Safety, Tolerability and Pharmacokinetics of CDD-2101 in Health Volunteers

All subjects will receive 4 sachets of CDD-2101 and/or placebo at a time based on the computer-generated randomization. An unblinded pharmacist will mix the assigned dose of CDD-2101 and/or placebo with 400 mL of water at 70-80°C, cool it to a comfortable temperature and keep it at room temperature for not longer than 1 h. A blinded study nurse or investigator will dispense the suspension to the assigned subject. The subject will drink it under supervision within 15 minutes.