CLINICAL RESEARCH PROTOCOL [A Phase I, Single-arm, Open-label, Dose-escalation Clinical Study to Evaluate the Safety and Tolerability of Orialpha (BD-C) in Healthy Adult Volunteers]

Inclusion Criteria: 1. Healthy male or female, aged 18 to 60 years. 2. No clinically significant abnormalities in hematology, biochemistry, electrocardiogram (ECG), or vital signs as assessed by the investigator. 3. Willing to voluntarily participate in the study by signing the informed consent form. 4. Able to comply with study procedures and treatment as assessed by the investigator. Exclusion Criteria: 1. History of allergy to herbal-derived drugs similar to the investigational product or any excipient. 2. Current or prior participation in another clinical trial involving an investigational product within the past 4 months. 3. Use of immunosuppressive drugs within 28 days prior to the first dose of Orialpha. 4. Active autoimmune disease or documented history of autoimmune disease within the past 2 years. 5. History of primary immunodeficiency. 6. Presence of any acute or chronic illness requiring treatment. 7. Inability to comply with study procedures or investigational product administration as assessed by the investigator. 8. Female subjects who are pregnant or breastfeeding, or male or female subjects of reproductive potential not using effective contraception. 9. Any condition which, in the opinion of the investigator, would interfere with the evaluation of the investigational treatment, patient safety, or interpretation of study results