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Phase 1 Study of PBTZ169

Open-label Prospective Noncomparative Study of Safety, Tolerability and Pharmacokinetics of PBTZ169 After Single and Multiple Fasting Oral Administration in Increasing Doses in Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03036163
Enrollment
40
Registered
2017-01-30
Start date
2016-01-31
Completion date
2016-11-30
Last updated
2020-04-13

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

Conditions

Tuberculosis

Keywords

Tuberculosis

Brief summary

Open-label prospective non-comparative safety, tolerability and pharmacokinetics ascending dose randomized cohort study of PBTZ169 (capsules 40 mg) in fasted healthy volunteers after single and multiple oral administration

Detailed description

Open-label prospective non-comparative safety, tolerability and pharmacokinetics ascending dose randomized cohort study of PBTZ169 (capsules 40 mg) in adult man healthy volunteers after single and multiple oral fasting administration. Study was conducted in one study center in Russian Federation. The study included two stages: * Stage 1 - single oral fasting administration with dose escalation in 5 cohorts 6 healthy man volunteers each in main groups (plus 1 back-up volunteer in every group); * Stage 2 - multiple oral fasting administration with dose escalation in 2 cohorts 6 healthy man volunteers each in main groups (plus 1 back-up volunteer in every group). Screening procedures for each cohort performed within 7 days before the drug prescription and after the end of administration period in previous cohort. Screening in cohorts 2 and 6 was started only after safety tolerability and PK data analysis of previous cohorts. All volunteers met the study inclusion/exclusion criteria was included successively into the following cohorts on Stage 1 (actual data): * Cohort 1 (C1) - 6 volunteers of the main group each of whom received once single dose of the drug - 1 capsule containing 40 mg of PBTZ169; * Cohort 2 (C2) - 6 volunteers of the main group each of whom received once 80 mg of PBTZ169 (2 capsules 40 mg); * Cohort 3 (C3) - 6 volunteers of the main group each of whom received once 160 mg of PBTZ169 (4 capsules 40 mg); * Cohort 4 (C4) - 6 volunteers of the main group each of whom received once 320 mg of PBTZ169 (8 capsules 40 mg); * Cohort 5 (C5) - 6 volunteers of the main group each of whom received once 640 mg of PBTZ169 (16 capsules 40 mg). On Stage 2 (actual data): * Cohort 6 (C6) - 5 volunteers of the main group each of whom received 320 mg of PBTZ169 (8 capsules 40 mg) once daily for 14 days; * Cohort 7 (C7) - 5 volunteers of the main group each of whom received 640 mg of PBTZ169 (16 capsules 40 mg) once daily for 14 days. Safety was assessed throughout the study. For every volunteer series of urine and venous blood samples was collected for the safety, tolerability and PK assessment of PBTZ169.

Interventions

DRUGPBTZ169 - 40 mg

40 mg of PBTZ169 (1 capsule) orally once in fasting state

DRUGPBTZ169 - 80 mg

80 mg of PBTZ169 (2 capsules 40 mg) orally once in fasting state

DRUGPBTZ169 - 160 mg

160 mg of PBTZ169 (4 capsules 40 mg) orally once in fasting state

DRUGPBTZ169 - 320 mg

320 mg of PBTZ169 (8 capsules 40 mg) orally once in fasting state

DRUGPBTZ169 - 640 mg

640 mg of PBTZ169 (16 capsules 40 mg) orally once in fasting state

DRUGPBTZ169 - 320 mg (multiple administration)

320 mg of PBTZ169 (8 capsules 40 mg) orally once per day in fasting state for 14 days

DRUGPBTZ169 - 640 mg (multiple administration)

640 mg of PBTZ169 (16 capsules 40 mg) orally once per day in fasting state for 14 days

Sponsors

OCT LLC
CollaboratorINDUSTRY
Nearmedic Plus LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

