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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Dr Simon Gollins
-
simon.gollins@nhs.net


Mr Jaike Belgrave
+44 113 343 1486
artemis@leeds.ac.uk


More information about this study, what is involved and how to take part can be found on the study website.

Study Location:

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English | Cymraeg
Be Part of Research - Trial Details - The ARTEMIS trial is for patients who have been diagnosed as having a cancer of the lower bowel, known as the rectum. This study will examine the benefit of adding an additional treatment alongside radiotherapy and chemotherapy with the hope of increasing the chance of curing rectal cancer without the need for surgery.

The ARTEMIS trial is for patients who have been diagnosed as having a cancer of the lower bowel, known as the rectum. This study will examine the benefit of adding an additional treatment alongside radiotherapy and chemotherapy with the hope of increasing the chance of curing rectal cancer without the need for surgery.

Medical Conditions

Locally advanced rectal 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.


Radiotherapy (RT) based treatment for patients with localised rectal cancer can result in long-term cure of the disease, enabling patients to avoid surgery to remove parts of the rectum (known as ‘organ preservation’ (OP)). Based on our own patient survey, OP is one of the main concerns of the patient population, though with current treatments available it is not an outcome that is available to most patients. Improving OP rate is an important priority of the trial. There is research showing encouraging results when immunotherapy is used in combination with RT treatment. To this end, the trial aims to test the efficacy of a new immunotherapy drug ‘AN0025’. Research has shown that it could be an effective treatment which allows patients a better quality of life (QoL). The trial aims to compare what would, effectively, be ‘standard care’ for patients and ‘standard care’ in combination with AN0025. There is evidence for the benefits of immunotherapy when treating localised rectal cancer, further research is required as: there is a lack of data relating to OP, new drugs and treatments that may increase rates of OP need to be evaluated, there is little information on health-related QoL and how patients experience treatment and more data is needed to better design methods of assigning patients to treatments that best suit them.

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:

22 Mar 2024 28 Feb 2026

Patients will undergo a regime of either LCCRT or SCRT (dependant on clinician choice) that will take 1-5 weeks, followed by 12 weeks of chemotherapy (this combination is referred to as ‘total neoadjuvant therapy’). Patients on the experimental arm will begin taking AN0025 prior to beginning their RT and will stop when their chemotherapy ends. Both arms will then be followed up at 4, 6, 9, 12, 18, 24 and 30 months (post-start of RT) where they will attend clinic and perform assessments.


The trial will be conducted at approximately 15-20 NHS sites in the UK and open to all adults in the patient population (140 patients, 70 patients in each arm).

You can take part if:



You may not be able to take part if:


1. Unequivocal distant metastatic disease2. Previous pelvic radiotherapy3. MRI defined predominantly mucinous tumour i.e. more than one third of tumour volume assessed to consist of mucin4. Biopsy-proven neuroendocrine tumour5. Definite MRI pelvic side wall lymph node involvement, invasion of adjacent organ, ischio-rectal fossa involvement6. Pre-existing faecal incontinence for solid stool or chronic diarrhoea (> grade 1 according the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE))7. Defunctioning colostomy or ileostomy8. Prior antineoplastic therapy for rectal cancer9. Pregnant or breast feeding or of child bearing potential and unwilling to use effective contraceptive methods10. On-treatment participation in an interventional clinical study 30 days prior to randomisation11. Other concomitant antineoplastic therapy12. Inability to comply with taking oral capecitabine/AN0025 medication13. Active, uncontrolled infections14. Active, disseminated coagulation disorder15. Clinically significant cardiovascular disease ≤ 6 months before randomisation16. Prior invasive malignancy unless disease free >3 years (excluding basal cell carcinoma of the skin or carcinoma in situ)17. Known allergic reactions to either oxaliplatin or AN0025 or both capecitabine and 5-FU18. On medication with inhibitors of DPD19. Psychosocial issues which may affect treatment compliance20. Prolongation of corrected QT (QTc) interval to >480 msec when electrolyte balance is normal21. Recent occurrence (within 3 months prior to randomisation) of a major thromboembolic event, such as pulmonary embolism or proximal deep vein thrombosis, unless stable on (>14 days) therapeutic anticoagulation (aspirin ≤325 mg daily or low-molecular-weight heparin (LMWH). Subjects with a history of clinically non-significant thromboembolic events, not requiring anticoagulation, are allowed on study22. Subjects receiving oral warfarin are not eligible for this study (unless warfarin is discontinued at least 7 days prior to commencement of treatment and for the duration of the study, or oral warfarin is converted to LMWH, where local clinical opinion considers this an acceptable option)23. Other systemic and local antitumor therapies such as chemotherapy, anti-tumour immunotherapy, radiotherapy or surgical interventions that may interfere / interact with the proposed treatment as part of the ARTEMIS trial24. Other investigational drugs.

