The primary purpose of Part A of this study is to compare, in a single dose and multiple doses the safety, tolerability, and pharmacokinetics (PK) profile administered in Japanese and Caucasian participants and of Part B of the study is to assess the food effect of a single dose of INS1007 administered in Japanese and Caucasian participants.

Inclusion Criteria:

• For Japanese participants: Participant is of Japanese descent as evidenced by verbal confirmation of familial heritage (a participant must have all four grandparents born in Japan). Participants must have lived less than 10 years outside of Japan.
• For Caucasian participants: Participants must be of Caucasian descent, as evidenced by verbal confirmation that all four grandparents are Caucasian.
• Healthy, based on pre-study medical evaluation (medical history, physical examination, vital signs, 12-lead electrocardiogram (ECG), and clinical laboratory evaluations) by the PI or designee.

Exclusion Criteria:

• Have clinically significant history or evidence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, neurological, immunological, or psychiatric disorder(s) as determined by the PI or designee.
• Have had serious, opportunistic, or chronic/recurring infection within 6 months prior to Screening. Examples may include, but are not limited to, infections requiring intravenous (IV) antibiotics, hospitalization, or prolonged (>14 day) anti-infective treatment.
• Have a history of multiple or severe allergies, or an anaphylactic reaction, to prescription or non-prescription drugs or food.
• Have a positive test for hepatitis B surface antigen (HBsAg), hepatitis C antibody, or human immunodeficiency virus (HIV) antigen or antibody at the Screening Visit.