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

Inclusion criteria

1. Written informed consent received from a volunteer. 2. Man aged 18 to 45 years old, inclusive. 3. Body mass index of 18.5-25 kg/m2. 4. Verified diagnosis: healthy according to data of standard clinical, laboratory and instrumental examination methods performed at screening: * Absence of deviations of physical examination parameters and vital signs (systolic blood pressure - 100-129 mm Hg, inclusive; diastolic blood pressure - 70-89 mm Hg, inclusive; heart rate - 60-80 bpm, inclusive); * Absence of deviations of laboratory parameters (complete blood count, blood biochemistry, urinalysis and tests for HIV, HBV, HCV, syphilis); * Normal parameters of 12-lead ECG; * Normal results of photofluorographic or X-ray examination (the results received maximum 6 months before screening can be used). 5. Ability, according to investigators opinion, to comply with all requirements of the protocol. 6. Agreement to use double contraception method during the study participation and for 3 months after the test drug administration - combination of male condom with not less than one of the following methods: * female partner using hormonal contraception; * using aerosols, creams, suppositories and other agents containing spermicides; * female partner using intrauterine device

Exclusion criteria

1. Aggravated allergic history, including presence of at least one episode of drug allergy. 2. Chronic diseases of cardiovascular, bronchopulmonary, neuroendocrine systems, ENT and gastrointestinal, hepatic, renal, blood and cutaneous diseases. 3. Chronic diseases of eyes except for mild to moderate myopia, hypermetropia and astigmatism. 4. Gastrointestinal surgeries (except for appendectomy performed not less than 1 year before screening). 5. Acute infections within less than 4 weeks before screening. 6. Regular drug administration within less than 4 weeks before screening. 7. Regular administration or application (including topical) of hormonal drugs for more than 1 week within less than 45 days before the screening. 8. Administration of drugs exerting evident effects on hemodynamics, hepatic function, etc. (barbiturates, omeprazole, cimetidine, etc.) within less than 45 days before the screening. 9. Positive tests for narcotic and psychotropic agents. 10. Donation (450 mL of blood or plasma) within less than 3 months before the screening. 11. Intake of more than 10 U of alcohol per week (1 unit of alcohol is equivalent to 500 mL of beer, 200 mL of vine or 50 mL of strong alcoholic drink) or historical data on alcoholism, narcomania, drug abuse. 12. Mental illnesses. 13. Smoking within half a year before the screening. 14. Previous participation in this clinical study and withdrawal from it due to any reason. 15. Participation in other clinical studies of drugs within less than 6 months before the screening. 16. Planned conception or sperm donation during the study after the test drug administration or during 3 months after the date of drug administration.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Drug-related Adverse Events [Safety and Tolerability]14±1 days after the drug administration (up to last visit time point)The frequency of adverse events for which a relationship to the test drug PBTZ169 was noted

