The 30-year-old tested positive for a human growth hormone, GH-Releasing Peptides (GHRPs), in an out-of-competition test on April 27, with news of the positive test being announced just two days ahead of the start of the Giro d’Italia.
Pirazzi has now received a four-year suspension, backdated to the date of the positive test, meaning that he will be out of action until May 3, 2021.
Nicola Ruffoni also tested positive for the same banned substance in a test a day before Pirazzi, with his B-sample also returning positive, and both rider being sacked by their Bardiani-CSF teams.
However the UCI is yet to announce a sanction for Ruffoni, with the rider remaining provisionally suspended for the time being.
After Pirazzi and Ruffoni tested positive before the Giro, André Cardoso and Samuel Sanchez delivered positive tests before the Tour de France and Vuelta a España respectively. Like Ruffoni, both Cardoso and Sanchez are also currently provisionally suspended.