The final report from the ACTIVATE study has just been published. The ACTIVATE study evaluated ACT Vet, a smartphone-delivered Acceptance and Commitment Therapy (ACT) application designed for UK Armed Forces veterans experiencing PTSD and gambling harm. The app, co-designed with veterans and experts, delivers a structured, self-guided programme to build upon psychological flexibility through core ACT components. It included ACT-based modules, breathing exercises, reflection prompts, and support signposting.

Outcome measures were collected across five time points. Key findings were:

• Psychological flexibility significantly increased.
• PTSD symptoms significantly reduced.
• Gambling urges halved.
• Mediation analysis showed that increased psychological flexibility reduced gambling urges by firstly reducing negative PTSD symptoms.
• Secondary outcomes showed improvements in alcohol use, quality of life, suicidality, and loneliness.
• App usability was rated highly.

Follow-up interviews highlighted the app’s simplicity, helpful structure, and calming features. Veterans valued its ease of access and support during distressing moments.

Overall, ACT Vet is a promising digital tool for veterans with PTSD and gambling harm, with early evidence of feasibility, engagement, and clinical benefit.

Download the full report here.

The report has been produced with funding from the Office for Veterans' Affairs in 2023 as part of an independent research initiative. The views, findings, and conclusions expressed herein are those of the authors and do not reflect the policies or positions of the UK Government.