Plain English Summary
Background and study aims
Renal cell carcinoma is a type of kidney cancer that starts from the kidneys. It is the 8th most common cancer in the UK and an increase of new cases of 2% has been seen in the last 20 years. About half of the new cases of kidney cancer are among people aged 70 and over. Patients whose disease has not spread outside the kidneys typically have surgery to remove a part or all of their kidney (called a partial or radical nephrectomy). After surgery, patients are seen by their doctor with regular check-ups to look for signs of the cancer coming back or spreading to other parts of the body. This is generally called ‘active monitoring’ or ‘active surveillance’. Unfortunately, it is estimated that the cancer will return in 30-40% of the patients who have undergone surgery. Many studies have been carried out to find if a new treatment after surgery might slow the cancer coming back or prevent it from coming back altogether. However, to date no treatment is available. Immunotherapy is a type of cancer treatment that ‘wakes up’ the patient’s own immune system so it can fight the cancer. New drugs which act in this way have worked well in patients with skin cancer (melanoma), lung cancer and in patients witch kidney cancer that has spread outside the kidney. This study is looking at two new immunotherapy treatments. The aim is to find out whether taking one drug (durvalumab) or a combination of two drugs (durvalumab and tremelimumab) for one year can prevent or delay kidney cancer from coming back compared to the current standard of care (active monitoring after surgery). Durvalumab is currently being tested (alone or in combination with other drugs) in many types of cancer. Tremelimumab is also being tested in different types of cancer.
Who can participate?
Patients aged 18 and over with renal cell carcinoma
What does the study involve?
Participants are randomly allocated to one of three groups. Group A is actively monitored for 1 year after nephrectomy. Group B is treated with durvalumab (1500 mg) administered 4 weekly for 1 year (13 cycles maximum) by intravenous infusion (into a vein). Group C is treated with durvalumab administered as per group B (13 cycles maximum) and tremelimumab on day 1 and week 4 visits (2 cycles) by intravenous infusion. The treatment duration is 1 year maximum. Once treatment is completed, participants are seen at week 52, then 3 monthly up to the end of year 3, 6-monthly up to year 5 and annually thereafter.
What are the possible benefits and risks of participating?
If positive, the results of the study will change the current standard of care for the treatment of kidney cancer after surgery. Like all drugs, these treatments have side effects and participants have regular blood tests and scans and appointments with their study doctor and nurse.
Where is the study run from?
Participating centres are being confirmed, list of centres to be updated in due course (Australia, France, UK and USA)
When is the study starting and how long is it expected to run for?
December 2017 to December 2037
Who is funding the study?
1. Kidney Cancer UK
2. AstraZeneca (UK)
3. Medical Research Council (UK)
Who is the main contact?
1. Mr Ben Smith
2. Dr Francesca Schiavone
Mr Ben Smith
MRC Clinical Trials Unit at UCL
90 High Holborn
+44 (0)207 670 4743
Dr Francesca Schiavone
MRC Clinical Trials Unit at UCL
90 High Holborn
+44 (0)207 670 4683
An international investigator-led phase III multi-arm multi-stage multi-centre randomised controlled platform trial of adjuvant therapy in patients with resected primary renal cell carcinoma (RCC) at high or intermediate risk of relapse
Durvalumab is able to prevent tumour relapse by the inhibition of the programmed cell death 1 (PD-1)/ programmed death ligand 1 (PD-L1) pathway, which plays a critical role in tumour immune evasion.
Combination treatment with anti-CTLA4 agent tremelimumab increases immune response and anti-tumour activity.
Not provided at time of registration - approval pending
Multi-centre multi-arm multi-stage unblinded randomised controlled platform trial
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details to request a patient information sheet
Resected primary renal cell carcinoma
The trial will initially open with 3 research arms. The allocation ratio will be 3:2:2 with patients assigned centrally through block randomisation with a small number of clinically important stratification factors.
Arm A: The control arm is active monitoring after nephrectomy (observation through radiological means) for 1 year
Arm B: Durvalumab (1500 mg) administered 4 weekly for 1 year (13 cycles maximum) via intravenous infusion
Arm C: Durvalumab (1500 mg) administered as per arm B (13 cycles maximum) and tremelimumab (75 mg) on day 1 and week 4 visits (2 cycles) via intravenous infusion
The treatment duration is 1 year maximum. Once treatment is completed, patients will be seen at week 52, then 3 monthly up to the end of year 3, 6-monthly up to year 5 and annually thereafter.
