This is a Phase 1 study to assess the the safety, tolerability and pharmacokinetics (PK) of AZD2373, following subcutaneous (SC) administration of single ascending doses (SAD) of AZD2373 in healthy male subjects of African ancestry.
This study will be conducted as a single-centre, randomised, placebo-controlled, single-blind study to assess the effect of AZD2373 following ascending dose sequential group design administrations to healthy male subjects of African ancestry. The study will include 6 single dose cohorts with the option to include 2 additional cohorts based on emerging data from preceding cohorts in the study. Approximately 48 male subjects aged 18 to 55 years at the time of informed consent (inclusive) will be randomized with the aim to have 8 subjects participate in each cohort. Within each cohort, 6 subjects will receive AZD2373 and 2 subjects will receive placebo. Sentinel dosing will be applied for each cohort and will be divided into 2 groups: * Group 1 (sentinel group): 1 active, 1 placebo; * Group 2 (the rest of the cohort): 5 active, 1 placebo. The safety data of up to 72 hours post-dose in Group 1 will be reviewed by the Principal Investigator (PI) before the subjects in Group 2 are dosed. The study will comprise: * A Screening Period of maximum 35 days; * A Treatment Period during which subjects will be resident at the Clinical Unit from the day before investigational medicinal product (IMP) administration (Day -1) until at least 72 hours after IMP administration; discharged from the Clinical Unit on Day 4; * Follow-up Visits on 1, 1.5, 2, 3, 4, 5, 6, and 8 weeks (Visits 3 to 10); and * A Final Follow up Visit 10 weeks after the last IMP dose. The visit occurring at 5 weeks post dose (Visit 5) is optional. The expected duration for any subject participating in the study is approximately 10 weeks (excluding an up to 28-day Screening Period).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
30
Randomised subjects will receive a single ascending dose of AZD2373 by SC injection (dose 1, dose 2, dose 3, dose 4, dose 5 and dose 6).
Randomised subjects will receive a single ascending dose of placebo (saline solution) by SC injection.
Research Site
Brooklyn, Maryland, United States
Number of subjects with adverse events and/or abnormal findings in vital signs, and/or clinical laboratory assessments and/or physical examination and/or electrocardiogram (ECG) evaluation and/or telemetry and/or injection site reactions
To assess adverse events as a variable of safety and tolerability of subcutaneous (SC) single ascending dose (SAD) administrations of AZD2373
Time frame: Screening Visit to final Follow-up Visit (Week 10 post last dose)
Area under plasma concentration-time curve from time zero extrapolated to infinity (AUC)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Area under the plasma concentration curve from time zero to the time of last quantifiable analyte concentration (AUClast)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Area under the plasma concentration-time curve from time zero to 72 hours after dosing [AUC(0-72)]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Area under the plasma concentration-time curve from time zero to 48 hours after dosing [AUC (0-48)]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Observed maximum plasma concentration (Cmax)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
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Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Time to reach peak or maximum observed concentration or response following drug administration (tmax)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Half-life associated with terminal slope (λz) of a semi logarithmic concentration-time curve (t½λz)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Apparent total body clearance of drug from plasma after extravascular administration [CL/F]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Apparent volume of distribution during the terminal phase after extravascular administration (Vz/F)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Mean residence time of the unchanged drug in the systemic circulation (MRT)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Terminal elimination rate constant (λz)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Time of the last quantifiable concentration [tlast Ae(0-last)]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Cumulative fraction (%) of dose excreted unchanged into the urine from time zero to the last measured time point [fe(0-last)]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Amount of analyte excreted into the urine from time t1 to t2 [Ae(t1-t2)]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Fraction of dose excreted unchanged into the urine from time t1 to t2 [fe(t1-t2)]
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Renal clearance of drug from plasma, estimated by dividing Ae(0-t) by AUC(0-t) where the 0-t interval is the same for both Ae and AUC (CLR)
To characterize the PK of AZD2373 following SC SAD administrations of AZD2373.
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)
Apolipoprotein L1 (APOL1) concentrations and change from baseline
To assess the effect of SC SAD administrations of AZD2373 on plasma concentrations of APOL1 protein
Time frame: Visit 2 to final Follow-up Visit (Week 10 post last dose)