Systematic Review and Meta-Analysis of Response Rates in BCG-unresponsive Non–Muscle-Invasive Bladder Cancer: a Consensus Statement From the International Bladder Cancer Group
Bibliographic record
Abstract
There is a critical need to establish reference response rates following bladder-sparing therapies administered in the setting of bacillus Calmete-Guerin (BCG)-unresponsive non–muscle-invasive bladder cancer (NMIBC). We sought to determine the efficacy of different interventions in recent trials accruing patients fulfilling the strict BCGunresponsive definition established by the US Food and Drug Administration. We performed a systematic review and meta-analysis for clinical trials in the BCG-unresponsive disease space to include published and presented results. The primary endpoints were complete response rate for CIS±Ta/T1 tumors, recurrence-free rate for patients with papillary-only disease, and disease-free rate in studies enrolling both papillary CIS tumors (Ta/T1/CIS). I2 was used for assessing heterogeneity. Eleven studies using 9 different therapeutic agents in a total of 909 patients with BCG-unresponsive NMIBC were identified. The resulting outcomes at 3, 6, and 12 months were 44%, 38%, and 25% complete response rate in CIS±Ta/T1 tumors; 73%, 58%, and 48% recurrence-free rate in papillary-only; and 48%, 22%, and 43% disease-free rate in combined Ta/T1/CIS, respectively. Relatively low levels of heterogeneity were observed amongst studies restricted to papillary-only or CIS±Ta/T1 tumors. Future randomized controlled studies are needed and will likely require stratification between papillary-only and CIS±Ta/T1 tumors. Introduction
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.010 | 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 teacher head, 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".