Testing the Safety and Feasibility of Immunotherapy Drugs, Botensilimab and Balstilimab, Before Surgery for Clear Cell Renal Cell Carcinoma, NEO RoBOT Trial

Sponsor
National Cancer Institute (NCI)
Study ID
NCT07516366
Phase
PHASE2
Status
Not Yet Recruiting

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Conditions

  • Clear Cell Renal Cell Carcinoma
  • Stage II Renal Cell Cancer AJCC v8
  • Stage III Renal Cell Cancer AJCC v8
  • Stage IV Renal Cell Cancer AJCC v8

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Balstilimab — BIOLOGICAL
    Given IV
  • Biospecimen Collection — PROCEDURE
    Undergo blood sample collection
  • Botensilimab — BIOLOGICAL
    Given IV
  • Computed Tomography — PROCEDURE
    Undergo CT
  • Nephrectomy — PROCEDURE
    Undergo nephrectomy
  • Questionnaire Administration — OTHER
    Ancillary studies

Study Details

This phase II trial tests the effect of botensilimab and balstilimab before surgery (neoadjuvant) in treating patients with high-risk clear cell renal cell cancer that has not spread from where it first started to other areas of the body (non-metastatic). The current standard treatment for patients with non-metastatic clear cell renal cell cancer may include surgery to completely remove the tumor. This typically involves removing the kidney or part of the kidney (nephrectomy). Immunotherapy with monoclonal antibodies, such as botensilimab and balstilimab, may help the body's immune system attack the tumor, and may interfere with the ability of tumor cells to grow and spread. Giving neoadjuvant botensilimab and balstilimab may be safe, tolerable, and/or effective in treating patients with high-risk non-metastatic clear cell renal cell cancer before undergoing a nephrectomy.

Key Dates

Start date
Aug 21, 2026
Status verified
May 2026
Primary completion
Aug 30, 2027
Completion
Aug 30, 2027

Study Design

Enrollment
16 participants (estimated)
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT

Arms

  • Experimental: Treatment (botensilimab, balstilimab)
    Patients receive botensilimab IV over 30 minutes on day 1 of weeks 1 and 7 and balstilimab IV over 30 minutes on day 1 of weeks 1, 3, 5, 7, 9, and 11 in the absence of disease progression or unacceptable toxicity. Patients undergo nephrectomy 12-16 weeks from the initiation of neoadjuvant therapy. Additionally, patients undergo blood sample collection and CT throughout the study.

Primary Outcome Measure

Proportion of patients successfully completing neoadjuvant treatment and undergoing planned definitive surgical resection of primary tumor (radical or partial nephrectomy) without significant treatment related delays [ Time Frame: Up to 1 year post-surgery ]

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