Abstract
Pentoxifylline (PTX) has broad-spectrum properties such as anti-inflammatory, anticoagulant, and antiviral effects. The aim of this study was to evaluate the efficacy and safety of PTX in hospitalized patients with COVID-19.This double-blind, placebo-controlled randomized clinical trial was conducted on hospitalized patients with COVID-19. The recruited patients were randomly (1:1) assigned to the PTX group and the placebo group. The intervention group received PTX capsules at a dose of 400 mg three times a day for 10 days along with the national regimen, including interferon plus lopinavir/ritonavir and hydroxychloroquine. The primary outcome was the improvement of clinical scores. The secondary outcomes, on the other hand, were improvement in inflammatory and oxidative stress factors and hospital complications.From a total of 102 patients who met the inclusion criteria, 72 individuals completed the study and were analyzed. No significant differences were shown in demographics and baseline clinical characteristics. Clinical scores was not significant between the two groups (P = 0.31 and 0.07 for day 5 and 11, respectively). Although the mean serum levels of interleukin-6 (IL-6) and glutathione changed significantly after 5 days in the PTX group (P = 0.03 and p = 0.04), ICU admission, intubation, and hospital stay did not differ between the two groups.The results of our study did not show any superiority of PTX over placebo in improving the clinical outcomes of patients with COVID-19. Although PTX had a beneficial effect on IL-6 and showed an acceptable safety profile, it did not offer any clinical benefit for COVID-19 complications.
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