MAD Study Evaluating the Safety, Tolerability, and Pharmacokinetic Effects of N91115 in Healthy Subjects

Inclusion Criteria: * Subject voluntarily agrees to participate in this study and signs an Institutional Review Board (IRB)-approved informed consent prior to performing any of the screening procedures and in the opinion of the PI complies with all the requirements of the study. * Subject is healthy, determined at the screening medical evaluation (including but not limited to medical history, physical examination and clinical laboratory evaluations). * Subject is Caucasian. * Female subject must be of non-childbearing potential (surgically sterile \[hysterectomy or bilateral tubal ligation\] or post-menopausal ≥ 1 year with follicle stimulating hormone \[FSH\] \> 40 U/L). Women receiving hormone replacement therapy (HRT) are eligible to enroll. * Male subject must agree to use condoms and refrain from sperm donation from Day 1 until 30 days post last dose or have documentation of vasectomy. * Subject has a body weight \> 50 kg and body mass index (BMI) between 19.5 and 32 kg/m2, inclusive, at screening. * Subject has no clinically significant abnormal findings related to their systolic or diastolic blood pressure (BP), per the investigator's judgment, at screening or Day 1. * Subject has no clinically significant abnormal findings in 12 lead ECG, per the investigator's judgment, at screening. Exclusion Criteria: * Subject has clinically significant history or evidence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, neurological, immunological, or psychiatric disorder(s) as determined by the investigator or designee. * Subject has clinically significant abnormalities on a 12 lead ECG done at screening * Subject has clinically significant abnormalities on a 48-hour ambulatory ECG done at screening * Subject has any disorder that would interfere with the absorption, distribution, metabolism, or excretion of drugs. * Subject has any concurrent disease or condition that, in the opinion of the investigator, would make the subject unsuitable for participation in the clinical study. * Subject is unlikely to comply with the protocol requirements, instructions, and study related restrictions; e.g., uncooperative attitude, unavailable for follow-up call, and/or improbability of completing the clinical study.