Inclusion Criteria:  Participant has a current diagnosis of Social Anxiety Disorder (SAD) as defined in DSM-5 and confirmed by Structured Clinical Interview for DSM-5 Disorders - Clinical Trials version (SCID-5-CT). Liebowitz Social Anxiety Scale (LSAS) total score of ≥70 Suitable contraception use in line with protocol requirements Ability to swallow tablets  Exclusion Criteria:  History of schizophrenia, bipolar disorder, or psychotic disorders, or has a current clinically predominant diagnosis of any other Axis I disorder, other than SAD Hamilton Rating Scale for Depression (HAM-D) score of ≥18 Moderate or severe alcohol-use disorder, or any other substance-use disorder (any severity) in the past 12 months Use of psychotropic medications within 30 days of screening. Daily use of benzodiazepines within 90 days of screening. Previous participation in a study that involved a speaking challenge. Any clinically significant medical history or findings as determined by the Investigator that could interfere with the objectives of the study or put the participant at risk