Mechanisms of Interferon Gamma-primed Mesenchymal Stromal Cells (MSCs) for Moderate-to-severe Persistent Asthma

Participants who experience symptoms of cough, dyspnea, chest tightness or wheezing will initiate use of albuterol (2 inhalations, 90 mcg/actuation) by metered dose inhaler (MDI) every 20 minutes for up to 1 hour and then every 4 hours if necessary.

IFNγ-primed bone marrow MSCs at a dose level of 2x106 cells/kg and a dose level of 5x106 cells/kg

Prednisone is recommended if the participant uses more than 12 inhalations of albuterol in 24 hours (excluding preventive use before exercise), or if the patient has ongoing symptoms for 48 hours or longer. The recommended prednisone dose for acute exacerbations is 2 mg/kg/day (maximum 60 mg) as a single dose for two days followed by 1 mg/kg/day (maximum 30 mg) as a single dose for two days. All administered doses will be rounded down to the nearest 10 mg.