A Study to Assess the Safety, Tolerability, and Pharmacokinetics of Oral ARN-75039 in Healthy Adult Subjects

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

94 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-01-09

Study Completion Date

2025-03-28

Brief Summary

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This is a randomized, double-blind, placebo-controlled study to assess the safety, tolerability, and pharmacokinetics (PK) of escalating single ascending dose (SAD) and multiple ascending doses (MAD) of ARN-75039 when administered by the oral route in healthy adult subjects. The SAD portion of the study will enroll approximately 40 subjects for a total duration of 6 weeks. A cohort of 8 subjects in the SAD portion of the study will be selected to assess food effect (including relative bioavailability). The MAD portion of the study will enroll approximately 24 subjects for a total duration of 10 weeks.

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Detailed Description

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This is a randomized, double-blind study of ARN-75039 or placebo given as single and multiple escalating doses in normal healthy subjects. The study will be conducted in three parts: Part 1 will be a Single Ascending Dose (SAD) study enrolling approximately 40 subjects for a total duration of 6 weeks. Part 2 will be a Multiple Ascending Dose (MAD) study enrolling approximately 24 subjects for a total duration of 10 weeks, and part 3 will be a selected SAD cohort in a fasted state to evaluate the effect of food on the bioavailability of ARN-75039, enrolling approximately 8 subjects from a selected SAD cohort for a duration of 6 weeks. The dose escalation will be performed in a step-wise manner. Dose escalation stopping rules will be used to determine whether or not investigation of a higher dose level will proceed per protocol. Safety and tolerability will be assessed by periodic measurement of vital signs, physical examinations, electrocardiograms, blood laboratory analyses and occurrence of adverse events (AE). PK blood samples will be collected at pre-specified time points for noncompartmental data analysis. The PK parameters include but are not limited to: Cmax, Tmax, AUC, CL, and t½. For determination of the food effect, for selected PK parameters (e.g., Cmax, AUC0-τ, and AUC0-∞), comparisons between the fed and fasted conditions will be made.

Conditions

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Lassa Virus Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

This is a randomized, double-blind, placebo-controlled study to assess the safety, tolerability, and PK of escalating single and multiple doses of ARN-75039 when administered by the oral route in healthy adult subjects. Up to 5 single ascending dose (SAD) cohorts and up to 3 multiple ascending dose (MAD) cohorts, with approximately 8 subjects per cohort, will be enrolled to receive study drug or placebo. Within each cohort, the first 2 subjects will be randomized 1:1 to receive ARN-75039 capsules or placebo. After a review of the first 3 days of blinded safety for these subjects by the Medical Monitor, an additional 6 subjects will be randomized in a 5:1 (active: placebo) ratio. Each subsequent dose escalation will be based on safety data review of the current dose level.

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Central, computer-generated randomization scheme

Study Groups

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ARN-75039

Escalating single or multiple doses of ARN-75039 oral capsules

Group Type EXPERIMENTAL

ARN-75039 oral capsules

Intervention Type DRUG

SAD: Up to 5 single escalating doses MAD: Up to 3 escalating doses Food-effect: Selected single dose

Placebo

Matching placebo capsules in a same SAD and MAD dosing regimen as ARN-75039

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Given at frequency and amounts matching ARN- 75039 dosing regimen

Interventions

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ARN-75039 oral capsules

SAD: Up to 5 single escalating doses MAD: Up to 3 escalating doses Food-effect: Selected single dose

Intervention Type DRUG

Placebo

Given at frequency and amounts matching ARN- 75039 dosing regimen

Intervention Type DRUG

Other Intervention Names

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SAD: Cohorts 1 through 5 MAD: Cohorts 7 through 9 Matching placebo oral capsules (Cohorts 1 through 9)

