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Be Part of Research - Trial Details - DETECTION Trial: Using blood tests to guide early treatment of relapse in early stage melanoma

DETECTION Trial: Using blood tests to guide early treatment of relapse in early stage melanoma

Medical Conditions

Skin Cancer


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.



Background and study aims
We are looking for new and better ways to treat melanoma. We have developed a blood test that tells us whether cancer cells are still present or cancer is becoming active, even if a scan looks normal. The test looks for pieces of DNA that are known to have come from the cancer, which we call ‘circulating tumour DNA’, or ctDNA. If we do not find ctDNA patients will stay on the study having blood tests either until the study ends (and we have not found ctDNA in their blood) or until we find ctDNA in the blood. If we find ctDNA, patients will be allocated to either receive the standard of care, which is ongoing follow up or nivolumab, an immune-boosting drug which we know is effective at treating melanoma. A doctor will inform patients of the possible benefits and risks when taking nivolumab. We do not know whether treating early with nivolumab, on the evidence of ctDNA alone, is of benefit to patients, and this is what we need to find out.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

20 Oct 2021 31 Aug 2026

The study will begin with screening to check that it is safe for participants to be involved in the trial.
Then the primary tumour (tissue removed from your recent melanoma surgery) will be tested for the presence of faulty genes. If faulty genes are present then participants will undergo regular blood tests for the presence of ctDNA every 3 months. If ctDNA is detected participants will be allocated into 1 of 2 groups (Arm A or Arm B) Participants will be allocated to one of two groups, with an equal chance of being in either group (like tossing a coin).

For the first 3 years participants in Arm A will receive medical assessment (physical examination, vital signs, weight) and blood tests for ctDNA every 3 months; scans and questionnaires every 6 months; and an ECG and urine test yearly. In years 4 and 5 of the study participants in Arm A will receive medical assessment, ctDNA blood test, scans, and questionnaires every 6 months, and the ECG and urine test yearly. At the last visit there will be final a medical assessment, ctDNA blood test, ECG and urine test.

Over 2 years, participants in Arm B will receive medical assessments, administration of nivolumab (over a period of 1 h), ctDNA blood test every 4 weeks, scans and questionnaire every 6 months and ECG and urine test yearly. After the 2 year period of receiving nivolumab participants will receive medical assessments, ctDNA test, urine test, ECG, then scan and questionnaires every 6 months and ECG and urine test yearly.. At the last visit there will be final a medical assessment, ctDNA blood test, ECG and urine test.


We are looking for new and better ways to treat melanoma. We have developed a blood test that tells us whether cancer cells are still present or cancer is becoming active, even if a scan looks normal. The test looks for pieces of DNA that are known to have come from the cancer, which we call ‘circulating tumour DNA’, or ctDNA. If we do not find ctDNA patients will stay on the study having blood tests either until the study ends (and we have not found ctDNA in their blood) or until we find ctDNA in the blood. If we find ctDNA, patients will be allocated to either receive the standard of care, which is ongoing follow up or nivolumab, an immune-boosting drug which we know is effective at treating melanoma. A doctor will inform patients of the possible benefits and risks when taking nivolumab. We do not know whether treating early with nivolumab, on the evidence of ctDNA alone, is of benefit to patients, and this is what we need to find out.

Who can participate?
Patients who have been diagnosed with early-stage melanoma which has been removed by surgery.

What does the study involve?
The study will begin with screening to check that it is safe for participants to be involved in the trial.
Then the primary tumour (tissue removed from your recent melanoma surgery) will be tested for the presence of faulty genes. If faulty genes are present then participants will undergo regular blood tests for the presence of ctDNA every 3 months. If ctDNA is detected participants will be allocated into 1 of 2 groups (Arm A or Arm B) Participants will be allocated to one of two groups, with an equal chance of being in either group (like tossing a coin).
For the first 3 years participants in Arm A will receive medical assessment (physical examination, vital signs, weight) and blood tests for ctDNA every 3 months; scans and questionnaires every 6 months; and an ECG and urine test yearly. In years 4 and 5 of the study participants in Arm A will receive medical assessment, ctDNA blood test, scans, and questionnaires every 6 months, and the ECG and urine test yearly. At the last visit there will be final a medical assessment, ctDNA blood test, ECG and urine test.

You can take part if:



You may not be able to take part if:


1. If previously received prior immunotherapy, chemotherapy, cancer directed vaccine therapy or BRAF/MEK targeted therapy for cancer2. Patients with active, known or suspected autoimmune disease. Patients with type 1 diabetes mellitus, rheumatoid arthritis not requiring disease modifying drugs, hypothyroidism only requiring hormone replacement, skin disorders (such as vitiligo, psoriasis or alopecia) not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger will be permitted to enrol.3. Current other malignancy or history of another malignancy within the last 3 years. Patients who have been disease-free for 3 years, (i.e. patients with second malignancies that have been definitively treated at least 3 years ago) or patients with a history of completely resected non-melanoma skin cancer are eligible4. Any serious or unstable pre-existing medical conditions (aside from malignancy exceptions specified above), psychiatric disorders, or other conditions that could interfere with the patient’s safety, obtaining informed consent, or compliance with study procedures5. Patients with a condition requiring ongoing/long-term (> 3 months) systemic treatment with either corticosteroids (>10 mg daily prednisone equivalent) or other immunosuppressive medications. Inhaled or topical steroids and adrenal replacement steroid doses ≤10 mg daily prednisolone equivalent are permitted in the absence of active autoimmune disease6. Patients with interstitial lung disease that is symptomatic or may interfere with the detection or management of suspected drug-related pulmonary toxicity7. History of allergies or adverse drug reaction to any of the study drug components or to any monoclonal antibody8. Known Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or Hepatitis C Virus (HCV) infection9. Prisoners or patients who are involuntarily incarcerated


