Publications by authors named "Jon Arcelus"

Background: High-risk patients with complex anorexia nervosa are managed in inpatient/day patient care, but re-admission rates are high, and new treatments are needed.

Objective(s): To examine the effectiveness of a digital augmentation of aftercare (ECHOMANTRA).

Design: Transition Care In Anorexia Nervosa through Guidance Online from Peer and Carer Expertise was a multicentre, parallel-group, superiority randomised controlled trial.

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Background: A substantial proportion of anorexia nervosa patients require intensive treatments, commonly inpatient or day-patient treatment. The relative merits of these treatments for adults with anorexia nervosa are unknown. Therefore, a trial investigating the clinical effectiveness and cost-effectiveness of inpatient treatment-as-usual versus a stepped-care day-patient approach in adults with anorexia nervosa (DAISIES) was commissioned.

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Objective: Despite an increase in eating disorder (ED) cases during the COVID-19 pandemic, there are limited longitudinal studies exploring treatment outcomes. The aims of the present study were: (1) to compare the clinical features of patients with EDs whose onset was during the COVID-19 lockdown (pandemic cohort) against patients with EDs whose onset was prior to the pandemic (pre-pandemic cohort) and, (2) to compare therapy responses between the cohorts.

Method: The sample consisted of 115 adult women with an ED.

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Objective: We developed ECHOMANTRA, a digital guided intervention for patients with anorexia nervosa and their carers to provide support during transition from inpatient care to community settings. This study reports on participants' engagement with, and feedback of, ECHOMANTRA.

Method: Patients and carers (N = 184 dyads) were given access to ECHOMANTRA for 12 months.

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Background: There is uncertainty regarding how best to support patients with anorexia nervosa following inpatient or day care treatment. This study evaluated the impact of augmenting intensive treatment with a digital, guided, self-management intervention (ECHOMANTRA) for patients with anorexia nervosa and their carers.

Methods: In this pragmatic multicentre randomised controlled trial and economic evaluation, patients with a diagnosis of anorexia nervosa or atypical anorexia nervosa, aged 16+ and attending one of the 31 inpatient or day-patient services in the UK were randomised with one of their carers to receive ECHOMANTRA plus treatment as usual (TAU), or TAU alone.

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Background: Adults with anorexia nervosa experience high levels of relapse following in-patient treatment. ECHOMANTRA is a novel online aftercare intervention for patients and carers, which provides psychoeducation and support to augment usual care.

Aims: To explore patient and carer experiences of receiving the ECHOMANTRA intervention.

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Objective: The relative merits of inpatient or day-treatment for adults with anorexia nervosa (AN) are unknown. The DAISIES trial aimed to establish the non-inferiority of a stepped-care day patient treatment (DPT) approach versus inpatient treatment as usual (IP-TAU) for improving body mass index (BMI) at 12 months in adults with AN. The trial was terminated due to poor recruitment.

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Introduction: Compulsive exercise is a transdiagnostic feature of eating disorders which adversely affects aspects of recovery, such as length of hospitalisation, risk of a chronic outcome, and risk of relapse. CompuLsive Exercise Activity TheraPy (LEAP) aims to reduce compulsive exercise through a cognitive behavioural approach. This study aims to investigate the effect of LEAP on compulsive exercise behaviour using subscales of the Compulsive Exercise Test (CET), a measure of exercise in individuals with eating disorders.

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Anorexia nervosa (AN) is a mental health disorder that has serious physical, emotional and social consequences. Whilst cognitive behavioural therapy for AN (CBT-AN) has demonstrated efficacy, there remains a global need to improve AN treatment. Compulsive exercise activity therapy (LEAP) is an active therapy consisting of the addition to CBT-AN of eight specific sessions that focus on exercise and motivation for behavioural change.

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Objective: This research forum describes the use of the intervention mapping for adaptation (IMA) framework to develop and evaluate a novel intervention for athletes with mild eating disorder (ED) symptoms.

Methods: The six IMA steps were followed. In step 1 (needs assessment), we conducted a systematic review of athlete ED interventions and held interviews/focus groups with athletes and sports professionals to inform intervention format and delivery.

