UK Launches Major Blood-Test Trial to Detect Multiple Cancers Earlier

Detecting cancer at an early stage can improve treatment opportunities and outcomes. However, several abdominal cancers can initially produce vague symptoms, such as persistent bloating, abdominal discomfort or changes in digestion. These symptoms can also occur in people without cancer, making early identification difficult.

The STRIDE-RCT trial aims to evaluate whether blood tests can help general practitioners identify patients who may need further cancer investigations. More than 20,000 NHS patients aged 45 and above who attend participating practices with abdominal symptoms will be offered the opportunity to take part.

The tests will examine markers in blood samples and use technologies that include protein measurements and artificial intelligence. They are intended to identify possible signs of several cancers in a single sample and help indicate where further investigation may be needed.

A positive result will not confirm cancer. Instead, it will help clinicians decide whether urgent referral and additional diagnostic testing are appropriate. Researchers will assess how accurately the tests work alongside clinical judgement before any decision about wider NHS use.