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Safety and Pharmacokinetics of UV-4B Solution Administered Orally as Multiple Ascending Doses to Healthy Subjects

Randomized, Double-blind, Placebo-controlled, Multiple Ascending Dose Study to Determine the Safety, Tolerability and Pharmacokinetics of UV-4B Solution Administered Orally in Healthy Subjects

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02696291
Enrollment
7
Registered
2016-03-02
Start date
2016-05-27
Completion date
2017-03-02
Last updated
2024-03-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Viral Infection

Keywords

Dengue, Arbovirus Infections, Flaviviridae Infections, Flavivirus Infections, Hemorrhagic Fevers, Viral, RNA Virus Infections, Virus Diseases, Pharmaceutical Solutions, Pharmacologic Actions, Therapeutic Uses

Brief summary

The purpose of this study is to evaluate the safety and pharmacokinetics of UV-4B oral solution when administered to healthy subjects three times a day (TID) for 7 days.

Detailed description

This is a phase 1, randomized, double-blind, placebo-controlled multiple-ascending dose study to evaluate the safety and pharmacokinetics of UV-4B oral solution when administered to healthy subjects TID for 7 days. Three cohorts of 8 subjects each (6 active, 2 placebo) are planned and up to 2 additional cohorts may be added pending safety review of the initial cohorts. Safety review will occur after each cohort. Safety is evaluated through Day 15 on the basis of adverse event (AE) monitoring, clinical laboratory testing (hematology, serum chemistry, coagulation, urinalysis), vital signs, physical examinations (PE), electrocardiograms (ECG), and fecal occult blood testing. Blood samples are collected at specified intervals up to Day 10 for pharmacokinetic assessment.

Interventions

DRUGUV-4B 30 mg oral solution

UV-4B 30 mg oral solution administered TID (every 8 ± 0.5 hours) for 7 days

DRUGUV-4B 75 mg oral solution

UV-4B 75 mg oral solution administered TID (every 8 ± 0.5 hours) for 7 days

DRUGUV-4B 150 mg oral solution

UV-4B 150 mg oral solution administered TID (every 8 ± 0.5 hours) for 7 days

DRUGUV-4B X mg (dose to be determined) oral solution

UV-4B X mg (dose to be determined) oral solution administered TID (every 8 ± 0.5 hours) for 7 days

DRUGUV-4B Y mg (dose to be determined) oral solution

UV-4B Y mg (dose to be determined) oral solution administered TID (every 8 ± 0.5 hours) for 7 days

DRUGPlacebo

Placebo oral solution administered TID (every 8 ± 0.5 hours) for 7 days

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
CollaboratorNIH
Emergent BioSolutions
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Nonsmoking, healthy male or female subject aged 18 to 45 years, inclusive. * Female subject is not pregnant and not lactating. * (Female subjects only who are not postmenopausal or sterile) agreement to use hormonal contraception OR intrauterine device PLUS barrier contraception (condom or occlusive cap such as a diaphragm or surgical vault cap) AND spermicidal foam/gel/cream/suppository starting at least 14 days before the first dose and continuing for at least 3 months after the last dose. * (Male subjects only) agreement to use barrier contraception during sexual intercourse and to also refrain from sperm donation from the first day of dosing until 3 months after the last dose of the study product. * Body weight within 60 to 90 kg, inclusive, and body mass index between 18 to 32 kg/m², inclusive. * Agreement to avoid strenuous exercise starting 4 days before the start of dosing through the period of confinement in the clinical unit and for at least 96 hours before the follow-up visits.

