1. Age <br/ >Phase 1: â?¥ 18 years to â?¤ 55 years <br/ >Phase 2: â?¥ 18 years to â?¤ 65 years <br/ >2. Are male or non-pregnant females who agree to contraceptive requirements. <br/ >3. Patients with RT-PCR confirmed COVID-19 in â?¤ 72 hours prior to randomization [Ct â?¥ 24]. <br/ >4. Have SpO2 <94% (range 90-93%) on room air. <br/ >5. Have one or more of the following- dyspnea, fever, cough, respiratory rate â?¥ 24 per minute and heart rate up to 120 per minute. <br/ >6. Patients who agree to participate in the study and follow all study related procedures

1. Age <br/ >Phase 1: â?¥ 18 years to â?¤ 55 years <br/ >Phase 2: â?¥ 18 years to â?¤ 65 years <br/ >2. Are male or non-pregnant females who agree to contraceptive requirements. <br/ >3. Patients with RT-PCR confirmed COVID-19 in â?¤ 72 hours prior to randomization [Ct â?¥ 24]. <br/ >4. Have SpO2 <94% (range 90-93%) on room air. <br/ >5. Have one or more of the following- dyspnea, fever, cough, respiratory rate â?¥ 24 per minute and heart rate up to 120 per minute. <br/ >6. Patients who agree to participate in the study and follow all study related procedures

1. Age <br/ >Phase 1: â?¥ 18 years to â?¤ 55 years <br/ >Phase 2: â?¥ 18 years to â?¤ 65 years <br/ >2. Are male or non-pregnant females who agree to contraceptive requirements. <br/ >3. Patients with RT-PCR confirmed COVID-19 in â?¤ 72 hours prior to randomization [Ct â?¥ 24]. <br/ >4. Have SpO2 <94% (range 90-93%) on room air. <br/ >5. Have one or more of the following- dyspnea, fever, cough, respiratory rate â?¥ 24 per minute and heart rate up to 120 per minute. <br/ >6. Patients who agree to participate in the study and follow all study related procedures

1. Age <br/ >Phase 1: â?¥ 18 years to â?¤ 55 years <br/ >Phase 2: â?¥ 18 years to â?¤ 65 years <br/ >2. Are male or non-pregnant females who agree to contraceptive requirements. <br/ >3. Patients with RT-PCR confirmed COVID-19 in â?¤ 72 hours prior to randomization [Ct â?¥ 24]. <br/ >4. Have SpO2 <94% (range 90-93%) on room air. <br/ >5. Have one or more of the following- dyspnea, fever, cough, respiratory rate â?¥ 24 per minute and heart rate up to 120 per minute. <br/ >6. Patients who agree to participate in the study and follow all study related procedures