Site Influences on Treatment Effects Web-delivery of Evidence-Based, Psychosocial Treatment for Substance Use Disorders

This ancillary study is related to CTN-0044, "Web Delivery of Evidence-Based, Psychosocial Treatment for Substance Use Disorders."

Site variations in study outcomes are apparent in clinical trials conducted within the National Drug Abuse Treatment Clinical Trials Network (CTN).  Systematic and standardized collection of organizational and workforce variables may help elucidate site variations and increase the CTN’s understanding of patient outcomes in protocols.  The Web-Delivery of Evidence-Based, Psychosocial Treatment for Substance Use Disorders study (CTN-0044) will be used to assess the influence of organizational and workforce characteristics on trial operations (e.g., rates of participant recruitment and follow-up) and patient outcomes (e.g., reductions in drug use).  This study will build on the analysis of organizational and workforce data in the Baseline Protocol (CTN-0008) and the collection of pre-implementation site data for STAGE-12 (CTN-0031-A-3).  The study’s specific aim is the assessment of associations between site organizational and practitioner variables and site differences in clinical trial outcomes.


Analysis of the intention to adopt a web-delivered intervention assessed the influence of attitudes and perceived social norms. Perceived social norms were a significant contributor to clinician intention to adopt web-based interventions, while attitude was not. To promote successful implementation, it may be helpful to create social norms supportive of computer-assisted therapies.

Results Article: Buti AL, Eakins D, Fussell HE, et al. Clinician Attitudes, Social Norms and Intentions to Use a Computer-Assisted Intervention. Journal of Substance Abuse Treatment 2013;44:433–437. [get article]



Publications about CTN-0044-A-1

Greater New York (Lead) search www
(formerly Long Island) search www
Project Outreach search
Florida Node Alliance search www
The Center for Drug-Free Living, Inc. search
Mid-Atlantic search www
HARBEL Prevention and Recovery Center search
New England Consortium search www
(formerly New England) search www
(formerly Northern New England) search www
Midwestern Connecticut Council on Alcoholism search
Stanley Street Treatment and Resources Inc. search
Ohio Valley search www
Midtown Community Mental Health Center search
Pacific Northwest search www
Evergreen Manor search
Pacific Region search www
Hina Mauka search
Texas search www
Homeward Bound search
Western States search www
(formerly Oregon/Hawaii) search www
Willamette Family Inc. search

Supported by a grant from the National Institute on Drug Abuse to the University of Washington Alcohol and Drug Abuse Institute.
The materials on this site have neither been created nor reviewed by NIDA.
Updated 3/2014 --