Secondary

MeasureTime frameDescription
Time to Reach Maximum Concentration (Tmax) of PBTZ169Up to 72 hours after the last drug administrationSingle dosing (Cohorts 1-5): data for the dosing day (Day 1). Multiple dosing (Cohorts 6, 7): data for days 1 (1st dose), 7 and 14 (last dose)
Area Under the Concentration-time Curve (AUC0-∞)Up to 72 hours after the last drug administrationIn the time interval from 0 to infinity
Plasma Half-life Time (T1/2) of PBTZ169Up to 72 hours after the last drug administrationSingle dosing (Cohorts 1-5): data for the dosing day (Day 1). Multiple dosing (Cohorts 6, 7): data for days 1 (1st dose), 7 and 14 (last dose)
Mean Plasma Retention Time (MRT) of PBTZ169Up to 72 hours after the last drug administration
Total (Plasma) Clearance (Cl) of PBTZ169Up to 72 hours after the last drug administrationThe Cl parameter was calculated using the following formulas: for Day 1: Cl=D/AUCinf; for Days 7 and 14: Clss=D/AUCτ
Volume of Distribution (Vd) of PBTZ169Up to 72 hours after the last drug administration
Elimination Constant (Kel) of PBTZ169Up to 72 hours after the last drug administrationData for doses 320 mg (Cohorts 4 and 6, total 11 volunters) & 640 mg (Cohorts 5 and 7, total 11 volunters) were combined
Peak Plasma Concentration (Сmax) of PBTZ169Up to 72 hours after the last drug administrationUp to 72 hours after the last drug administration: Single dosing (Cohorts 1-5): up to Day 4 (72 h after the dosing (Day 1)) Multiple dosing (Cohorts 6. 7): up to Day 17 (72 h after the last (14th) dosing)
Peak Steady State Plasma Concentration (Cmax,ss) of PBTZ169Up to 72 hours after the last drug administrationFor cohorts 6 and 7 (multiple administration) only
Time to Reach Maximum Steady State Concentration (Tmax,ss) of PBTZ169Up to 72 hours after the last drug administrationFor cohorts 6 and 7 (multiple administration) only
Area Under the Plasma Concentration Versus Time Curve in Steady State (AUCss) of PBTZ169Up to 72 hours after the last drug administrationFor cohorts 6 and 7 (multiple administration) only
Volume of Steady State Distribution (Vd,ss) of PBTZ169Up to 72 hours after the last drug administrationFor cohorts 6 and 7 (multiple administration) only
Area Under the Concentration-time Curve (AUC0-t)Up to 72 hours after the last drug administrationThe area under the concentration-time curve from 0 to last blood sampling
AUC0-t/AUC0-∞Up to 72 hours after the last drug administrationAUC0-t/AUC0-∞ ratio
Renal Clearance (Clren) of PBTZ169Up to 24 hours after the drug administrationThe renal clearance was calculated using values of the cumulative excretion in urine (from zero to 24 hours) and the area under the pharmacokinetic curve (from zero to 24 hours) (the ratio of the cumulative excretion to AUC0-24)

Participant flow

Participants by arm

ArmCount
Cohort 1
6 healthy volunteers each of whom received one single oral dose of PBTZ169 - 40 mg (1 capsule) PBTZ169 - 40 mg: 40 mg of PBTZ169 (1 capsule) orally once in fasting state
6
Cohort 2
6 healthy volunteers each of whom received one single oral dose of PBTZ169 - 80 mg (2 capsules) PBTZ169 - 80 mg: 80 mg of PBTZ169 (2 capsules 40 mg) orally once in fasting state
6
Cohort 3
6 healthy volunteers each of whom received one single oral dose of PBTZ169 - 160 mg (4 capsules) PBTZ169 - 160 mg: 160 mg of PBTZ169 (4 capsules 40 mg) orally once in fasting state
6
Cohort 4
6 healthy volunteers each of whom received one single oral dose of PBTZ169 - 320 mg (8 capsules) PBTZ169 - 320 mg: 320 mg of PBTZ169 (8 capsules 40 mg) orally once in fasting state
6
Cohort 5
6 healthy volunteers each of whom received one single oral dose of PBTZ169 - 640 mg (16 capsules) PBTZ169 - 640 mg: 640 mg of PBTZ169 (16 capsules 40 mg) orally once in fasting state
6
Cohort 6
5 healthy volunteers each of whom received а daily dose of 320 mg of PBTZ169 (8 capsules 40 mg) for 14 days PBTZ169 - 320 mg (multiple administration): 320 mg of PBTZ169 (8 capsules 40 mg) orally once per day in fasting state for 14 days
5
Cohort 7
5 healthy volunteers each of whom received a daily dose of 640 mg of PBTZ169 (16 capsules 40 mg) for 14 days PBTZ169 - 640 mg (multiple administration): 640 mg of PBTZ169 (16 capsules 40 mg) orally once per day in fasting state for 14 days
5
Total40

