Neutropenia analysis of venetoclax monotherapy in patients with relapsed or refractory chronic lymphocytic leukemia: Pooled data from VENICE-I and -II Phase IIIb trials.
Bibliographic record
Abstract
e20011 Background: Neutropenia is a common hematologic Grade (Gr) 3+ adverse event (AE) recorded in patients with chronic lymphocytic leukemia (CLL) receiving venetoclax (VEN). In this analysis, we evaluated fixed duration VEN monotherapy given to patients with relapsed or refractory (R/R) CLL with and without pre-existing Gr3+ neutropenia. Methods: This post-hoc analysis pooled data from patients in the ongoing Phase 3b trials VENICE-I and VENICE-II with R/R CLL who had received ≥1 dose of VEN monotherapy (ramp-up to 400 mg QD). Gr4 hematologic AEs and Gr3+ neutropenia ( < 1000 cells/mm3) with infection or fever were managed using dose interruption/reduction. Granulocyte colony stimulating factor (G-CSF) was used in Gr3+ neutropenia. Results: At data cutoff (June 30, 2019), 44/468 (9%) patients had Gr3+ neutropenia at baseline (BL; Gr3+ neutropenia group), 80% of whom received G-CSF during the study vs 38% of those with < Gr3 neutropenia at BL ( < Gr3 neutropenia group). Median on-study duration for VEN was 20.2 months (range: 0.1–36.1). Median number of prior CLL therapies was 2 for both groups (range: 1–10). Serious infections were experienced by 10/44 (23%) and 69/424 (16%) of patients in the Gr3+ and < Gr3 neutropenia groups, respectively. The most common AEs leading to discontinuation overall were second primary malignancies (13/468; 3%). 5/468 (1%) patients in the total population discontinued due to neutropenia/febrile neutropenia. One case of Gr5 infection with concomitant Gr3 neutropenia was reported in the < Gr3 neutropenia group post-VEN discontinuation. See Table. Conclusions: In this large post-hoc analysis, discontinuation due to neutropenia was rare (1%) in the overall population and accounted for 3/11 AE discontinuations in the Gr3+ neutropenia group; 10 patients had a serious infection. Patients with pre-existing neutropenia can be managed on VEN, though concurrent use of G-CSF is likely to be required. Additional data to follow. Clinical trial information: NCT02756611; NCT02980731 . [Table: see text]
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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 | 0.014 | 0.007 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.003 | 0.006 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 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".