Department of Psychiatry
Penn Behavioral Health

Center for the Treatment and Study of Anxiety

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Welcome to the CTSA

The Center for the Treatment and Study of Anxiety at the University of Pennsylvania is...

An internationally renowned treatment research center dedicated to developing, refining, and testing state-of-the-art therapies for anxiety and traumatic stress disorders.

A world recognized clinic, which provides evidence-based cognitive-behavioral therapy to children, adolescents, and adults with anxiety disorders.

A well-established resource for professionals, offering specialized training in the treatment of anxiety disorders to health professionals around the world.

We welcome referrals from professionals and inquiries directly from patients.


CTSA in the News

March 2015: CTSA Featured in ABC's "20/20"

ABC News aired a "20/20" segment on exposure therapy for emetophobia, featuring a former CTSA patient who was treated at the clinic by Dr. Steve Tsao, a CTSA faculty member. Watch the segment here.



January 2015: Dr. Edna Foa, CTSA Director, Receives APA Award

The American Psychological Association named Edna Foa, PhD, as the 2015 recipient of the APA Award for Distinguished Scientific Contributions. Dr. Foa was recognized for her unparalleled contributions to the fields of treatment research and anxiety. Read more about the award and Dr. Foa's groundbreaking work here.


November 2014: Dr. Edna Foa Honored for PTSD Research

Dr. Edna Foa, Director of the CTSA, was awarded the Scientific Research Award from the Montgomery County, PA chapter of the National Alliance on Mental Illness (NAMI) in November 2014. Read more about the award in the November 2014 issue of Penn Psychiatry Perspective.


CTSA launches Youtube Channel

The Center has launched a Youtube channel dedicated to sharing videos from workshops, trainings, and lectures, as well as discussion topics related to new research and evidence-based treatment of anxiety.  To view videos, check our our CTSA Youtube Channel.  


TIME Magazine Honors Dr. Edna Foa, Center Director

TIME magazine named Edna Foa, PhD, to the 2010 TIME 100, the magazine's annual list of the 100 most influential people in the world. Dr. Foa was recognized for her outstanding contributions in the area of treatment research for posttraumatic stress disorder (PTSD). Read more about Dr. Foa's accomplishments...

Studies and

Treatment Study for Adults with Obsessive-Compulsive Disorder (OCD)

We are currently enrolling adults between 18 and 75 who are experiencing symptoms of Obsessive-Compulsive Disorder and who are currently taking medication for their OCD. Please contact Natalie for more information at 215-746-3327, or click here for more information.

Training Opportunities for Professionals


The Center for the Treatment and Study of Anxiety offers a number of professional workshops for mental health practioners who are looking to extend their training in empirically-supported treatments for anxiety disorders. Our current workshop offerings include Prolonged Exposure (PE) for PTSD, PE Supervisor Workshops, and Exposure and Response Prevention (EX/RP) for OCD. Please visit our Information for Professionals page to learn more about our training opportunities.

Volunteer Opportunities


The CTSA is actively recruiting volunteers for the 2015 academic year! For more information on the position and what we are looking for, please feel free to visit our Volunteer Opportunities page.