Baseline characteristics

CharacteristicCohort 1TotalCohort 7Cohort 6Cohort 5Cohort 4Cohort 3Cohort 2
Age, Continuous28.8 years
STANDARD_DEVIATION 5
27.6 years
STANDARD_DEVIATION 5.85
28.6 years
STANDARD_DEVIATION 6.5
22.6 years
STANDARD_DEVIATION 2.61
29.0 years
STANDARD_DEVIATION 7.18
31.2 years
STANDARD_DEVIATION 6.85
31.8 years
STANDARD_DEVIATION 6.55
27.8 years
STANDARD_DEVIATION 5.64
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
6 Participants40 Participants5 Participants5 Participants6 Participants6 Participants6 Participants6 Participants
Region of Enrollment
Russia
6 participants40 participants5 participants5 participants6 participants6 participants6 participants6 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
6 Participants40 Participants5 Participants5 Participants6 Participants6 Participants6 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 60 / 60 / 60 / 60 / 50 / 5
other
Total, other adverse events
2 / 62 / 61 / 60 / 60 / 60 / 51 / 5
serious
Total, serious adverse events
0 / 60 / 60 / 60 / 60 / 60 / 50 / 5

Outcome results

Primary

Incidence of Drug-related Adverse Events [Safety and Tolerability]

The frequency of adverse events for which a relationship to the test drug PBTZ169 was noted

Time frame: 14±1 days after the drug administration (up to last visit time point)

Population: Safety population: subjects who received at least one dose of PBTZ169. The population was used for the analysis and evaluation of the demographic and other baseline data and all safety parameters including AEs, physical examination, evaluation of the vital signs, previous and current therapy, ECG, all laboratory tests

ArmMeasureValue (NUMBER)
Cohort 1Incidence of Drug-related Adverse Events [Safety and Tolerability]2 participants
Cohort 2Incidence of Drug-related Adverse Events [Safety and Tolerability]2 participants
Cohort 3Incidence of Drug-related Adverse Events [Safety and Tolerability]1 participants
Cohort 4Incidence of Drug-related Adverse Events [Safety and Tolerability]0 participants
Cohort 5Incidence of Drug-related Adverse Events [Safety and Tolerability]0 participants
Cohort 6Incidence of Drug-related Adverse Events [Safety and Tolerability]1 participants
Cohort 7Incidence of Drug-related Adverse Events [Safety and Tolerability]1 participants
Secondary

Area Under the Concentration-time Curve (AUC0-∞)

In the time interval from 0 to infinity

Time frame: Up to 72 hours after the last drug administration

Population: PKA: C1-5 - SAD, C6-7 - MAD for 14 days

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 1349.25 ng*h/mlStandard Deviation 206.53
Cohort 2Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 1452.83 ng*h/mlStandard Deviation 148.58
Cohort 3Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 11096.36 ng*h/mlStandard Deviation 543.62
Cohort 4Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 11329.65 ng*h/mlStandard Deviation 250.95
Cohort 5Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 13028.04 ng*h/mlStandard Deviation 1286.88
Cohort 6Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 11450.21 ng*h/mlStandard Deviation 586.73
Cohort 6Area Under the Concentration-time Curve (AUC0-∞)Day 72747.33 ng*h/mlStandard Deviation 795.07
Cohort 6Area Under the Concentration-time Curve (AUC0-∞)Day 143410.12 ng*h/mlStandard Deviation 1204.07
Cohort 7Area Under the Concentration-time Curve (AUC0-∞)Day 73024.29 ng*h/mlStandard Deviation 726.15
Cohort 7Area Under the Concentration-time Curve (AUC0-∞)Dosing day / Day 11696.28 ng*h/mlStandard Deviation 993.13
Cohort 7Area Under the Concentration-time Curve (AUC0-∞)Day 144358.90 ng*h/mlStandard Deviation 649.33
Secondary

Area Under the Concentration-time Curve (AUC0-t)

The area under the concentration-time curve from 0 to last blood sampling

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureValue (MEAN)Dispersion
Cohort 1Area Under the Concentration-time Curve (AUC0-t)260.47 ng*h/mlStandard Deviation 119.06
Cohort 2Area Under the Concentration-time Curve (AUC0-t)381.17 ng*h/mlStandard Deviation 149.39
Cohort 3Area Under the Concentration-time Curve (AUC0-t)994.49 ng*h/mlStandard Deviation 462
Cohort 4Area Under the Concentration-time Curve (AUC0-t)1193.70 ng*h/mlStandard Deviation 212.53
Cohort 5Area Under the Concentration-time Curve (AUC0-t)2880.86 ng*h/mlStandard Deviation 1219.3
Secondary

