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A study looking at screening for cancer (The SUMMIT study)

Overview

Cancer types:

Lung cancer

Status:

Results

Phase:

Other

Details

This study looked at low dose CT scans to spot lung cancer earlier. And at developing a new blood test to detect cancer.

It was for people who had a high risk of developing lung cancer. This included people who:

  • were smokers or who used to smoke

  • were between 55 and 77 years old

The study was open for people to join between 2019 and 2021. The team published results for part of the trial in 2025. They hope to publish more results in the future.

Recruitment start: 8 April 2019

Recruitment end: 14 May 2021

How to join

Please note: In order to you will need to discuss it with your doctor, unless otherwise specified.

Chief investigators

Professor Sam Janes

Supported by

University College London (UCL)

GRAIL inc

University College London Hospitals NHS Foundation Trust

Last reviewed: 02 Sept 2025

CRUK internal database number: 15880

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