Nigel Amos, a Botswana Olympic medallist, has been provisionally suspended with immediate effect after tested positive for Metabolites of GW1516, according to a press release issued by the Athletics Integrity Unit (AIU).
According to the Athletics Integrity Unit, the 28-year-old mid-distance runner provided a sample on June 4 that was found to contain GW1516 (an experimental drug that can modify the body’s metabolism but has been deemed too dangerous for human use).
On July 20, Amos was scheduled to compete in the 800m heats of the World Championships in Eugene, Oregon. He won silver at the 2012 Olympics, becoming Botswana’s first medalist.
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The AIU stated, “The athlete was notified of the adverse analytical finding and his mandatory provisional suspension this afternoon in Eugene.”
GW1516 was created to help build endurance and burn fat, but it was discovered to cause cancer in rodent tests. Anti-doping organisations have warned athletes against using it.Athletes have been warned not to use it for safety reasons by anti-doping organisations.
Previously, the drug was discovered in samples provided by professional cyclists and Olympic race walker Elena Lashmanova. The Russian received a two-year ban and was later stripped of the gold medal she won in the 20-kilometer run at the 2012 Olympics for another doping offence.
The suspension comes ahead of the World Championships next week. According to the press release, AIU collected the sample from Amos during an out-of-competition test on June 4, 2022, reports Xinhua.
Amos, 28, won men’s 800m silver at the 2012 London Olympic Games, which was Botswana’s first Olympic medal.GW1516, classified as S4 substances hormone and metabolic modulators in WADA’s Prohibited List, could be used to enhance endurance.