Clinical Outcomes in the Nephrotic Syndrome Study Network: Disease Burden and Treatment Patterns over Time
Bibliographic record
Abstract
Introduction: Among patients with proteinuric glomerular diseases, there is a paucity of high-quality evidence and substantial variation in practice patterns among nephrologists. Our objective was to describe the clinical presentation, treatment patterns, and outcomes of patients with biopsy-proven glomerular diseases in a contemporary, well-phenotyped, diverse cohort. Methods: The Nephrotic Syndrome Study Network (NEPTUNE) is a prospective observational cohort study of children and adults with proteinuric glomerular diseases enrolled at 23 centers in the USA and Canada since 2009. We included participants who underwent their first clinically indicated kidney biopsy demonstrating minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), or membranous nephropathy (MN). We described demographic and clinical characteristics at the time of biopsy and baseline visits. We analyzed treatment patterns for participants with and without immunosuppressive therapy (IST) use prior to biopsy. We described clinical outcomes including complete remission (CR) and proteinuria, stratified by IST use, at biopsy and up to 36 months' follow-up. Results: Among 507 NEPTUNE participants who underwent biopsy, 203 were classified as having FSGS, 193 as having MCD, and 111 as having MN. Corticosteroid exposure was high overall and highest among MCD patients. Substantial heterogeneity in treatment choices was evident, particularly among those initiating second-line therapy. The rate of kidney failure was highest, and CR rates were lowest, among patients with FSGS, who experienced ∼50% cumulative probability of first remission at 36 months after biopsy. At 36 months, 49.5% of all patients were not in CR; 19.3% were not in CR despite being on IST. Additionally, 20.2% of patients had proteinuria >1.5 g/g; among those on IST at their 36-month visit, 26.3% had UPCR >1.5 g/g. Conclusion: A substantial proportion of patients were not in remission and had persistent proteinuria despite being on IST 3 years after their first biopsy.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".