Our advisory group

Our panel of MS specialists provides expert scientific and medical advice to inform the work of the MS Trust.

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Wallace Brownlee, Consultant Neurologist

Dr Wallace Brownlee is a Consultant Neurologist at the National Hospital for Neurology and Neurosurgery, Queen Square and Honorary Associate Professor at UCL Institute of Neurology. After completing his training in Auckland, New Zealand he moved to London and joined the staff at Queen Square in 2016. He was appointed clinical lead for MS in 2019, providing clinical leadership and strategic direction for the largest specialist MS service in the UK. He is Principal Investigator for a number of clinical trials in MS, and Associate Editor of Multiple Sclerosis Journal.

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Gail Clayton, MS Specialist Nurse

Gail Clayton is lead clinical nurse specialist for the MS team at the University Hospital of Wales in Cardiff where she manages the multidisciplinary team. Gail was the first MS nurse in Wales in 1995. A founding member of the UKMSSNA (UK MS Specialist Nurse Association), she developed and promoted the role of the MS nurse in Wales and nationally. Her interests include childhood MS and transition to SPMS as well as identifying the needs of people growing older with MS. Gail is involved in multidisciplinary team disease modifying drug decision making and treatment monitoring as well as MS symptom management.

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Michelle Davies, Service Lead for the Dorset MS Service

Michelle Davies qualified as a Physiotherapist in 1995 and worked in Cardiff where she specialised in Neurology from 1997. She moved to Dorset in 2006 and developed an interest in pro-active care, holistic patient assessment and review, and the development of neuro and MS advanced clinical practitioners. In 2016, Michelle became Service Lead for the Dorset MS Service. In this role she is developing the team and pathways to optimise holistic and pro-active care for people with MS. Michelle is co-chair of TiMS (Therapists in MS) and is an active member of the working group. She is passionate about improving services for people with MS and developing professionals in this field.

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Rachel Dorsey-Campbell, Senior Lead Pharmacist

Rachel Dorsey-Campbell has been an NHS hospital pharmacist for over 25 years and working as a neurology specialist pharmacist for the last 16. In recent years she has been working with the MS team at Imperial College NHS Trust in London on the safe provision of medicines to MS patients and has overseen the development of a phamacy-led disease modifying drug prescribing monitoring service at the trust. She is a non-medical prescriber of disease modifying drugs.

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Orla Gray, Consultant Neurologist

Dr Orla Gray currently works in the Ulster Hospital in Belfast as a Consultant Neurologist with a specialist interest in MS. She studied Medicine at Queens University Belfast and completed her neurology training in Northern Ireland before carrying out further study in Melbourne, Australia. Dr Gray is a member of MSBase, an online international registry of patient data and joined the Board of Directors in 2016.

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Chammi Karunathilaka, MS Specialist Nurse

Chammi Karunathilaka is the senior MS Clinical Nurse Specialist and an independent nurse prescriber at Royal Free London NHS Foundation Trust, based at Chase Farm Hospital. Chammi has been an MS Nurse Specialist since 2012, working in the community role initially, in Barnet then at Royal Free NHS Trust. She trained at Anglia University at Chelmsford in 1993 and worked in general rehabilitation at Potters Bar Community Hospital before specialising in MS. Her interests include promoting self-management in MS.

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Niall MacDougall, Consultant Neurologist

Dr Niall MacDougall has worked as a Consultant Neurologist in Glasgow and Lanarkshire since 2016, developing specialist MS services within NHS Lanarkshire. He is also the clinical lead for the Scottish MS Register and has an interest in the epidemiology of MS in Scotland. He participates in various MS research projects across Scotland. Dr MacDougall studied medicine at the University of Warwick having completed an undergraduate degree in Neuroscience at the University of Glasgow. He trained in general medicine and neurology and subsequently trained in clinical neurology in Dundee and Glasgow.

MS Trust

Denise Middleton

Denise Middleton is an MS Clinical Specialist working in the Neurological Clinical Specialist Team, part of Milton Keynes Community Health Services. Working closely with a colleague, she provides a holistic approach to the provision of care, advice and support to people with MS, their families and healthcare professionals involved in MS care. She trained as an Occupational Therapist before specialising in MS.