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A description of the meaning and terminology as well as population estimates of nonbinary gender identities is given. Respectful use of language, names and pronouns of people who identify as nonbinary is discussed. The chapter further includes the need for access to gender-affirming care and barriers to care; gender-affirming medical treatment interventions, including hormone treatment, speech and language therapy, hair removal and surgeries for bodies assigned female at birth (AFAB) and for bodies assigned male at birth (AMAB); and the importance of fertility preservation for this specific patient population.

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Introduction: Identities that lie outside of exclusively male and female, such as non-binary and genderqueer, have become increasingly more prevalent and visible within recent years. However, to date, the role of terminology in the development of such gender identities has been under-researched. This study aims to: (1) Examine what role terminology plays in coming to identify as non-binary.

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Objective: The DAISIES trial, comparing inpatient and stepped-care day patient treatment for adults with severe anorexia nervosa was prematurely terminated in March 2022 due to poor recruitment. This qualitative study seeks to understand the difficulties faced during the trial by investigating stakeholders' views on and experiences of its implementation.

Method: Semi-structured interview and focus group transcripts, and trial management and oversight group meeting minutes from May 2020-June 2022 were analysed using thematic analysis.

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While positive changes in mental health have been found following gender-affirming hormone treatment (GAHT), it is unclear how pre-GAHT mental health and social support can influence treatment outcomes. To address this, a retrospective longitudinal design was used in which 137 participants completed measures of social support, anxiety, and depression prior to GAHT (T0) and a measure of life satisfaction 18 months after GAHT (T1). The data showed no significant differences in life satisfaction at T1 based on T0 caseness of anxiety or depression.

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This study was the first to determine whether it was feasible and acceptable to use experience sampling methods (ESM) among LGBTQ+ young people, who had current experiences of self-harm. Sixteen LGBTQ+ young people (16-25 years old) took part in the experience sampling study. This included a baseline assessment, a 7-day ESM assessment (participants were sampled six times a day using a phone app), and the option of an interview at the end of the 7-day ESM assessment.

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Background: Relapse rates for individuals with anorexia nervosa after intensive hospital treatment (in-patient or full-time day care) are high. Better knowledge about the difficulties and opportunities that arise during this transition is needed to identify factors that support or hinder continued recovery upon discharge.

Aims: The aim of this study was to explore the experiences of adult patients and their chosen carers on the process of transitioning from intensive eating disorder treatment settings to the community.

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Background: The COVID-19 pandemic has significantly affected intensive treatment settings (i.e., inpatient [IP] and day patient [DP]) in specialist eating disorder services.

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Objective: The primary aim was to assess the feasibility of undertaking a study evaluating the novel Motivational and Psycho-Educational Self-Help Programme for Athletes with Mild Eating Disorder Symptoms (MOPED-A). A mixed-methods approach was adopted to explore the feasibility of recruiting and retaining participants, and to evaluate the acceptability of measures, procedures and the intervention. A secondary aim was to explore the potential efficacy of MOPED-A in reducing athletes' eating disorder symptoms.

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Background: Admissions to intensive treatment (i.e., inpatient [IP] and/or day patient [DP]) for individuals with severe anorexia nervosa (AN) are common.

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Background: This paper presents an analysis of 32 narratives written by patients waiting for assessment at a transgender health clinic (THC) in England. Narratives are autobiographical free texts, designed to allow patients to describe in their own words their experiences of their gender identity and/or transition prior to a clinic appointment, as part of the assessment process.

Objective: Narratives were analysed to identify actions prospective patients had taken to manage their (usually lengthy) waiting times, so that these 'coping strategies' could be shared with future patients.

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Background: Cross-sectional studies show that transgender people are more likely than cisgender people to experience depression and anxiety before gender-affirming hormone treatment (GAHT). However, the effect of GAHT on mental health in transgender people, and the role of other factors that may have a predictive effect, is poorly explored.

Objectives: Using a longitudinal methodology, this study investigated the effect of 18-month GAHT on depression and anxiety symptomatology and the predictors on mental health outcomes in a large population of transgender people.

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