Effectiveness of a Mobile Texting Intervention for People With Serious Mental Illness
Phase: NA
Conditions: Schizoaffective Disorder, Schizophrenia, Bipolar Disorder, Major Depressive Disorder
Sponsor: University of Washington

Study’s Official Title: Effectiveness of a Mobile Texting Intervention for People with Serious Mental 
Illness 
NCT Number: NCT03062267 
Date of Document: 10/9/2020 
Document Title: Study Protocol with Statistical Analysis Plan 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Study Protocol  
We conducted an assessor-blind, two-arm, randomized controlled trial in partnership with assertive 
community treatment (ACT) teams providing services to individuals with serious mental illness in the 
Midwest and Pacific Northwest regions of the United States. The research was monitored by an 
independent safety monitoring board at the University of Washington’s School of Medicine. Participants 
provided informed consent. All participants were receiving ACT services and were randomly assigned to 
one of two treatment arms: mobile interventionist (ACT augmented with mobile phone texting) or 
treatment as usual (standard ACT). Interventions were deployed for 3 months. We conducted 
assessments at baseline (0 months), posttrial (3 months), and follow-up (6 months). Participants were 
compensated for completing assessments ($30 per assessment, plus reimbursement for travel).  
 
Statistical Analysis Plan 
Primary outcomes will be assessed by change in means and standard deviations of measures used. 
Secondary outcomes will be assessed by change in means and standard deviations of measures used. 
The other pre-specified outcome measure of Satisfaction with Treatment at 3 months following 
intervention period will be assessed by evaluating means and standard deviations, and comparing the 
intervention group to the control group.