Reduced Cell Surface Levels of C-C Chemokine Receptor 5 and Immunosuppression in Long Coronavirus Disease 2019 Syndrome.

Gaylis, Norman B; Ritter, Angela; Kelly, Scott A; Pourhassan, Nader Z; Tiwary, Meenakshi; Sacha, Jonah B; Hansen, Scott G; Recknor, Christopher et al. · Clin Infect Dis · 2022

rct · Level II

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Abstract

In an exploratory trial treating "long COVID" with the CCR5-binding antibody leronlimab, we observed significantly increased blood cell surface CCR5 in treated symptomatic responders but not in nonresponders or placebo-treated participants. These findings suggest an unexpected mechanism of abnormal immune downmodulation in some persons that is normalized by leronlimab. Clinical Trials Registration. NCT04678830.

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