Synonyms: PRO 140 | PRO-140 | PRO140 | Vyrologix®
Compound class:
Antibody
Comment: Leronlimab (PRO140) is a humanized anti-CCR5 (C-C motif chemokine receptor 5) monoclonal antibody [5-6]. It was originally developed by CytoDyn as a novel strategy to manage CCR5-tropic HIV infection [4].
SARS-CoV-2 and COVID-19: Leronlimab has been administered to a number of patients with severe COVID-19, to determine its potential to reduce cytokine storm caused by this disease. |
No information available. |
Summary of Clinical Use ![]() |
In addition to HIV, leronlimab has been re-positioned for some metastatic solid tumours, particularly triple negative breast cancer, and Graft-versus-host disease [1]. with the advent of COVID-19, leronlimab is being given to some patients with severe disease, under compassionate use or an emergency IND, and concurrent with the initiation of formal clinical trials. Although not published yet, preliminary evidence indicates that in COVID-19 patients leronlimab reduces levels of cytokine storm cytokines IL-6, and TNFα, provides immunological benefit, and promotes signifiant recovery within a few days following treatment [2-3]. |
Clinical Trials | |||||
Clinical Trial ID | Title | Type | Source | Comment | References |
NCT02859961 | Study of PRO 140 SC as Single Agent Maintenance Therapy in Virally Suppressed Subjects With CCR5-tropic HIV-1 Infection | Phase 2/Phase 3 Interventional | CytoDyn, Inc. | ||
NCT02737306 | Study of PRO 140 for Prophylaxis of Acute GVHD in Patients Undergoing RIC Allogenic Stem-Cell Transplantaton | Phase 2 Interventional | CytoDyn, Inc. | ||
NCT03838367 | Leronlimab (PRO 140) Combined With Carboplatin in Patients With CCR5+ mTNBC | Phase 1/Phase 2 Interventional | CytoDyn, Inc. | ||
NCT04343651 | Study to Evaluate the Efficacy and Safety of Leronlimab for Mild to Moderate COVID-19 | Phase 2 Interventional | CytoDyn, Inc. | ||
NCT04347239 | Study to Evaluate the Efficacy and Safety of Leronlimab for Patients With Severe or Critical Coronavirus Disease 2019 (COVID-19) | Phase 2 Interventional | CytoDyn, Inc. |