In the article “A Randomized Controlled Clinical Trial of Psychoanalytic Psychotherapy for Panic Disorder” (Am J Psychiatry 2007; 164:265–272), the clinical trial registration is incorrect. The trial can be found by going to www.clinicaltrials.gov, selecting focused search, and entering the following number: NCT00128388. Also, in the Results section of this article, a copyediting error resulted in an incorrect p value being reported. The fourth sentence in the section “Comparative Efficacy” should read as follows: “…panic-focused psychodynamic psychotherapy had a significantly higher response rate than applied relaxation training (73% versus 39%; p=0.016).”