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Clinical Trial Summary

This study is a prospective, phase II, multi-center, randomized, double-blind, placebo-controlled trial to evaluate the efficacy and safety of mavrilimumab in hospitalized patients with acute respiratory failure requiring oxygen supplementation in COVID- 19 pneumonia and a hyper-inflammatory status. The study will randomize patients to mavrilimumab or placebo, in addition to standard of care per local practice. The total trial duration will be 12 weeks after single mavrilimumab or placebo dose.


Clinical Trial Description

To evaluate the efficacy and safety of mavrilimumab versus placebo in addition to best standard of care (SoC) in the treatment of COVID-19 pneumonia.

As of May 13, 2020, COVID-19 has been confirmed in more than 4.2 million people worldwide. Mortality rate has been reported to be approximately 3.7%, which is nearly 4 times higher than that of influenza: there is an urgent need for effective treatment.

Accumulating evidence suggests that patients with severe acute COVID-19 pneumonia have a cytokine storm syndrome, or unbalanced hyper-inflammatory response resulting in markedly elevated cytokine and chemokine production.

GM-CSF is a cytokine with dual roles as a critical pulmonary hormone and proinflammatory properties that can exaggerate tissue inflammation. Recent preliminary uncontrolled clinical observations on 13 non-mechanically-ventilated patients in the promoter institution suggest that GM-CSF pathway blockade with mavrilimumab is an effective and well-tolerated treatment for COVID-19 pneumonia.

We will perform a prospective, phase II, multi-center, randomized, double-blind, placebo-controlled trial to evaluate the efficacy and safety of mavrilimumab in hospitalized patients with acute respiratory failure requiring oxygen supplementation in COVID- 19 pneumonia and a hyper-inflammatory status. The study will randomize non-mechanically-ventilated adult patients to mavrilimumab or placebo, in addition to standard of care per local practice, which may include but not limited to anti-viral treatment, hydroxychloroquine, low-dose corticosteroids (≤ 10 mg of prednisone or equivalent) and/or supportive care. The total trial duration will be 12 weeks after single mavrilimumab or placebo infusion. Safety will be closely monitored by a dedicated external data safety monitoring board (DSMB) at regular intervals during the study. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04397497
Study type Interventional
Source Ospedale San Raffaele
Contact Lorenzo Dagna, MD
Phone +390226434683
Email dagna.lorenzo@unisr.it
Status Not yet recruiting
Phase Phase 2
Start date May 22, 2020
Completion date November 22, 2020

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