A Study of Single Dose of LP-003 in Healthy Adult Subjects

Exclusion Criteria

• •1. People who are allergic to the experimental drug and any of its excipients, have a history of allergy to monoclonal antibodies, and are allergic to multiple drugs and food.
• •2. Patients who have been or are currently suffering from any clinically serious diseases such as circulatory system, endocrine system, nervous system, digestive system, respiratory system, urogenital system, hematology, immunology, psychiatric and metabolic abnormalities, or any other diseases that can interfere with the test results.
• •3. Patients who had undergone surgery within 3 months before the trial that the researchers judged would affect drug absorption, distribution, metabolism, and excretion, or had surgery within 4 weeks prior to the trial, or planned to have surgery during the study period.
• •4. Any history of infection within 14 days prior to administration.
• •5. A person who is currently infected with parasites or has traveled to an endemic area within the last 3 months or 24 weeks prior to administration.
• •6. Pregnant and lactating women.
• •7. Hepatitis B surface antigen, hepatitis C virus antibodies, human immunodeficiency virus antibodies, treponema pallidum antibodies A positive person.
• •8. Patients who have received any biological agent (including antibodies or derivatives such as omazumab) within 16 weeks prior to administration (or 5 half-lives, selecting the longer time period).
• •9. Participants who had participated in other clinical trials within 3 months prior to screening.
• •10. The investigator deems any condition unsuitable for study participation.