The Unified Protocol compared with diagnosis-specific protocols for anxiety disorders: 12-month follow-up from a randomized clinical trial

To examine whether the Unified Protocol (UP) remains equivalent to single-disorder protocols (SDPs) in the treatment of anxiety disorders at 12-month follow-up. We report results from the 12-month follow-up of a recent randomized equivalence trial [1]. Data are from 179 participants (55.31% female s...

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Bibliographic Details
Published in:General hospital psychiatry 2020-11, Vol.67, p.58-61
Main Authors: Eustis, Elizabeth H., Gallagher, Matthew W., Tirpak, Julianne W., Nauphal, Maya, Farchione, Todd J., Barlow, David H.
Format: Article
Language:English
Subjects:
Adult
Anxiety disorders
Anxiety Disorders - therapy
Clinical Protocols
Cognitive-behavioral treatment
Female
Follow-Up Studies
Humans
Male
Transdiagnostic
Treatment Outcome
Unified Protocol
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Summary:To examine whether the Unified Protocol (UP) remains equivalent to single-disorder protocols (SDPs) in the treatment of anxiety disorders at 12-month follow-up. We report results from the 12-month follow-up of a recent randomized equivalence trial [1]. Data are from 179 participants (55.31% female sex, 83.24% White, average age 30.66) who met criteria for a principal anxiety disorder and were randomized to either the UP or SDP conditions. Consistent with the parent trial, the primary outcome was principal diagnosis clinician severity rating (CSR) from the Anxiety Disorder Interview Schedule (ADIS). Secondary outcomes included anxiety, depression, and impairment. Missing data were accommodated using multiple imputation (10,000 imputed data sets) under a missing at random assumption. Equivalence between the UP and SDPs was tested using slope difference scores from latent growth models and 95% confidence interval of between-condition effect sizes. The results indicated that the UP and SDP conditions remained equivalent with regard to principal diagnosis clinician severity rating at 12-month follow-up. In addition, there were no significant differences between conditions on secondary outcomes at 12-month follow-up. The UP continues to yield outcomes comparable to SDPs at 12-month follow-up, and therefore provides a single intervention that can be used to treat the most commonly occurring psychiatric disorders with durable effects.
ISSN:0163-8343
1873-7714
DOI:10.1016/j.genhosppsych.2020.08.012