Area Under the Plasma Concentration Versus Time Curve in Steady State (AUCss) of PBTZ169

For cohorts 6 and 7 (multiple administration) only

Time frame: Up to 72 hours after the last drug administration

Secondary

AUC0-t/AUC0-∞

AUC0-t/AUC0-∞ ratio

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureValue (NUMBER)
Cohort 1AUC0-t/AUC0-∞0.784 ratio
Cohort 2AUC0-t/AUC0-∞0.829 ratio
Cohort 3AUC0-t/AUC0-∞0.917 ratio
Cohort 4AUC0-t/AUC0-∞0.899 ratio
Cohort 5AUC0-t/AUC0-∞0.951 ratio
Secondary

Elimination Constant (Kel) of PBTZ169

Data for doses 320 mg (Cohorts 4 and 6, total 11 volunters) & 640 mg (Cohorts 5 and 7, total 11 volunters) were combined

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureValue (MEAN)Dispersion
Cohort 1Elimination Constant (Kel) of PBTZ1690.052 1/hStandard Deviation 0.01329
Cohort 2Elimination Constant (Kel) of PBTZ1690.077 1/hStandard Deviation 0.0266
Cohort 3Elimination Constant (Kel) of PBTZ1690.063 1/hStandard Deviation 0.0082
Cohort 4Elimination Constant (Kel) of PBTZ1690.066 1/hStandard Deviation 0.0212
Cohort 5Elimination Constant (Kel) of PBTZ1690.066 1/hStandard Deviation 0.0151
Cohort 6Elimination Constant (Kel) of PBTZ1690.066 1/hStandard Deviation 0.0212
Cohort 7Elimination Constant (Kel) of PBTZ1690.066 1/hStandard Deviation 0.0151
Secondary

Mean Plasma Retention Time (MRT) of PBTZ169

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 115.70 hStandard Deviation 6.12
Cohort 2Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 113.02 hStandard Deviation 4.26
Cohort 3Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 115.44 hStandard Deviation 3.88
Cohort 4Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 117.38 hStandard Deviation 3.68
Cohort 5Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 119.30 hStandard Deviation 4.16
Cohort 6Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 17.65 hStandard Deviation 0.61
Cohort 6Mean Plasma Retention Time (MRT) of PBTZ169Day 78.35 hStandard Deviation 0.75
Cohort 6Mean Plasma Retention Time (MRT) of PBTZ169Day 1416.78 hStandard Deviation 1.71
Cohort 7Mean Plasma Retention Time (MRT) of PBTZ169Day 78.45 hStandard Deviation 0.8
Cohort 7Mean Plasma Retention Time (MRT) of PBTZ169Dosing day / Day 17.70 hStandard Deviation 0.43
Cohort 7Mean Plasma Retention Time (MRT) of PBTZ169Day 1417.89 hStandard Deviation 2.25
Secondary

Peak Plasma Concentration (Сmax) of PBTZ169

Up to 72 hours after the last drug administration: Single dosing (Cohorts 1-5): up to Day 4 (72 h after the dosing (Day 1)) Multiple dosing (Cohorts 6. 7): up to Day 17 (72 h after the last (14th) dosing)

