Therapy Areas: Central Nervous System
Omeros Posts Preliminary Results from Additional Critically Ill COVID-19 Patients Treated with Narsoplimab
28 May 2021 - - US-based biopharmaceutical company Omeros Corp. (NASDAQ: OMER) has released preliminary results from the second cohort of critically ill COVID-19 patients treated with narsoplimab in Bergamo, Italy.

These patients were part of the "second surge" of COVID-19 in Italy. Narsoplimab is the company's lead inhibitor of mannan-binding lectin-associated serine protease 2 (MASP-2), the effector enzyme of the lectin pathway of complement.

The patients were treated under compassionate use at ASST Papa Giovanni XXIII Hospital between October 2020 and April 2021.

Narsoplimab is being evaluated in the I-SPY COVID-19 Trial, an adaptive platform clinical trial enrolling critically ill COVID-19 patients.

The trial is sponsored by Quantum Leap Healthcare Collaborative and is funded in part by the United States government through the Biomedical Advanced Research and Development Authority (BARDA). Narsoplimab is the only complement inhibitor in the I-SPY trial.

Narsoplimab holds Breakthrough Therapy and Orphan designations in both hematopoietic stem cell transplant-associated thrombotic microangiopathy (HSCT-TMA) and IgA nephropathy.

The Biologics License Application for narsoplimab in HSCT-TMA is under Priority Review by FDA. The drug also is in Phase 3 clinical trials for IgA nephropathy and atypical hemolytic uremic syndrome.

Omeros is a commercial-stage biopharmaceutical company committed to discovering, developing and commercializing small-molecule and protein therapeutics for large-market and orphan indications targeting inflammation, immunologic diseases (e.g., complement-mediated diseases and cancers) and central nervous system disorders.

Its commercial product Omidria (phenylephrine and ketorolac intraocular solution) 1%/0.3% continues to gain market share in cataract surgery.

Omeros' lead MASP-2 inhibitor narsoplimab targets the lectin pathway of complement and is the subject of a biologics license application under priority review by FDA for the treatment of hematopoietic stem cell transplant-associated thrombotic microangiopathy.

Narsoplimab is also in multiple late-stage clinical development programs focused on other complement-mediated disorders, including IgA nephropathy, atypical hemolytic uremic syndrome and COVID-19.

OMS906, Omeros' inhibitor of MASP-3, the key activator of the alternative pathway of complement, is in a Phase 1 clinical trial, and the company's PDE7 inhibitor program OMS527, targeting addiction and movement disorders, has successfully completed a Phase 1 trial.

Omeros' pipeline holds a diverse group of preclinical programs including a proprietary-asset-enabled antibody-generating technology and a proprietary GPCR platform through which it controls 54 GPCR drug targets and their corresponding compounds.

One of these novel targets, GPR174, modulates a new cancer immunity axis recently discovered by Omeros, and the company is advancing GPR174-targeting antibodies and small-molecule inhibitors.