Mavrilimumab is a human monoclonal antibody that inhibits human

granulocyte macrophage colony-stimulating factor receptor The granulocyte-macrophage colony-stimulating factor receptor also known as CD116 (Cluster of Differentiation 116), is a receptor for granulocyte-macrophage colony-stimulating factor, which stimulates the production of white blood cells. In contra ...

(GM-CSF-R). Mavrilimumab was discovered as CAM-3001 by

Cambridge Antibody Technology Cambridge Antibody Technology (officially Cambridge Antibody Technology Group Plc, informally CAT) was a biotechnology company headquartered in Cambridge, England, United Kingdom. Its core focus was on antibody therapeutics, primarily using pha ...

and is being developed by

MedImmune MedImmune, LLC was a wholly owned subsidiary of AstraZeneca before February 14, 2019, when it was announced that the MedImmune name and branding would be discontinued in favor of AstraZeneca. MedImmune was founded in 1988 as Molecular Vaccines, ...

, Inc. as an investigational drug for the treatment of

rheumatoid arthritis Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and hands are invol ...

Mavrilimumab has been studied in a phase 1 dose-ranging trial and a phase 2a clinical trial, both sponsored by Medimmune. The phase 2a trial, which studied mavrilimumab doses of up to 100 mg, reported that 55.7% of subjects met the primary endpoint of a ≥1.2 decrease from baseline in disease activity scores at week 12 (vs. only 34.7% of placebo subjects). In 2013, two further clinical studies were reported to be underway in rheumatoid arthritis patients to investigate these effects further. In early 2017 the phase IIb study was reported to be showing promising results. In 2017, Kiniksa licensed Mavrilimumab from MedImmune. It was studied in 2020 to see if it could improve the prognosis for patients with

COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by a virus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China, in December 2019. The disease quickly ...

pneumonia Pneumonia is an inflammatory condition of the lung primarily affecting the small air sacs known as alveoli. Symptoms typically include some combination of productive or dry cough, chest pain, fever, and difficulty breathing. The severi ...

and systemic hyperinflammation. One small study indicated some beneficial effects of treatment with mavrilimumab compared with those who were not. In April 2021, Kiniksa outlined the next steps for development of Mavrilimumab - including in COVID-19–related acute respiratory distress syndrome (ARDS), giant cell arteritis (GCA), and rheumatoid arthritis (RA). “Recent favorable interactions with the FDA, based upon the clinical data generated with mavrilimumab in COVID-19-related ARDS, giant cell arteritis, and rheumatoid arthritis, underscore the broad utility of mavrilimumab and define a regulatory pathway for Phase 3 clinical development for each indication,” said Sanj K. Patel, Chief Executive Officer and Chairman of the Board of Kiniksa. “We believe the ongoing Phase 3 study of mavrilimumab in COVID-19-related ARDS represents the fastest path to potential registration for the asset, and there remains a significant unmet need in these patients. Enrollment in our Phase 3 clinical trial is ongoing, and we expect data in the first quarter of 2022.”.

References

Monoclonal antibodies AstraZeneca brands {{antineoplastic-drug-stub