Food Effect on Pharmacokinetic Parameters of ABX464

Study Overview
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Brief Summary
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The goal of this study is to determine the impact of the food on the absorption of the ABX464.

Detailed Description
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This is a phase I, single-center, open-label, two-treatment, food-effect, randomized study in 40 healthy Caucasian male subjects in order to determine the impact of the food on the absorption of the ABX464. The two different treatments are the followings: Treatment A = 50mg of ABX464 (two 25mg capsules) /Fasted Treatment B = 50mg of ABX464 (two 25mg capsules) / Fed This study consists of two groups: Group 1 - single dose assessments, two-period, two-treatment, cross-over: 20 subjects will receive a single dose of 50mg of ABX464 in fed and fasted condition, separated by a wash-out period of at least 45 days. Group 2 - multiple dose assessments: 20 subjects will receive 50mg of ABX464 every 3 days during 10 days in fasted or fed condition.

Official Title
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An Open, Randomized Study, to Investigate the Potential Food Effect on Pharmacokinetic Parameters of ABX464 Administered Orally to Healthy Male Subjects

Conditions
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Healthy Volunteers

Intervention / Treatment
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* Drug: ABX464 Single dose
* Drug: ABX464 Repeated dose


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy Caucasian male subjects, 18-55 years of age Body Mass Index (BMI) of 17-28 kg/m². Certified as healthy by a comprehensive clinical assessment (detailed medical history and complete physical examination) Normal vital signs after 10 minutes resting in supine position: 90 mmHg < systolic blood pressure < 140 mmHg, 50 mmHg < diastolic blood pressure < 90 mmHg, 40 bpm < heart rate < 100 bpm. Normal automatic 12-lead ECG (incomplete right bundle branch block can be accepted) or judged as non clinically significant. Clinical laboratory tests (hematology, blood chemistry, and urinalysis) must be within normal limits or clinically acceptable to Investigator and Sponsor. Subjects must be willing to give written informed consent prior to study enrollment and be able to adhere to restrictions and examination schedules. Exclusion Criteria: Individuals with a history of any significant medical disorder which requires a physician's care (cardiovascular, pulmonary, gastro-intestinal, hepatic, renal, metabolic, hematological, neurologic, psychiatric, systemic, or infectious disease; any acute infectious disease or signs of acute illness) Frequent headaches and / or migraine, recurrent nausea and / or vomiting (more than twice a month). Presence or history of drug allergy, or allergic disease diagnosed and treated by a physician. Individuals who have a history of any clinically significant local or systemic infectious disease within 4 weeks prior to drug administration. Any individual who does not comply with the requirement that he should not have used any drugs other than paracetamol for at least 2 weeks prior to the study nor alcohol within 48 hours prior to drug administration. Individuals who are positive for hepatitis B virus, hepatitis C virus or HIV. History or presence of drug or alcohol abuse (positive urine drug screen, positive alcohol breath test). Smoking more than 5 cigarettes or equivalent / day, unable to stop smoking during the study. Excessive consumption of beverages with xanthine bases (> 4 cups or glasses / day). Subject who will likely be unable to eat entirely the standard high fat breakfast within the allocated time. Individuals who have donated blood within the preceding 3 months. Individuals who refuse to use an effective method of contraception from the beginning of the study and until 3 months after dosing. Individuals with forfeiture of freedom by an administrative or legal obligation or under guardianship

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Fasted Conditions<br>50mg of ABX464 (two 25mg capsules) /Fasted | Drug: ABX464 Single dose<br>* Two-periods, subjects received a single dose of 50mg of ABX464 in fed and fasted condition, separated by a wash-out period of at least 45 days.<br>Drug: ABX464 Repeated dose<br>* Subjects received 50mg of ABX464 every 3 days during 10 days in fasted or fed condition.<br>|
| Experimental: Fed Conditions<br>50mg of ABX464 (two 25mg capsules) /Fed | Drug: ABX464 Single dose<br>* Two-periods, subjects received a single dose of 50mg of ABX464 in fed and fasted condition, separated by a wash-out period of at least 45 days.<br>Drug: ABX464 Repeated dose<br>* Subjects received 50mg of ABX464 every 3 days during 10 days in fasted or fed condition.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area under the plasma concentration versus time curve (AUC) of single oral dose of 50mg of ABX464 in fed or fasted condition. |  | 45 days | 
| Peak Plasma Concentration (Cmax) of single oral dose of 50mg of ABX464 in fed or fasted condition. |  | 45 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area under the plasma concentration versus time curve (AUC) of repeated doses of 50 mg of ABX464 in fed or fasted conditions |  | 10 days | 
| Peak Plasma Concentration (Cmax) of repeated doses of 50 mg of ABX464 in fed or fasted conditions |  | 10 days | 
| Number of Subjects with treatment-related adverse events as assessed by CTCAE v4.0 |  | Up to 45 days |