ClinicalTrials.gg
RecruitingNCT05327686SAMURAIUpdated Oct 23, 2026

Testing the Addition of Stereotactic Radiation Therapy With Immune Therapy for the Treatment of Patients With Unresectable or Metastatic Renal Cell Cancer, SAMURAI Trial

A Phase 2 interventional study of Avelumab and Axitinib in Metastatic Renal Cell Carcinoma, Stage III Renal Cell Cancer AJCC v8 and Stage IV Renal Cell Cancer AJCC v8, sponsored by NRG Oncology. Recruiting at 348 sites in 4 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-23.

Sponsored by NRG Oncology · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Feb 2023; still recruiting 3 years 9 months later.
Updated Oct 23, 2026Site recruiting status changed26 sites added+1 moreGo to Updates ↓

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Phase
Phase 2
Study type
Interventional
Enrollment
240
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 1,142 studies in Carcinoma, Renal Cell with a site in United States — 156 open to participants now, 280 under way, 26 of them phase 3. Carcinoma, Renal Cell · United States.

Planned enrollment
124th of 1,008
240 · median 40
Started
2023
with 51 others
Phase 2
382 of 1,142
45 open now
Primary completion
2028-06
later than 198 of 278 live
Registered
948th of 1,142
by date

Among the 1,142 studies in Carcinoma, Renal Cell with a site in United States, this one is the 124th largest by planned enrollment of the 1,008 interventional ones that give a count, is one of 52 that started in 2023, is one of 382 in phase 2, reaches primary completion later than 198 of the 278 other live ones, and was the 948th registered.

Carcinoma, Renal Cell

2,038 studies on the registry are indexed under Carcinoma, Renal Cell; 395 are open to participants now.

Browse Carcinoma, Renal Cell studies →

Open to participants now

156 of the 1,142 studies in Carcinoma, Renal Cell with a site in United States are open now. Recruiting first, the newest first:

151 more — sign in →

All 156 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 307 Carcinoma, Renal Cell studies recruiting now, 254 (83%) set no upper age limit and 18 (6%) stop at 75 or younger; 20 take children under 18; 19 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

This phase II trial tests whether the addition of radiation to the primary tumor, typically given with stereotactic ablative radiation therapy (SABR), in combination with standard of care immunotherapy improves outcomes in patients with renal cell cancer that is not recommended for surgery and has spread from where it first started (primary site) to other places in the body (metastatic). Radiation therapy uses high energy photons to kill tumor cells and shrink tumors. Stereotactic body radiation therapy uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses of radiation over a shorter period and cause less damage to normal tissue. Immunotherapy with monoclonal antibodies, such as nivolumab, ipilimumab, avelumab, and pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Axitinib, cabozantinib, and lenvatinib are in a class of medications called antiangiogenic agents. They work by stopping the formation of blood vessels that bring oxygen and nutrients to tumor. This may slow the growth and spread of tumor. Giving SABR in combination with standard of care immunotherapy may help shrink or stabilize the cancer in patients with renal cell cancer.

Read the detailed description

PRIMARY OBJECTIVE:

I. To determine whether the addition of stereotactic ablative radiotherapy (SABR) to the primary tumor in combination with immunotherapy improves outcomes compared to immunotherapy alone in patients with metastatic, unresected, renal cell carcinoma (RCC). The primary endpoint is nephrectomy and radiographic progression-free survival (nrPFS) with progression determined as per iRECIST criteria.

SECONDARY OBJECTIVES:

I. To assess the safety, toxicity and tolerability of the two treatment strategies as defined by Common Terminology Criteria for Adverse Events (CTCAE) version 5 in each treatment arm.

II. To assess the objective response rate (ORR) by Immune-related Response Evaluation Criteria in Solid Tumors (iRECIST) in each treatment arm.

III. Nephrectomy and radiographic progression-free survival excluding nephrectomies that were performed for non-protocol specified indications (nephrectomy and radiographic progression-free survival [nrPFS]2).

IV. Radiographic progression-free survival (rPFS). V. To assess overall survival (OS) in each treatment arm. VI. To assess the time to subsequent second-line therapy or death in each treatment arm.

VII. To assess the rate of cytoreductive nephrectomy in each treatment arm. VIII. To assess treatment-free survival in patients who discontinue therapy for reason other than radiographic disease progression.

IX. To assess the ORR by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and iRECIST in the primary renal mass.

EXPLORATORY OBJECTIVES:

I. To assess composite nrPFS in the predefined histological subgroups below:

Ia. Clear cell versus non-clear cell histology; Ib. International Metastatic RCC database consortium (IMDC) intermediate versus poor risk group; Ic. Systemic treatment with immunotherapy-immunotherapy combination versus immunotherapy-vascular endothelial growth factor (VEGF) targeted therapy combination; Id. Sarcomatoid versus non sarcomatoid variant. II. To identify prognostic and predictive biomarkers of response to SABR in the context of immunotherapy based treatment via assessment of tissue and blood based biomarkers.