Time frame: Up to 72 hours after the last drug administration

Population: Pharmacokinetics analysis population (PKA): C1-5: sbjs who received PBTZ169 and had at least one measurement of PBTZ169 concentration; C6-7: sbjs who received PBTZ169 at least 7 times and had measurements of PBTZ169 concentration after the first and seventh administration.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 140.67 ng/mlStandard Deviation 15.28
Cohort 2Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 166.99 ng/mlStandard Deviation 33.81
Cohort 3Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 1135.85 ng/mlStandard Deviation 46.32
Cohort 4Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 1156.25 ng/mlStandard Deviation 65.54
Cohort 5Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 1349.67 ng/mlStandard Deviation 145.92
Cohort 6Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 1190.82 ng/mlStandard Deviation 37.51
Cohort 6Peak Plasma Concentration (Сmax) of PBTZ169Day 7243.22 ng/mlStandard Deviation 59.51
Cohort 6Peak Plasma Concentration (Сmax) of PBTZ169Day 14300.55 ng/mlStandard Deviation 82.24
Cohort 7Peak Plasma Concentration (Сmax) of PBTZ169Day 7278.64 ng/mlStandard Deviation 70.68
Cohort 7Peak Plasma Concentration (Сmax) of PBTZ169Day 14453.73 ng/mlStandard Deviation 111.85
Cohort 7Peak Plasma Concentration (Сmax) of PBTZ169Dosing day / Day 1250.54 ng/mlStandard Deviation 144.33
Secondary

Peak Steady State Plasma Concentration (Cmax,ss) of PBTZ169

For cohorts 6 and 7 (multiple administration) only

Time frame: Up to 72 hours after the last drug administration

Secondary

Plasma Half-life Time (T1/2) of PBTZ169

Single dosing (Cohorts 1-5): data for the dosing day (Day 1). Multiple dosing (Cohorts 6, 7): data for days 1 (1st dose), 7 and 14 (last dose)

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 114.306 hStandard Deviation 4.516
Cohort 2Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 110.182 hStandard Deviation 3.663
Cohort 3Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 116.147 hStandard Deviation 3.461
Cohort 4Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 116.447 hStandard Deviation 2.947
Cohort 5Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 118.175 hStandard Deviation 3.824
Cohort 6Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 112.40 hStandard Deviation 5.72
Cohort 6Plasma Half-life Time (T1/2) of PBTZ169Day 712.62 hStandard Deviation 5.02
Cohort 6Plasma Half-life Time (T1/2) of PBTZ169Day 1417.16 hStandard Deviation 4.35
Cohort 7Plasma Half-life Time (T1/2) of PBTZ169Day 714.16 hStandard Deviation 1.92
Cohort 7Plasma Half-life Time (T1/2) of PBTZ169Dosing day / Day 19.98 hStandard Deviation 2.2
Cohort 7Plasma Half-life Time (T1/2) of PBTZ169Day 1417.95 hStandard Deviation 2.5
Secondary

Renal Clearance (Clren) of PBTZ169

The renal clearance was calculated using values of the cumulative excretion in urine (from zero to 24 hours) and the area under the pharmacokinetic curve (from zero to 24 hours) (the ratio of the cumulative excretion to AUC0-24)

Time frame: Up to 24 hours after the drug administration

Population: PKA

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Renal Clearance (Clren) of PBTZ169Dosing day / Day 112.12 mL/hStandard Deviation 7.62
Cohort 2Renal Clearance (Clren) of PBTZ169Dosing day / Day 112.64 mL/hStandard Deviation 7.72
Cohort 3Renal Clearance (Clren) of PBTZ169Dosing day / Day 17.16 mL/hStandard Deviation 3.8
Cohort 4Renal Clearance (Clren) of PBTZ169Dosing day / Day 111.81 mL/hStandard Deviation 1.22
Cohort 5Renal Clearance (Clren) of PBTZ169Dosing day / Day 117.72 mL/hStandard Deviation 6.37
Cohort 6Renal Clearance (Clren) of PBTZ169Dosing day / Day 18.5 mL/hStandard Deviation 5.8
Cohort 6Renal Clearance (Clren) of PBTZ169Day 145.7 mL/hStandard Deviation 3.3
Cohort 7Renal Clearance (Clren) of PBTZ169Dosing day / Day 111.2 mL/hStandard Deviation 2.9
Cohort 7Renal Clearance (Clren) of PBTZ169Day 147.6 mL/hStandard Deviation 3.2
Secondary

Time to Reach Maximum Concentration (Tmax) of PBTZ169

Single dosing (Cohorts 1-5): data for the dosing day (Day 1). Multiple dosing (Cohorts 6, 7): data for days 1 (1st dose), 7 and 14 (last dose)

