Two samples collected on October 15 and 16 (stage 12 in Cesenatico and stage 13 to Monselice) showed the Selective Androgen Receptor Modulator (SARM) Enobosarm, otherwise known as ostarine.
The Italian 27-year-old "has the right to request and attend" analyses of B samples, a UCI statement read. Spreafico has been provisionally suspended and has left the race, where he lay 127th overall after Thursday's stage 18.
Enobosarm is an investigational SARM developed to treat osteoporosis and muscle wasting conditions. SARMs, including Enobosarm, have been on WADA's Prohibited List since 2008 under the 'other anabolic agents' section.
The drug is claimed to produce effects similar to anabolic steroids, including losing weight and building muscle. Former riders Nikita Novikov and Kayle Leogrande are among athletes to have tested positive for ostarine in the past.
More to come!