A Comparative Study to Investigate the Difference in Blood Levels of Two Different Formulations of GSK5784283

Inclusion Criteria: * Participants who are healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and ECG. * Body weight greater than or equal (\>=) 50 kilogram (kg) (110 pounds \[lbs\]) and body mass index within the range 19 to 30 kilogram per meter square (kg/m\^2) (inclusive). * A female participant is eligible to participate if she is a participant of non-childbearing potential (PONCBP) as specified in the protocol. * Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. Exclusion Criteria: * Hypersensitivity- Participants with allergy/intolerance to any biologic therapy or any of the known excipients used in products administered subcutaneously * History or presence of any clinically significant medical condition capable of significantly altering the absorption, metabolism, or elimination of drugs; constituting a risk when taking the study intervention or interfering with the interpretation of data. * Any clinically relevant abnormal findings in physical examination, hematology, clinical chemistry, urinalysis, vital signs during screening period which in the opinion of the investigator, may put the subject at risk because of his/her participation in the study, or may influence the results of the study, or the subject's ability to participate in the study. * Live vaccine(s) within 1 month prior to screening or plans to re…