In a randomized clinical trial including older bereaved adults, group-format grief-focused cognitive behavioral therapy (ProlongedGriefDisorder) was noninferior to individual therapy for reducing symptoms of prolonged grief, posttraumatic stress disorder, depression, and anxiety at 6 months.

Both formats produced large reductions in symptom burden, suggesting either delivery method is effective for older adults seeking treatment after loss.

This study examines whether cognitive behavioral therapy delivered in a group format is noninferior to cognitive behavioral therapy delivered in an individual format in reducing prolonged grief disorder symptoms in older adults.