A Phase 1, First-time-in-human, Four-part Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Immunogenicity of GSK4527363 in Healthy Participants (Part A), Participants With Active Systemic Lupus Erythematosus (Part B), Healthy Participants of Chinese and Japanese Descent (Part C) and Participants With Interstitial Lung Disease Associated With Connective Tissue Disease (Part D)

Inclusion criteria: For Part A and Part C (Healthy Participants): * Participant must be 18 to 55 years of age inclusive, at the time of signing the informed consent form * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring (vital signs and 12-lead ECG) * Part C only: Be of Japanese (Cohort C1) or Chinese (Cohort C2) ancestry i. Born in Japan (Cohort C1) or China mainland, Hong Kong or Taiwan (Cohort C2); and ii. Descendent of 2 ethnic Japanese (Cohort C1) or Chinese (Cohort C2) par…