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Phase II

A Phase 2 Study of BNC210 for the Acute Treatment of Social Anxiety Disorder (PREVAIL)

  • Study HIC#:2000032550
  • Last Updated:07/05/2022

The purpose of this study is to assess the effects of an acute dose of BNC210 compared to placebo on reducing anxiety provoked by a speaking challenge and measured using the Subjective Units of Distress Scale (SUDS) in patients with Social Anxiety Disorder (SAD).

  • Age18 years - 65 years
  • GenderBoth
  • Start Date06/27/2022
  • End Date10/31/2022

Trial Purpose and Description

This is a randomized, double-blind, placebo-controlled, 3-arm, parallel-group, multi-center study. Participants will attend a Screening Visit to confirm eligibility and then return to the clinic within 14 days to be randomized into the study. Randomized participants will receive a single dose of their allocated study intervention (225 mg BNC210, 675 mg BNC210 or placebo) and approximately 1 hour later participate in a speaking challenge. After 1 week, a safety follow-up assessment will be conducted by phone/video conference.

Eligibility Criteria

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


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