The researchers note that circadian rhythms – the 24-hour cycles governing biological processes – are known to influence immune cells. Earlier retrospective studies have reported improvements in the efficacy of immunotherapies like Keytruda and Tyvyt when given earlier in the day.
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Cancer immunotherapies may be more effective given earlier in the day
February 5, 2026The researchers note that circadian rhythms – the 24-hour cycles governing biological processes – are known to influence immune cells. Earlier retrospective studies have reported improvements in the efficacy of immunotherapies like Keytruda and Tyvyt when given earlier in the day.