Theo Pelly

United Kingdom
Written By AB

About

Theo Pelly is a Colorectal Surgery Trainee in North London. He is currently a research fellow and PhD student at the Robin Phillips Fistula Research Unit, under the supervision of Professor Ailsa Hart and Mr Phil Tozer.

Theo has a role in facilitating TOpClass consortium meetings and projects. These include co-ordinating the Global Priority Setting Partnership for pCD, as well as leading on the ongoing expert consensus work to develop a novel classification for non-fistulising pCD, and multimodal work relating to Class 4 pCD (unhealed wounds and persistent perineal sinuses following proctectomy).

 

Related Articles & Publications

Publications and Events
Defining Radiological Healing in Perianal Fistulizing Crohn's Disease: A TOpClass Global Expert Delphi Consensus
Publications
Defining Radiological Healing in Perianal Fistulizing Crohn's Disease: A TOpClass Global Expert Delphi Consensus
Publications

A global expert consensus defining what constitutes radiological healing and improvement on MRI in perianal Crohn’s disease, establishing clear, standardised criteria to guide both clinical assessment and research outcomes.

Publications
Perianal Fistulising Crohn’s Disease – Associated anorectal and fistula cancers: Systematic Review and Expert Consensus 
Publications
Perianal Fistulising Crohn’s Disease – Associated anorectal and fistula cancers: Systematic Review and Expert Consensus 
Publications

A global TOpClass review and expert consensus outlining the small but significant risk of anorectal and fistula-associated cancers in long-standing perianal Crohn’s disease, with practical guidance on risk awareness and prompt investigation of new or changing perianal symptoms.

Publications
TOpClass Consortium Meeting at ECCO 2026 
Upcoming Events
TOpClass Consortium Meeting at ECCO 2026 
Upcoming Events

TOpClass Consortium Meeting at ECCO on 19th February 2026 – click for further information. (after click, it should take them to the upcoming events tab) 

Upcoming Events

Related Consortium

Consortium Members
The Fistula Research Unit at St. Mark’s Hospital
Europe
The Fistula Research Unit at St. Mark’s Hospital
Europe

City: London | Country: United Kingdom
The Fistula Research Unit at St. Mark’s Hospital is headed by Professor Ailsa Hart and Mr Phil Tozer. The centre has a strong history of championing research in the field of perianal Crohn’s Disease and progressing the medical and surgical management of perianal fistula. 

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Europe
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