THE NHS in Essex is piloting a quick, safe and simple test that could help identify patients at risk of oesophageal cancer much earlier — without the need for more complex hospital tests.
The Capsule Sponge test is being offered at a GP practice in Chelmsford to selected patients with long-term acid reflux*. The procedure takes around seven minutes, requires no sedation, and can be carried out entirely within the GP surgery.
It allows GPs to identify people who may need further investigation sooner, while reassuring those who do not — making care faster, easier and more convenient for patients.
Dr Andrea Oustayiannis, a Macmillan GP and Thurrock Alliance Clinical Lead for Cancer who is leading the Capsule Sponge clinic pilot, said: “Having heartburn increases the risk of cell changes in the food pipe. Most people won’t go on to develop cancer, but spotting these changes early gives us the best chance of preventing more serious illness.
The Capsule Sponge test is designed to detect Barrett’s oesophagus, a condition linked to a slightly higher risk of oesophageal cancer, as well as early precancerous changes. Evidence shows the test is highly accurate and can identify far more cases in general practice than usual care, including early-stage disease when treatment is likely to be more effective.
Alongside the test, patients will receive advice on reducing their risk of cancer, including support around smoking, weight management and other healthy lifestyle choices.
Dr Oustayiannis added: “The test itself is safe and straightforward. You swallow a small capsule about the size of a vitamin pill on a thread; once it reaches your stomach, it dissolves and releases a tiny sponge. We gently pull the sponge back up, and it collects cells from your oesophagus that are then checked in a lab. There’s no need for sedation, and you can get straight back to your day afterwards.”
Bringing earlier diagnosis closer to home
The pilot supports local NHS priorities to help people stay healthier for longer and access more care closer to home.
Dr Elizabeth Towers, Macmillan GP and Essex System Clinical Lead for Cancer, said: “Introducing the Capsule Sponge test into general practice gives us a simple and less invasive way to identify patients at risk of oesophageal conditions much earlier. For patients, it means quicker answers and fewer hospital appointments. For the wider NHS, it helps us reduce pressure on endoscopy** services and focus specialist care where it’s needed most.
“Through this pilot, we hope to demonstrate how innovative diagnostics in primary care could improve outcomes while easing demand across the NHS.”
The pilot aims to see around 250 patients within two years and will be fully evaluated to understand its impact.
