Ostarine on doping control

Ostarine (MK 2866, Enobosarm) is an anabolic agent developed by the American pharmaceutical company GTx for the treatment of muscular dystrophy, cachexia and sarcopenia. This selective androgen receptor modulator was developed primarily to prevent loss of muscle tissue and strengthen bones. However, Ostarine has found wide application in sports, because it has effects similar to the effects of anabolic steroids. For this reason, all major selective modulators of SARMS (including Ostarine) were banned by the World Anti-Doping Agency WADA in January 2008, despite the lack of clinical trial results. All main methods of Ostarine detection were introduced by WADA in 2009.

Timing of Ostarine deducing

Ostarine is found in blood of athletes during next 10-12 months, so it is not recommended to take Ostarine for athletes undergoing preliminary doping control.

Cases of detection of Ostarine and other SARMS in professional athletes:

  • In June 2013, professional cyclist Nikita Novikov was suspended for possible violation of the rules of doping control due to positive A-test for Ostarine.
  • In early March 2014 the head coach of Russian national team Valentin Biryukov announced positive doping test of his athlete long jumper Sofya Biryukova, so she had to cancel her trip to the World Cup.
  • In June 2015, 18-year-old Azerbaijani Champion Chaltu Beji, in a run with obstacles, failed on doping test at the European Games in Baku. Traces of Ostarine were found in the athlete's urine, repeated tests confirmed positive test result. Chaltu Beji was disqualified from the competition.
  • In February 2016, the UFC fighter Tim Means was forced to abandon the battle, because of Ostarine in his blood.