Eligibility Criteria

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Inclusion Criteria

1. Is male or female, age 18 to 55 years, inclusive, at Screening.
2. Body mass index (BMI) between 18.5 and 35 kg/m2, inclusive, at Screening.
3. In good general health, determined by no clinically significant findings in the opinion of the Investigator from medical history, physical examination, 12-lead electrocardiogram (ECG), clinical laboratory findings, and vital signs at Screening and Day -1 or 1.
4. Hemoglobin, hematocrit, white blood cell count, absolute neutrophil count, and platelet count results within the laboratory reference range at Screening; subjects with Gilbert's disease with associated abnormalities of liver function tests are eligible for enrollment. Tests may be repeated at the discretion of the Investigator to confirm abnormalities.
5. Estimated glomerular filtration rate (eGFR) based on the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation of ≥ 80 mL/min/1.73m2 at Screening
6. Females of childbearing potential must practice effective contraception per national regulatory guidelines for clinical trials from Screening, throughout the study and for 28 days after the EOS visit.
7. Females of childbearing potential must have a negative pregnancy test at Screening and within 24 hours prior to dosing of study drug; for post-menopausal subjects, a blood sample will also be tested for follicle stimulating hormone (FSH) to confirm post-menopausal status (as verified by an FSH of ≥40). Surgically sterile females are eligible; however, proof via medical records will be required.
8. Males must agree to not donate sperm and/or to use condoms during sexual intercourse from the time of the first study drug administration and for 90 days following the last dose of study drug, and females must agree not to donate eggs from the time of the first study drug administration and for 60 days following the last dose of study drug.
9. Must be willing and able to comply with measures to avoid photosensitivity reactions (i.e., avoidance of outdoor sun exposure and tanning; consistent use of long sleeve shirts, long pants, hats, and sunglasses; consistent use of SPF 75 or greater sunscreen when outdoors) from Day 1 through Day 8 in Part 1 and through Day 29 in Part 2.
10. Able to provide informed consent.
11. Willing and able to comply with this protocol and be available for the entire duration of the study.

Exclusion Criteria

1. Any clinically significant underlying illness in the opinion of the Investigator.
2. Poor venous access.
3. Inability to ingest all capsules of a multi-capsule dose within 5 minutes of ingestion of the first capsule.
4. Prior exposure to ARN-75039.
5. Positive serology for hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV) at Screening; subjects with adequately treated HCV are eligible for enrollment.
6. Positive test for SARS-CoV-2 infection on Day -1.
7. Consumption of Seville oranges, grapefruit or grapefruit juice within 72 hours prior to Day 1 or during the study.
8. History of drug or alcohol abuse within 1 year of Screening in the opinion of the investigator, or a positive test for drugs of abuse or alcohol at Screening or Day -1.
9. Use of any prescription or over-the-counter (OTC) medications, including food supplements, vitamins, herbal medications (e.g., St. John's wort), and cannabis, with the exception of contraceptive medications and as needed (prn) acetaminophen or paracetamol (not exceeding 2 grams/day) within 7 days prior to study drug administration and through the EOS visit.
10. History of malignancy, except adequately treated basal cell carcinoma or in situ carcinoma of the uterine cervix.
11. Smoking greater than 20 cigarettes, cigars, cigarillos or E-cigarettes per week in the 3 months prior to study drug administration or during the study.
12. Any female who is pregnant or breastfeeding, or any female who is planning to become pregnant during the study and safety follow-up period.
13. Any reason or condition that, in the investigator's opinion, may compromise study participation, present a safety risk to the subject, or may confound the interpretation of the study results.
14. A QT duration corrected for heart rate by Fridericia's formula (QTcF) \> 450 millisecond (msec) based on either single or averaged QTcF values of triplicate ECGs obtained over a 3-minute interval (at Screening).
15. Blood product donation within 30 days before Screening.
16. Unwilling to consume a high-fat breakfast on study drug administration days.
17. Currently enrolled in another investigational device or drug study, or less than 30 days or 5 half-lives of the prior investigational agent (whichever is longer) or plans to enroll in another investigational device or drug study during the course of this study.

Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes