Utility of tofacitinib beyond autoimmunity

ABSTRACT

Objectives: This study was conducted to describe the use of tofacitinib in severe and critical Coronavirus disease -2019 (COVID-19), and to explore the association of drug initiation time with survival. Method(s) This was a retrospective chart review of inpatients with severe or critical COVID-19 at a tertiary care hospital, who received generic tofacitinib for at least 48 hours. The baseline demographics, comorbidities, treatment, adverse effects and outcomes (i.e. mortality at day 28) were analysed. The severity of COVID-19 was categorised as per WHO classification. Patients were further grouped based on median duration of symptomatic illness prior to tofacitinib administration, as early or late initiation groups. Result(s) Forty-one patients [(85.4% males), mean age 52.9 +/- 12.5 years], were studied. 65.9% (n = 27) of patients had severe COVID-19, while 34.1% (n = 14) were critically ill. Death occurred in 36.6% patients (n = 15). The median time to prescription of tofacitinib was 13 (9.50, 16.0) days of symptom onset. Tofacitinib was initiated early (8-13 days) in 56.1% of patients (n = 23), while the remaining received it beyond day 14 of symptom onset (late initiation group). The proportion of survivors was significantly higher in the early initiation group (21/23, 91.3%) compared to the late group (5/18, 27.8%) (P < 0.0001). Among severe COVID-19 patients, 100% and 62.5% of the patients were survivors among early and late initiation groups respectively (P < 0.01). In the critical COVID-19 patients, 50% were alive on day 28 in the early group while all died in the hospital in the late initiation group (P = 0.06). Multivariate logistic regression adjusted for age, presence of diabetes mellitus (DM) and illness duration prior to hospitalisation demonstrated higher odds of survival (AOR-19.3, 95% C.I. 2.57, 145.2) in the early initiation group, compared to the late initiation group. Conclusion(s) Early initiation of tofacitinib in severe and critical COVID-19 has potential to improve survival odds. (Table Presented).