the trial period. 8. Any other reason as determined by the Investigator which may lead to an unfavorable risk-benefit of study participation, or interference with study objectives.