# Ian Chau

Source: https://onco.cc/people/ian-chau/  
OnCo record `ian-chau` (Person). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

A Royal Marsden gastrointestinal oncologist who has shaped UK colorectal and upper gastrointestinal trials and who works on the blood test for residual disease after bowel surgery.

## Summary

Ian Chau is a consultant medical oncologist in the gastrointestinal and lymphoma units at The Royal Marsden and a professor at the Institute of Cancer Research in London and Surrey. He has served on the UK National Cancer Research Institute's colorectal cancer and pancreatic cancer clinical study groups, and in 2026 was named a Fellow of the American Society of Clinical Oncology. He is an author on the TRACC Part B minimal residual disease analysis.

## Fields

- Kind: Person
- Last checked: 2026-09-24
- Tags: colorectal; uk; trialist
- Role: Consultant Medical Oncologist, The Royal Marsden; Professor, The Institute of Cancer Research
- Specialisms: Gastrointestinal cancer; Immunotherapy; Clinical trial design

## Sources

- The Royal Marsden consultant directory: https://www.royalmarsden.nhs.uk/our-consultants-units-and-wards/consultant-directory/professor-ian-chau

## Connected records

- people: [Naureen Starling](https://onco.cc/people/naureen-starling/)
- cancers: [Colorectal cancer](https://onco.cc/cancers/colorectal/)
- institutions: [The Institute of Cancer Research](https://onco.cc/institutions/icr-london/), [The Royal Marsden](https://onco.cc/institutions/royal-marsden/)
- trials: [TRACC](https://onco.cc/trials/tracc/)

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JSON: https://onco.cc/api/v1/entities/ian-chau.json