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Every dated change on the records linked to ALK-negative anaplastic large cell lymphoma, newest first: approvals and regulatory steps on its medicines, trials that reported, guideline versions, milestones, and when this page itself was checked. Dates come from the records; none is inferred. Orientation, not medical advice.
Brentuximab vedotin with cyclophosphamide, doxorubicin and prednisone, the same regimen as for ALK-positive disease and on the same trial: in ECHELON-2, five-year progression-free survival was 51.4 per cent against 43.0 with chemotherapy alone and overall survival 70.1 against 61.0. Consolidating a first remission with high-dose therapy and an autologous stem cell transplant is standard practice here, unlike in ALK-positive disease, and it rests on a single-arm study and registry comparisons rather than on a randomised trial; a patient is entitled to be told that. The regimens are on the peripheral T-cell lymphoma page.
CD30 and ALK immunohistochemistry on the biopsy. The diagnosis is partly a negative one: uniform strong CD30 with an anaplastic appearance and no ALK, in a lymphoma that is not confined to the skin and is not associated with a breast implant. Those two exclusions matter because both of them are treated very differently. Testing for DUSP22 and TP63 rearrangements is done where it is available, with the caution that WHO-HAEM5 does not regard the resulting groups as established subtypes.
WHO-HAEM5 states that there are not yet enough data to decide whether the genetic contexts are prognostic markers or molecular subtypes, and that the favourable outcome first reported for DUSP22 rearrangement has not been confirmed by more recent studies.