Gene test helps many breast cancer patients avoid chemotherapy

https://www.news-medical.net/news/20260529/Gene-test-helps-many-breast-cancer-patients-avoid-chemotherapy.aspx Many people with breast cancer can safely avoid chemotherapy with the use of a gene test, potentially sparing them unnecessary side effects without increasing the risk of the cancer returning, a large international clinical trial led by UCL has found. The OPTIMA trial (Optimal Personalised Treatment of early breast cancer using Multi-parameter Analysis) was designed to reduce the use of unnecessary chemotherapy for people with newly diagnosed breast cancer. It followed more than 4,400 patients across the UK, Norway, Sweden, Australia, New Zealand and Thailand.