Free algorithm vs. $4,000 gene test: which do doctors choose?

NCT ID NCT04131933

Completed Knowledge-focused Sponsor: Ottawa Hospital Research Institute Source: ClinicalTrials.gov ↗

First seen Jan 11, 2026 · Last updated May 09, 2026 · Updated 19 times

Summary

This study looked at whether giving doctors a free online risk score (PREDICT 2.1) changes how often they order an expensive gene test (Oncotype DX) for early-stage breast cancer. Over 600 patients took part. The goal was to see if the free tool could replace the costly test and speed up treatment decisions.

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Contacts and locations

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Locations

Grand River Hospital

Kitchener, Ontario, N2G 1G3, Canada
Kingston Health Sciences Centre

Kingston, Ontario, K7L 2V7, Canada
Markham Stouffville Hospital

Markham, Ontario, L3P 7P3, Canada
Ottawa Hospital Research Institute

Ottawa, Ontario, Canada
Thunder Bay Regional Health Sciences Centre

Thunder Bay, Ontario, P7B 6V4, Canada
Windsor Regional Hospital

Windsor, Ontario, N8W 1L9, Canada

Conditions

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BREAST CANCER