A Clinical Study of the HIV Drug CPT31 in Healthy Volunteers

Inclusion Criteria

• Males or females, of any race, between 18 and 55 years of age, inclusive.
• Body mass index between 18.0 and 32.0 kg/m2, inclusive.
• In good health, determined by no clinically significant findings from medical and surgical history, physical examination, 12 lead ECG, vital signs measurements, and clinical laboratory evaluations (congenital nonhemolytic hyperbilirubinemia [e.g., suspicion of Gilbert's syndrome based on total and direct bilirubin] is not acceptable) at Screening and/or Day -1 as assessed by the Investigator (or designee).
• Females will not be pregnant or have been within the previous 3 months, or lactating, and females of childbearing potential and males will agree to use contraception.
• Able to comprehend and willing to sign an Informed Consent Form (ICF) and to abide by the study restrictions.

Exclusion Criteria

• Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder, as determined by the Investigator (or designee).
• A ≥Grade 2 laboratory abnormality at Screening or Day -1 as defined by the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events, Version 2.1 dated July 2017.
• Estimated glomerular filtration rate (eGFR per CKD-Epi equation) of 21 units per week for males and > 14 units for females. One unit of alcohol equals 12 oz (360 mL) beer, 1½ oz (45 mL) liquor, or 5 oz (150 mL) wine.
• Positive urine drug screen at Screening or positive alcohol breath test result or positive urine drug screen on Day -1.
• Positive HIV test as documented by Combo Ag/Ab HIV 1/HIV-2 immunoassay.
• Positive hepatitis B surface antigen, positive hepatitis B core antibody with negative hepatitis B surface antibody test result, or positive hepatitis C antibody at Screening or within 3 months before first dose of study treatment.
• Participation in a clinical study involving administration of an investigational drug in the past 30 days prior to dosing.
• Use or intend to use any prescription or over the counter medications/products (including HIV medications being used for pre-exposure prophylaxis) other than hormone replacement therapy, oral, implantable, transdermal, injectable, or intrauterine contraceptives or acetaminophen up to 2 grams per day for no more than 3 consecutive days within 14 days prior to dosing, unless deemed acceptable by the Investigator (or designee).
• Use of tobacco or nicotine containing products within 3 months prior to Day -1, or positive cotinine at Screening or Day -1.
• Receipt of blood products within 2 months prior to Day -1.
• Donation of blood from 3 months prior to Screening, plasma from 2 weeks prior to Screening, or platelets from 6 weeks prior to Screening.
• Poor peripheral venous access.
• Have previously completed or withdrawn from this study or any other study investigating CPT31 and have previously received the investigational product.
• Subjects who, in the opinion of the Investigator (or designee), should not participate in this study.
• Have any clinically significant abnormal ECG results constituting a risk while taking the investigational product, as determined by the Investigator, such as any of the following, as determined by single 12-lead ECG: QT interval corrected for heart rate using Fridericia's method (QTcF) >450 ms for males and >470 ms for females, confirmed by calculating the mean of the original value and 2 repeats; QRS duration >120 ms confirmed by calculating the mean of the original value and 2 repeats; PR interval >220 ms confirmed by calculating the mean of the original value and 2 repeats; findings which would make QTc measurements difficult or QTc data uninterpretable; history of additional risk factors for torsades de pointes (e.g., heart failure, hypokalemia, family history of long QT syndrome); risks related to bradycardia, for