A Study on Assessment of STELARA and Tumor Necrosis Factor Alpha Inhibitor Therapies in Participants With Psoriatic Arthritis

Assessment of STELARA® (Ustekinumab) and Tumor Necrosis Factor Alpha Inhibitor Therapies in Patients With Psoriatic Arthritis in Standard Health-Care Practice; A Prospective, Observational Cohort

The purpose of this study is to evaluate treatment retention in psoriatic arthritis participants with STELARA or tumor necrosis factor alpha inhibitor (TNFi) therapies in relation to effectiveness, safety, benefit/risk and to examine clinical response.

This is a prospective, observational, cohort study to collect data on adult participants who have a confirmed diagnosis of psoriatic arthritis (PsA) and are starting either STELARA or a new TNFi as a new therapy in a first, second, or third line of biologic disease-modifying antirheumatic drug (bDMARD) therapy. Approximately 1,400 participants will be enrolled into this study, with 700 participants who are receiving STELARA at study entry and 700 participants who are receiving a new TNFi therapy at study entry. Recruitment into the study will continue for approximately 2 years (with the possibility to extend this period if the patient enrollment target is not reached), with a 3-year follow-up period. For each participant, the follow-up period will continue for 3 years (36 months) after inclusion into the study. Participants will primarily be assessed for parameters of treatment retention, clinical response, effectiveness and safety over an observational period of 36 months.

Inclusion Criteria:

• Must have a confirmed diagnosis of psoriatic arthritis (PsA) as determined by a rheumatologist according to ClASsification criteria for Psoriatic Arthritis (CASPAR) criteria
• Must be starting either STELARA or any new approved tumor necrosis factor alpha inhibitor (TNFi) (including TNFi biosimilar) as a new biologic disease-modifying antirheumatic drug (bDMARD) therapy in a first, second or third line of bDMARD therapy for PsA at the time of enrollment into the observational study or within a maximum 2-month window after the baseline visit
• Must sign a participation agreement/informed consent form (ICF) allowing data collection and source data verification in accordance with local requirements

Exclusion Criteria:

• Participant is starting STELARA or a TNFi therapy as fourth or further line of biologic treatment
• Participant is unwilling or unable to participate in long-term data collection
• Participant has received an investigational drug (including investigational vaccines) or used an invasive investigational medical device within 30 days before the start of the study or the first data collection time point
• Participant is currently enrolled in an interventional study