Interpersonal distress as a criterion for personalizing depression therapy.

Area of Science:

• Psychiatry
• Clinical Psychology
• Psychotherapy Research

Background:

• Depression treatment efficacy can be influenced by patient characteristics.
• Interpersonal distress is a common issue in patients with depression.
• Personalized treatment approaches may enhance therapeutic outcomes.

Purpose of the Study:

• To investigate interpersonal distress as a moderator in depression treatment.
• To compare the effects of Supportive Treatment (ST) and Supportive Expressive Treatment (SET) on therapeutic alliance and outcomes.
• To explore personalized intervention strategies for depression.

Main Methods:

• Randomized controlled trial with 100 depressed patients receiving 16 sessions of ST or SET.
• Baseline assessment of interpersonal problems.
• Measurement of therapy outcome and therapeutic alliance via patient self-report.
• Analysis using interactive three-level mixed effect models.

Main Results:

• Significant interaction between treatment type and baseline interpersonal problems on outcome and alliance.
• Patients with higher interpersonal problems showed greater improvement with SET compared to ST.
• SET led to greater reduction in depressive severity and improved alliance in this subgroup.

Conclusions:

• Interpersonal distress moderates the effectiveness of ST versus SET in depression.
• SET may be a more suitable intervention for depressed patients with significant interpersonal problems.
• Baseline assessment of interpersonal distress can inform personalized depression treatment decisions.