3 EFFICACY
3.1 Efficacy Endpoints
While HSDD has been recognized in the medical literature for 40 years, the development, validation and acceptance of survey instruments necessary for assessment of HSDD symptoms has occurred more recently. Endpoints assessing sexual function, sexual distress, sexual desire, sexual activity and overall patient benefit are now in place and permit regulatory evaluation of the efficacy of drug candidates intended to treat HSDD. A quick reference chart including important characteristics of each instrument is provided in Appendix G for ease of reference during review of this briefing document.