III. To evaluate the abscopal effect of SABR with systemic therapy. IIIa. Compare ORR in non-irradiated target lesions in the control arm patients undergoing immunotherapy alone to the experimental arm undergoing SABR + immunotherapy.

IV. To evaluate the impact of treatment on level of inferior vena cava (IVC) thrombus.

V. To compare accruing center identified iRECIST progression and centrally identified iRECIST progression events on computed tomography (CT).

OUTLINE: Patients are randomized to 1 of 2 arms. Patients are randomized in a 2:1 ratio favoring the SABR arm.

ARM I: Patients receive one of the following immunotherapy regimens per physician discretion: nivolumab intravenously (IV) over 30 minutes and ipilimumab IV over 30 minutes every 3 weeks for 4 doses followed by nivolumab IV over 30 minutes every 2 or 4 weeks; pembrolizumab IV over 30 minutes every 3 or 6 weeks and axitinib orally (PO) twice daily (BID); avelumab IV over 60 minutes every 2 weeks and axitinib PO BID; nivolumab IV over 30 minutes every 2 or 4 weeks and cabozantinib PO once daily (QD); OR pembrolizumab IV over 30 minutes every 3 or 6 weeks and lenvatinib PO QD. Treatment with immunotherapy continues in the absence of disease progression or unacceptable toxicity. Patients also undergo computed tomography (CT) scan or magnetic resonance imaging (MRI) throughout the trial. Patients may also undergo a bone scan as clinically indicated and blood sample collection throughout the trial.

ARM II: Patients undergo SABR on 3 different days over 1-3 weeks and receive immunotherapy as in Arm I. Patients also undergo CT scan or MRI throughout the trial. Patients may also undergo a bone scan as clinically indicated and blood sample collection throughout the trial.

After completion of study treatment, patients are followed up every 6 months for 5 years, and then annually for 3 years.

03

Conditions studied

  • Metastatic Renal Cell Carcinoma
  • Stage III Renal Cell Cancer AJCC v8
  • Stage IV Renal Cell Cancer AJCC v8
  • Unresectable Renal Cell Carcinoma
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Pathologically (histologically or cytologically) proven diagnosis of renal cell carcinoma prior to registration
  • Node-positive unresectable (TxN1Mx) or (TxNxM1) based on the following diagnostic workup:

    • History/physical examination within 45 days prior to registration
    • CT/magnetic resonance imaging (MRI) of the chest/abdomen/pelvis within 45 days prior to registration
  • Patients must have IMDC intermediate (1-2 factors) or poor risk disease (>= 3 factors)
  • Patients with a prior or concurrent whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the regimen are eligible for this trial
  • Patients with (node positive or metastatic) as defined by version 1.1 excluding the primary renal tumor
  • Patient not recommended for or refused immediate cytoreductive nephrectomy
  • Candidate for standard of care therapy with either immuno-oncology (IO)-IO or IO-VEGF combination regimen
  • Primary renal tumor measuring 20 cm or less in anterior to posterior dimension only on axial imaging
  • Age >= 18
  • performance status >= 60 within 45 days prior to registration
  • >= 8 g/dL (transfusions are allowed) (within 45 days prior to registration)
  • count >= 50,000/mm\^3 (within 45 days prior to registration)
  • (ANC) >= 1500/mm\^3 (within 45 days prior to registration)
  • Calculated (Calc.) >= 30 mL/min (within 45 days prior to registration)

    • Creatinine clearance (CrCl) >= 30 mL/min estimated by Cockcroft-Gault Equation
    • For African American patients specifically whose renal function is not considered adequate by the formula above, an alternative formula that takes race into account (Chronic Kidney Disease Epidemiology Collaboration formula) should be used for calculating the related estimated glomerular filtration rate (GFR) with a correction factor for African American race creatinine clearance for trial eligibility, where GFR >= 30 mL/min/1.73m\^2 will be considered adequate
  • Total =\< 1.5 x (ULN) (except subjects with Gilbert Syndrome, who can have total bilirubin \< 3.0 mg/dL) (within 45 days prior to registration)
  • and alanine aminotransferase (AST and ALT) =\< 3 x upper limit of normal (ULN) or \< 5 x ULN if hepatic metastases present (within 45 days prior to registration)
  • Patients with known (HIV) on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial. Testing is not required for entry into protocol
  • For patients with evidence of chronic virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
  • Patients with a history of virus (HCV) infection must have been treated and cured. Patients with HCV infection who are currently on treatment are eligible if they have an undetectable HCV viral load
  • The patient must agree to use a highly effective , including men with vasectomies if they are having sex with a woman of or with a woman who is pregnant, while on study drug and for 6 months following the last dose of study drug. Childbearing potential is defined as any person who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or who is not
  • The patient or a legally authorized representative must provide study-specific prior to study entry and, for patients treated in the United States (U.S.), authorization permitting release of personal health information

