VALIANT: A Randomized, Multicenter, Double-Blind, Placebo (PBO)-Controlled, Phase 3 Trial of Pegcetacoplan for Patients with Native or Post-transplant Recurrent Glomerulopathy (C3G) or Primary Immune Complex Membranoproliferative Glomerulonephritis (IC-MPGN)
Bibliographic record
Abstract
Background: VALIANT (NCT05067127) is a double-blind, PBO-controlled trial investigating the efficacy/safety of pegcetacoplan (PEG), a C3/C3b inhibitor, in adolescents (≥12 yrs) and adults with native or post-transplant recurrent C3G or primary IC-MPGN. Methods: Patients (pts) received PEG (SC infusion 2x/wk) or PBO (randomized 1:1) for 26 wks. The primary endpoint was log-transformed ratio of uPCR at wk 26 vs. baseline to measure proteinuria reduction vs. PBO. Results: 124 pts were randomized to PEG (n=63) or PBO (n=61). The primary endpoint was met:68.3% (95% CI –76.3, –57.7) uPCR reduction in PEG vs. PBO arms at wk 26 (p<0.0001; Table). Results were consistent across all subgroups (disease type, age, and transplant status). Robust reductions in C3c staining and clinically meaningful eGFR stabilization were observed with PEG vs. PBO (Table). Treatment-emergent AE frequency and severity were similar between arms. None of the 4 serious infections (3 PEG; 1 PBO) were attributed to encapsulated bacteria. 1 death occurred in the PEG arm due to COVID-19 pneumonia (unrelated to PEG). Conclusion: PEG, a C3/C3b inhibitor, is the first therapy to achieve significant and clinically meaningful reductions in proteinuria (68.3% vs. PBO) and C3c staining and eGFR stabilization, compared with PBO in pts ≥12 yrs with C3G or primary IC-MPGN and was well tolerated.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.004 | 0.002 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".