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureGroupValue (MEDIAN)
Cohort 1Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 12.50 h
Cohort 2Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 11.50 h
Cohort 3Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 12.00 h
Cohort 4Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 12.50 h
Cohort 5Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 11.50 h
Cohort 6Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 11.50 h
Cohort 6Time to Reach Maximum Concentration (Tmax) of PBTZ169Day 72.00 h
Cohort 6Time to Reach Maximum Concentration (Tmax) of PBTZ169Day 142.00 h
Cohort 7Time to Reach Maximum Concentration (Tmax) of PBTZ169Day 72.00 h
Cohort 7Time to Reach Maximum Concentration (Tmax) of PBTZ169Dosing day / Day 11.50 h
Cohort 7Time to Reach Maximum Concentration (Tmax) of PBTZ169Day 142.00 h
Secondary

Time to Reach Maximum Steady State Concentration (Tmax,ss) of PBTZ169

For cohorts 6 and 7 (multiple administration) only

Time frame: Up to 72 hours after the last drug administration

Secondary

Total (Plasma) Clearance (Cl) of PBTZ169

The Cl parameter was calculated using the following formulas: for Day 1: Cl=D/AUCinf; for Days 7 and 14: Clss=D/AUCτ

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1147.35 L/hStandard Deviation 71.97
Cohort 2Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1190.75 L/hStandard Deviation 52.79
Cohort 3Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1173.96 L/hStandard Deviation 69.47
Cohort 4Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1248.08 L/hStandard Deviation 47.99
Cohort 5Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1240.40 L/hStandard Deviation 89.12
Cohort 6Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1244.15 L/hStandard Deviation 74.982
Cohort 6Total (Plasma) Clearance (Cl) of PBTZ169Day 7197.223 L/hStandard Deviation 45.706
Cohort 6Total (Plasma) Clearance (Cl) of PBTZ169Day 14146.44 L/hStandard Deviation 45.573
Cohort 7Total (Plasma) Clearance (Cl) of PBTZ169Day 7310.74 L/hStandard Deviation 76.273
Cohort 7Total (Plasma) Clearance (Cl) of PBTZ169Dosing day / Day 1462.83 L/hStandard Deviation 197.223
Cohort 7Total (Plasma) Clearance (Cl) of PBTZ169Day 14224.79 L/hStandard Deviation 42.994
Secondary

Volume of Distribution (Vd) of PBTZ169

Time frame: Up to 72 hours after the last drug administration

Population: PKA

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Volume of Distribution (Vd) of PBTZ169Dosing day / Day 12762.47 LStandard Deviation 1052.08
Cohort 2Volume of Distribution (Vd) of PBTZ169Dosing day / Day 12949.95 LStandard Deviation 1652.24
Cohort 3Volume of Distribution (Vd) of PBTZ169Dosing day / Day 13903.25 LStandard Deviation 1354.34
Cohort 4Volume of Distribution (Vd) of PBTZ169Dosing day / Day 15801.14 LStandard Deviation 1006.47
Cohort 5Volume of Distribution (Vd) of PBTZ169Dosing day / Day 16359.85 LStandard Deviation 2861.493
Cohort 6Volume of Distribution (Vd) of PBTZ169Dosing day / Day 13924.74 LStandard Deviation 401.074
Cohort 6Volume of Distribution (Vd) of PBTZ169Day 72957.51 LStandard Deviation 1671.483
Cohort 6Volume of Distribution (Vd) of PBTZ169Day 143392.46 LStandard Deviation 2005.822
Cohort 7Volume of Distribution (Vd) of PBTZ169Day 76114.55 LStandard Deviation 1680.928
Cohort 7Volume of Distribution (Vd) of PBTZ169Dosing day / Day 16521.98 LStandard Deviation 2719.519
Cohort 7Volume of Distribution (Vd) of PBTZ169Day 144067.27 LStandard Deviation 2374.585
Secondary

Volume of Steady State Distribution (Vd,ss) of PBTZ169

For cohorts 6 and 7 (multiple administration) only

Time frame: Up to 72 hours after the last drug administration

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