Effects of Tildrakizumab on Epigenetic Age

Design: Single-center open-label clinical trial. Objective: Evaluate if tildrakizumab reverses peripheral blood leukocyte DNA methylation (epigenetic aging) observed in chronic psoriasis. Number of subjects: 30. Intervention group: 20 (10 men, 10 women) with moderate-to-severe psoriasis. Control group: 10 (5 men, 5 women) with other skin diagnosis. Population: \>35-year-old subjects will be recruited from Brown Dermatology clinics. Biological samples: Blood samples will be collected for all subjects at screening, and weeks 16, 28 and 52. Urine pregnancy tests will be performed for females of childbearing potential at weeks 4, 16, and 28. Serum pregnancy test and QuantiFERON test for tuberculosis will be performed at screening visit. Safety parameters: Adverse events, and screening, week 16, week 28 blood samples laboratory results. Females of childbearing potential: serum pregnancy test at screening visit, urine pregnancy test at weeks 4, 16, and 28. Data Safety Monitoring Board will review data and laboratory flags quarterly. Study center: Rhode Island Hospital, Providence, RI, USA. Trial Duration: One year.