Exclusion criteria

Exclusion Criteria:

  • Patients with planned treatment of all disease with definitive therapy including either surgery, ablative (non-palliative) doses of radiation, or intervention of some type (definitive interventional radiology techniques) to ALL metastatic sites rendering the patient without extra-renal . Patients NOT planned for definitive treatment of all metastatic sites are eligible. Lesions radiated palliatively are not eligible for response assessment
  • Patients with untreated or unstable or cranial epidural disease

    • Note: Patients who have been adequately treated with radiotherapy, radiosurgery, or surgery and stable for at least 4 weeks prior to registration as documented by MRI or CT imaging or deemed stable by clinical investigator are eligible. Treated brain metastases are defined as having no ongoing requirement for and no evidence of progression or hemorrhage after treatment for at least 4 weeks prior to registration as documented by MRI or CT imaging or deemed stable by clinical investigator
  • Prior radiotherapy to the kidney that would result in overlap of radiation therapy fields treatment of the primary tumor
  • Any systemic therapy for metastatic renal cell carcinoma (RCC) that was initiated > 90 days before registration, note that prior chemotherapy for a different cancer is allowed (completed > 3 years prior to registration)
  • Severe, active comorbidity defined as follows:

    • Active disease requiring ongoing therapy including systemic treatment with corticosteroids (> 10 mg daily prednisone equivalents) or other medications daily. Inhaled steroids and adrenal replacement steroid doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease
    • History of severe allergic, anaphylactic or other reactions to chimeric or humanized antibodies
    • Active tuberculosis (purified protein derivative [PPD] response without active tuberculosis [TB] is allowed)
    • Uncontrolled hypertension (systolic blood pressure [BP] >= 190 mmHg or diastolic BP > 110 mmHg)
    • Major surgery requiring hospital admission =\< 28 days prior to registration
    • Any serious (requiring hospital stay or long term rehab) non-healing wound, ulcer, or bone fracture within 45 days prior to registration
    • Any arterial thrombotic (ST elevation myocardial infarction [STEMI], non-ST elevation myocardial infarction [NSTEMI], cerebrovascular accident [CVA], etc) events within 180 days prior to registration
    • Active New York (NY) Heart Association class 3-4 heart failure symptoms
    • Moderate or severe hepatic impairment ( B or C)
    • Any history of untreated pulmonary embolism or deep venous thrombosis (DVT) within 180 days prior to registration. (Any asymptomatic or treated pulmonary embolism or asymptomatic treated deep venous thrombosis > 30 days prior to registration is allowed)
    • Unstable cardiac arrhythmia within 180 days prior to registration
    • History of abdominal fistula, gastrointestinal perforation, intra-abdominal abscess, bowel obstruction, or gastric outlet obstruction within 180 days prior to registration
    • History of or active inflammatory bowel disease
    • Malabsorption syndrome within 45 days prior to registration
  • Pregnancy and individuals unwilling to discontinue nursing. For women of child bearing potential must have a negative pregnancy test =\< 45 days prior to registration
Terms in these criteria, in plain language(27)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
240 participants (estimated)

Study arms

  • Active comparator
    Arm I (standard of care immunotherapy)

    Patients receive one of the following immunotherapy regimens per physician discretion: nivolumab IV over 30 minutes and ipilimumab IV over 30 minutes every 3 weeks for 4 doses followed by nivolumab IV over 30 minutes every 2 or 4 weeks; pembrolizumab IV over 30 minutes every 3 or 6 weeks and axitinib PO BID; avelumab IV over 60 minutes every 2 weeks and axitinib PO BID; nivolumab IV over 30 minutes every 2 or 4 weeks and cabozantinib PO QD; OR pembrolizumab IV over 30 minutes every 3 or 6 weeks and lenvatinib PO QD. Treatment with immunotherapy continues in the absence of disease progression or unacceptable toxicity. Patients also undergo CT scan or MRI throughout the trial. Patients may also undergo a bone scan as clinically indicated and blood sample collection throughout the trial.

