Treatment access and adherence during social preventive and mandatory isolation in argentinian patients with spondylarthritis

ABSTRACT

Background: Access to high-cost treatments is especially limited in low-resource countries. This issue is becoming stronger today given the health and economic crisis caused by the SARS-CoV2 pandemic. There are no reports in our country on limitations to access and adherence to treatment in patients with Spondyloarthritis (SpA) during social preventive and mandatory isolation. Objectives: Evaluate access and adherence to treatment in patients with Spondyloarthritis during social preventive and mandatory isolation. Methods: Patients with axial spondyloarthritis (axSpA) radiological (r-axSpA), non-radiological (nr-axSpA) and peripheral spondyloarthritis (pSpA), according to ASAS criteria and psoriatic arthritis (PsA) according to CASPAR criteria, were included. Sociodemographic data, comorbidities, disease activity and treatments were collected at baseline. Data on treatment discontinuation, medical attention for suspected COVID-19 disease, RT-qPCR for SARS-CoV-2 detection and outcome of COVID-19 disease were collected from April to September 2020. Numerical variables were summarized as means and standard deviations (SD) or as medians and interquartiles 25-75 (IQ 25-75). Results: 320 patients were included, 55% were male, with a mean age of 50 years (SD 13), 21.6% had diagnosis of r-axSpA, 6.9% nr-axSpA, 6.9% pSpA, and 64.7% PsA. Disease duration was 11 (IQ 5-16) years and activity parameters were as follow BASDAI 3.65 (SD 3), BASFI 3 (1.5-9), PASI 0.3 (0-7), BSA 0.2 (0-6). 14 (4.4%) patients with COVID-19 disease were reported, 10 were confirmed by positive RT-qPCR and 4 by symptoms and history of close contact with SARS patients. 4 (28.6%) received anti TNF (3 adalimumab, 1 certolizumab), 4 (28.6%) anti IL17 (3 secukinumab and 1 ixekizumab), 8 (57%) methotrexate (MTX) and 2 (14%) leflunomide (LF). Among the 320 patients included, 59 (18.4%) discontinued at least one treatment during follow-up. The discontinued medications were adalimumab (16), MTX (15), secukinumab (9), etanercept (6), certolizumab(4), ustekinumab (3), NSAIDs (2), apremilast (1), golimumab (1), ixekuzumab (1), LF (1), MTX plus LF (1). The main reason for treatment discontinuation was drug shortage 36 (62%), followed by patient's decision 12 (21%) and medical indication 11 (17%). Of the 36 patients who discontinued due to shortage, 11 received adalimumab, 8 secukinumab, 5 MTX, 3 etanercept, 3 certolizumab, 3 ustekinumab, 2 NSAIDs and 1 golimumab. Conclusion: In our Argentinian cohort of patients with SpA, drug shortage was the main reason for treatment discontinuation. The SARS-CoV2 pandemic exposed limitations to access to treatment for patients with SpA.