All patients in the trial will be eligible to receive a full course of CBT by study end. Participants in this study will be randomly assigned to receive CBT, I-CBT or continued medication management. All participants will continue their SRI treatment for 12 weeks. After the 12-week treatment period, participants who received I-CBT or medication management alone and who remain symptomatic will be given CBT as will participants who are asymptomatic but relapse within 6 months after treatment. Assessments will be conducted at Weeks 0, 4, 8, and 12. Follow-up assessments will be conducted at 3 and 6 months post-treatment.