Exclusion criteria

* History of allergy to drugs in the iminosugar class. * Treatment with any investigational products or therapies within 30 days (or 5 half-lives, whichever is greater) before the first day of dosing. * Current or past history of disease/dysfunction of the pulmonary, cardiovascular, endocrine, hematologic, neurological, immune, gastrointestinal genitourinary, or other body system. * Abnormalities on physical examination suggestive of conditions that may pose an increased risk to the subject; abnormal electrocardiogram results (excluding benign conditions); and Grade 1 or higher abnormalities in vital signs at screening and Grade 2 or higher abnormalities in vital signs at check-in based on a modified version of the FDA Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials. * Clinical laboratory tests outside the normal range at screening and Grade 2 or higher at check-in to the clinical unit. * Creatinine clearance \< 90 mL/min (based on Cockcroft-Gault equation). * Proteinuria greater than or equal to 1+. * Any known or expected risk of bleeding. * Scheduled surgical procedure during study participation. * History of alcohol and/or drug abuse within 1 year prior to dosing and/or a positive urine drug screen for substances of abuse at screening or check-in. Urine alcohol above 50 mg/dL. * Plasma or blood donation within 30 days before the first day of dosing or intention to donate within 30 days after the final day of dosing. * Treatment with any medication, either prescription or nonprescription, including dietary supplements or herbal medications, within 14 days before dosing (within 30 days before dosing for hepatic or renal clearance-altering agents) and is unable to refrain from any medication during the study period. Exceptions are acetaminophen (not more than 2 g/day), vitamin products at recommended daily doses or hormonal birth control. * Positive serology test for HIV antibodies, hepatitis B surface antigen, or hepatitis C virus antibody at screening. * History of relevant food allergies (ie, eggs or other components of standard clinic meals) or unwilling to comply with diet restrictions. * Psychological and/or emotional problems which would render the informed consent invalid, or limit the ability of the subject to comply with the study requirements; * Concurrent enrollment in any other clinical trial within 30 days.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Reporting Treatment-emergent Adverse Events (TEAEs) by GroupFrom the time of first dosing on Day 1 through the Day 15 final follow-up visitThe incidence of TEAEs spontaneously reported by subjects or elicited during examination is reported by dose group. Subjects having multiple TEAEs are counted only once.
Number of Subjects Reporting Serious Adverse Events (SAEs) by GroupFrom the time of first dosing on Day 1 through the Day 15 final follow-up visitThe incidence of SAEs spontaneously reported by subjects or elicited during examination is reported by dose group. Subjects having multiple SAEs are counted only once.
Number of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by GroupFrom the time of first dosing on Day 1 through the Day 15 final follow-up visitClinical laboratory abnormalities are presented as the total of Grade 1 (mild) through Grade 4 (potentially life-threatening) abnormalities according to criteria adapted from the Food and Drug Administration (FDA) Guidance for Industry, Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials (September 2007) and the Division of Microbiology and Infectious Diseases (DMID) Adult Toxicity Table (November 2007). Within each parameter, subjects having multiple abnormalities are counted only once.

Secondary

MeasureTime frameDescription
Time of Maximum Plasma Concentration (Tmax)Day 1, Day 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of tmax are derived from individual subject plasma concentration-time data. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, and 8 hrs after the first dose on Day 1; and at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Area Under the Concentration-time Curve From Time Zero (Predose) to Time of the Last Quantifiable Concentration After the Last Dose [AUC(0-last)]Day 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of AUC(0-last) are derived from individual subject plasma concentration-time data, calculated using the linear trapezoidal rule for increasing concentrations and the logarithmic rule for decreasing concentrations. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Total Daily Exposure at Steady State: Area Under the Concentration-time Curve From Time Zero (Predose) Until 24 Hours After the Last Dose [AUC(0-24)]Day 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of AUC(0-24) are derived from individual subject plasma concentration-time data, calculated as AUC(0-8) x 3 (Day 7 last dose only). Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Area Under the Concentration-time Curve From Time Zero (Predose) Until 8 Hours After the Final Dose [AUC(0-8)]Day 1, Day 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of AUC(0-8) are derived from individual subject plasma concentration-time data, calculated using the linear trapezoidal rule for increasing concentrations and the logarithmic rule for decreasing concentrations. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, and 8 hrs after the first dose on Day 1; and at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Number of Subjects With Outlying Vital Sign Results by GroupFrom the time of first dosing on Day 1 through the Day 15 final follow-up visitVital signs of blood pressure (BP), pulse, respiratory rate, and oral temperature were taken after being supine for 10 minutes. Orthostatic vital signs (BP, pulse) were taken after 2 minutes standing. Vital sign results are presented as the number of subjects having Grade 1 (mild) through Grade 4 (potentially life-threatening) abnormalities according to criteria adapted from the FDA Guidance for Industry, Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials (September 2007), or having abnormal orthostatic change (standing minus supine result). Within each parameter, subjects having multiple abnormalities are counted only once.
Apparent Volume of Distribution of UV-4 During the Terminal Phase (Vz/F) After Multiple DosesDay 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of Vz/F are derived from individual subject plasma concentration-time data, calculated as CL/F divided by λz. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Apparent Terminal Half Life (t1/2)Day 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of t1/2 are derived from individual subject plasma concentration-time data, calculated as ln2/λz. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Accumulation Ratio (AR)Day 7Accumulation Ratio (AR) Day 1/Day 7
Apparent Systemic Clearance (CL/F) at Steady StateDay 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of CL/F are derived from individual subject plasma concentration-time data, calculated as dose (free-base equivalent) divided by AUC(0-8). Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.
Number of Subjects With 12-lead Electrocardiogram (ECG) Abnormalities Postdose by GroupFrom the time of first dosing on Day 1 through the Day 15 final follow-up visitECGs (ventricular heart rate, wave intervals - PR, QRS, QT, QTcF) were recorded in a supine position (for at least 10 minutes). Baseline was calculated from the average of the triplicate ECGs on Day 1 predose. Within each parameter, subjects having multiple abnormalities are counted only once.
Maximum Plasma Concentration (Cmax)Day 1, Day 7Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of Cmax are derived from individual subject plasma concentration-time data. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, and 8 hrs after the first dose on Day 1; and at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Countries

