What we know about ‘highly effective’ new bowel cancer treatment

Health & Fitness
21 Apr 2026 • 3:27 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

What we know about ‘highly effective’ new bowel cancer treatment

  • A groundbreaking new treatment regime for bowel cancer, involving immunotherapy before surgery, has shown remarkable success with zero relapses observed in patients after 33 months.
  • The NEOPRISM-CRC trial, led by University College London (UCL) and UCLH, found that 59 per cent of patients exhibited no signs of disease following pembrolizumab treatment and subsequent surgery.
  • This innovative approach significantly reduces the need for chemotherapy and stands in stark contrast to standard treatment, where approximately a quarter of patients typically experience cancer recurrence within three years.
  • The study focused on 32 patients with stage two or three bowel cancer who possess a specific genetic profile (MMR deficient/MSI-high), representing 10-15 per cent of such cases in the UK.
  • Researchers are optimistic that this “highly effective” treatment, which uses the drug pembrolizumab for up to nine weeks pre-operatively, could be extended to a broader range of bowel cancer patients.

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