RAD140 is an investigational selective androgen receptor modulator (SARM) for the treatment of conditions such as muscle wasting and breast cancer.

Androgen receptor:7 nM

RAD140 demonstrates excellent affinity for the androgen receptor (Ki = 7 nM) as well as good selectivity over other steroid hormone nuclear receptors.

in vivo: The stability of RAD140 is high (t1/2 > 2 h) in incubations with rat, monkey, and human microsomes, and it also had good bioavailability in rats and monkeys. RAD140 is also neuroprotective using the rat kainate lesion model. RAD140 is shown to exhibit peripheral tissue-specific androgen action that largely spared prostate, neural efficacy by activation of androgenic gene regulation effects, and neuroprotection of hippocampal neurons against cell death caused by systemic administration of the excitotoxin kainate.