Patient-reported quality of life (QOL) following CTL019 in pediatric and young adult patients (pts) with relapsed/refractory (r/r) b-cell acute lymphoblastic leukemia (B-ALL).
Bibliographic record
Abstract
10523 Background: The global ELIANA trial (NCT02435849) evaluates the efficacy and safety of CTL019, a single infusion of genetically modified autologous chimeric antigen receptor–expressing T cells targeting CD19+ cells in pediatric and young adult r/r B-ALL pts. Analyses show a complete response rate of 82% with or without complete blood count recovery ≤ 3 months. A serious adverse event rate of 71% was observed in ≤ 8 weeks of infusion, decreasing to 17% at > 8 weeks (Grupp S, et al. Blood. 2016;128(22) [abstract 221].). This analysis further evaluates the clinical benefit of CTL019. QOL was assessed before and after CTL019 infusion. Methods: Infused pts were 3-23 y/o with CD19+ B-ALL who were chemo refractory, relapsed after allogeneic stem cell transplant (SCT), or otherwise ineligible for SCT. Pts ≥ 8 y completed the Pediatric Quality of Life Inventory (PedsQL) and EuroQol EQ-5D at baseline and following CTL019 infusion. Minimal clinically important differences are estimated to be 4.4 and 7 to 10 for PedsQL and EQ-5D, respectively. Results: 62 of 81 enrolled pts were infused; 56% had relapsed after SCT with median of 3 prior therapies. At interim analysis, 50 pts were treated ≥ 3 months prior to data cutoff and eligible for primary efficacy analysis. A total of 39 pts were ≥ 8 y. Mean PedsQL total and EQ-5D VAS scores, respectively, were 58.4 and 69.4 at baseline. Mean changes from baseline for the PedsQL total and EQ VAS scores, respectively, were 13.9 and 13.7 at month 3 and 12.8 and 10.9 at month 6, supporting clinically meaningful improvements in QOL. Similar trends were observed with each PedsQL subscale. With EQ-5D, the proportions of pts reporting problems with mobility, self-care, usual activities, anxiety/depression, or pain/discomfort were notably decreased at months 3 and 6 compared with baseline. Conclusions: Clinically meaningful improvements in QOL were observed at 3 and 6 months after CTL019 therapy in pediatric and young adult r/r B-ALL pts, including fewer problems in each EQ-5D domain. These results suggest improved QOL after this one-time immunocellular therapy beyond the period of acute toxicities. Clinical trial information: NCT02435849.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".