    Biological: Avelumab · Drug: Axitinib · Procedure: Biospecimen Collection · Procedure: Bone Scan · Drug: Cabozantinib · Procedure: Computed Tomography · Biological: Ipilimumab · Drug: Lenvatinib · Procedure: Magnetic Resonance Imaging · Biological: Nivolumab · Biological: Pembrolizumab

  • Experimental
    Arm II (SABR, standard of care immunotherapy)

    Patients undergo SABR on 3 different days over 1-3 weeks and receive immunotherapy as in Arm I. Patients also undergo CT scan or MRI throughout the trial. Patients may also undergo a bone scan as clinically indicated and blood sample collection throughout the trial.

    Biological: Avelumab · Drug: Axitinib · Procedure: Biospecimen Collection · Procedure: Bone Scan · Drug: Cabozantinib · Procedure: Computed Tomography · Biological: Ipilimumab · Drug: Lenvatinib · Procedure: Magnetic Resonance Imaging · Biological: Nivolumab · Biological: Pembrolizumab · Radiation: Stereotactic Ablative Radiotherapy

Interventions

  • BiologicalAvelumab

    Given IV

    Also known as: Bavencio, MSB 0010718C, MSB-0010718C, MSB0010718C

  • Given PO

    Also known as: AG 013736, AG-013736, AG013736, Inlyta

  • ProcedureBiospecimen Collection

    Undergo collection of blood

    Also known as: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection

  • ProcedureBone Scan

    Undergo bone scan

    Also known as: Bone Scintigraphy

  • Given PO

  • ProcedureComputed Tomography

    Undergo CT

    Also known as: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, Diagnostic CAT Scan, Diagnostic CAT Scan Service Type, tomography

  • BiologicalIpilimumab

    Given IV

    Also known as: Anti-Cytotoxic T-Lymphocyte-Associated Antigen-4 Monoclonal Antibody, BMS 734016, BMS-734016, BMS734016, Ipilimumab Biosimilar CS1002, MDX 010, MDX-010, MDX-CTLA4, MDX010, Yervoy

  • Given PO

    Also known as: E 7080, E-7080, E7080, ER-203492-00, Multi-Kinase Inhibitor E7080

  • ProcedureMagnetic Resonance Imaging

    Undergo MRI

    Also known as: Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR, MR Imaging, MRI, MRI Scan, MRIs, NMR Imaging, NMRI, Nuclear Magnetic Resonance Imaging, sMRI, Structural MRI

  • BiologicalNivolumab

    Given IV

    Also known as: ABP 206, BCD-263, BMS 936558, BMS-936558, BMS936558, CMAB819, MDX 1106, MDX-1106, MDX1106, NIVO, Nivolumab Biosimilar ABP 206, Nivolumab Biosimilar BCD-263, Nivolumab Biosimilar CMAB819, ONO 4538, ONO-4538, ONO4538, Opdivo

  • BiologicalPembrolizumab

    Given IV

    Also known as: BCD-201, GME 751, GME751, Keytruda, Lambrolizumab, MK 3475, MK-3475, MK3475, Pembrolizumab Biosimilar BCD-201, Pembrolizumab Biosimilar GME751, Pembrolizumab Biosimilar QL2107, Pembrolizumab Biosimilar RPH-075, Pembrolizumab Biosimilar SB27, QL2107, RPH 075, RPH-075, RPH075, SB 27, SB-27, SB27, SCH 900475, SCH-900475, SCH900475

  • RadiationStereotactic Ablative Radiotherapy

    42 Gy in 3 fractions

    Also known as: SABER, SABR/SBRT

06

What researchers measure

Primary outcomes

  1. Nephrectomy and radiographic progression-free survival (nrPFS)

    Nephrectomy and radiographic progression-free survival time is defined as time from randomization to the date of first radiographic progression, nephrectomy, death, or last negative evaluation (censored). nrPFS rates are estimated using the Kaplan-Meier method. Progression is determined by the Response Evaluation Criteria in Solid Tumors version 1.1 criteria modified for immunotherapy trials (iRECIST).

    Time frame: From randomization to last follow-up, up to 8 years

Secondary outcomes

  1. Percentage of participants with complete or partial response

    Best overall response is determined by the iRECIST version 1.1.

    Time frame: From randomization to disease progression

  2. Percentage of participants with complete or partial response in the primary renal mass

    Best overall response is determined by the iRECIST version 1.1.

    Time frame: From randomization to disease progression

  3. Radiographic progression-free survival (rPFS)

    Radiographic progression-free survival time is defined as time from randomization to the date of first radiographic progression, death, or last negative evaluation (censored). rPFS rates are estimated using the Kaplan-Meier method. Radiographic progression is determined by the iRECIST version 1.1.

