World Rugby is considering "rugby-specific" eligibility rules for transgender players, differing from the International Olympic Committee policy.
Players transitioning from men to women are currently required to suppress their testosterone levels, in line with IOC limits, to play in women's games.
But critics say unfair imbalances of strength and power remain.
World Rugby wants to explore a "rugby-specific framework, prioritising welfare, inclusion and fairness".
World Rugby chair Sir Bill Beaumont. Photo: Photosport
"We are committed to delivering a fit-for-purpose policy in the modern sporting and societal landscape, balancing inclusivity, while promoting fairness and welfare," said chair Sir Bill Beaumont.
His statement follows a two-day workshop in London which brought together experts in performance, science, medicine, risk, law and ethics, former and current players and rugby officials to discuss the matter.
Their recommendations, including a call for more research into injury risk, ethical considerations and performance, will be taken on by a working group.
-BBC