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Wolfson Institute of Preventive Medicine - Barts and The London

Strategies to reduce social gradient in Bowel Cancer Screening

Centre of Cancer Prevention

Principal Investigator:  Stephen Duffy,


ASCEND is a series of cluster randomised trials of use of different information resources, GP endorsement, and enhanced reminder services to promote participation in bowel cancer screening.

The interventions are designed with particular emphasis on effects on low socioeconomic status populations, with the aim of bringing participation in these populations closer to the rates prevailing in more affluent groups.

Further details

The PI of this study is Rosalind Raine, UCL. Stephen Duffy is the study statistician and local investigator.



Stephen Duffy
Phone: +44 (0) 20 7882 3535