    Time frame: From randomization to last follow-up, up to 8 years

  4. Nephrectomy and radiographic progression-free survival excluding nephrectomies that were performed for non-protocol specified reasons (nrPFS2)

    Nephrectomy and radiographic progression-free survival time (excluding nephrectomies that were performed for non-protocol specified reasons) is defined as time from randomization to the date of first radiographic progression, nephrectomy performed for protocol-stated reasons, death, or last negative evaluation (censored). nrPFS2 rates are estimated using the Kaplan-Meier method. Progression is determined by the iRECIST version 1.1.

    Time frame: From randomization to last follow-up, up to 8 years

  5. Overall survival

    Overall survival time is defined as time from randomization to the date of death or last known follow-up (censored). Overall survival rates are estimated by the Kaplan-Meier method.

    Time frame: From randomization to last follow-up, up to 8 years

  6. Second-line therapy-free survival

    Second-line therapy-free survival time is defined as time from randomization to the date of the initiation of second-line therapy, death, or last known follow-up (censored). Second-line therapy-free survival rates are estimated using the Kaplan-Meier method.

    Time frame: From randomization to last follow-up, up to 8 years

  7. Percentage of participants who undergo cytoreductive nephrectomy

    Time frame: From randomization to last follow-up, up to 8 years

  8. Treatment-free survival

    Treatment-free survival time is defined as time from the discontinuation of protocol therapy to the date of death or last follow-up (censored). Treatment-free survival rates are estimated using the Kaplan-Meier method.

    Time frame: From randomization to last follow-up, up to 8 years

  9. Percentage of participants with adverse events

    Common Terminology Criteria for Adverse Events 5.0 grades adverse event severity from 1=mild to 5=death.

    Time frame: From randomization to last follow-up, up to 8 years

Other outcomes

  1. nrPFS and overall survival

    Exploratory analyses will compare nrPFS and overall survival in four pre-defined subgroups: clear cell versus (vs.) non-clear cell histology, intermediate vs. poor International Metastatic RCC database consortium risk group, treatment with immuno-oncology (IO)-IO vs. IO-vascular endothelial growth factor, and sarcomatoid vs. non sarcomatoid variant. Forest plots will be constructed showing estimated hazard ratios from Cox models and 90% confidence intervals generated within each subgroup. Treatment-by-subgroup interaction terms will be incorporated into the Cox modelling to assess whether the effect of stereotactic ablative radiotherapy (SABR) varies significantly by subgroup; however, these analyses will be considered hypothesis-generating only.

    Time frame: From randomization to last follow-up, up to 8 years

  2. Prognostic and predictive biomarkers

    Will be accomplished by including the biomarkers in Cox time-to-event regression models for the evaluation of prognostic factors. Treatment-by-biomarker interaction terms will be incorporated into the modelling process to assess for potential predictive markers.

    Time frame: From randomization to last follow-up, up to 8 years

  3. Abscopal effect of SABR with systemic therapy

    These analyses will include only patients in the control arm who have not received any palliative radiation therapy and those in the experimental arm who have received protocol defined stereotactic body radiation therapy only without additional radiation therapy. Response rates among lesions outside the renal mass will be determined based in iRECIST criteria and compared using a chi-square test.

    Time frame: From randomization to disease progression

  4. Impact of treatment on the level of inferior vena cava (IVC) thrombus

    Will be assessed by comparing the rates of IVC thromboembolism using Fisher's exact test. Cumulative incidence curves with death as a competing risk will also be generated and compared using the Fine-Gray test.

    Time frame: From randomization to last follow-up, up to 8 years

  5. Accuracy of accruing center radiologist defined progression as compared with central radiology defined progression

    This will take place at the conclusion of the trial by our diagnostic radiologists. Will determine the number and proportion of center radiologist defined progressions (confirmed per iRECIST) that are validated/not validated upon central review. Will also examine all center radiologist defined pseudo progressions (i.e., not confirmed per iRECIST) and determine the number that are also declared pseudo progressions upon central review.

    Time frame: From randomization to last follow-up, up to 8 years

07

Study locations

303 of 348 sites recruiting

Showing the first 100 of 348 sites across 4 countries. Choose a country and city above to see the rest.

08

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Feb 2023 (actual). Primary completion is estimated for Jun 2028, 64 months after the start.

Of 183 non-industry phase 2 interventional studies under Carcinoma, Renal Cell, half reached primary completion within 67 months of starting (the median), counting those still running; a quarter within 41 and three quarters within 98. This study's planned 64 months is close to that.

