This is a Phase 2b multi-center, randomized, double-blind, placebo-controlled study evaluating the efficacy and safety of intravenous (IV) Allocetra-OTS 10x10^9 cells vs placebo (1:1) in adult hospitalized patients with severe or critical Coronavirus Disease 2019 (COVID-19) with associated acute respiratory distress syndrome (ARDS).~Severe and critical COVID-19 are defined as follows:~Severe COVID-19: shortness of breath at rest, or respiratory distress, or respiratory rate (RR) ≥30 per minute, or SpO2 ≤93% on room air at sea level.~Critical COVID-19: respiratory failure, requiring at least one of the following: oxygen delivered by high-flow nasal cannula or noninvasive positive pressure ventilation.~After a patient has signed the informed consent form (ICF), and after confirmation that the patient meets all eligibility criteria, the patient will be enrolled in the study. The two subpopulations, severely ill and critically ill patients, will be randomized 1:1 into the active treatment and placebo groups via two separate randomizations schemes.~Study treatment (Investigational Product or placebo) administration will occur on Day 1 as close as possible to and no later than 48 hours from randomization. Assessments, performed on Day 1 prior to study treatment administration, will be considered as baseline assessments.~Patients will be followed for efficacy and safety through 6 months. Following study treatment administration, patients will be assessed daily for a period of 7 days. The next visits are planned to occur on Days 14, 28 and 60. A safety follow-up phone call will be scheduled to occur 6 months post study treatment. Hospitalized patients will be monitored on a daily basis until discharge or up to 60 days post study treatment administration.~Blood samples for safety assessment will be analyzed locally as per institutional guidelines.~Additional blood samples will be collected for potential exploratory analyses. Such biomarker analyses will be performed centrally as per Sponsor requirements.~Patients who drop out within the interval between the randomization and study treatment administration will be replaced to keep the originally planned sample size.~The trial will include periodic and ad-hoc Data Safety Monitoring Board (DSMB) review during the study period.
This is a Phase 2b multi-center, randomized, double-blind, placebo-controlled study evaluating the efficacy and safety of intravenous (IV) Allocetra-OTS 10x10^9 cells vs placebo (1:1) in adult hospitalized patients with severe or critical Coronavirus Disease 2019 (COVID-19) with associated acute respiratory distress syndrome (ARDS). Patients will be followed for efficacy and safety for 6 months. The trial will include periodic and ad-hoc DSMB review during the study period.