Final analysis of Australasian Leukaemia & Lymphoma Group NHL29: A phase II study of ibrutinib, rituximab and mini‐CHOP in very elderly patients with newly diagnosed DLBCL
Bibliographic record
Abstract
Introduction: The optimal treatment for very elderly patients (pts) with newly diagnosed Diffuse Large B Cell Lymphoma (DLBCL) remains controversial. R-mini-CHOP is an established standard of care in elderly patients with DLBCL, with a 2 yr OS of 59% and PFS of 47% (Peyrade et al., Lancet Oncol 2011). We present our final data from this prospective Phase II study of ibrutinib, rituximab and mini-CHOP in pts ≥75 yrs with newly diagnosed DLBCL. Methods: Pts received six 21-day cycles of ibrutinib 560 mg daily and R-mini-CHOP (Rituximab 375 mg/m2, cyclophosphamide 400 mg/m2, doxorubicin 25 mg/m2, vincristine 1 mg on day 1 & prednisone 40 mg/m2 or 100 mg/d × 5) followed by an additional two 21 day cycles of rituximab + ibrutinib (or high dose methotrexate for CNS prophylaxis). Primary endpoints were deliverability and 2 year overall survival (OS). Sample size calculations were made using a one-sample two-sided approach to detect a 15% improvement on the fixed Peyrade reference OS (59%) and PFS (47%) rates. Results: Eighty pts were recruited from Nov 2015 to Nov 2018. One died prior to receiving treatment and is not included in the analysis. Median age was 82 yrs (75–95); 81% stage III/IV; 54% age adjusted IPI 2–3. With a median follow-up of 35.5 months (m) (0.2, 71.7) (data cut 6 September 2022), there was a non-significant trend towards improvement in 2-year OS of 68% (55.6%, 77.4%) compared to the reference Peyrade cohort of 59% (p = 0.11). Median OS was 72 m (95% CI 35 m to not reached (NR)). Median 2-year PFS of 60.0% (47.7%, 70.3%) was significantly improved compared to the reference cohort of 47% (p = 0.03), with a median PFS of 40 m (95% CI 20.41, NR). Overall response assessment assessed by investigators at the end of treatment was 76% (61/80 pts), with a complete response rate of 70% (56/80 pts). All 6 cycles of R-mini-CHOP were completed in 63/79 pts (80%) and 57/79 pts (71%) completed all 8 cycles of therapy. The median Average Relative Total Dose and Average Relative Dose Intensity for the entire regimen was 97% (IQR 82, 100; 88, 100). 34/79 pts (43%) have died, 17 due to progressive disease and 5 were treatment-related. 67% pts experienced an SAE. Most common AEs were infections and diarrhoea (majority grade 1–2). In the EORTC QLQ-C30 there was an improvement in functional and symptom scales and on the EQ-5D-5L survey, there was a significant improvement in the median health state classification score and median visual analogue scale thermometer score over time. Encore Abstract - previously submitted to EHA 2023 The research was funded by: Janssen-Cilag Pty Ltd. Keywords: Aggressive B-cell non-Hodgkin lymphoma, Combination Therapies Conflicts of interests pertinent to the abstract. E. Verner Research funding: Janssen-Cilag Pty Ltd. E. Hawkes Consultant or advisory role: Janssen-Cilag Pty Ltd. T. Cochrane Consultant or advisory role: Janssen Cilag Pty Ltd. C. Y. Cheah Consultant or advisory role: Janssen-Cilag Pty Ltd. Honoraria: Janssen-Cilag Pty Ltd. M. K. Gandhi Research funding: Janssen-Cilag Pty Ltd. B. E. Butcher Other remuneration: Janssen Cilag Pty Ltd. J. Trotman Research funding: Janssen-Cilag Pty Ltd.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.001 |
| 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".