Massive arthritis registry aims to unlock secrets of best treatments

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

To be eligible for enrollment into the Corrona PsA-SpA Registry, a patient must satisfy all of the inclusion criteria and none of the exclusion criteria listed below. Inclusion Criteria The patient must be: 1. One of the following: 1. Diagnosed with psoriatic arthritis (PsA) and initiating (prescribed or starting) an eligible medication† for the treatment of PsA at the enrollment visit. 2. Meet the ASAS criteria for axial spondyloarthritis (AxSpA), including radiographic or non-radiographic, and initiating (prescribed or starting) an eligible biologic for the treatment of AxSpA at the enrollment visit. 3. Meet the modified New York classification criteria for ankylosing spondylitis (AS) and initiating (prescribed or starting) an eligible biologic for the treatment of AS at the enrollment visit 2. At least 18 years of age or older 3. Able and willing to provide written consent Exclusion Criteria The patient must not be: 1. Diagnosed with rheumatoid arthritis, systemic lupus erythematosus, or any other form of autoimmune inflammatory arthritis. 2. Participating in or planning to participate in a clinical trial with an interventional research study of a non-marketed or marketed investigational drug (e.g. phase I-IV clinical drug trial, post marketing study or registry study where drug is being provided). Of note, concurrent participation in another observational registry study is not excluded. ∆ * Once clinical trial participation has ended, a patient is permitted to enroll in the registry if they satisfy the eligibility requirements at the time of enrollment. If the patient participated in the PsA-SpA registry and was exited to join a clinical trial, the patient cannot be re-enrolled in the PsA-SpA registry after clinical trial participation has ended. Patients switching from an originator biologic to a biosimilar satisfy the enrollment eligibility requirement.