Study of Kidney Tumors in Young Patients


  • Study type

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • Site IRB
    • Rochester, Minnesota: 07-000195
    NCT ID: NCT00898365
    Sponsor Protocol Number: AREN03B2

About this study

This laboratory study is looking at kidney tumors in young patients. Collecting and storing samples of tumor tissue, blood, and urine from patients with cancer to study in the laboratory may help doctors learn more about changes that occur in deoxyribonucleic acid (DNA) and identify biomarkers related to cancer. It may also help the study of cancer in the future.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Patients with the first occurrence of any tumor of the kidney identified on CT scan or MRI are eligible for this study; histologic diagnosis is not required prior to enrollment but is required for all patients once on study
  • Eligible tumors include (but are not limited to):
    • Nephroblastic tumors
      • Nephroblastoma (Wilms' tumor) (favorable histology, anaplasia [diffuse, focal])
        • Patients with extra-renal nephroblastoma allowed
      • Nephrogenic rests and nephroblastomatosis
      • Cystic nephroma and cystic partially differentiated nephroblastoma
      • Metanephric tumors (metanephric adenoma, metanephric adenofibroma, metanephric stromal tumor) 
    • Mesoblastic nephroma (cellular, classic, mixed)
    • Clear cell sarcoma
    • Rhabdoid tumor (any malignant rhabdoid tumor occurring outside the CNS)
    • Renal epithelioid tumors of childhood (papillary renal cell carcinoma, medullary renal cell carcinoma, renal tumors associated with Xp11.2 translocations, oncocytic renal neoplasms after neuroblastoma)
    • Angiolipoma
    • Ossifying renal tumor of infancy
  • Patients with the first occurrence of the following tumors are also eligible:
    • Extrarenal nephroblastoma
    • Malignant rhabdoid tumor occurring anywhere outside the Central Nervous System
  • For ALL patients (with exception of bilateral, bilaterally predisposed or unilateral tumor in solitary kidney planning to enroll without biopsy), the following submissions are required:
    • A complete set of recut H & E slides
    • Representative formalin-fixed paraffin-embedded tissue block or if a block is unavailable, 10 unstained slides from a representative block of tumor
    • Institutional pathology report, transmittal form and pathology checklist
    • Copies of images and institutional reports of CT and/or MRI abdomen and pelvis
    • Copies of images and institutional report of CT chest for all malignant tumors
    • Institutional surgical report(s)
  • Patients with extrarenal Wilms tumor must have tumor tissue available for central review
  • Patients with extra-CNS malignant rhabdoid tumor must have tumor tissue available for central review
  • All patients and/or their parents or legal guardians must sign a written informed consent
  • All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Carola Arndt, M.D.

Contact us for the latest status

Contact information:

Cancer Center Clinical Trials Referral Office


More information


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

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