A Study Validating the Use of Candin as a Challenge Agent in Healthy Participants - Intervention Specific Appendix 2

A Phase 1, Single Center, Randomized, Controlled Platform Study Validating the Use of Candin As a Challenge Agent in Healthy Volunteers or Patients Given Concomitant Approved Interventions

The purpose of this study is to characterize the delayed-type hypersensitivity (DTH) response at the site of Candin intradermal injection in the presence of a targeted immune pathway inhibitor.

Inclusion Criteria:

• Have a body mass index (BMI) between 18.0 and 30.0 kilogram per meter square (kg/m^2, inclusive (BMI = weight/height^2), and body weight of no less than 50 kilograms (kg)
• Healthy on the basis of physical examination, medical history, and vital signs performed at screening. Any abnormalities, must be considered not clinically significant and this determination must be recorded in the participant's source documents and initialed by the investigator
• Must be a non-smoker (not smoked for at least 6 months prior to screening) and has not used nicotine-containing products (example, nicotine patch) for 3 months prior to screening
• Has a negative severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) coronavirus disease 2019 (COVID-19) reverse transcription polymerase chain reaction (RT-PCR) test within 72 hours prior to administration of study intervention
• A woman must be: a) not of childbearing potential; or b) of childbearing potential and practicing a highly effective method of contraception (failure rate of less than [<] 1 percent [%] per year when used consistently and correctly) and agrees to remain on a highly effective method while receiving study intervention and until 4 months after study intervention administration - the end of relevant systemic exposure. The investigator should evaluate the potential for contraceptive method failure (example, noncompliance, recently initiated) in relationship to the study intervention administration

Exclusion Criteria:

• History of liver or renal insufficiency, significant cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, hematologic, rheumatologic, psychiatric, or metabolic, or mucocutaneous disturbances
• Known allergies, hypersensitivity, or intolerance to Candin or its excipients
• Has an active, acute or chronic infection
• has a history of psychiatric disorders (depression, suicidal ideation and/or behavior including suicides)
• Has had prior exposure to belimumab or other B-cell activating factor (BAFF) inhibitors, such as tabalumab, atacicept, and telitacicept