Counting every sponsor, half of 230 studies reached it within 58 months; a quarter within 33 and three quarters within 94.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 7, 2022
First posted
Apr 14, 2022
StartActual
Feb 1, 2023
Primary completionEst.
Jun 15, 2028
CompletionEst.
Jun 15, 2033
Last update
Oct 23, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
26 sites added, 6 sites removed. 14 sites changed recruiting status (7 now suspended, 7 now recruiting)
Show 14 sites
  • Kingman Regional Medical Center · Kingman, United StatesRecruiting→Suspended
  • PCR Oncology · Arroyo Grande, United StatesRecruiting→Suspended
  • Alton Memorial Hospital · Alton, United StatesActive, not recruiting→Recruiting
  • Memorial Hospital East · Shiloh, United StatesActive, not recruiting→Recruiting
  • Corewell Health Farmington Hills Hospital · Farmington Hills, United StatesRecruiting→Suspended
  • Siteman Cancer Center at Saint Peters Hospital · City of Saint Peters, United StatesActive, not recruiting→Recruiting
  • Siteman Cancer Center at West County Hospital · Creve Coeur, United StatesActive, not recruiting→Recruiting
  • Washington University School of Medicine · St Louis, United StatesActive, not recruiting→Recruiting
  • Siteman Cancer Center-South County · St Louis, United StatesActive, not recruiting→Recruiting
  • Siteman Cancer Center at Christian Hospital · St Louis, United StatesActive, not recruiting→Recruiting
  • Peter MacCallum Cancer Centre · Melbourne, AustraliaRecruiting→Suspended
  • CHU de Quebec-L'Hotel-Dieu de Quebec (HDQ) · Québec, CanadaRecruiting→Suspended
  • Beacon Hospital · Dublin, IrelandRecruiting→Suspended
  • Saint Lukes Hospital · Dublin, IrelandRecruiting→Suspended
Show 26 added (25 United States, 1 Ireland)
  • Highlands Oncology Group - Fayetteville · Fayetteville, United States
  • Highlands Oncology Group - Rogers · Rogers, United States
  • Highlands Oncology Group · Springdale, United States
  • The Angeles Clinic and Research Institute - West Los Angeles Office · Los Angeles, United States
  • Moffitt Cancer Center at Speros · Land O' Lakes, United States
  • Moffitt Cancer Center at SouthShore · Ruskin, United States
  • Moffitt Cancer Center-International Plaza · Tampa, United States
  • Moffitt Cancer Center - McKinley Campus · Tampa, United States
  • Moffitt Cancer Center · Tampa, United States
  • Moffitt Cancer Center at Wesley Chapel · Wesley Chapel, United States
  • Northwestern Medicine Cancer Center Old Irving Park · Chicago, United States
  • Lahey Clinic · Burlington, United States
  • Mercy Hospital · Coon Rapids, United States
  • Park Nicollet Clinic - Saint Louis Park · Saint Louis Park, United States
  • Renown Regional Medical Center · Reno, United States
  • University of New Mexico Cancer Center · Albuquerque, United States
  • Wake Forest Baptist Health - Hematology Oncology - Statesville · Statesville, United States
  • Geisinger Cancer Center Dickson City · Dickson City, United States
  • UPMC Hillman Cancer Center · Pittsburgh, United States
  • VCU Massey Cancer Center at Stony Point · Richmond, United States
  • VCU Massey Comprehensive Cancer Center · Richmond, United States
  • Vandalia Health/CAMC Institute for Academic Medicine · Charleston, United States
  • Aspirus Cancer Care-Antigo-Volm Cancer Center · Antigo, United States
  • Aspirus Cancer Care-Rhinelander-James Beck Cancer Center · Rhinelander, United States
  • Aspirus Cancer Care-Wausau · Wausau, United States
  • University College Hospital Galway · Galway, Ireland
Show 6 removed
  • Lahey Hospital and Medical Center · Burlington, United States
  • University of Pittsburgh Cancer Institute (UPCI) · Pittsburgh, United States
  • West Virginia University Charleston Division · Charleston, United States
  • Langlade Hospital and Cancer Center · Antigo, United States
  • Aspirus Cancer Care - James Beck Cancer Center · Rhinelander, United States
  • Aspirus Regional Cancer Center · Wausau, United States
Oct 23, 2026
Secondary outcomes
1 edited
What changed in the outcomes
  • EditedPercentage of participants with grade 3+ and with grade 4+ treatment-related adverse eventsTime frame: From randomization to last follow-up, up to 8 years
Oct 23, 2026
Site contacts
Changed at 23 sites. See the sites
Show 23 sites
  • Kingman Regional Medical Center · Kingman, United StatesContact removed r•••@sncrf.org · •••0013Contact removed (no phone or email listed)
  • PCR Oncology · Arroyo Grande, United StatesContact removed r•••@sncrf.org · •••0013Contact removed (no phone or email listed)
  • Alton Memorial Hospital · Alton, United StatesContact added •••7323Contact added (no phone or email listed)
  • Memorial Hospital East · Shiloh, United StatesContact added d•••@wustl.edu · •••9912Contact added (no phone or email listed)
