IAAF Global Athletics (© IAAF)
MonteCarloIn response to the press release issued by the United States Anti-Doping Agency (USADA) last night, concerning recent cases for an "undetectable" designer steroid, tetrahydrogestrinone or THG, the IAAF confirms that it has been notified of this investigation by USADA.
The cases are currently under due process and, according to standard procedure, the IAAF will make comments only if B sample analyses confirm the results of positive A samples.
Tetrahydrogestrinone is a chemically related compound of gestrinone, a prohibited substance.
IAAF