What is The Sex Factor?

What is The Sex Factor?

The Sex Factor is a campaign to reinvent medicine based on biological sex

Co-Founded  by Miriam Kenrick and Sarah Sowerby, both with longstanding careers in the pharmaceutical industry, our invitation TO YOU is to be curious enough to look at medicine through the lens of biological sex.

We know that extraordinary people join this innovative industry to make their positive difference. Over our careers we have seen whole areas of medicine transformed, from HIV to cancer, from immunological disorders to rare diseases, and most recently obesity and metabolic diseases.

Our White Paper, published in July 2026, ‘The Sex Factor: Precision Medicine’s Missing Variable’ is predominantly written for pharma and life sciences, with practical recommendations for changemakers and leaders, specific to medicines and medical devices.

But this challenge is too big for any one sector, or organisation, to solve alone. Our vision is to galvanise stakeholders across EVERY sector, including the media, who can shine a light on this important opportunity to reinvent medicine based on biological sex and lay the right foundations for precision medicine.

Together, we can all leave health and medicine in a better state for future generations.

That’s why our White Paper explores:

  • Why medicine has overlooked biological sex
  • The science behind our different operating systems
  • Why current approaches miss what matters
  • Case studies from cardiology, oncology and gastroenterology
  • Four practical actions to drive change now
"I have been seeing sex differences in my Inflammatory Bowel Disease patients for years and been exploring the reasons why. It felt hard to make a real impact doing this alone, but now we are coming together across different specialities with the help of 'The Sex Factor' and this excellent white paper I feel optimistic that we can drive the changes needed for everyone's health."
Dr Miriam WiestlerGastroenterologist at Hannover Medical School, Germany