  • Corewell Health Farmington Hills Hospital · Farmington Hills, United StatesContact removed •••7695Contact removed (no phone or email listed)
  • Siteman Cancer Center at Saint Peters Hospital · City of Saint Peters, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
  • Siteman Cancer Center at West County Hospital · Creve Coeur, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
  • Washington University School of Medicine · St Louis, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
  • Siteman Cancer Center-South County · St Louis, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
  • Siteman Cancer Center at Christian Hospital · St Louis, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
  • Lovelace Medical Center-Saint Joseph Square · Albuquerque, United StatesContact person changed (no phone or email listed)
  • Lovelace Radiation Oncology · Albuquerque, United StatesContact person changed (no phone or email listed)
  • Geisinger Medical Center · Danville, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
  • Geisinger Medical Center-Cancer Center Hazleton · Hazleton, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
  • Geisinger Medical Oncology-Lewisburg · Lewisburg, United StatesContact •••8555→•••9200Contact H•••@geisinger.edu→c•••@geisinger.edu
  • Geisinger Cancer Services-Pottsville · Pottsville, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
  • Community Medical Center · Scranton, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
  • University of Wisconsin Carbone Cancer Center - Eastpark Medical Center · Madison, United StatesContact person changed (no phone or email listed)
  • University of Wisconsin Carbone Cancer Center - University Hospital · Madison, United StatesContact person changed (no phone or email listed)
  • Peter MacCallum Cancer Centre · Melbourne, AustraliaContact removed •••1521Contact removed (no phone or email listed)
  • CHU de Quebec-L'Hotel-Dieu de Quebec (HDQ) · Québec, CanadaContact removed r•••@crchuq.ulaval.caContact removed (no phone or email listed)
  • Beacon Hospital · Dublin, IrelandContact removed •••6691Contact removed (no phone or email listed)
  • Saint Lukes Hospital · Dublin, IrelandContact removed •••5000Contact removed (no phone or email listed)
Oct 23, 2026
Show all 1 update
  1. Oct 23, 2026
    26 sites added, 6 sites removed. 14 sites changed recruiting status (7 now suspended, 7 now recruiting)
    Show 14 sites
    • Kingman Regional Medical Center · Kingman, United StatesRecruiting→Suspended
    • PCR Oncology · Arroyo Grande, United StatesRecruiting→Suspended
    • Alton Memorial Hospital · Alton, United StatesActive, not recruiting→Recruiting
    • Memorial Hospital East · Shiloh, United StatesActive, not recruiting→Recruiting
    • Corewell Health Farmington Hills Hospital · Farmington Hills, United StatesRecruiting→Suspended
    • Siteman Cancer Center at Saint Peters Hospital · City of Saint Peters, United StatesActive, not recruiting→Recruiting
    • Siteman Cancer Center at West County Hospital · Creve Coeur, United StatesActive, not recruiting→Recruiting
    • Washington University School of Medicine · St Louis, United StatesActive, not recruiting→Recruiting
    • Siteman Cancer Center-South County · St Louis, United StatesActive, not recruiting→Recruiting
    • Siteman Cancer Center at Christian Hospital · St Louis, United StatesActive, not recruiting→Recruiting
    • Peter MacCallum Cancer Centre · Melbourne, AustraliaRecruiting→Suspended
    • CHU de Quebec-L'Hotel-Dieu de Quebec (HDQ) · Québec, CanadaRecruiting→Suspended
    • Beacon Hospital · Dublin, IrelandRecruiting→Suspended
    • Saint Lukes Hospital · Dublin, IrelandRecruiting→Suspended
    Show 26 added (25 United States, 1 Ireland)
    • Highlands Oncology Group - Fayetteville · Fayetteville, United States
    • Highlands Oncology Group - Rogers · Rogers, United States
    • Highlands Oncology Group · Springdale, United States
    • The Angeles Clinic and Research Institute - West Los Angeles Office · Los Angeles, United States
    • Moffitt Cancer Center at Speros · Land O' Lakes, United States
    • Moffitt Cancer Center at SouthShore · Ruskin, United States
    • Moffitt Cancer Center-International Plaza · Tampa, United States
    • Moffitt Cancer Center - McKinley Campus · Tampa, United States
    • Moffitt Cancer Center · Tampa, United States
    • Moffitt Cancer Center at Wesley Chapel · Wesley Chapel, United States
    • Northwestern Medicine Cancer Center Old Irving Park · Chicago, United States
    • Lahey Clinic · Burlington, United States
    • Mercy Hospital · Coon Rapids, United States
    • Park Nicollet Clinic - Saint Louis Park · Saint Louis Park, United States
    • Renown Regional Medical Center · Reno, United States
    • University of New Mexico Cancer Center · Albuquerque, United States
    • Wake Forest Baptist Health - Hematology Oncology - Statesville · Statesville, United States
