The purpose of this study is to evaluate the safety and pharmacokinetics of redosing EXPAREL via local subcutaneous infiltration in healthy volunteers.
During Dosing Period 1, blood samples for pharmacokinetic (PK) analysis will be obtained predose (15 minutes prior to administration of EXPAREL) through 12 hours postdose (i.e., at 15 and 30 minutes, 1, 2, 4, 8, and 12 hours) for Cohort 4; through 36 hours postdose (i.e., at 15 and 30 minutes, 1, 2, 4, 8, 12, 24, and 36 hours) for Cohort 3; through 60 hours postdose (i.e., at 15 and 30 minutes, 1, 2, 4, 8, 12, 24, 36, 48, and 60 hours) for Cohort 2; and through 72 hours postdose (i.e., at 15 and 30 minutes, 1, 2, 4, 8, 12, 24, 36, 48, 60, and 72 hours) for Cohorts 1 and 5. During Dosing Period 2 (Cohorts 2, 3, and 4 only), blood samples for PK analysis will be obtained predose (15 minutes prior to administration of EXPAREL) through 72 hours postdose (i.e., at 15 and 30 minutes, 1, 2, 4, 8, 12, 24, 36, 48, 60, and 72 hours).
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
60
Medpace Clinical Pharmacology Unit
Cincinnati, Ohio, United States
Maximum Plasma Concentration (Cmax)
Time frame: Period(P)1 all cohorts (C) 15 m in pre, 15,30m, 1,2,34,8,12h postdose. C3: +24, 36 h postdose. C2: C3+48,60h postdose; C1 and C5: C2+72h postdose; P2: C2,3,4 only: 15m pre, 1,2,4,8,12,24,36,48,60,72h postdose. Final at D14- all subjects
Time to Maximum Concentration (Tmax)
Time frame: Period(P)1 all cohorts 15 m in pre, 15,30m, 1,2,34,8,12h postdose. C3: +24, 36 h postdose. C2: C3+48,60h postdose; C1 and C5: C2+72h postdose; P2: C2,3,4 only: 15m pre, 1,2,4,8,12,24,36,48,60,72h postdose. Final at D14- all subjects
Area Under the Plasma Concentration Time Curve From Time 0 to the Time of the Last Quantifiable Concentration [AUC(0-last)]
Time frame: Period(P)1 all cohorts (C) 15 m in pre, 15,30m, 1,2,34,8,12h postdose. C3: +24, 36 h postdose. C2: C3+48,60h postdose; C1 and C5: C2+72h postdose; P2: C2,3,4 only: 15m pre, 1,2,4,8,12,24,36,48,60,72h postdose. Final at D14- all subjects
Apparent Terminal Elimination Half-life
Time frame: Period(P)1 all cohorts 15 m in pre, 15,30m, 1,2,34,8,12h postdose. C3: +24, 36 h postdose. C2: C3+48,60h postdose; C1 and C5: C2+72h postdose; P2: C2,3,4 only: 15m pre, 1,2,4,8,12,24,36,48,60,72h postdose. Final at D14- all subjects
The Apparent Terminal Elimination Rate Constant (λz)
Time frame: Period(P)1 all cohorts 15 m in pre, 15,30m, 1,2,34,8,12h postdose. C3: +24, 36 h postdose. C2: C3+48,60h postdose; C1 and C5: C2+72h postdose; P2: C2,3,4 only: 15m pre, 1,2,4,8,12,24,36,48,60,72h postdose. Final at D14- all subjects
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