Major Depressive Disorder
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 18-24 2. Elevated worry/rumination, defined as scoring above the 75th percentile on at least one of two standard questionnaire measures of worry/rumination 3. Able to understand written English to engage with the intervention 4. Private internet access to ensure confidentiality 5. In line with standard practice, participants currently receiving antidepressant medication will be eligible, provided the dosage has been stable for at least the previous month
Exclusion criteria
Exclusion criteria: 1. Meeting diagnostic criteria for a current (within past month) major depressive episode 2. Current and significant substance abuse or dependence 3. Current symptoms of psychosis or bipolar disorder 4. Current psychological therapy 5. Active suicide risk
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Onset of a major depressive episode and/or generalized anxiety disorder over a 12-month period, assessed with Structured Clinical Interview for Diagnosis 3 months (post-intervention), 6 months, and 15 months after randomisation. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes will be collected on: 1. Symptoms of depression and anxiety; levels of worry and rumination, measured at baseline, 3, 6, and 15 months post-randomisation 2. Feasibility and acceptability of data collection procedures, levels of attrition, effect size and acceptability of the unguided internet RFCBT intervention. | — |
Countries
United Kingdom