Amag’s Female Sexual Desire Disorder Drug
FDA has approved an Amag Pharmaceuticals NDA for Vyleesi (bremelanotide) to treat acquired, generalized hypoactive sexual desire disorder (HSDD) in premenopausal women. An FDA news release says that HSDD is characterized by low sexual desire that causes marked distress or interpersonal difficulty and is not due to a co-existing medical or psychiatric condition, problems within the relationship or the effects of a medication or other drug substance.
Vyleesi activates melanocortin receptors, but the mechanism by which it improves sexual desire and related distress is unknown, FDA says. “Patients inject Vyleesi under the skin of the abdomen or thigh at least 45 minutes before anticipated sexual activity and may decide the optimal time to use Vyleesi based on how they experience the duration of benefit and any side effects, such as nausea,” it says.
Approval was based on data from two 24-week, randomized, double-blind, placebo-controlled trials in 1,247 premenopausal women with acquired, generalized HSDD. “In these trials, about 25% of patients treated with Vyleesi had an increase of 1.2 or more in their sexual desire score (scored on a range of 1.2 to 6.0, with higher scores indicating greater sexual desire) compared to about 17% of those who took a placebo,” FDA says. Additionally, about 35% of the patients treated with Vyleesi had a decrease of one or more in their distress score, it says.