Christchurch

Researchers are evaluating the effectiveness of icotrokinra (JNJ-77242113) compared to a placebo in adults with active psoriatic arthritis (PsA). This study includes both participants who have previously used biologic treatments and those who have not. The goal is to assess how well the drug reduces the signs and symptoms of PsA by the 16th week of treatment. This is a Phase 3, multicenter, randomized, double-blind clinical trial designed to provide reliable evidence on the drug's impact on this condition. Participants will receive either icotrokinra or a placebo. The treatments will be administered according to the study protocol, but specific dosing details are not provided. Participants will be monitored over 16 weeks to evaluate their response to the treatment, focusing on the American College of Rheumatology (ACR) 20 response, which measures improvement in disease activity. The study compares the active drug against placebo to determine its efficacy and safety in this patient group. During the study, participants will undergo assessments to monitor their psoriatic arthritis symptoms, including joint swelling and tenderness, as well as blood tests to measure inflammation markers like C-reactive protein. Female participants who can become pregnant will have pregnancy tests before and during the study to ensure safety. Researchers will collect data on disease activity and safety throughout the study period to understand the treatment's effects. Total participation time and additional follow-up details are not specified.

This research aims to understand the genetic factors that contribute to the risk of giant cell arteritis (GCA) and polymyalgia rheumatica (PMR). GCA is a serious inflammatory disease affecting blood vessels, mainly in people over 50, which can cause severe complications like vision loss or stroke if untreated. PMR causes pain and stiffness in the limbs with signs of inflammation. The study involves both patients recently suspected of having GCA and those with confirmed diagnoses from the past. It seeks to provide new insights into disease causes and improve diagnosis and treatment approaches. Participants are observed in a multi-center study collecting clinical and genetic data. The study includes both prospective patients with suspected GCA and retrospective patients with confirmed GCA or PMR diagnoses. Some retrospective participants receiving tocilizumab for recurring or difficult-to-treat GCA are also included in a safety monitoring registry. Data collected include clinical features, imaging, tissue and blood samples, and advanced genetic testing. The study also follows patients over time to assess disease impact, quality of life, and long-term outcomes. During the study, participants provide medical information, biological samples, and complete questionnaires about their symptoms and quality of life. Researchers monitor disease activity and treatment effects, especially among those starting certain immune-modifying drugs. The main measurements focus on genetic susceptibility at the study start, with ongoing evaluation of diagnosis, prognosis, and disease progression. The study is designed to improve understanding and management of GCA and PMR over time.