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Assessing Models of Exposure Therapy

This study is ongoing, but not recruiting participants.
Utah State University
Information provided by (Responsible Party):
Nate Gruner, Mclean Hospital Identifier:
First received: August 22, 2012
Last updated: March 26, 2017
Last verified: March 2017
The objective of this study is to learn how to improve treatment for clients who are working hard in treatment at the McLean Hospital Obsessive Compulsive Disorder Institute (OCDI), but who are not making the progress that would typically be expected. Therefore, the investigators will be comparing the performance of such clients in a treatment as usual (TAU)-Exposure and Response Prevention (ERP) session with their performance in an Acceptance and Commitment Therapy (ACT)-focused ERP session that follows an ACT booster session. The investigators hypothesize that clients will perform significantly better in the ACT-focused ERP session than they will in the TAU-ERP session. More specifically, the investigators hypothesize that clients and an independent rater will report that in the ACT-focused ERP session, clients performed significantly fewer rituals and/or avoidance behaviors, exerted significantly more effort, had significantly less difficulty getting started with the ERP, were significantly less influenced by their uncomfortable thoughts/feelings, were significantly more willing to experience discomfort, were significantly more focused on working towards what is important to the client. The investigators also hypothesize that an independent rater will rate clients as significantly more compliant with the ACT-focused ERP session than with the TAU-ERP session. The investigators also hypothesize that clients will rate the ACT-focused ERP session as significantly more preferable and acceptable than the TAU-ERP session, and that they will report being significantly more willing to do the ACT-focused ERP session again.

Condition Intervention
Obsessive-compulsive Disorders and Symptoms Behavioral: ACT-Focused ERP Behavioral: TAU-ERP

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Assessing Models of Exposure Therapy

Resource links provided by NLM:

Further study details as provided by Nate Gruner, Mclean Hospital:

Primary Outcome Measures:
  • Client Post-ERP Session Questions (Day 1). [ Time Frame: Client Post-ERP Session Questions (Day 1) will be administered immediately after the "Day 1" TAU-ERP session. ]
  • Client Post-ERP Session Questions (Day 2). [ Time Frame: Client Post-ERP Session Questions (Day 2) will be administered immediately after the "Day 2" ACT-focused ERP session. ]

Estimated Enrollment: 30
Study Start Date: September 2012
Estimated Study Completion Date: August 2017
Estimated Primary Completion Date: August 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: ACT-Focused ERP
One Session.
Behavioral: TAU-ERP
Active Comparator: TAU-ERP
One Session.
Behavioral: ACT-Focused ERP


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Participants will be adults at least 18 years of age currently enrolled in the residential or day treatment program at the OCDI.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01679457

United States, Massachusetts
Obsessive Compulsive Disorder Institute at McLean Hospital
Belmont, Massachusetts, United States, 02478
Sponsors and Collaborators
Mclean Hospital
Utah State University
Principal Investigator: Nate G Gruner, LICSW Mclean Hospital
  More Information

Responsible Party: Nate Gruner, Staff Behavior Therapist, Mclean Hospital Identifier: NCT01679457     History of Changes
Other Study ID Numbers: 2012-P-001010/1; McLean
Study First Received: August 22, 2012
Last Updated: March 26, 2017

Additional relevant MeSH terms:
Compulsive Personality Disorder
Obsessive-Compulsive Disorder
Personality Disorders
Mental Disorders
Anxiety Disorders processed this record on August 23, 2017