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Duration of checkpoint inhibitor therapy

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Published: 17.05.17
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Prof Dirk Schadendorf - University of Duisburg-Essen, Essen, Germany

Dr Schadendorf speaks with ecancer at EADO 2017 about objective response as a possible milestone for the administration of checkpoint immunotherapy.

Taking current ipilimumab protocols as an example, he considers how long PD1 antibodies might be administered to achieve maximum clinical benefit.

Based on data from KEYNOTE-001, Dr Schadendorf questions that patients who achieve complete response may be primed, or sensitive, to other immune therapies should they relapse.

In Checkmate 69 and 67, combined ipilumumab and nivolumab resulted in nearly half of patients discontinuing due to toxicity, but there was little difference in PFS and response rate between those completing their course and those ceasing early, leading Dr Schadendorf to consider how long these potentially toxic courses are required for significant benefit.

He goes on to consider the wider trial designs and health-care provider stakes in drug discontinuation.

ecancer's filming has been kindly supported by Amgen through the ECMS Foundation. ecancer is editorially independent and there is no influence over content.

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