Primary outcome measure
1. Disease Free Survival (DFS) will be assessed via radiological assessments through CT scans. DFS is defined as the interval from randomisation to first evidence of local recurrence, new primary RCC, distant metastases or death from any cause, whichever occurs first. All CT scans received will be further assessed by an independent review panel to ensure that progression has been reported correctly. Primary analysis for DFS will be carried out when:
Arm C vs Arm A
276 control arm events (approx 6.25 years) have occurred
Arm B vs Arm A
416 control arm events (approx 10.75 years) have occurred
DFS Interim analysis will be carried out at the following timepoints:
Arm B vs Arm A
Interim analysis 1 (overwhelming and lack-of-benefit) when 197 control arm events have occurred (approx 4.75 years)
Interim analysis 2 (overwhelming and lack-of-benefit) when 277 control arm events have occurred (approx 6.25 years)
Interim analysis 3 (overwhelming benefit) when 332 control arm events have occurred (approx 8 years)
Arm C vs Arm A:
Interim analysis 1 (overwhelming benefit and lack-of-benefit) when 198 control arm events have occurred (approx 4.75 years)
2. Overall Survival (OS) is another co-primary endpoint. OS is defined as all cause mortality, the time from randomisation to death from any cause (including RCC). For UK sites, survival status will also be collected against national mortality registers. Comparison of overall survival for Arm B vs Arm A will be carried out at approximately 20.5 years after trial commencement (triggered by 344 control arm OS events). For Arm C vs Arm A, overall survival will be assessed at approximately 13.25 years after trial commences (triggered by 238 control arm OS events)
Secondary outcome measures
Assessment of all secondary outcomes will take place at each follow-up visit at week 52, then 3 monthly up to the end of year 3, 6-monthly up to year 5 and annually thereafter.
1. Metastasis-free survival (MFS), defined as the interval from randomisation to first evidence of metastasis or death from RCC, measured via radiological means (CT scan with contrast)
2. RCC-specific survival time, defined as the time from randomisation to death from RCC, reported on trial-specific CRF
3. Quality of life, measured using quality of life questionnaires (EQ-5D and QLQ-C30 CRFs) at baseline, week 16, month 15, month 36 visits and at progression (if progression occurs before month 36)
4. Toxicity, reported on trial-specific CRF
5. Patient preferences for adjuvant immunotherapy information collected through the optional PAIR questionnaire completed at baseline, at the week 12 visit and the month 15 visit, or approximately 3 months after the last treatment visit if patient stops treatment early
Secondary outcome measures will be assessed after the primary analysis and therefore will be confirmed at a later date
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Histologically proven RCC (all cell types of RCC are eligible, except for pure oncocytoma, collecting duct, medullary and transitional cell cancer [TCC]); no evidence of residual macroscopic disease on post-operative CT scan after resection of RCC. Patients with treated bilateral synchronous RCCs are eligible
2. At the start of recruitment patients with Leibovich score 3-11 will be eligible for randomisation. MRC CTU at UCL will monitor accrual and stop recruiting intermediate risk patients (Leibovich Score 3-5) after three years or when intermediate risk patients contribute 25% of the total accrual target, whichever is earlier. Recruitment of patients with Leibovich Score 6 11 will continue until the accrual target is reached
3. Patients should have had surgery at least 28 days but no more than 91 days prior to randomisation date
4. Post-operative scans should be performed within 28 days prior to randomisation
5. WHO Performance Status 0 or 1
6. Patient has archival FFPE pathology tissue (FFPE tumour block from nephrectomy, or a minimum of 10 unstained slides) available as well as a baseline EDTA blood sample and agrees to provide a sample for future biomarker testing
7. Adequate normal organ and marrow function:
7.1. Haemoglobin ≥9.0g/dL (transfusions will be allowed within 2 weeks prior to randomisation in order to achieve the entry criteria).
7.2. Absolute neutrophil count (ANC) ≥1.5 x 109/L (≥1500 per mm3)
7.3. Platelet count ≥100 x 109 (≥100,000 per mm3)
7.4. Bilirubin ≤1.5 x ULN (This will not apply to subjects with confirmed Gilbert’s syndrome (i.e., persistent or recurrent hyperbilirubinemia that is predominantly unconjugated in the absence of haemolysis or hepatic pathology), who will be allowed only in consultation with their physician)
7.5. AST/ALT ≤2.5 x ULN.
7.6. Calculated Creatinine Clearance level >40mL/min by Cockcroft Gault formula (using actual body weight)
8. 12-lead ECG on which QTcF must be <470 ms. In case of clinically significant ECG abnormalities, including a QTcF value >470 ms, two additional 12-lead ECGs should be obtained over a brief period (e.g., 30 minutes) to confirm the finding
9. Current weight ≥ 40kg
10. Subjects must be ≥18 years of age
11. Written informed consent obtained from the patient
12. Both men and women enrolled in this trial must be in agreement with trial policy on contraception during the treatment phase of the study and for 9 months afterwards. Egg donation, sperm donation and breastfeeding must be avoided
13. Evidence of post-menopausal status or negative urinary or serum pregnancy test for female pre menopausal patients. Women will be considered post-menopausal if they have been amenorrhoeic for 12 months without an alternative medical cause. The following age specific requirements apply:
13.1. Women <50 years of age will be considered post-menopausal if they have been amenorrhoeic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinising hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilisation (bilateral oophorectomy or hysterectomy)
13.2. Women ≥50 years of age will be considered post-menopausal if they have been amenorrhoeic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses >1 year ago, had chemotherapy induced menopause with last menses >1 year ago, or underwent surgical sterilisation (bilateral oophorectomy, bilateral salpingectomy, or hysterectomy)
Target number of participants
Participant exclusion criteria
1. Previous diagnosis of RCC
2. Metastatic or macroscopic residual disease
3. Patients with a single pulmonary nodule ≥5mm diameter are not eligible unless the nodule has had a definite benign diagnosis. Patients with multiple small, less than 5 mm nodules may be eligible if nodules have been shown to be radiologically stable for at least 8 weeks
4. Prior anticancer treatment (other than nephrectomy) for RCC
5. Any unresolved toxicity NCI CTCAE Grade ≥2 from previous anticancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria:
5.1. Patients with Grade ≥2 neuropathy will be evaluated on a case-by-case basis after consultation with the Study Physician.
