Online Intensive Short-Term Dynamic Psychotherapy for Treatment-Resistant Somatic Symptom Disorder: An Interrupted Time-Series Study.

Among completers (n = 22), 59% achieved minimal clinically meaningful improvement (≥3 PHQ-15 points), 27% showed ≥30% reduction, and 14% met recovery criteria.

Secondary outcomes showed significant pre-post improvements in depression (d = 0.68) and anxiety (d = 0.42), while trauma symptoms and emotion regulation showed small, non-significant changes (d ≤ 0.30).

Gains were largely maintained at 12-week follow-up.