Scientists at Cardiff University have helped develop a new kind of treatment for some forms of breast cancer that could extend a patient's life by nearly six months.
As we enter Breast Cancer Awareness month, we've been hearing from two sisters who are currently being treated for the disease and who want to to encourage more women to go for life-saving screenings.
The unpleasant effects of chemotherapy are one thing Welsh scientists at the Velindre Cancer Centre in Cardiff have been working on - as part of research into a a new drug for women in the advanced stages of a particular form of breast cancer
Data from around the world suggests the drug TMD1 could add around six months to some patients life expectancy.
Esyllt Carr reports.