5.2. Patients with irreversible toxicity not reasonably expected to be exacerbated by treatment with durvalumab or tremelimumab may be included only after consultation with the Study Physician
6. Prior malignancy which in the opinion of the investigator has an estimated risk of recurrence in 5 years greater than 5%
7. History of leptomeningeal carcinomatosis
8. Concurrent enrolment in another clinical study, unless it is an observational (non interventional) clinical study or during the follow up period of an interventional study
9. Major surgical procedure (as defined by the Investigator) within 28 days prior to the start of treatment. Local surgery of isolated lesions for palliative intent is acceptable
10. Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab or tremelimumab, with the exceptions of intranasal and inhaled corticosteroids or systemic corticosteroids at physiological doses, which are not to exceed 10 mg/day of prednisone, or an equivalent corticosteroid
11. Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [e.g., colitis or Crohn's disease], diverticulitis [with the exception of diverticulosis], systemic lupus erythematosus, Sarcoidosis syndrome, or Wegener syndrome [granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc]). The following are exceptions to this criterion:
11.1. Patients with vitiligo or alopecia
11.2. Patients with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement
11.3. Any chronic skin condition that does not require systemic therapy
11.4. Patients without active disease in the last 5 years may be included but only after consultation with the RAMPART Trial Management Team
11.5. Patients with coeliac disease controlled by diet alone
12. A history of immunodeficiency syndrome. Please consult the MRC CTU at UCL on an individual basis if there is any uncertainty.
13. History of allogeneic organ transplant.
14. Uncontrolled intercurrent illness including, but not limited to:
14.1. Ongoing or active infection
14.2. Symptomatic congestive heart failure
14.3. Uncontrolled hypertension
14.4. Unstable angina pectoris
14.5. Uncontrolled cardiac arrhythmia
14.6. Active peptic ulcer disease or gastritis
14.7. Active bleeding diatheses
14.8. Psychiatric illness or social situations that would limit compliance with study requirements or compromise the ability of the subject to give written informed consent.
15. Active infection including:
15.1. Tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and TB testing in line with local practice)
15.2. Hepatitis B (known positive HBV surface antigen (HBsAg) result)
15.3. Hepatitis C
15.4. Human immunodeficiency virus (positive HIV 1/2 antibodies). Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti HBc] and absence of HBsAg) are eligible
Note: Patients positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA
16. Receipt of live attenuated vaccine within 30 days prior to the start of treatment. Note: Patients, if enrolled, should not receive live vaccine while receiving investigational medicinal product and up to 30 days after the last dose of investigational medicinal product.
17. Pregnant or breastfeeding patients
18. Any condition that, in the opinion of the investigator, would interfere with evaluation of study treatment or interpretation of patient safety or study results
19. Known allergy or hypersensitivity to durvalumab or tremelimumab, or any of their excipients
20. Previous investigational medicinal product assignment in the present study
Recruitment start date
Recruitment end date
Countries of recruitment
Australia, France, United Kingdom, United States of America
Trial participating centre
Participating centres are being confirmed. List of centres will be updated in due course
Kidney Cancer UK
Funding Body Type
Funding Body Subtype
Funding Body Type
private sector organisation
Funding Body Subtype
Medical Research Council
Funding Body Type
Funding Body Subtype
Results and Publications
Publication and dissemination plan
The protocol and all patient-related documents will be made available on the trial website (https://www.rampart-trial.org/) once approved by ethics committee and regulatory authority. Planned publication in a high-impact peer reviewed journal; articles will be open access in line with UCL publication policy.
IPD sharing statement
The RAMPART Trial Management Team should be contacted in the first instance with any data release requests (email@example.com). Review of the request will be then escalated to the Trial Management Group and TSC for final approval. MRC CTU SOP on Data Sharing will be followed for the review and release process. Requests to release control arm data will be considered at any point during the trial but data release requests for the entire dataset (including treatment arms) will not be granted until the primary end-points have been reached and published. Consent will be obtained by patients prospectively and data release is subject to successful execution of the relevant contract.
Intention to publish date
Participant level data
Available on request
Basic results (scientific)