Longitudinal Differences By Treatment Arm in Health-Related Quality of Life Among High Risk Pediatric Hodgkin's Lymphoma Patients Treated on the Children's Oncology Group Ahod 1331 Study
Bibliographic record
Abstract
Introduction: Brentuximab vendotin (BV) with AVE-PC demonstrated superior efficacy to ABVE-PC for pediatric patients with high-risk HL in the AHOD 1331 trial. However, there are no data regarding the impact on health-related quality of life (HRQoL) with the addition of BV into the treatment of pediatric HL. Methods: Eligibility for AHOD 1331 (NCT 02166463) included previously untreated HL with high risk disease, defined as stage IIB +bulk, IIIB, IVA, or IVB classic HL. Participants were randomized to either BV-AVE-PC (“BV” arm) or ABVE-PC (standard arm). Among the first 309 participants enrolled in a prespecified longitudinal patient-reported outcomes sub study, 280 were age 11+ years and eligible to self-report HRQoL using the seven-item Child Health Ratings Inventories (CHRIs)-Global scale. HRQoL was assessed prior to treatment (T1), at cycle 2 (T2), at cycle 5 (T3), and at the end of treatment (T4). A clinically meaningful increase in HRQoL was considered a change of 7 points in the CHRIs-Global score (CHRIs), translating to a 1/3 standard deviation. Multivariable linear regression estimated the association between demographic/clinical variables and HRQoL at T1. Linear mixed models estimated the change in HRQoL relative to T1 with a time*treatment arm interaction to estimate differences in the change in HRQoL across treatment arm. This model was adjusted for age, sex, race/ethnicity, stage, large mediastinal adenopathy (LMA), B-symptoms at diagnosis, and a time-varying covariate for involved site radiation prior to T4. Results: Participant and disease characteristics were balanced by treatment arm; mean age at enrollment was 15.6 years (SD= 1.9), 52% were female, 60.4% had LMA, and 58% were stage IV. 93% of participants completed the CHRIs at T1, 92% at T2, 89% at T3, and 74% at T4. At T1, female sex (mean (SD) 64.1 (20.2) vs 71.3 (23.3) p=0.004) and fever (60.8 (23.0) vs. 71.9 (20.4) p=0.024) were associated with worse HRQoL. At each time point after pre-treatment (T1), HRQoL was higher, on average, in the BV arm compared to the standard arm (Figure 1). By T2, participants in the BV arm experienced a statistically and clinically significant increase in HRQoL compared to pre-treatment (T1) (Table 1; β=7.3 95%CI 3.2, 11.4; p≤0.001), which was greater than the change experienced in the standard arm (difference in change β=5.1 95%CI -0.2, 10.3; p=0.057). At T3 and T4 the BV arm continued to experience statistically significant improvements in HRQoL relative to T1 (T3 β=5.3 95%CI 0.8, 9.9; p=0.022; T4 β=14.6 95%CI 10.3, 18.9; p≤0.001). The standard arm did not experience a statistically or clinically significant increase in HRQoL from T1 until T4 (β=9.3 95%CI 4.7, 11.5; p<0.001). Conclusion: Patients with high-risk pediatric HL treated with BV-AVE-PC experienced more rapid and sustained improvement in HRQoL compared to patients treated with ABVE-PC. These data also demonstrate the feasibility and importance of incorporating HRQoL assessments into pediatric clinical trials.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 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".