A feasibility trial of olanzapine for young people with Anorexia Nervosa (OPEN): clinicians' perspectives

BackgroundThe OPEN feasibility trial testing olanzapine in anorexia nervosa (AN) in young people (YP) was not successful due to poor recruitment. This study aims to understand clinicians' views and experiences of using olanzapine in AN and the challenges in implementing the trial in National Health Service (NHS) clinical settings.MethodsWe conducted qualitative interviews with eating disorders (ED) clinicians involved with the study (n = 11). Framework analysis was applied to qualitative data to identify barriers and facilitators to recruitment and study implementation. A web-based semi-structured Qualtrics survey was administered to ED clinicians (n = 24). Findings from the survey were used to corroborate and expand on the information derived from qualitative interviews.ResultsQualitative analysis identified four main themes: (1) Acknowledging Service User (SU) / Family Concerns, (2) Prioritising person-centred care, (3) Limited Service Capacity and (4) Study eligibility criteria. Subthemes are outlined accordingly. Clinicians appeared confident addressing SU concerns around olanzapine in clinical discussions, but timing was critical, and olanzapine was considered one aspect of treatment that needed to align with their holistic approach. Service pressures restricted opportunities for recruitment and the ability to offer regular review. At the same time, some YP were ineligible for the trial, as they were already taking olanzapine, or needed to be prescribed it more promptly than the study procedures allowed. Survey findings underlined confidence in prescribing and informing on olanzapine, the various possible benefits of olanzapine besides weight gain, and the importance of therapeutic alliances and informed consent. Both data sets highlight the need for further evidence on long-term safety, side effects and efficacy of olanzapine use for AN. Where clinical service capacity is at a premium, research implementation is not prioritised, particularly in intensive clinical settings.ConclusionsFindings provide first-hand insight into individual and systemic challenges with research implementation in the NHS, which need to be considered when designing future clinical research studies. We emphasise a person-centred approach when discussing olanzapine to consider a holistic recovery from AN beyond weight-gain as an isolated outcome for improvement. Although olanzapine, an atypical antipsychotic medication, is commonly used in eating disorder services across the world, it is not currently recommended by clinical guidelines in the United Kingdom. We interviewed clinicians working in eating disorder services that took part in a research study looking at olanzapine for young people with anorexia nervosa (AN), and published a survey asking clinicians about their experiences with and views on using olanzapine for AN. The lack of official long-term evidence concerned both clinicians and services users (SU)s. Many clinicians suggested that people with AN might be fearful of weight-gain as a side effect from olanzapine and therefore declined to take part in the study. Having a good relationship built on trust and consistency was deemed very important by clinicians to talk about medication and to provide good health care that focuses on the needs of SUs. Clinicians explained that it was a challenge to introduce the study to SUs in their day-to-day work, as mental health services are increasingly overburdened. Clinicians were also clear that SUs should only be prescribed olanzapine within the study if it was at the right time for them and fitted their treatment pathway.