Cancer of unknown primary (CUP)
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This study is looking at blood and tissue samples to study that could affect the development of cancer of unknown primary.
Cancer of unknown primary (CUP) means that cancer spread has been found in your body (secondary cancer). But your doctors can't find where the cancer started (the primary cancer). It is sometimes called unknown primary cancer or unknown primary tumour.
Recruitment start: 15 August 2024
Recruitment end: 1 December 2026
Please note: In order to join a trial you will need to discuss it with your doctor, unless otherwise specified.
Dr Natalie Cook
The Christie NHS Foundation Trust
National Institute of Health Research (NIHR)
Rosetrees Trust
F.Hoffmann-La Roche A
Last reviewed: 7 July 2025
CRUK internal database number: 20001
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