Ten-week Intensive Group Program (IGP) for borderline personality disorder: making the case for more accessible and affordable psychotherapy.

Background: The availability of specialist psychotherapies for treating borderline personality disorder (BPD) is limited by costs associated with training, resourcing and treatment duration. Developing a programme that incorporates effective strategies from a range of evidence-based specialist treatments, concentrates their delivery and uses a group-based format will improve treatment access.

Objective: To assess the short-term clinical efficacy, acceptability and feasibility of a bespoke manualised programme for the treatment of BPD. This 10-week group-based outpatient programme was delivered 2 days per week in 4 hour sessions; participants received 80 hours of treatment in total.

Methods: Forty-three participants, many having severe BPD symptomatology, were assessed before and after the 10-week programme using a range of validated self-report questionnaires and a self-appraisal feedback form. The primary outcome measured was BPD symptom severity.

Findings: Statistically significant improvements were measured in BPD symptom severity, depression, trait anxiety, emotional regulation, general health, hopefulness, self-compassion and anger, several with moderate to large effect sizes. Many of these improvements remained at 4-6 months post treatment. More than 90% of surveyed participants expressed a moderate or high level of satisfaction with the programme.

Conclusions: This integrated treatment programme delivered in a highly concentrated format demonstrated short-term efficacy across many BPD-relevant endpoints; its acceptability was endorsed by most clients.

Clinical implications: Incorporation of key aspects of evidence-based treatment using a time-intensive group format could greatly enhance the capacity of mental health services to meet the needs of people who experience BPD within a population-based mental health service framework.