U.S., Feb. 19 -- ClinicalTrials.gov registry received information related to the study (NCT07417995) titled 'A Study of Clinical and Immune Responses to Sequential Biologic Therapies in Psoriatic Arthritis' on Feb. 11.
Brief Summary: The goal of this observational study is to evaluate how well advanced therapies work in adults with psoriatic arthritis (PsA) who are starting a biologic or targeted synthetic disease-modifying antirheumatic drug (b/tsDMARD) as part of routine care.
The main questions are:
* Do treatment responses differ according to the number of previous advanced therapies?
* Can anti-drug antibodies (ADAs) or blood drug levels help predict treatment effectiveness?
Researchers will compare participants receiving earlier-...