Acute and Long-Term Antidepressant Treatment Success in Adolescents With Anxiety (AtLAS-A)

This study is testing antidepressant medication in teenagers (ages 12–17) who have anxiety disorders, to find out which treatments work best and for how long they should be taken. **You may be eligible if:** - You are between 12 and 17 years old - You have been diagnosed with generalized anxiety disorder, social anxiety disorder, separation anxiety, or panic disorder - You and your parent or guardian are fluent in English - A caregiver is available to help monitor your safety and medications - You have no significant abnormalities on physical exam **You may NOT be eligible if:** - You are pregnant (a negative pregnancy test is required) - You test positive for drugs on a urine screen - You are not using reliable contraception if sexually active - A responsible caregiver is not available to oversee your participation Talk to your doctor to see if this trial is right for you.