Abstract
BMJ Editorial
Campaigners are calling on policy makers at next week's sixth World Trade Organization ministerial conference in Hong Kong to make trade fairer for and improve the lives and health of the world's poorest people. This broad and important aim may dominate the headlines, but ministers will also be discussing technical issues surrounding international patenting laws. One issue with implications for the development of medical products is the tension between international patenting laws and benefit sharing requirements, which may threaten agreements on protecting biodiversity. If the biodiversity door shuts because of protests in developing countries, pharmaceutical research will be seriously hampered.