A Study to Evaluate Safety, Tolerability, Pharmacokinetics, Immunogenicity, and Pharmacodynamics of JNJ-64179375 in Healthy Male Subjects

A 3-Part First-in-Human Study to Assess the Safety, Tolerability, Pharmacokinetics, Immunogenicity, and Pharmacodynamics of JNJ-64179375 in Healthy Male Subjects

The purpose of this study is to assess the safety and tolerability of JNJ-64179375 in Part 1 (Intravenous dose) and Part 3 (Subcutaneous dose) and potential for reversibility of JNJ-64179375 induced Pharmacodynamic effects on coagulation parameters and platelet function (Part 2) in healthy male participants.

Inclusion Criteria:

• Body mass index [weight kilogram per meter square (kg/m^2)] between 18 and 30 kg/m^2 (inclusive), and body weight greater than 50 kilogram (kg) but less than 100 kg
• Generally in good health on the basis of physical examination, medical history, vital signs, laboratory tests, and electrocardiogram (ECG) performed at screening and/or prior to administration of the initial dose of study drug
• Must sign an informed consent form (ICF) indicating that he understands the purpose of, and procedures required for, the study and is willing to participate in the study
• contraceptive use by men should be consistent with local regulations regarding the use of contraceptive methods for subject participating in clinical studies
• willing and able to adhere to the study visit schedule and other requirements, prohibitions, and restrictions specified in this protocol through the Day 113 visit

Exclusion Criteria:

• Acute illness, including an upper respiratory infection (with or without fever), within 7 days prior to study drug administration or have had a major illness or hospitalization within 1 month prior to study drug administration
• Clinically significant abnormal values for coagulation, hematology, clinical chemistry or urinalysis at screening or on Day -1 (at admission to the clinical research unit) as determined by the investigator or appropriate designee
• Have smoked tobacco or nicotine-related products within 6 months prior to dosing or does not agree to refrain through Day 113
• Donated blood or blood products or had substantial loss of blood [more than 500 milliliter (mL)] within 3 months before the first administration of study drug or intends to donate or donates blood or blood products during the study until 30 days after completion
• History of or current clinically significant medical illness including (but not limited to) cardiac arrhythmias or other cardiac disease, hematologic disease, bleeding or thrombotic disorders