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The use of D-Cycloserine in combination with exposure therapy to treat social anxiety

A randomised controlled trial to evaluate the effect of D-Cycloserine in combination with exposure therapy in the treatment of social phobia to improve the severity of social phobia symptoms

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12606000352505
Enrollment
40
Registered
2006-08-16
Start date
2006-05-20
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study tests whether d-cycloserine improves the effectiveness of exposure therapy for decreasing social anxiety symptoms. We predict that individuals from the community diagnosed with social phobia who receive four exposure therapy sessions in comdination with D-Cycloserine will experience a greater reduction in social anxiety symptoms than individuals who receive placebo in combination with four exposure therapy sessions. Participants receive five weekly group therapy sessions. the first session is educational and the next four consist of public speaking exposure therapy. One month post intervention participants are assessed for social anxiety symptoms as well as other general health indicators. All subjects, therapists, assessors and data entry research staff are blind to condition.

Interventions

Participants with social phobia are given exposure therapy over 5 once per week weekly treatment sessions in combination with D-cycloserine (50mg) in capsule form to be swallowed orally. Exposure therapy consists of 3 to 10 minute speech tasks in front of a group (some decrease in anxiety should be observed).

Sponsors

University of New South Wales
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Primary diagnosis of Social Phobia.

Exclusion criteria

Epilepsy, severe kidney disease, Suicide intent, substance dependence, use of contra-inidcated medications, pregnancy.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026