Effects of Kisspeptin on Sexual Brain Processing and Penile Tumescence in Men With Hypoactive Sexual Desire Disorder: A Randomized Clinical Trial

What Was Tested

Researchers studied Kisspeptin-10 in this randomized controlled trial publication.

To determine the physiological, behavioral, neural, and hormonal effects of kisspeptin administration in men with HSDD.

Physiological, behavioral, functional magnetic resonance imaging (fMRI), and hormonal analyses were used to investigate the clinical and mechanistic effects of kisspeptin administration in response to visual sexual stimuli (short and long video tasks).

Why It Was Studied

The human physiological sexual response is crucial for reward, satisfaction, and reproduction.

The reproductive neuropeptide kisspeptin offers a putative therapeutic target, owing to emerging understanding of its role in reproductive behavior.

Who Took Part

The age groups tagged for this paper are adults, men only.

Eligible participants were right-handed heterosexual men with HSDD.

How the Study Was Run

In design terms this was a randomized, double-blind, placebo-controlled and crossover study.

Because people in this Kisspeptin-10 study were split into groups at random, differences between the groups are less likely to reflect who happened to join each one.

Neither the participants nor the staff measuring them knew who was on Kisspeptin-10, so expectations could not easily colour the readings.

The comparison arm used a placebo, so changes seen with Kisspeptin-10 could be set against what happens without it.

In the crossover set-up each of the participants took both Kisspeptin-10 and the comparison in turn, acting as their own control.

This double-blind, 2-way crossover, placebo-controlled randomized clinical trial was performed at a single academic research center in the UK.

The trial was conducted between January 11 and September 15, 2021, and data analysis was performed between October and November 2021.

What Was Measured

Topics PubMed links to this paper include Penile Erection, Kisspeptins, Sexual Behavior, Sexual Dysfunctions, Psychological and Brain.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Kisspeptin-10.

Its findings take up roughly 7 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2023 (JAMA network open), a journal based in United States.

More context: the Kisspeptin-10 compound page, all human trials.