    • Geisinger Cancer Center Dickson City · Dickson City, United States
    • UPMC Hillman Cancer Center · Pittsburgh, United States
    • VCU Massey Cancer Center at Stony Point · Richmond, United States
    • VCU Massey Comprehensive Cancer Center · Richmond, United States
    • Vandalia Health/CAMC Institute for Academic Medicine · Charleston, United States
    • Aspirus Cancer Care-Antigo-Volm Cancer Center · Antigo, United States
    • Aspirus Cancer Care-Rhinelander-James Beck Cancer Center · Rhinelander, United States
    • Aspirus Cancer Care-Wausau · Wausau, United States
    • University College Hospital Galway · Galway, Ireland
    Show 6 removed
    • Lahey Hospital and Medical Center · Burlington, United States
    • University of Pittsburgh Cancer Institute (UPCI) · Pittsburgh, United States
    • West Virginia University Charleston Division · Charleston, United States
    • Langlade Hospital and Cancer Center · Antigo, United States
    • Aspirus Cancer Care - James Beck Cancer Center · Rhinelander, United States
    • Aspirus Regional Cancer Center · Wausau, United States
    Secondary outcomes 1 edited
    What changed in the outcomes
    • EditedPercentage of participants with grade 3+ and with grade 4+ treatment-related adverse eventsTime frame: From randomization to last follow-up, up to 8 years
    Site contacts Changed at 23 sites. See the sites
    Show 23 sites
    • Kingman Regional Medical Center · Kingman, United StatesContact removed r•••@sncrf.org · •••0013Contact removed (no phone or email listed)
    • PCR Oncology · Arroyo Grande, United StatesContact removed r•••@sncrf.org · •••0013Contact removed (no phone or email listed)
    • Alton Memorial Hospital · Alton, United StatesContact added •••7323Contact added (no phone or email listed)
    • Memorial Hospital East · Shiloh, United StatesContact added d•••@wustl.edu · •••9912Contact added (no phone or email listed)
    • Corewell Health Farmington Hills Hospital · Farmington Hills, United StatesContact removed •••7695Contact removed (no phone or email listed)
    • Siteman Cancer Center at Saint Peters Hospital · City of Saint Peters, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
    • Siteman Cancer Center at West County Hospital · Creve Coeur, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
    • Washington University School of Medicine · St Louis, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
    • Siteman Cancer Center-South County · St Louis, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
    • Siteman Cancer Center at Christian Hospital · St Louis, United StatesContact added i•••@siteman.wustl.edu · •••3606Contact added (no phone or email listed)
    • Lovelace Medical Center-Saint Joseph Square · Albuquerque, United StatesContact person changed (no phone or email listed)
    • Lovelace Radiation Oncology · Albuquerque, United StatesContact person changed (no phone or email listed)
    • Geisinger Medical Center · Danville, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
    • Geisinger Medical Center-Cancer Center Hazleton · Hazleton, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
    • Geisinger Medical Oncology-Lewisburg · Lewisburg, United StatesContact •••8555→•••9200Contact H•••@geisinger.edu→c•••@geisinger.edu
    • Geisinger Cancer Services-Pottsville · Pottsville, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
    • Community Medical Center · Scranton, United StatesContact H•••@geisinger.edu→c•••@geisinger.edu
    • University of Wisconsin Carbone Cancer Center - Eastpark Medical Center · Madison, United StatesContact person changed (no phone or email listed)
    • University of Wisconsin Carbone Cancer Center - University Hospital · Madison, United StatesContact person changed (no phone or email listed)
    • Peter MacCallum Cancer Centre · Melbourne, AustraliaContact removed •••1521Contact removed (no phone or email listed)
    • CHU de Quebec-L'Hotel-Dieu de Quebec (HDQ) · Québec, CanadaContact removed r•••@crchuq.ulaval.caContact removed (no phone or email listed)
    • Beacon Hospital · Dublin, IrelandContact removed •••6691Contact removed (no phone or email listed)
    • Saint Lukes Hospital · Dublin, IrelandContact removed •••5000Contact removed (no phone or email listed)
    + 5 other changes: verification date, oversight details, description, arm descriptions and data sharing statement

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT05327686
Lead sponsor
NRG Oncology
Responsible party
Sponsor
First posted
Apr 14, 2022
Start date
Feb 1, 2023
Primary completion
Jun 15, 2028 (estimated)
Completion
Jun 15, 2033 (estimated)
Last update
Oct 23, 2026

Study contacts

William A Hall
principal investigator · NRG Oncology

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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