United States

Participant flow

Recruitment details

Healthy subjects were recruited from a phase 1 clinical research unit. Recruitment was initiated on 27 May 2016 and the last subject completed the final study visit for Cohort 1 on 02 March 2017.

Participants by arm

ArmCount
Cohort 1 - 30 mg UV-4B
Subjects receiving UV-4B 30 mg oral solution TID (every 8 ± 0.5 hours) for 7 days
5
Cohort 1 - Placebo
Subjects receiving placebo TID (every 8 ± 0.5 hours) for 7 days
2
Total7

Baseline characteristics

CharacteristicCohort 1 - 30 mg UV-4BCohort 1 - PlaceboTotal
Age, Continuous31.2 years
STANDARD_DEVIATION 8.3
41.5 years
STANDARD_DEVIATION 4.9
34.1 years
STANDARD_DEVIATION 8.7
Body Mass Index26.0 kg/m^2
STANDARD_DEVIATION 1
28.4 kg/m^2
STANDARD_DEVIATION 2.3
26.7 kg/m^2
STANDARD_DEVIATION 1.7
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants1 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants1 Participants4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants2 Participants6 Participants
Sex: Female, Male
Female
3 Participants2 Participants5 Participants
Sex: Female, Male
Male
2 Participants0 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 50 / 2
other
Total, other adverse events
5 / 52 / 2
serious
Total, serious adverse events
1 / 50 / 2

Outcome results

Primary

Number of Subjects Reporting Serious Adverse Events (SAEs) by Group

The incidence of SAEs spontaneously reported by subjects or elicited during examination is reported by dose group. Subjects having multiple SAEs are counted only once.

Time frame: From the time of first dosing on Day 1 through the Day 15 final follow-up visit

Population: Safety Population: all subjects who received at least one dose of study product or placebo.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 - 30 mg UV-4BNumber of Subjects Reporting Serious Adverse Events (SAEs) by Group1 Participants
Cohort 1 - PlaceboNumber of Subjects Reporting Serious Adverse Events (SAEs) by Group0 Participants
Primary

Number of Subjects Reporting Treatment-emergent Adverse Events (TEAEs) by Group

The incidence of TEAEs spontaneously reported by subjects or elicited during examination is reported by dose group. Subjects having multiple TEAEs are counted only once.

Time frame: From the time of first dosing on Day 1 through the Day 15 final follow-up visit

Population: Safety Population: all subjects who received at least one dose of study product or placebo.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 - 30 mg UV-4BNumber of Subjects Reporting Treatment-emergent Adverse Events (TEAEs) by Group5 Participants
Cohort 1 - PlaceboNumber of Subjects Reporting Treatment-emergent Adverse Events (TEAEs) by Group2 Participants
Primary

Number of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group

Clinical laboratory abnormalities are presented as the total of Grade 1 (mild) through Grade 4 (potentially life-threatening) abnormalities according to criteria adapted from the Food and Drug Administration (FDA) Guidance for Industry, Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials (September 2007) and the Division of Microbiology and Infectious Diseases (DMID) Adult Toxicity Table (November 2007). Within each parameter, subjects having multiple abnormalities are counted only once.

