Intersession Processes in Psychotherapeutic Treatments Using an Ecological Momentary Assessment Approach (ISA-Bell)

Recruiting now · Not applicable

Conditions studied: Depression

In brief

The effects of a monitoring intervention as an add-on to face-to-face Cognitive Behavioral Therapy (CBT) for depression are assessed in this randomised trial. Monitoring consists of Ecological Momentary Assessment (EMA) of symptoms and inter-session processes via mobile phones. Twenty sessions of face-to-face CBT + EMA are compared to twenty sessions of face-to-face CBT (treatment as usual, TAU). 84 patients with mild to moderate depression will be randomised to CBT + EMA or to TAU.

Key facts

Study ID

NCT05553197

Run by

Birgit Watzke

People needed

84

Starts

2022-11-01

Expected to finish

2026-05-31

Last updated by the study team

2025-06-25

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• ICD-10 diagnosis of mild or moderate depression, first or recurrent episode (F32.0, F32.1, F33.0, F33.1)
• PHQ-9 ≥ 5
• Possession of smartphone with internet access
• Signed informed consent

You may not qualify if…

• Acute or past suicidality; self-reported
• Acute addiction (F10 - F19)
• Dysthymia (F34.1), postpartum depression, or severe depression (F32.3; F33.3)
• PHQ-9 > 20
• Depression not main mental health concern
• Planned onset or planned change in antidepressant medication
• History of psychotic symptoms, bipolar disorder, personality disorders, or organic brain disorders
• Cognitive impairment or physical disability that would hinder psychotherapy or the use of a smartphone

Where it is running

• Psychotherapeutisches Zentrum Universität Zürich — Zurich, Canton of Zurich, Switzerland (enrolling)

Full record on ClinicalTrials.gov

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