Early Hemoglobin kinetics in response to ribavirin: Safety lesson learned from Hepatitis C to CoVID-19 therapy

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Abstract

Background

Ribavirin (RBV) is been used for SARS-CoV-2 infection. This drug is associated with a wide range of side effects, mainly anemia, so its use in patients with potential respiratory affectation could not be appropriate. The evidences of adverse events associated with RBV-use has mainly been derived in the context of hepatitis C (HCV) treatment, however the possible use of RBV in CoVID-19 patients could be limited to 14 days.

Methods

Longitudinal study including HIV/HCV coinfected patients. We evaluate the hemoglobin dynamics and reductions as well as evaluate the development rate of anemia during the first 2 weeks of therapy in HCV infected patients.

Results

189 patients were included in the study. The median hemoglobin levels were 14.6 g/dL (IQR: 13.2-15.6 g/dL) and 13.5 g/dL (IQR: 12.3-14.5 g/dL) at weeks 1 and 2 of therapy, respectively. A cumulative number of 27 (14.2%) patients developed anemia (23 grade 1 [12.1%] and 4 grade 2 [2.1%]). We identify a baseline hemoglobin levels of 14 g/dL as the better cut-off to identify those patients with a high chance to develop anemia. Of the 132 patients with baseline hemoglobin level >14 g/dL, 8 developed anemia (6.1%) compared with 19 of 57 (33.3%) with hemoglobin levels lower than 14 g/dL (p < 0.001).

Conclusions

Our study shows valuable information about the early hemoglobin kinetic timing in patients on RBV-therapy, that could be useful to tailor CoVID-19 treatment if RBV use is considered.

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