Time frame: From the time of first dosing on Day 1 through the Day 15 final follow-up visit

Population: Safety Population: all subjects who received at least one dose of study product or placebo.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by GroupAny ≥ Grade 1 result5 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 activated partial thromboplastin time1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 hemoglobin decreased5 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 leukocytes decreased1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 magnesium decreased0 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 prothrombin time increased4 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 sodium decreased1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 urine erythrocytes (present)4 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 urine erythrocytes (present)2 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by GroupAny ≥ Grade 1 result2 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 magnesium decreased1 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 activated partial thromboplastin time0 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 sodium decreased0 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 hemoglobin decreased2 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 prothrombin time increased1 Participants
Cohort 1 - PlaceboNumber of Subjects With Clinical Laboratory Abnormalities of Toxicity Grade 1 or Higher by Group≥ Grade 1 leukocytes decreased0 Participants
Secondary

Accumulation Ratio (AR)

Accumulation Ratio (AR) Day 1/Day 7

Time frame: Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BAccumulation Ratio (AR)1.3 RatioGeometric Coefficient of Variation 5.8
Secondary

Apparent Systemic Clearance (CL/F) at Steady State

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of CL/F are derived from individual subject plasma concentration-time data, calculated as dose (free-base equivalent) divided by AUC(0-8). Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BApparent Systemic Clearance (CL/F) at Steady State23.6 L/hGeometric Coefficient of Variation 3.7
Secondary

Apparent Terminal Half Life (t1/2)

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of t1/2 are derived from individual subject plasma concentration-time data, calculated as ln2/λz. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureValue (MEDIAN)
Cohort 1 - 30 mg UV-4BApparent Terminal Half Life (t1/2)8.1 h
Secondary

Apparent Volume of Distribution of UV-4 During the Terminal Phase (Vz/F) After Multiple Doses

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of Vz/F are derived from individual subject plasma concentration-time data, calculated as CL/F divided by λz. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BApparent Volume of Distribution of UV-4 During the Terminal Phase (Vz/F) After Multiple Doses246 LGeometric Coefficient of Variation 30.6
Secondary

Area Under the Concentration-time Curve From Time Zero (Predose) to Time of the Last Quantifiable Concentration After the Last Dose [AUC(0-last)]

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of AUC(0-last) are derived from individual subject plasma concentration-time data, calculated using the linear trapezoidal rule for increasing concentrations and the logarithmic rule for decreasing concentrations. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BArea Under the Concentration-time Curve From Time Zero (Predose) to Time of the Last Quantifiable Concentration After the Last Dose [AUC(0-last)]1800 ng*hr/mLGeometric Coefficient of Variation 14.2
Secondary

Area Under the Concentration-time Curve From Time Zero (Predose) Until 8 Hours After the Final Dose [AUC(0-8)]

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of AUC(0-8) are derived from individual subject plasma concentration-time data, calculated using the linear trapezoidal rule for increasing concentrations and the logarithmic rule for decreasing concentrations. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, and 8 hrs after the first dose on Day 1; and at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 1, Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BArea Under the Concentration-time Curve From Time Zero (Predose) Until 8 Hours After the Final Dose [AUC(0-8)]Day 1 AUC(0-8)965 ng*hr/mLGeometric Coefficient of Variation 8.7
Cohort 1 - 30 mg UV-4BArea Under the Concentration-time Curve From Time Zero (Predose) Until 8 Hours After the Final Dose [AUC(0-8)]Day 7 AUC(0-8)1270 ng*hr/mLGeometric Coefficient of Variation 3.7
Secondary

Maximum Plasma Concentration (Cmax)

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of Cmax are derived from individual subject plasma concentration-time data. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, and 8 hrs after the first dose on Day 1; and at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 1, Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BMaximum Plasma Concentration (Cmax)Day 1 Cmax291 ng/mLGeometric Coefficient of Variation 15.8
Cohort 1 - 30 mg UV-4BMaximum Plasma Concentration (Cmax)Day 7 Cmax285 ng/mLGeometric Coefficient of Variation 5.1
Secondary

Number of Subjects With 12-lead Electrocardiogram (ECG) Abnormalities Postdose by Group

ECGs (ventricular heart rate, wave intervals - PR, QRS, QT, QTcF) were recorded in a supine position (for at least 10 minutes). Baseline was calculated from the average of the triplicate ECGs on Day 1 predose. Within each parameter, subjects having multiple abnormalities are counted only once.

