IRCT201701304076N20 IRCT 2017-08-07 Vice chancellor for research, Islamic Azad University, Central Tehran Branch Effect of acceptance and commitment therapy on depression Effectiveness of acceptance and commitment therapy on reducing depression among people living with HIV/AIDS 2016-04-19 anticipated 24 Complete https://irct.ir/trial/4264 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive. 2 Condition 1: HIV/AIDS. Condition 2: Depression. Intervention 1: Intervention group: Intervention group participants receive eight training sessions of ACT that each session lasts 60 minutes. In summary, Goals of therapy sessions include: session 1) Making therapeutic relationship, Introducing the creative hopelessness. session 2) Helping clients recognize the dysfunctional control strategies and finding out the futility of them, Explaining differences between clean and dirty discomfort. session 3) Discussing about “Control is the problem, not the solution”, Introducing the acceptance (willingness) concept. session 4) Training mindfulness practices, Introducing the cognitive defusion. session 5) Continuing mindfulness practices, Introducing the conceptualized self and self as context. session 6) Continuing mindfulness practices, Introducing the value concept. session 7) Continuing mindfulness practices, Identifying goals and behavior models for reaching values. session 8) Continuing mindfulness practices, Emphasizing the committed action, Summarizing group therapy sessions. Intervention 2: Control group: There is no intervention for control group.