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About
Patients with cancer are increasingly being treated with drugs designed to modulate the response of their immune system, broadly to boost their body's defences against cancer. However, there is an unmet need to identify which patients are unlikely to benefit. Deciding on benefit from therapy uses standard imaging methods (e.g. CT scans), which can take time (months) whereas DNA in the bloodstream could be measured more rapidly.
The main aim of this study is to assess whether changes in the level of circulating tumour DNA (ctDNA) can quickly determine a patients response. This would enable patients to change therapies more quickly if they are not responding and reduce exposure to unnecessary side effects.
Full description
Measuring circulating (plasma) tumour DNA has been described as a 'liquid biopsy' able to study a tumour without invasive biopsy. By measuring ctDNA at different time points the investigators can detect tumour changes that indicate if the patient is responding to treatment or not.
This trial has been designed as a prospective, open label, non-randomised trial where patient with advanced oesophageal cancer will be treated with MEDI4736 (durvalumab), a drug designed to alter the immune system response. Samples will be taken to regularly to measure ctDNA levels and compared to patients response at 6 months when undergoing standard CT scans.
The study will run at a single centre (Addenbrookes Hospital, Cambridge). Nineteen, evaluable, patients will receive durvalumab until progression while detailed studies will assess their tumour and immune response.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Provide written, informed consent to participate
Aged ≥ 18 years at time of consent
Confirmed advanced oesophageal cancer for which the patient must have received at least one prior line of standard of care treatment
Predicted life expectancy ≥ 3 months
Eastern Cooperative Oncology Group (ECOG) PS 0 or 1
Measurable disease, as defined by RECIST v1.1.
In the investigator's opinion, have an accessible and biopsiable tumour lesion for additional research biopsy, to which the patient will have to consent at screening.
Adequate hematologic and organ function, defined by:
Negative pregnancy test in women of child-bearing potential or evidence of postmenopausal status
Exclusion criteria
Weight of ≤30kg
Any concurrent chemotherapy, immunotherapy, biologic or hormonal therapy for cancer treatment.
Participation in other clinical trials involving active treatment for the malignant disease.
Received radiotherapy treatment on a wide body field, or an equivalent to more than 30% of the bone marrow, within the last 4 weeks.
Any unresolved symptom NCI CTCAE Grade ≥2 from previous anticancer therapy (with the exception of alopecia and vitiligo).
Active or prior documented autoimmune or inflammatory disease (except vitiligo) within the last 3 years, for example:
History of organ transplant that requires use of immunosuppressive medications or any medical condition in which immunosuppressive agents were administered, including but, not limited to:
History of active primary immunodeficiency.
Receipt of live, attenuated vaccine within the last 30 days.
Other invasive malignancy within the last 3 years. Patients with previous history of malignancies with a negligible risk of metastasis or death and treated with expected curative intent are eligible at the investigator's discretion, for example:
Women who are pregnant or lactating/ breast feeding.
Male or female patients with reproductive potential who are not willing to employ effective birth control from screening to 90 days after the last dose of durvalumab.
Uncontrolled intercurrent illness, including but not limited to, on-going or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, interstitial lung disease, serious chronic gastrointestinal conditions associated with diarrhea or psychiatric illness/social situations that would limit compliance with study requirement, substantially increase risk of incurring AEs or compromise the ability of the patient to give written informed consent.
Brain metastases unless asymptomatic, treated and stable and not requiring steroids in the last 4 weeks. Patients with known or suspected brain metastases at screening should have a CT/ MRI of the brain prior to trial entry.
History of leptomeningeal carcinomatosis.
Active infection or use of antibiotics (ATB) 14 days prior to Cycle 1 Day 1 of treatment. Patients receiving prophylactic treatment are eligible.
Active infection including tuberculosis (clinical history, physical examination and radiographic findings, and TB testing in line with local practice), hepatitis B (known positive HBV surface antigen (HBsAg) result), hepatitis C, or known human immunodeficiency virus (positive HIV1/2 antibodies).
Major surgical procedure (investigator defined) within 4 weeks prior to first dose or anticipation of the need for a major surgical procedure during the course of the trial other than for diagnosis.
History of severe allergic, anaphylactic, or other hypersensitivity reactions to durvalumab or any of its excipients, chimeric or humanized antibodies or fusion proteins.
Patients previously treated with immune (checkpoint inhibition) therapy
Any medical condition that would, in the investigator's judgment, prevent the patient's participation in the clinical trial due to safety concerns, compliance with clinical trial procedures or interpretation of trial results.
Primary purpose
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Interventional model
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18 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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