A phase II multicenter study of aflibercept (AFL) in combination with cisplatin (C) and pemetrexed (P) in patients with previously untreated advanced/metastatic nonsquamous non-small cell lung cancer (NSCLC).
Bibliographic record
Abstract
7541 Background: AFL is a recombinant human fusion protein that acts as a decoy receptor and prevents the interaction of vascular endothelial growth factor (VEGF)-A, VEGF-B, and placental growth factor with their receptors. This study evaluated the efficacy and safety of AFL in combination with first-line chemotherapy of C and P in NSCLC. Methods: This phase II, single arm, open label, multicenter trial in patients with previously untreated, locally advanced, or metastatic NSCLC excluded patients with squamous histology, cavitating lesions, ECOG > 1, uncontrolled hypertension, or brain/CNS metastases. All patients received IV AFL 6 mg/kg, P 500 mg/m2, and C 75mg/m2, every 3 weeks for up to 6 cycles. For those who completed the combined chemotherapy, Q3W administration of AFL was to continue until disease progression, intolerable toxicity, or any other cause for withdrawal. The primary endpoints were objective response rate (ORR) and progression free survival (PFS). Planned sample size was 72 patients. Results: The study was closed prematurely due to 3 confirmed cases of reversible posterior leukoencephalopathy syndrome (RPLS). A total of 42 patients were enrolled. Median age was 61.5 years; 54.8% were male, 85.7% white and 50% ECOG 0. A median of 4 cycles of AFL was administered. The most common treatment-emergent adverse events (TEAEs) of any grade were nausea (69%) and fatigue (67%), with hypertension (36%) as the most common grade 3/4 TEAE. The 3 patients with RPLS were Caucasian women. Two had a history of hypertension and both experienced elevated BP and reduced CrCl. Of the 38 patients evaluable for response, ORR was 26.3% (95% CI, 12.3-40.3%) and median PFS was 5 months (95% CI, 4.3-7.1). Conclusions: The rate of RPLS observed in this study with AFL + C + P was higher than anticipated. A meta-analysis of safety from three large placebo-controlled studies reported no RPLS among 1333 patient treated with AFL + chemotherapy, and none was reported in prior combination studies of AFL + P or AFL + C + docetaxel. Though the study was stopped early, ORR and PFS were in accordance with most historical first-line NSCLC studies.
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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) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".