NCT03208738.

Study name	Pilot evaluation of the VetChange mobile app for veterans with PTSD who engage in problem drinking.
Methods	Randomised, open‐label, parallel‐assignment, controlled trial
Participants	Inclusion criteria: Self‐reported status as veteran Aged 18–65 years Moderate levels of non‐dependent problem drinking as determined by score on AUDIT 8–25 for men and 5–25 for women Drinking above guidelines for safer drinking during the 30 days prior to screening based on the QDS Willing to provide an e‐mail address for reminders and incentives Exclusion criteria: High alcohol problem severity
Interventions	Experimental arm 1 VetChange mobile app Experimental arm 2 Web‐based drinking AFT + VetChange mobile app + supportive accountability tool Comparator arm Assessment only
Outcomes	Time point for assessment: 8 weeks Primary outcomes: alcohol consumption (QDS), PTSD symptoms (PCL‐5) Secondary outcomes: alcohol‐related problems (SIP)
Starting date	5 July 2017
Contact information	Eric Kuhn, Clinical Psychologist VA Palo Alto Health Care System
Notes	NCT03208738