LONDON (AP) — The European Medicines Agency has recommended authorizing a twice-yearly injectable drug aimed at preventing HIV, which scientists say could help end the virus’ transmission.

In a statement on Friday, the EU drug regulator said its evaluations of lenacapavir, sold as Yeytuo in Europe by Gilead Sciences, showed the drug is “highly effective” and “considered to be of major public health interest.” Once the regulator’s guidance is accepted by the European Commission, the authorization is valid in all 27 EU member countries as well as Iceland, Norway and Liechtenstein.

Last year, studies suggested that lenacapavir, already used to treat people with HIV, was nearly 100% effective in stopping transmission in both women and men.

Winnie Byanyima, executive director of the U.N. AIDS agency, has said the drug “could change the trajectory of the HIV epidemic” if it is made available to everyone who needs it.

In June, the U.S. Food and Drug Administration authorized lenacapavir to prevent HIV. Earlier this month, the World Health Organization recommended countries offer the drug as an additional option to people at risk of the virus.