Clinical evidence

The capsule sponge technology of EndoSign® is embedded in the NHS. It has been evaluated over 10 years of clinical trials and real world implementation.

Take a look at some of the supporting evidence.

  • Biomarker analysis produces a 10-fold increase in detection of Barrett’s oesophagus compared with standard of care.
  • Capsule sponge testing has comparable accuracy to other screening tests and may be a simple and inexpensive approach for identifying patients with reflux symptoms who warrant endoscopy to diagnose Barrett’s oesophagus.
    Read the BEST2 study
  • Capsule sponge tests like EndoSign® provide a cost-effective screening alternative to usual care for patients with reflux symptoms.
  • Capsule sponge testing and laboratory biomarkers can be used to prioritise endoscopic surveillance of patients with Barrett’s oesophagus.
  • A pilot study demonstrated the potential cost savings of capsule sponge tests like EndoSign® in monitoring patients with Barrett’s oesophagus.

Studies show the accuracy of EndoSign® 

Biomarkers used to analyse cells collected with capsule sponge tests like EndoSign® have been shown to have a high level of accuracy in detecting Barrett's oesophagus, with a specificity of 92% and sensitivity of 90%, as demonstrated in the BEST3 study.

Capsule sponge testing has additionally been found to be effective in detecting oesophageal cancer, defined as high grade dysplasia or intramucosal adenocarcinoma, with an overall sensitivity of 94%.

Specificity for detecting Barrett's oesophagus, dysplasia, or cancer was found to be 94%, with a positive predictive value of 59% in BEST3.