Understanding the Person, Exploring Change Across Psychotherapies

Conditions studied

Depression, Anxiety Disorders

About this study

Identifying predictors and understanding mechanisms of change will inform referral to psychotherapy, triage and right-siting by helping clinicians to understand how their patients are likely to benefit from clinical interventions. This study will be the first of its kind conducted in an Asian hospital setting to identify the predictors of response to individual, group and internet-delivered CBT for the treatment of depressed and anxious patients in the Institute of Mental Health (IMH), Singapore. With increasing challenges with hospital workload, there is an increasing emphasis on group and online interventions. Understanding of the factors that may predict outcome from these therapies can improve right-siting by identifying who will get better without therapy or who may not benefit from a given form of therapy and guide personalisation of care. An important biological predictor of outcome is likely to be genetic risk as it has been demonstrated that patients with greater melancholia and a family history may not be sufficiently treated with brief courses of therapy. Identifying psychological factors underlying psychological distress and determining the extent to which these factors are addressed by these interventions will help to improve and individualise existing psychotherapy and motivate new psychotherapeutic interventions.

Interventions

• Behavioral: Individual Psychotherapy — The individual therapy program will differ in orientation according to therapist and session notes will be coded according to the Comparative Psychotherapy Process Scale. Therapy sessions take place approximately once every fortnight, with 8 sessions in total, according to the agreed-upon schedule.
• Behavioral: Internet-delivered Cognitive Behavioural Therapy (iCBT) — The iCBT program (clinician follow-up with the therapist and 4 online modules) will be administered for 8 weeks. The four modules: "1) psychoeducation about emotions, including a functional nature of emotions; 2) alteration of antecedent cognitive misappraisals; 3) prevention of emotional avoidance; and 4) modification of emotion-driven \[behaviours\] (EDBs)", are adapted from The Unified Protocol (UP) for transdiagnostic treatment of emotional disorders. UP is a CBT consisting of four overarching themes- "increasing emotional awareness, facilitating flexibility in appraisals, identifying and preventing \[behavioural\] and emotional awareness, and situational and interoceptive exposure to emotion cues".
• Behavioral: Group Cognitive Behavioural Therapy (group CBT) — The group CBT program (for e.g. PsychUp) will be conducted over 8 weeks, with weekly 2-hour sessions. Each group consists of 4-8 patients and are facilitated by two practicing clinical psychologists and one clinical psychologist in training. Sessions are structured such that each session, except the first, begins with a brief review of previous session material and a collaborative review of homework. This is followed by introduction of new material and completion of any in-session exercises, with sessions concluding with homework assignment. Specific treatment content is similarly adapted from UP. Session 1 begins by covering psychoeducation on the CBT model of pathological depression and anxiety and the role of avoidance in maintenance of symptoms. Sessions 2 to 7 covers goal-setting, cognitive reappraisal and development of adaptive emotional coping strategies through situational emotion-focused exposures. Session 8 ends with a discussion on relapse prevention.

Primary outcomes

• Change in Patient Health Questionnaire-9 (PHQ-9) score (Immediately before each therapy session for 8 sessions (i.e. 8 weeks for iCBT and group therapy, or approximately 16 weeks for individual therapy), and at follow-up every 3 months up to 2 years.)
• Change in Generalized Anxiety Disorder-7 (GAD-7) questionnaire score (Immediately before each therapy session for 8 sessions (i.e. 8 weeks for iCBT and group therapy, or approximately 16 weeks for individual therapy), and at follow-up every 3 months up to 2 years.)
• Change in Outcome Rating Scale (ORS) score (Immediately before each therapy session for 8 sessions (i.e. 8 weeks for iCBT and group therapy, or approximately 16 weeks for individual therapy).)
• Change in Work and Social Adjustment Scale (WSAS) score (At baseline, at post-intervention (immediately after the final therapy session i.e. at 8 weeks for iCBT and group therapy, or at approximately 16 weeks for individual therapy), and at follow-up every 3 months up to 2 years.)

Eligibility information

Study locations

• Institute of Mental Health, Singapore, Singapore, Singapore 539747 Singapore