A study looking at optical biopsy to monitor people with Barrett's oesophagus (Boost)

This study is trying to find out if optical biopsy is useful in monitoring people with Barrett’s oesophagus.

Barrett’s oesophagus is a condition where the cells in the lining of the food pipe (gullet or oesophagus) change and become abnormal. People with Barrett’s oesophagus have a small increased risk of developing oesophageal cancer. The more abnormal the cells, the greater the risk of developing cancer.