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Triangle: Transition Care in Anorexia Nervosa Through Guidance Online from Peer and Carer Expertise


TRIANGLE is a multi-centre study, led by Professor Janet Treasure, which investigates transitions from intensive hospital treatment for anorexia nervosa (inpatient or day care) to home, so that in the future we can make these difficult periods less stressful for both patients and carers. The research aims to examine which level of information and support may be helpful to patients and their carers during treatment and following discharge. This research will help provide the NHS data to redesign future services to put money into aftercare support (post-discharge) for patients and their carers. The TRIANGLE trial is funded by the National Institute for Health Research, Health Technology Assessment (NIHR HTA) programme (project ref number 14/68/09)

Who can take part?  

To take part patients must be: 

  • Adults aged 16 or over.
  • DSM-5 diagnosis of Anorexia Nervosa or subclinical/atypical Anorexia Nervosa, with a body mass index (BMI) of < 18.5 kg/m2.
  • Currently admitted to an inpatient unit or attending day-care for a minimum of 3 days/week, or within 4 weeks of discharge.
  • Carer (family member or friend) willing to participate willing and able to provide some aftercare support.
  • Access to an electronic device (e.g. mobile phone, computer, laptop, tablet) and the internet in order to use the study’s website.

Eligibility will be fully assessed by the hospital team.  

What does the study involve?  

If you decide to take part, your involvement in the project will last 18 months from when you are first recruited. A chance-related system will randomly allocate you to a study group where you will be asked to complete questionnaires throughout the 18 months (being paid £10 every 3 months, to a total of £60). Depending on the randomisation system, you will also receive access to our online platform either immediately or at the end of the 18 months. The platform has three components: a video library (including informational videos, role plays and interviews with recovered patients), anonymous therapeutic chat rooms for patients (MANTRA therapy) and carers (caring skills workshops) and guided self-help manuals designed specifically to support you when transitioning from hospital to the community. Regardless of which group you are allocated too, you will still receive support from your clinical team. 

How can you take part?  

If you are interested in taking part (as an individual or as clinical service), contact the research team:, or

Name of Authors: Katie Rowlands, Viviana Aya, Dan Willmott 
Affiliation: Institute of Psychiatry, Psychology and Neuroscience, King’s College London 

Participating centres taking part in the TRIANGLE study across the UK

  • South West London and St George’s Mental Health NHS Trust
  • Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust
  • ORRI - Specialist Day Treatment for Eating Disorders
  • The Priory Hospital Cheadle Royal
  • South London and Maudsley NHS Foundation Trust
  • Tees, Esk and Wear Valleys NHS Foundation Trust (Mental Health)
  • Dorset Healthcare University NHS Foundation Trust
  • Avon and Wiltshire Mental Health Partnership NHS
  • Berkshire Healthcare NHS Foundation Trust
  • Leicestershire Partnership NHS trust
  • Oxford Health NHS Foundation Trust
  • Central and North West London NHS Foundation Trust
  • Barnet, Enfield and Haringey Mental Health NHS Trust
  • Midlands Partnership NHS Foundation Trust
  • Surrey and Borders Partnership NHS Foundation Trust
  • Cambridgeshire & Peterborough NHS Foundation Trust
  • Essex Partnership University NHS Foundation Trust
  • Devon Partnership NHS Trust
  • The Priory Hospital Roehampton
  • Cheshire and Wirral Partnership NHS Foundation Trust
  • New Market House
  • The Priory Hospital Hayes Grove
  • Gloucestershire Health and Care NHS Foundation Trust
  • The Priory Hospital Southampton
  • The Cardinal Clinic
  • Royal Cornhill Hospital NHS Grampian
  • South East Scotland Regional Eating Disorders Unit NHS Lothian
  • The Priory Hospital Altrincham
  • Ellern Mede Barnet
  • Ellern Mede Centre for Eating Disorders