25. The following are prohibited during AN0025 therapy and therefore render patients ineligible for randomisation unless these can be switched to alternative medication prior to trial drug dosing:25.1. Non-steroidal anti-inflammatory drugs (NSAIDs)25.2. Aspirin at doses of higher than 325 mg daily25.3. Angiotensin converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs)25.4. Uridine’5 diphospho-glucuronosyl transferase (UGT) inducers or inhibitors (atazanavir, probenecid, valproic acid, mefenamic acid, quinidine)25.5. Anticoagulation with anti Xa agents (i.e.:Novel oral anticoagulants (NOACs): apixaban, rivaroxaban): Low Molecular Weight Heparin (LMWH) is the preferred form of initial anticoagulation. However, if, in the assessment of the investigator, changing to a NOAC is considered appropriate, then this is acceptable assuming the thrombotic event is medically controlled.26. We recommend that patients DO NOT receive concomitant capecitabine and warfarin as the disturbance in warfarin metabolism during capecitabine treatment is unpredictable and difficult to manage. Wherever possible we would recommend either treating the patient with low molecular weight heparin instead of warfarin, or changing the patient to OxMdG treatment rather than CAPOX. If the Local Investigator feels there is no alternative to giving capecitabine and warfarin concurrently then these patients MUST have their anticoagulant response (INR or prothrombin time) monitored frequently in order to adjust the anticoagulant dose accordingly.Unless: A patient, in the assessment of the investigator, requires the use of prohibited anti-Xa anticoagulants for clinical management and are unable to find alternative treatments, they may be allowed to participate in the trial if the following are met: The patient has been receiving anticoagulant treatment for venous thromboembolism continuously for at least 1 month and has, in the opinion of the investigator, achieved stable response in keeping with the community standards of medical care27. Leeds CTRU is notified prior to screening/consent of the patient’s requirement for anticoagulants and received approval by Leeds CTRU.

Added 19/05/2025:28. Known complete DPD deficiency29. Known deficient mismatch repair (dMMR)/microsatellite instability high (MSI-H)


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

  • Beatson West of Scotland Cancer Centre
    1053 Great Western Road
    Glasgow
    G12 0YN
  • Churchill Hospital
    Churchill Hospital Old Road Headington
    Oxford
    OX3 7LE
  • University College London Hospitals NHS Foundation Trust
    250 Euston Road
    London
    NW1 2PG
  • Weston Park Hospital
    Whitham Road
    Sheffield
    S10 2SJ
  • Aberdeen Royal Infirmary
    Foresterhill Road
    Aberdeen
    AB25 2ZN
  • Velindre Cancer Centre
    Velindre Road
    Cardiff
    CF14 2TL
  • Hull Royal Infirmary
    Anlaby Road
    Hull
    HU3 2JZ
  • Taunton Hospital
    Musgrove Park Hospital
    Taunton
    TA1 5DA
  • Glan Clwd Hospital
    Ysbyty Glan Clwydd Bodelwyddan
    Rhyl
    LL18 5UJ
  • Royal Shrewsbury Hospital
    Mytton Oak Road
    Shrewsbury
    SY3 8XQ
  • Royal Preston Hospital
    Sharoe Green Lane North Fulwood
    Preston
    PR2 9HT
  • The Royal Wolverhampton NHS Trust
    New Cross Hospital Wolverhampton Road Heath Town
    Wolverhampton
    WV10 0QP
  • Addenbrooke's Hospital
    Cambridge University Hospitals NHS Foundation Trust Hills Road
    Cambridge
    CB2 0QQ
  • Belfast City Hospital
    51 Lisburn Rd
    Belfast
    BT9 7AB
  • Southampton General Hospital
    University of Southampton and University Hospital Southampton NHS Foundation Trust Tremona Road
    Southampton
    SO16 6YD
  • Ipswich Hospital
    Heath Road
    Ipswich
    IP4 5PD
  • Colchester General Hospital
    Colchester District General Hosp. Charter Way Turner Road
    Colchester
    CO4 5JL
  • Freeman Hospital
    Newcastle Upon Tyne Hospital Trust Freeman Road High Heaton
    Newcastle
    NE7 7DN
  • St James's University Hospital NHS Trust
    St James's University Hospital Gledow Wing Beckett Street
    Leeds
    LS9 7TF
  • Darlington Memorial Hospital
    County Durham and Darlington NHS Foundation Trust Hollyhurst Road
    Darlington
    DL3 6HX
  • The Christie Hospital
    Wilmslow Road Withington
    Manchester
    M20 4BX
  • Clatterbridge Cancer Centre
    Clatterbridge Centre for Oncology NHS Foundation Trust Clatterbridge Road Bebington
    Wirral
    CH63 4JY
  • Imperial College London
    Central and North West London NHS Foundation Trust Du Cane Road
    London
    W12 0NN

