ECHELON-1 study looked at using brentuximab vedotin, the antibody that is targeted against CD30 with a MMAE warhead on the back in combination with chemotherapy versus standard ABVD chemotherapy. And that trial originally showed a benefit for progression free survival for the combination with the BV plus AVD. But over time has actually shown an overall survival. So this particular presentation is reporting seven year follow up now for patients as far as overall survival is concerned...
ECHELON-1 study looked at using brentuximab vedotin, the antibody that is targeted against CD30 with a MMAE warhead on the back in combination with chemotherapy versus standard ABVD chemotherapy. And that trial originally showed a benefit for progression free survival for the combination with the BV plus AVD. But over time has actually shown an overall survival. So this particular presentation is reporting seven year follow up now for patients as far as overall survival is concerned. And notably overall survival has been very difficult to prove and show in Hodgkin lymphoma due to multiple other therapies that one can give. So showing that using a novel agent such as brentuximab vedotin with chemotherapy in the front line actually improves overall survival of patients overall. That is actually quite substantial and significant.