A Phase 1, Randomised, Double-blind, Placebo-controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Preliminary Pharmacodynamics of KD6005 in Healthy Participants and Participants With Rheumatoid Arthritis (RA).
This phase 1 study will consist of two parts: Phase 1a is a single-dose study, and will evaluate the safety, tolerability, pharmacokinetics (PK) and preliminary pharmacodynamics (PD) in healthy participants. Phase 1b is a multiple doses study, and will evaluate the safety, tolerability, PK and preliminary PD in participants with rheumatoid arthritis (RA).
⁃ Main Inclusion Criteria for Healthy Participants (Phase 1a):
• Being voluntary to sign the informed consent form.
• Male or female age 18 to 50 years. Have a body mass index (BMI) between 19 and 26 kg/m2 inclusive and weigh at least 50kg for male , or at least 45kg female. In good overall health at the time of screening.
⁃ Main Inclusion Criteria for RA participants (Phase 1b):
• Being voluntary to sign the informed consent form.
• Age 18-70 years old, and subjects with rheumatoid arthritis (RA) diagnosed by the 1987 or 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) classification criteria.