LGD-3303
Status
No approved product. No approved labeling. No FDA-approved human product was found; other countries were not verified. Prohibited in sport.
What it is
A selective androgen receptor modulator studied only in animals.
What published research measured
A SARM from the same discovery program as LGD-4033, studied in rodent models of osteoporosis where it increased bone mineral density and lean mass. This entry does not cite any human trial of it, so it has no clinical safety data to show. LGD-4033, which did reach humans, is named in FDA warnings over liver injury and suppression of the body's own testosterone.
Source
Vajda EG et al. 2009 — Pharmacokinetics and pharmacodynamics of LGD-3303 [9-chloro-2-ethyl-1-methyl-3-(2,2,2-trifluoroethyl)-3H-pyrrolo-[3,2… · Broberg MN et al. 2023 — Equine in vivo metabolite profiling of the selective androgen receptor modulator LGD-3303 for doping control · Cutler C et al. 2022 — Identification of equine in vitro metabolites of seven non-steroidal selective androgen receptor modulators for dopin…
Sources
No linked primary source is on file for this entry yet.
Educational use only, never medical advice. No doses.