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We conduct research and also support and commission others to take part in research to benefit people with Prader-Willi syndrome.


Research on specialist services for people with PWS

There is significant anecdotal evidence that PWS-specific residential services bring benefit and are necessary for many people with PWS if they are to have satisfied, socially integrated and healthy lives. However, there are very few peer-reviewed evaluations of these services. Without formal empirical evidence of efficacy, it has proved difficult for countries who lack such services to argue that they are necessary, and even in many countries where such services exist it has proved difficult to develop additional services.

We’re delighted to announce a new article from IPWSO that analyses data from 11 services in 6 countries concludes that full-time care services offer people with PWS opportunities to thrive in ways that are both immediate and lasting, especially if those services are specialised around the particular needs that arise from PWS.

Body weight, behaviours of concern, and social contact in adults and adolescents with Prader-Willi syndrome in full-time care services: Findings from pooled international archival data

IPWSO Mental Health Network

The mental wellbeing of people with Prader-Willi syndrome (PWS) is a major concern for them, their families and other care providers, and the presence of mental-ill health and/or behaviour problems is often cited as the single most significant impediment to a more independent and fulfilling life for people with PWS.

The rarity of PWS means that there are few psychiatrists, psychologists or other mental health professionals who support a large number of people with Prader-Willi syndrome.  The absence of a network to connect mental health professionals who support people with PWS and the fact that most mental health professionals support only a small number of people with PWS have inhibited research efforts.

The IPWSO Mental Health Network aims to connect mental health professionals who support people with PWS or have a research interest in PWS along with professional and family carers to reflect on existing knowledge and research, identify priorities for new research, and identify ways to undertake this research.

Ultimately it is hoped that research undertaken as part of the IPWSO Mental Health Network will result in best practice guidelines that aim to optimise wellbeing and best enable the prevention, detection, and treatment of mental ill-health and problem behaviours for people with PWS.

If you have an interest in mental health in PWS and would like to participate in this Network please contact us.

  This project is supported by Friends of IPWSO (USA).




Choice and control: the use of restrictive practices in the care of people with Prader-Willi syndrome

IPWSO and the University of Cambridge conducted research to find out more about people’s views on the best way to support healthy lifestyles for people with Prader-Willi syndrome, whilst ensuring their rights are respected.

A huge thank you to everyone who participated in the survey on supporting people with PWS to manage hyperphagia. We have had responses from people from all around the world and it has been wonderful, and extremely informative, to hear from you all. The research team is now in the process of analysing all of the responses, in order to produce a report that will feed into new draft guidelines. Two papers have already been published.

A scoping review of case law relating to support and treatment for people with Prader-Willi Syndrome

The consequences of hyperphagia in people with Prader-Willi Syndrome: A systematic review of studies of morbidity and mortality

Covid-19 study

Professor Tony Holland and the Clinical and Scientific Advisory Board conducted a study into the effects of the COVID-19 infection on people with PWS. The results were analysed and written up by Dr Joyce Whittington at the University of Cambridge.

The paper was published in the Orphanet Journal of Rare Diseases and is available to read online.

Clinical Research
Research Papers
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International Community

IPWSO was established so that PWS associations, families, clinicians and caregivers around the world could exchange information and support and have a united global voice under one umbrella.

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Information for

Find useful guides, research and information to help families manage PWS.

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Information for Medical Professionals

The latest medical and scientific research and information, plus guides into common medical issues affecting people with PWS.

Information for
Professional Caregivers

Sharing international knowledge among professional service providers throughout the world.

What is PWS?

Translated Guides

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