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Oxford University Hospitals NHS Foundation Trust
    John Radcliffe Hospital Headley Way Headington
    Oxford
    OX3 9DU
  • Sheffield Teaching Hospitals NHS Foundation Trust
    Northern General Hospital Herries Road
    Sheffield
    S5 7AU
  • NHS Greater Glasgow and Clyde
    J B Russell House Gartnavel Royal Hospital 1055 Great Western Road
    Glasgow
    G12 0XH
  • The Christie NHS Foundation Trust
    550 Wilmslow Road Withington
    Manchester
    M20 4BX
  • University Hospitals Birmingham NHS Foundation Trust
    Queen Elizabeth Hospital Mindelsohn Way Edgbaston
    Birmingham
    B15 2GW
  • Leeds Teaching Hospitals NHS Trust
    St. James's University Hospital Beckett Street
    Leeds
    LS9 7TF
  • University Hospitals of Leicester NHS Trust
    Leicester Royal Infirmary Infirmary Square
    Leicester
    LE1 5WW
  • The Royal Marsden NHS Foundation Trust
    Fulham Road
    London
    SW3 6JJ
  • The Newcastle upon Tyne Hospitals NHS Foundation Trust
    Freeman Hospital Freeman Road High Heaton
    Newcastle upon Tyne
    NE7 7DN
  • Norfolk and Norwich University Hospital NHS Trust
    Colney Lane Colney
    Norwich, Norfolk
    NR4 7UY
  • Belfast Health & Social Care Trust
    Knockbracken Healthcare Park Saintfield Road
    Belfast
    BT8 8BH
  • Velindre NHS Trust
    Unit 2 Charnwood Court Heol Billingsley
    Cardiff
    CF15 7QZ
  • Royal Surrey County Hospital NHS Foundation Trust
    Egerton Road
    Guildford
    GU2 7XX
  • Mid and South Essex NHS Foundation Trust
    Prittlewell Chase
    Westcliff-on-sea
    SS0 0RY
  • St George’s University Hospitals NHS Foundation Trust
    Blackshaw Road
    London
    SW17 0QT
  • East and North Hertfordshire NHS Trust
    Lister Hospital Coreys Mill Lane
    Stevenage
    SG1 4AB
  • Cambridge University Hospitals NHS Foundation Trust
    Cambridge Biomedical Campus Hills Road
    Cambridge
    CB2 0QQ
  • Clatterbridge Cancer Centre NHS Foundation Trust
    Clatterbridge Hospital Clatterbridge Road Bebington
    Wirral
    CH63 4JY
  • Lancashire Teaching Hospitals NHS Foundation Trust
    Royal Preston Hospital Sharoe Green Lane North Fulwood
    Preston
    PR2 9HT
  • Royal Devon and Exeter NHS Foundation Trust
    Royal Devon and Exeter Hospital Barrack Road
    Exeter
    EX2 5DW
  • Guy’s and St. Thomas’ NHS Foundation Trust
    St. Thomas’ Hospital Westminster Bridge Road
    London
    SE1 7EH

We are looking for new and better ways to treat melanoma. We have developed a blood test that tells us whether cancer cells are still present or cancer is becoming active, even if a scan looks normal. The test looks for pieces of DNA that are known to have come from the cancer, which we call ‘circulating tumour DNA’, or ctDNA. If we do not find ctDNA patients will stay on the study having blood tests either until the study ends (and we have not found ctDNA in their blood) or until we find ctDNA in the blood. If we find ctDNA, patients will be allocated to either receive the standard of care, which is ongoing follow up or nivolumab, an immune-boosting drug which we know is effective at treating melanoma. A doctor will inform patients of the possible benefits and risks when taking nivolumab. We do not know whether treating early with nivolumab, on the evidence of ctDNA alone, is of benefit to patients, and this is what we need to find out.

Who can participate?
Patients who have been diagnosed with early-stage melanoma which has been removed by surgery.

What does the study involve?
The study will begin with screening to check that it is safe for participants to be involved in the trial.
Then the primary tumour (tissue removed from your recent melanoma surgery) will be tested for the presence of faulty genes. If faulty genes are present then participants will undergo regular blood tests for the presence of ctDNA every 3 months. If ctDNA is detected participants will be allocated into 1 of 2 groups (Arm A or Arm B) Participants will be allocated to one of two groups, with an equal chance of being in either group (like tossing a coin).
For the first 3 years participants in Arm A will receive medical assessment (physical examination, vital signs, weight) and blood tests for ctDNA every 3 months; scans and questionnaires every 6 months; and an ECG and urine test yearly. In years 4 and 5 of the study participants in Arm A will receive medical assessment, ctDNA blood test, scans, and questionnaires every 6 months, and the ECG and urine test yearly. At the last visit there will be final a medical assessment, ctDNA blood test, ECG and urine test.


The study is sponsored by Christie Hospital NHS Foundation Trust and funded by Bristol-Myers Squibb; Cancer Research UK.




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Read full details for Trial ID: ISRCTN94991276

Or CPMS 48994

Last updated 06 March 2023

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