Transcranial Alternating Current Stimulation for Generalized Anxiety Disorder and Insomnia: An Open-Label Pilot Study

This pilot study is testing a non-invasive brain stimulation technique called transcranial alternating current stimulation (tACS) for people who have both generalised anxiety disorder (persistent, hard-to-control worry) and chronic insomnia. The device delivers gentle electrical currents to the scalp to try to improve both sleep and anxiety. **You may be eligible if...** - You are between 18 and 65 years old - You have been diagnosed with generalised anxiety disorder (GAD) - You also have chronic primary insomnia - Your anxiety and sleep scores are above clinical thresholds on standardised scales - If you take antidepressants (SSRIs or SNRIs), your dose has been stable **You may NOT be eligible if...** - You have a history of bipolar disorder or mania - You have contraindications to brain stimulation therapy - You have had active suicidal thoughts or a suicide attempt in the last 4 weeks - Your anxiety has not responded to 3 or more prior antidepressant treatments Talk to your doctor to see if this trial is right for you.