Elucidating Shared Mechanisms Contributing to Non-Alcoholic Fatty Liver Disease (NAFLD) and Psoriatic Arthritis (PsA) Disease Severity With Guselkumab Therapy
University of California, San Diego
Summary
While many studies examine Nonalcoholic fatty liver disease (NAFLD), little is known about its progression to high-risk nonalcoholic steatohepatitis (NASH) in PsA patients. Shared disease mechanisms may explain the increased severity in PsA. This study involves two visits from PsA patients with NAFLD and active disease signs (e.g., swollen joint, enthesitis, or psoriatic plaque). It aims to assess the impact of biological therapies on liver disorders, joints, and skin in PsA patients.
Description
Nonalcoholic fatty liver disease (NAFLD), ranging from benign steatosis to severe nonalcoholic steatohepatitis (NASH), is increasingly common and linked to cirrhosis. Patients with psoriatic arthritis (PsA) are at higher risk for NAFLD and NASH, partly due to methotrexate (MTX) use, which is associated with hepatotoxicity. Key cytokines involved in PsA, such as TNF, IL-17, and IL-23, may also contribute to NAFLD progression. The proposed study aims to explore shared pathogenic pathways in NAFLD and PsA by evaluating the role of IL-17/23 through imaging, metabolomics, and synovial biopsies. Ul…
Eligibility
- Age range
- Not specified
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: 1. Adults with diagnosis of PsA fulfilling the classification for PsA (CASPAR) criteria. 2. Must have: 1 or more swollen joint(s) and/or one or more active sites of enthesitis 3\. AND/OR 1 or more psoriatic plaques 4\. No changes in the regular medication regimen within the last three months, and no use of systemic and/or chronic steroids within 8 weeks leading up to the study. 5\. Overweight or obese by BMI ≥ 25.0 kg/m2 or ≥ 23.0 for Asian participants 6\. Patients are starting Guselkumab therapy for PsA as indicated by primary rheumatologist 7\. Elevated liver fat…
Interventions
- DrugGuselkumab
This is a longitudinal study consisting of a two-time visit by psoriatic arthritis patients. The aim of the study is to determine the effect of biological therapies in liver disorders in patients with psoriatic arthritis.
Location
- University of California, San DiegoSan Diego, California