Generalized Anxiety Disorder Clinical Trial
Official title:
Feasibility of Low-Intensity Focused Ultrasound Pulsation (LIFUP) for the Treatment of Generalized Anxiety Disorder (GAD)
There are few treatment options available for patients once they have failed standard psychopharmacological therapy for generalized anxiety disorder. Existing brain stimulation methods such as rTMS fail to target deep brain structures associated with anxiety disorders; structures such as the amygdala. In this double-blind sham-controlled clinical trial, the investigators propose to establish baseline severity of anxiety in 48 patients, then deliver eight treatments over four sessions of focused ultrasound stimulation to the amygdala. Anxiety severity will be assessed using standard psychometric scales after each session, and at follow-ups.
Anxiety disorders have tremendous disease burden in the United States. Up to 1 in 3 Americans will be diagnosed with an anxiety disorder in their lifetimes. Anxiety treatment is typically consisting of psychotherapy (e.g. cognitive behavioral therapy) and medication management (e.g. benzodiazepines, selective serotonin reuptake inhibitors, etc). With major depressive disorder, rTMS is a suitable alternative treatment for refractory depression, rTMS is not approved for treatment of anxiety, nor can rTMS stimulate deep enough to reach those brain circuits involved in anxiety (e.g. the amygdala). Focused ultrasound is a new treatment modality being developed for several different neuropsychiatric conditions. In this study, the investigators propose to randomize 48 individuals to either active or sham treatment. Each participant will be evaluated to establish a baseline diagnose of generalized anxiety disorder, and then will be reassessed after each treatment session (of which there are four). One week and one month after the last treatment session, the investigators will conduct follow-up evaluations. ;
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