PsA and COVID-19

Psoriatic Arthritis and COVID-19

Patients with rheumatic disease who are immunosuppressed or have significant comorbidities are at increased risk for serious infection. The COVID-19 pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus, is of particular concern for these patients. Rheumatic disease and/or an immunocompromised status may place patients at higher risk for a more severe course of COVID-19, including complications, hospitalization, and death.1

Epidemiologic studies have found that patients with significant comorbidities, including cardiovascular disease, hypertension, and diabetes, are at increased risk for developing severe complications with COVID-19 infection. Current research is investigating the risk of severe COVID-19 in patients with PsA as the disease is associated with a higher incidence of comorbid cardiovascular disease, metabolic syndrome, obesity, diabetes mellitus, dyslipidemia, and inflammatory bowel disease.2

A comparative cohort study of patients with and without rheumatic disease found that both groups of patients had similar symptoms and laboratory findings. Although a similar proportion of patients with and without rheumatic disease was hospitalized in the study (44% vs 40%; P=0.50), patients with rheumatic disease were more likely to require intensive care admission and mechanical ventilation (48% vs 18%). The mortality rate was similar between the two groups (6% vs 4%; P=0.69).4

However, a small cohort study in Italy found that the presence of rheumatic disease or the degree of pharmacologic immunosuppression did not differ between patients with confirmed or suspected COVID-19 and those without. In this study, poor outcome was associated with older age and the presence of arterial hypertension and obesity.5 A large cohort study of 456 rheumatic and non-rheumatic patients found that chronic inflammatory arthritis or previous immunosuppressive therapies did not increase the risk of death, invasive ventilation, intensive care unit admission, or serious complications from COVID-19. However, older age, male sex, and previous comorbidity (obesity, diabetes, hypertension, cardiovascular or lung disease) were associated with increased risk in the rheumatic cohort.6

Treating PsA During the COVID-19 Pandemic

An additional concern for rheumatologists is the impact of PsA therapy on the risk of SARS-CoV-2 infection or the development of severe COVID-19. A case series of individuals with rheumatic disease and COVID-19 from the COVID-19 Global Rheumatology Alliance registry investigated the rate of hospitalization for COVID-19 in patients with rheumatic disease. The study found that a prednisone dose >10 mg/day was associated with a higher risk of hospitalization (OR, 2.05). However, use of conventional disease-modifying antirheumatic drugs (DMARDs) alone or in combination with biologics or Janus kinase inhibitors was not associated with an increased risk of hospitalization. No association between hospitalization and non-steroidal anti-inflammatory drugs (NSAIDs) or antimalarial use was observed. Tumor necrosis factor inhibitor (anti-TNF) use was found to significantly reduce the risk of COVID-19 hospitalization in this study (OR, 0.40).1 Another study in patients with inflammatory bowel disease and COVID-19 found that systemic corticosteroids increase the risk of severe COVID-19 (aOR, 6.9). Anti-TNF therapy was not associated with severe COVID-19 in this study (aOR, 0.9).7

HCQ = hydroxychloroquine; CQ = chloroquine; SSZ = sulfasalazine; MTX = methotrexate; LEF = leflunomide; CSA = cyclosporine; MMF = mycophenolate mofetil; AZA = azathioprine; JAK = Janus kinase; NSAID = non-steroidal anti-inflammatory drug; IL = interleukin

Some therapies for the management of PsA may need to be withheld in patients with confirmed or suspected COVID-19. For patients with uncomplicated COVID-19 infections, such as those who experienced mild or no pneumonia treated in the ambulatory setting or by self-quarantine, therapies to manage rheumatic disease may be reinitiated within 7-14 days of symptom resolution. For patients who are asymptomatic despite a positive PCR (polymerase chain reaction) test for SARS-CoV-2, PsA therapies may be restarted 10-17 days after the positive PCR result. Decisions regarding the timing of reinitiating PsA therapies in patients who recover from more severe COVID-19-related illness should be made on a case-by-case basis.8


  1. Gianfrancesco M, Hyrich KL, Al-Adely S, et al. Characteristics associated with hospitalization for COVID-19 in people with rheumatic disease: Data from the COVID-19 Global Rheumatology Alliance physician-reported registry. Ann Rheum Dis. 2020;79:859-866.
  2. Wollina U, Fioranelli M, Goldust M, et al. Psoriatic arthritis and COVID-19 pandemic: Consequences in medical treatment? Dermatol Ther. 2020;33:e13743.
  3. Wu Z, McGoogan JM. Characteristics of and important lessons from the coronavirus disease 2019 (COVID-19) outbreak in China: Summary of a report of 72,314 cases from the Chinese Center for Disease Control and Prevention. JAMA. 2020;323:1239-1242.
  4. D’Silva KM, Serling-Boyd N, Wallwork R, et al. Clinical characteristics and outcomes of patients with coronavirus disease 2019 (COVID-19) and rheumatic disease: A comparative cohort study from a US ‘hot spot’. Ann Rheum Dis. 2020;79:1156-1162.
  5. Fredi M, Cavazzana I, Moschetti L, et al. COVID-19 in patients with rheumatic disease in northern Italy: A single-centre observational and case-control study. Lancet Rheumatol. 2020;2:e549-e556.
  6. Pablos JL, Galindo M, Carmona L, et al. Clinical outcomes of hospitalized patients with COVID-19 and chronic inflammatory and autoimmune rheumatic diseases: A multicentric matched cohort study [published online ahead of print, 2020 Aug 12]. Ann Rheum Dis. 2020;218296.
  7. Brenner EJ, Ungaro RC, Gearry RB, et al. Corticosteroids, but not TNF antagonists, are associated with adverse COVID-19 outcomes in patients with inflammatory bowel diseases: Results from an international registry. Gastroenterol. 2020;159:481-491.e3.
  8. Mikuls TR, Johnson SR, Fraenkel L, et al. American College of Rheumatology Guidance for the Management of Rheumatic Disease in Adult Patients During the COVID-19 Pandemic: Version 2. Arthritis Rheumatol. 2020;72:e1-e12.
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Updates in the Treatment and Prevention of COVID-19

Casirivimab Plus Imdevimab Authorized for Post-exposure Prophylaxis Against COVID-19

The FDA has authorized the use of casirivimab plus imdevimab for post-exposure prophylaxis in people 12 years of age or older who are at high risk for progression to severe COVID-19. The authorization for the monoclonal antibody cocktail includes people who are not fully vaccinated or are not expected to mount an adequate response to vaccination and have been exposed to a SARS-CoV-2-infected individual or are at high risk of exposure because of infection occurring in the same institutional setting (such as in nursing homes or prisons).

In a phase 3 trial, the cocktail of casirivimab plus imdevimab was found to reduce the risk of symptomatic infections by 81% in those who were not infected when they entered the trial. In a subgroup of patients who met the criteria for high risk of progression to severe COVID-19, there was a 76% reduction in COVID-19 with this combination therapy compared with placebo. Casirivimab plus imdevimab reduced the risk of symptomatic infections by 62% in patients who were asymptomatic, regardless of their infection status. Patients with ongoing exposure may receive repeat dosing of casirivimab plus imdevimab monthly by intravenous infusion or subcutaneous injection.

Multiple analyses have shown that casirivimab plus imdevimab retains potency against the main variants of concerns circulating in the US, including the Delta (B.1.617.2; first identified in India), Gamma (P.1; first identified in Brazil), and Beta (B.1.351; first identified in South Africa) variants.


FDA. Fact sheet for health care providers. Emergency Use Authorization (EUA) of REGEN-COV™ (casirivimab and imdevimab). July 2021 ( Accessed 8/6/2021.