Single-Center Cross-Sectional Analysis of Patients with RA, SpA, and PsA: Data from the Prescription Database

Introduction. The Italian Committee for Tailored BIOlogic Therapy (ITABIO), in a first report, has reviewed the literature to identify the best strategy for the choice of second-line biologic therapy in patients with rheumatoid arthritis (RA), spondyloarthritis (SpA), and psoriatic arthritis (PsA). To verify the application of ITABIO recommendations in real life and how the recommendations perform in maintaining the health status of patients affected by inflammatory arthritis (RA, SpA, PsA), a database has been developed by Pharmaceutical Governance to evaluate the appropriateness of prescriptions. Methods. We have analyzed retrospectively 616 patients, 288 (46.7%) affected by RA, 117 (19%) affected by SpA, and 211 (34.3%) affected by PsA. Age, sex, diagnosis, current treatment, previous treatments with csDMARDs, b-DMARDs, ts-DMARDs, presence of risk factors for cardiovascular (CV) events, liver disease, infections, extra-articular manifestations such as interstitial lung disease (ILD) for RA, enthesitis, dactylitis, uveitis, inflammatory bowel disease for SpA and PsA, neoplasms, diabetes, presence or absence of rheumatoid factor (RF) and anti-citrullinated peptide antibodies (ACPA) for RA were evaluated. Results. The percentage of treatments with anti-TNF biosimilars was 65.1, 52.4, and 24.3% in SpA (76 patients(pt)), PsA (110 pt), and RA (69 pt), respectively. The percentage of monotherapy was 68% (418 pt) in the three diseases. For RA, 34.2% of patients were difficult to treat (D2T) (98 pt), 54.8% (157 pt) were in monotherapy (tocilizumab-sarilumab-upadacitinib-filgotinib). Abatacept was the most prescribed treatment in RF and ACPA-positive patients and in those with ILD. The anti-IL-17A secukinumab was prescribed in 12% of SpA, of which 71% had enthesitis and dactylitis (14 pt). Ixekizumab was prescribed in 10.4% of PsA patients over 65 years with previous CV events, enthesitis, and dactylitis (21 pt). Apremilast was present in 71% of PsA with previous cancer. Conclusions. The cross-sectional analysis of prescriptions in patients with RA, SpA, and PsA demonstrates how the ITABIO recommendations can guide towards the correct appropriateness of prescription. RA and especially D2T-RA remains the disease with the greatest therapeutic failures, with the highest percentage of monotherapy (anti-IL-6 and Jak-i) and of discontinuation of MTX.