Eligibility criteria have been made as inclusive as possible and the trial broadly reflects patients in clinical practice. This study specifically targets an intervention with respect to clinical trials - immunotherapy, and a population which could see great benefit from an increased rate of organ preservation - patients with localised rectal cancer. Participants will be provided with a patient information sheet, along with a consent form (PISICF) which covers the trial information. Patients will have the opportunity to discuss the trial with a member of the local research team. Informed consent will be taken by an authorised clinically and good clinical practice (GCP) trained member of staff who will ensure that the person understands the purpose and nature of the study and what it involves, the benefits, the risks and burdens and the alternative treatments available. Accompanying the PISICF will be a key fact sheet related to the treatment they have been allocated. These act as a condensed document that provides participants with an easy overview of the treatment they will experience. All patient facing documents will ensure that the potential participant is able to retain the information long enough to make an effective decision with free choice. Furthermore, we allow participants as much time as they need to decide whether they would like to participate in the trial. All patients who choose to enter the trial will be fully informed of the potential side-effects of the chemotherapy, radiotherapy and immunotherapy and will be advised on how these can be minimised. A radiotherapy (RT) guideline document has been developed with RTTQA alongside national RT guidance to ensure the safety of participants receiving radiotherapy during the trial. The RTTQA group will monitor quality compliance to ensure the safety of participants. We do not anticipate any significant problems with the administration of chemoradiotherapy in either arm of the trial. Sites must pass pre-trial quality assurance checks prior to opening and additional in-trial quality assurance checks will be incorporated. The doctors and nurses will aim to ensure risks are kept to a minimum. Different people (such as radiographers, physicists, chemotherapy nurses and doctors) check the radiotherapy and chemotherapy treatment before and during treatment, so the chance of it being delivered incorrectly is very small. Should this happen, or an unexpected problem arises during treatment, the treating medical team will discuss the consequences and options with the participant.
The Trial Management Group (TMG) along with the independent committees - Data Monitoring Ethics committee (DMEC) and Trial Steering committee (TSC) will monitor the study on an ongoing basis The DMEC will be presented with treatment compliance and safety data by arm, monitoring and highlighting any potential safety concerns with trial treatment, and allowing the potential to stop the trial. The trial will include an early assessment of safety after 10 patients have been recruited or after 6 months of recruitment, which ever is sooner. If participants experience symptoms or side effects, they must report these to the study nurse or doctor. The side effects of ‘standard’ RT, chemotherapy and AN0025 are described in detail in documentation provided to the participant. During the trial AN0025 will be closely monitored and side effects that may occur as a result of taking AN0025 will be reported and protocol dose de-escalation or omission will result if deemed necessary. Clinical testing has provided a list of the most commonly occurring side effects when receiving AN0025. Because AN0025 is a relatively new drug, there could be problems and side effects nobody knows about. It is possible that the additional drug treatment (AN0025) may increase side effects of standard RT or chemoradiotherapy and the following chemotherapy. Smaller studies carried out suggest that the side effects caused by AN0025 are mild and well-tolerated. Measuring these potential side effects precisely is a very important part of the ARTEMIS study. That is why we will make sure that we regularly assess side effects and ask participants about their symptoms and quality of life, each time the patient attends a clinic visit during treatment and afterwards in the 'follow-up' period. The trial design includes an interim assessment for futility so that if there is evidence that the treatment arm response is no better than the control then the trial will stop for futility. This prevents any further patients taking an additional agent that does not add benefit. Data on the treatment participants receive will be collected weekly during radiotherapy. Information will be recorded on the total dose of radiotherapy received (dose and fractions), the overall treatment time (i.e. start and end date), details of any interruptions to the radiotherapy and the reasons for these interruptions (i.e. toxicity or other).

Dr Simon Gollins
-
simon.gollins@nhs.net


Mr Jaike Belgrave
+44 113 343 1486
artemis@leeds.ac.uk



More information about this study, what is involved and how to take part can be found on the study website.


The study is sponsored by University of Leeds and funded by Adlai Nortye.




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Read full details for Trial ID: ISRCTN15384496

Or CPMS 58458

Last updated 19 May 2025

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