Time frame: From the time of first dosing on Day 1 through the Day 15 final follow-up visit

Population: Safety Population: all subjects who received at least one dose of study product or placebo.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 - 30 mg UV-4BNumber of Subjects With 12-lead Electrocardiogram (ECG) Abnormalities Postdose by GroupAny ECG abnormality2 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With 12-lead Electrocardiogram (ECG) Abnormalities Postdose by GroupPR > 220 ms2 Participants
Cohort 1 - PlaceboNumber of Subjects With 12-lead Electrocardiogram (ECG) Abnormalities Postdose by GroupAny ECG abnormality0 Participants
Cohort 1 - PlaceboNumber of Subjects With 12-lead Electrocardiogram (ECG) Abnormalities Postdose by GroupPR > 220 ms0 Participants
Secondary

Number of Subjects With Outlying Vital Sign Results by Group

Vital signs of blood pressure (BP), pulse, respiratory rate, and oral temperature were taken after being supine for 10 minutes. Orthostatic vital signs (BP, pulse) were taken after 2 minutes standing. Vital sign results are presented as the number of subjects having Grade 1 (mild) through Grade 4 (potentially life-threatening) abnormalities according to criteria adapted from the FDA Guidance for Industry, Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials (September 2007), or having abnormal orthostatic change (standing minus supine result). Within each parameter, subjects having multiple abnormalities are counted only once.

Time frame: From the time of first dosing on Day 1 through the Day 15 final follow-up visit

Population: Safety Population: all subjects who received at least one dose of study product or placebo.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine systolic BP ≤ 89 mmHg1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 respiratory rate ≥ 17 breaths/min2 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine pulse ≤ 54 bpm (if baseline > 60)1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by GroupAny orthostatic change5 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine pulse ≤ 50 bpm (if baseline ≤ 60)1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by GroupOrthostatic change in diastolic BP ≤ -10 mmHg1 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine pulse ≥ 101 bpm0 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by GroupOrthostatic change in pulse > 30 bpm5 Participants
Cohort 1 - 30 mg UV-4BNumber of Subjects With Outlying Vital Sign Results by GroupAny ≥ Grade 1 result5 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by GroupOrthostatic change in pulse > 30 bpm1 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by GroupAny ≥ Grade 1 result2 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine systolic BP ≤ 89 mmHg0 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine pulse ≤ 50 bpm (if baseline ≤ 60)0 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine pulse ≤ 54 bpm (if baseline > 60)0 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 supine pulse ≥ 101 bpm1 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by Group≥ Grade 1 respiratory rate ≥ 17 breaths/min1 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by GroupAny orthostatic change2 Participants
Cohort 1 - PlaceboNumber of Subjects With Outlying Vital Sign Results by GroupOrthostatic change in diastolic BP ≤ -10 mmHg1 Participants
Secondary

Time of Maximum Plasma Concentration (Tmax)

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of tmax are derived from individual subject plasma concentration-time data. Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, and 8 hrs after the first dose on Day 1; and at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 1, Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1 - 30 mg UV-4BTime of Maximum Plasma Concentration (Tmax)Day 1 tmax0.7 hStandard Deviation 0.2
Cohort 1 - 30 mg UV-4BTime of Maximum Plasma Concentration (Tmax)Day 7 tmax1.0 hStandard Deviation 0.4
Secondary

Total Daily Exposure at Steady State: Area Under the Concentration-time Curve From Time Zero (Predose) Until 24 Hours After the Last Dose [AUC(0-24)]

Plasma concentrations of UV-4 are determined by means of high performance liquid chromatography/tandem mass spectrometric assay. Values of AUC(0-24) are derived from individual subject plasma concentration-time data, calculated as AUC(0-8) x 3 (Day 7 last dose only). Blood collected at 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 5, 6, 8, 10, 12, and 14 hrs after the final dose on Day 7.

Time frame: Day 7

Population: Pharmacokinetic Population: all subjects who received study product, had measurable values, and completed scheduled postdose pharmacokinetic measurements without protocol deviations or events thought to significantly affect the pharmacokinetics of the drug.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 - 30 mg UV-4BTotal Daily Exposure at Steady State: Area Under the Concentration-time Curve From Time Zero (Predose) Until 24 Hours After the Last Dose [AUC(0-24)]3810 ng*hr/mLGeometric Coefficient of Variation 3.7

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026