Arcascope uses the circadian clock to optimize cancer therapy, noted CEO Olivia Walch.

Key takeaways:

Arcascope utilizes sleep and circadian rhythm to identify the best time of day for cancer therapy.

The company was one of 14 startups selected for the 2025 CancerX Accelerator cohort.

Arcascope — a circadian health company — is leveraging its combination of AI, mathematical models and wearable devices to assess how a patient’s body changes throughout the day, and determine when cancer therapy will be most effective.

“We’re harnessing how the body changes over the course of the day to do a better job of developing medicine,” Olivia Walch , PhD , the company’s founder and CEO, told Healio. “A lot of cancer therapies are given without consideration of what time of day they will work

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