Metacognitive Therapy vs Unified Protocol for Patients With Comorbid Anxiety Disorders

Inclusion Criteria: * Age 18 years or above * Ability to read and speak Swedish * A principal diagnosis of post-traumatic stress disorder, generalized anxiety disorder, social anxiety disorder, or panic disorder * At least one additional comorbid diagnosis (one of the above diagnoses, or obsessive-compulsive disorder, or major depressive disorder) * Patients on psychotropic medication must have been on a stable dose (excluding as-needed medication) for at least six weeks prior to treatment initiation Exclusion Criteria: * Current diagnosis of psychosis, bipolar disorder or moderate to severe substance use disorder * Medium to high suicide risk * Psychiatric, somatic or social problems that require primary intervention other than the treatments offered in the study * Concurrent psychological treatment