USADA announced today that John Allan Arte, of Paraná, Brazil, has accepted a one-year sanction for a violation of the UFC® Anti-Doping Policy after testing positive for a prohibited substance.
Arte, 26, tested positive for 3-hydroxy-4-methoxytamoxifen, a metabolite of tamoxifen, as the result of an in-competition urine sample collected at UFC FN Sacramento on July 13, 2019. Tamoxifen is a Specified Substance in the class of Hormone and Metabolic Modulators and is prohibited at all times under the UFC Anti-Doping Policy, which has adopted the World Anti-Doping Agency Prohibited List.
After being notified of his positive test, Arte came forward with evidence of his use of this prohibited substance before entering the UFC Anti-Doping Program.