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Can an App Help Teenagers with Depression? This Clinical Trial Found Something Promising

20 April 2026·1 min read

What if you could access effective therapy for depression without leaving the house — and without waiting months on a public health waitlist? That's the idea behind computerised CBT, and a 2017 UK clinical trial put it to the test with teenagers.

Researchers trialled a program called Stressbusters — an eight-session online CBT course designed specifically for 12–18 year olds with low mood or depression. They compared it against a control group who were pointed to general self-help websites. Four months later, the teens who completed Stressbusters showed meaningful reductions in depression symptoms. The group using generic websites got worse.

This matters for a few reasons. First, depression in teenagers is common and often goes untreated — partly because there aren't enough clinicians, partly because teens don't always want to sit in a therapy room. Second, it confirms that the active ingredient — the CBT skills themselves — can be delivered digitally and still make a real difference.

Of course, online tools work best alongside professional support, not instead of it. But for teenagers who are struggling and not sure where to start, this research shows there are options.

If you're a young person feeling persistently low, or a parent who's worried, speaking to a psychologist is always a good first step.

Source paper

Computerised cognitive–behavioural therapy for depression in adolescents: feasibility results and 4-month outcomes of a UK randomised controlled trial · DOI: 10.1136/bmjopen-2016-012834