Cancer Immunotherapy: When To Stop Treatment Remains Unanswered Question

Long-term or open-ended treatment with PD-1/PD-L1 inhibitors is a burden for patients and the healthcare system and does not fit the biological paradigm of cancer immunotherapies, experts say; however, challenges to studying shorter durations include fears of undertreatment and patient objections to stopping a therapy that appears to be working.

Cancer cells

More studies are needed on the optimal duration of therapy with immuno-oncology agents such as PD-1/PD-L1 inhibitors, industry representatives and academic researchers said at a recent US workshop on immunotherapy combination treatment.

There is growing evidence that patients may not need to be treated with immunotherapies indefinitely, or even for as long...

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