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AHOD1331 showed that replacing bleomycin with the antibody-drug conjugate brentuximab vedotin in the chemotherapy given to children and teenagers with advanced Hodgkin lymphoma cut relapses by more than half without extra side effects, and it became the new standard for high-risk disease.
AHOD1331 was an open-label Children's Oncology Group phase 3 trial at 153 institutions that randomised 600 patients (587 eligible) aged 2 to 21 with previously untreated high-risk classical Hodgkin lymphoma to five 21-day cycles of brentuximab vedotin with doxorubicin, vincristine, etoposide, prednisone and cyclophosphamide, or to the standard paediatric ABVE-PC regimen. Involved-site radiotherapy was given after cycle five to slow-responding lesions on central PET review and to large mediastinal disease. The primary endpoint was event-free survival.
At a median follow-up of 42.1 months three-year event-free survival was 92.1 percent with brentuximab vedotin against 82.5 percent with standard care (hazard ratio 0.41), with similar toxicity and similar use of radiotherapy (53.4 against 56.8 percent); three-year overall survival was 99.3 and 98.5 percent. Brentuximab vedotin was approved in the United States in November 2022 for paediatric high-risk classical Hodgkin lymphoma on this trial. The corpus's Hodgkin lymphoma page cites AHOD1331 for ABVE-PC with brentuximab and PET-guided radiotherapy omission.
Numbers are from the trial as recorded here; see the source links in the table below. This is orientation, not medical advice: ask your team how closely the trial population matches you.
600 enrolled.
95% CI 88.4 to 94.7; 587 eligible of 600 randomised; median follow-up 42.1 months · 95% CI 77.4 to 86.5
Source95% CI 97.3 to 99.8 · 95% CI 96.0 to 99.4
Source| Endpoint | Arm | n | Value | HR (95% CI) | p | Source |
|---|---|---|---|---|---|---|
| Event-free survival at 3 yearsprimary | Brentuximab vedotin + doxorubicin, vincristine, etoposide, prednisone, cyclophosphamide | - | 92.1% | 0.41 (0.25 to 0.67) | <0.001 | link |
| ABVE-PC (standard care) | - | 82.5% | ||||
| Overall survival at 3 years | Brentuximab vedotin + AVEPC | - | 99.3% | - | - | link |
| ABVE-PC (standard care) | - | 98.5% | ||||
| Patients given involved-site radiotherapy | Brentuximab vedotin + AVEPC | - | 53.4% | - | - | link |
| ABVE-PC (standard care) | - | 56.8% |
The full inclusion and exclusion criteria are on the registry record. Read 2026-10-07. Recruiting overall does not mean a particular site is open; ask the study team.
ClinicalTrials.gov data courtesy of the US National Library of Medicine.
Shares Childhood cancers (all types), Prednisone, Vincristine, Etoposide and the tag soc-trials.
Shares Childhood cancers (all types), Children's Oncology Group (COG), Vincristine, Etoposide and the tag soc-trials.
Shares Childhood cancers (all types), Children's Oncology Group (COG), Vincristine, Etoposide and the tag soc-trials.
Shares Childhood cancers (all types), Children's Oncology Group (COG), Vincristine, Etoposide and the tag soc-trials.
Shares Bleomycin, Childhood cancers (all types), Children's Oncology Group (COG), Etoposide and the tag soc-trials.
Shares Childhood cancers (all types), Children's Oncology Group (COG), Etoposide, Doxorubicin and the tag soc-trials.
Shares Childhood cancers (all types), Children's Oncology Group (COG), Vincristine, Cyclophosphamide and the tag soc-trials.
Shares Childhood cancers (all types), Children's Oncology Group (COG), Vincristine, Etoposide and the tag soc-trials.
Every source this page cites, grouped by who published it. Grouping is read from the web address, not assigned by hand.
A source that has moved or gone is reported by the weekly link check. /audit/