Safety and Efficacy of Nivolumab in Patients With Advanced Non–Clear Cell Renal Cell Carcinoma: Results From the Phase IIIb/IV CheckMate 374 Study
Bibliographic record
Abstract
BACKGROUND: The open-label phase IIIb/IV CheckMate 374 study (NCT02596035) was conducted to validate the safety and efficacy of flat-dose nivolumab 240 mg every 2 weeks (Q2W) in previously treated advanced/metastatic renal cell carcinoma. Three cohorts included patients with predominantly clear cell histology, non-clear cell histologies, or brain metastases. We report safety and efficacy from the advanced non-clear cell RCC (nccRCC) cohort of CheckMate 374. METHODS: Eligible patients received 0 to 3 prior systemic therapies. Patients received nivolumab 240 mg Q2W for ≤24 months or until confirmed progression or unacceptable toxicity. The primary endpoint was incidence of high-grade (grade 3-5) immune-mediated adverse events (IMAEs). Exploratory endpoints included objective response rate (ORR), progression-free survival (PFS), and overall survival (OS). RESULTS: Forty-four patients had advanced nccRCC (papillary [n = 24], chromophobe [n = 7], unclassified [n = 8], other [n = 5]); 34.1% received ≥1 prior systemic regimen in the advanced/metastatic setting. With median follow-up of 11 (range, 0.4-27) months, no all-cause grade 3-5 IMAEs or treatment-related grade 5 adverse events were reported. ORR was 13.6% (95% confidence interval [CI], 5.2-27.4), with 1 complete response (chromophobe) and 5 partial responses (papillary [n = 2], chromophobe [n = 1], collecting duct [n = 1], and unclassified [n = 1] histology). Median PFS was 2.2 months (95% CI, 1.8-5.4). Median OS was 16.3 months (95% CI, 9.2-not estimable). CONCLUSIONS: Safety of flat-dose nivolumab 240 mg Q2W was consistent with previous results. Clinically meaningful efficacy was observed with responses in several histologies, supporting nivolumab as a treatment option for patients with advanced nccRCC, a patient population with high unmet need.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".