Transdiagnostic Versus Diagnosis-specific Cognitive-behavioral Therapy

This study is comparing two types of cognitive-behavioral therapy (CBT) — a talk therapy that helps people change unhelpful thought patterns — for anxiety-related disorders. One approach is tailored specifically to each diagnosis, while the other uses a single flexible method that can work across different anxiety conditions. The goal is to find out if one approach works better. **You may be eligible if...** - You are between 18 and 65 years old - You speak Swedish fluently (no interpreter needed) - You have been diagnosed with one of the following: panic disorder, generalized anxiety disorder, social anxiety, OCD, or PTSD - If you take psychiatric medication, your dose has been stable for at least 6 weeks **You may NOT be eligible if...** - You have bipolar disorder, a psychotic disorder, or moderate to severe substance use disorder - You have a moderate to severe suicide risk - You have other psychiatric, physical, or social problems that need a different type of care - You are already receiving another psychological treatment Talk to your doctor to see if this trial is right for you.