Influenza
Conditions
Brief summary
This is an early-stage clinical trial to determine a safe and effective dose for Tivoxavir Marboxil (TRX-100) in patients with mild to moderate Influenza. Participants will take a study drug as well as a standard therapy. A descriptive statistics will be used to present the study results.
Detailed description
This is a multicenter, open-label, randomized, Phase 2a study to evaluate the safety, tolerability, and pilot efficacy of different oral doses of TRX-100 in otherwise healthy participants with mild to moderate influenza. The study will also evaluate PK of TRX-100 and its major active metabolite, TRX-101, following single oral doses of TRX-100.
Interventions
CEN inhibitor, dosage form - capsules, dosing regimen - QD
Standard of Care Influenza Antiviral therapy
Sponsors
Study design
Intervention model description
Participants will be randomized into 3 study arms (30 participant per arm) to receive study drug and standard of care therapy
Eligibility
Inclusion criteria
* Participants with a diagnosis of influenza A or B virus infection * The time interval between the onset of symptoms and enrollment is 48 hours or less * Satisfactory baseline medical assessment by history and physical examination
Exclusion criteria
* Positive test results for SARS-CoV-2 infection and/or respiratory syncytial virus infection * Participants with concurrent infections requiring systemic antimicrobial therapy * Participants with any serious or chronic underlying disease likely to affect study outcomes at the Investigator's discretion.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of AE/SAE | up to Day 28 | Number of participants with Adverse Events (AEs), serious Adverse Events (SAEs) (including withdrawals due to AEs) |
| Incidence of abnormal laboratory tests results | Up to Day 28 | Number of participants with abnormal laboratory tests results |
| Incidence of abnormal clinically significant ECG results | Up to 28 days | — |
| Number of participants with abnormal physical examinations findings | Up to 28 days | — |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in the total score of 7 influenza symptoms | up to Day 15 | Seven symptoms (cough, sore throat, headache, nasal congestion, fever or chills, muscle or joint pain, and fatigue) will be assessed by the participant and recorded on a 4-point severity scale |
| Plasma Tmax | PK samples will be collected from Day 1 through Day 22. | Time to reach the maximum plasma concentration of TRX-100. |
| Incidence of influenza-related complications | Up to 28 days | — |
| Time to alleviation of influenza clinical symptoms (cough, sore throat, headache, nasal congestion, fever or chills, muscle or joint pain, and fatigue) | Up to 28 days | — |
| Time to resolution of fever to <37 C (axillary temperature) | Up to 28 days | — |
| Percentage of participants with resolution of fever | Up to 28 days | — |
| Time needed to return to pre-influenza health status based on assessment of activities score | Up to 28 Days | — |
| Plasma Cmax | PK samples will be collected from Day 1 through Day 22. | TRX-100 peak plasma concentration |
| Area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration (AUC0-last) of TRX-100 | PK samples will be collected from Day 1 through Day 22. | — |
| Area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration (AUC0-last) of TRX-101 | PK samples will be collected from Day 1 through Day 22. | — |
| Area under the plasma concentration-time curve from time zero to 24 hours post-dose (AUC0-24) | PK samples will be collected from Day 1 through Day 22. | Area under the plasma concentration-time curve from time zero to 24 hours post-dose for TRX-100. |
| Area under the plasma concentration-time curve from time zero extrapolated to infinity | PK samples will be collected from Day 1 through Day 22. | A measure of total drug exposure from administration extrapolated to infinite time, estimated for TRX-100. |
| Area under the concentration-time curve extrapolated to infinity | PK samples will be collected from Day 1 through Day 22. | A measure of total drug exposure from administration extrapolated to infinite time, estimated for TRX-101. |
| Terminal elimination half-life | PK samples will be collected from Day 1 through Day 22. | The time required for the plasma concentration of TRX-100 to decrease by 50% in the terminal elimination phase. |
| Terminal elimination rate constant | PK samples will be collected from Day 1 through Day 22 | The first-order rate constant associated with the terminal elimination phase of the plasma concentration-time curve for TRX-100. |
| Terminal elimination rate constant. | PK samples will be collected from Day 1 through Day 22 | The first-order rate constant associated with the terminal elimination phase of the plasma concentration-time curve for TRX-101. |
| Apparent oral clearance (CL/F) | PK samples will be collected from Day 1 through Day 22 | Apparent total clearance of TRX-100 from plasma following oral administration |
| Apparent volume of distribution during the terminal phase | PK samples will be collected from Day 1 through Day 22. | Apparent volume of distribution of TRX-100 during the terminal elimination phase following oral administration, calculated as Clearance (CL/F) divided by the elimination rate constant. |
| Area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration (AUC0-last) of TRX-101. | PK samples will be collected from Day 1 through Day 22. | — |
Countries
Australia