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NCT05327686 · NRG Oncology

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

(SAMURAI)

What this study is about

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 the usual treatment 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).

View original scientific description

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.

Interventions

BIOLOGICAL

Avelumab

Given IV

DRUG

Axitinib

Given PO

PROCEDURE

Biospecimen Collection

Undergo collection of blood

PROCEDURE

Bone Scan

Undergo bone scan

DRUG

Cabozantinib

Given PO

PROCEDURE

Computed Tomography

Undergo CT

BIOLOGICAL

Ipilimumab

Given IV

DRUG

Lenvatinib

Given PO

PROCEDURE

Magnetic Resonance Imaging

Undergo MRI

BIOLOGICAL

Nivolumab

Given IV

BIOLOGICAL

Pembrolizumab

Given IV

RADIATION

Stereotactic Ablative Radiotherapy

42 Gy in 3 fractions

Primary outcome measures

Nephrectomy and radiographic progression-free survival (nrPFS)

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

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).

Who can participate

This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.

Inclusion criteria

  • Pathologically (histologically or cytologically) proven diagnosis of renal cell carcinoma prior to registration
  • Node-positive unresectable (TxN1Mx) or metastatic (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 malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
  • Patients with measurable disease (node positive or metastatic) as defined by RECIST 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
  • Karnofsky performance status \>= 60 within 45 days prior to registration
  • Hemoglobin \>= 8 g/dL (transfusions are allowed) (within 45 days prior to registration)
  • Platelet count \>= 50,000/mm\^3 (within 45 days prior to registration)
  • Absolute neutrophil count (ANC) \>= 1500/mm\^3 (within 45 days prior to registration)
  • Calculated (Calc.) creatinine clearance \>= 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 CKD-EPI 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 bilirubin =\< 1.5 x upper limit of normal (ULN) (except subjects with Gilbert Syndrome, who can have total bilirubin \< 3.0 mg/dL) (within 45 days prior to registration)
  • Aspartate aminotransferase 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 human immunodeficiency virus (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 hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
  • Patients with a history of hepatitis C 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 contraception, including men with vasectomies if they are having sex with a woman of childbearing potential 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 postmenopausal
  • The patient or a legally authorized representative must provide study-specific informed consent prior to study entry and, for patients treated in the United States (U.S.), authorization permitting release of personal health information

Exclusion criteria

  • Patients with planned treatment of all metastatic 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 measurable disease. 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 brain metastases 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 steroids 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 autoimmune disease requiring ongoing therapy including systemic treatment with corticosteroids (\> 10 mg daily prednisone equivalents) or other immunosuppressive 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 hypersensitivity 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 (Child-Pugh 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

Where

  • Birmingham, Alabama
  • Kingman, Arizona
  • Phoenix, Arizona
  • Little Rock, Arkansas
  • Arroyo Grande, California
  • Beverly Hills, California
  • Burlingame, California
  • Duarte, California
  • Encinitas, California
  • Irvine, California
  • La Jolla, California
  • Los Angeles, California

And 239 more locations — see the full list below.

Collaborators

National Cancer Institute (NCI)

Related conditions & keywords

Metastatic Renal Cell CarcinomaStage III Renal Cell Cancer AJCC v8Stage IV Renal Cell Cancer AJCC v8Unresectable Renal Cell Carcinoma

Frequently asked questions

What is a clinical trial?

A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.

Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.

Will I be compensated?

Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.

Will I receive a placebo instead of treatment?

When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.

Can I leave a trial if I change my mind?

Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.

How long does a clinical trial last?

Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.

Data: ClinicalTrials.gov · synced Sep 18, 2026 · Source of record for eligibility and locations

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See if this study fits

A short prescreen based on this study's listed criteria. A coordinator confirms eligibility — this is not a medical assessment.

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Study locations

Choose your preferred location, or select flexible during enrollment.

ACTIVE_NOT_RECRUITING

Birmingham

Alabama

Location available
RECRUITING

Kingman

Arizona

Location available
RECRUITING

Phoenix

Arizona

Location available
RECRUITING

Little Rock

Arkansas

Location available
RECRUITING

Arroyo Grande

California

Location available
RECRUITING

Beverly Hills

California

Location available
RECRUITING

Burlingame

California

Location available
ACTIVE_NOT_RECRUITING

Duarte

California

Location available
RECRUITING

Encinitas

California

Location available

And 314 more locations available.

Express your interest

Share your contact details and a study coordinator can follow up about screening.

Secure & Confidential

Your information is protected and will only be shared with the research team.

What participation can include

  • Study-related care provided by the research team
  • Close monitoring by medical professionals
  • Possible compensation for time and travel*
  • The option to withdraw at any time
  • Contributing to medical research that may help future patients

*Compensation varies by study. Confirm details with coordinator.

Typical next steps

  1. 1.Submit this form
  2. 2.Phone screening
  3. 3.In-person assessment if eligible
  4. 4.Begin participation

Find More Kidney Cancer Trials by City

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Looking for Kidney Cancer Treatment in Birmingham?

Join others in Alabama exploring innovative treatment options through clinical research

Kidney Cancer Treatment Options in Birmingham, Alabama

If you're searching for Kidney Cancer treatment in Birmingham, participating in a clinical research study may provide access to innovative approaches under expert medical supervision. This study is actively recruiting participants in Birmingham, Kingman, Phoenix and surrounding areas.

Clinical trials offer participants the opportunity to receive cutting-edge treatments while contributing to medical research that may help future patients with Kidney Cancer. All study-related care is provided at no cost to participants.

Local Sites
3 locations in Alabama
Now Enrolling
Up to 240 participants
Quick Start
Screening available now

Why Consider a Clinical Trial for Kidney Cancer?

Potential Benefits

  • ✓Access to new treatment approaches before public availability
  • ✓Close monitoring by experienced medical professionals
  • ✓Study-related care provided at no cost
  • ✓Contribute to medical research for Kidney Cancer

What to Expect

  • →Initial screening to determine eligibility
  • →Regular check-ups and monitoring visits
  • →Possible compensation for time and travel
  • →You can withdraw at any time

Frequently Asked Questions About This Kidney Cancer Study

Important Clinical Trial Information

This information is provided for educational purposes and does not constitute medical advice. Clinical trial participation involves potential risks and benefits. Eligibility requirements apply and will be assessed during the screening process.

Study identifier: NCT05327686. For complete study details, visit ClinicalTrials.gov. Always consult with your healthcare provider before making decisions about your medical care or participating in clinical research.