Key Takeaways

Cancer immunotherapies might work better if given earlier in the day

Lung cancer patients had better survival if they got IV treatments before 3 p.m.

They also had longer remission

TUESDAY, Dec. 9, 2025 (HealthDay News) — Cancer survival might depend on what time of day you get your treatment, a new study says.

Lung cancer patients who received IV immunotherapy doses earlier in the day tended to live longer, according to results published online Dec. 8 in the journal Cancer .

Getting immunotherapy drugs before 3 p.m. was associated with a 52% lower risk of cancer progression and a 63% lower risk of death, the study found.

This could be an inexpensive way to extend survival for cancer patients, said senior researcher Dr. Yongchang Zhang , an associate professor a

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