The Aarhus Bereavement Study (TABs): A Randomized Controlled Trial of the Efficacy of Compassion-Focused Therapy for Prolonged Grief Symptoms in Bereaved Adults

Prolonged grief disorder (PGD) is a novel diagnostic entity proposed to describe a psychiatric disorder that occurs after the loss of a loved one. The disorder is to be implemented in The International Classification of Diseases 11th Revision (ICD-11), scheduled for release in 2018. Failure to recognize and treat PGD may have negative effects on health, functional capacity and quality of life. However, very little is known about the characteristics and treatment of PGD in adult Danish populations although such knowledge is much needed before introducing the disorder in Danish health services.

The present study aims to develop, test and disseminate a group-based treatment manual for PGD in bereaved partners and their adult children. People with high levels of symptoms will be recruited from a large-scale survey study examining frequency, predictors and prognosis of PGD symptoms (NCT03049007). Participants will be randomized to group-based compassion-focused therapy (CFT) for grief or a waitlist control group. Treatment effects will be estimated with prolonged grief symptoms as the primary outcome. Secondary outcomes include depressive symptoms, posttraumatic stress symptoms, symptoms of anxiety, and quality-of-life. The investigators expect that CFT will yield statistically significant effects on prolonged grief symptom compared with the waitlist control group. If CFT is shown to be efficacious in reducing prolonged grief symptoms, the investigators will conduct moderation and mediation analyses with the aim of identifying what works, for whom. Finally, the investigators will perform cost-effectiveness analyses by linking the data with healthcare utilization data from the Danish National registries.