Evaluation of Safety, Pharmacokinetics and Pharmacodynamics of EXPAREL® Administered Via a Single Intrathecal Injection to Healthy Volunteers

Healthy Clinical Trial

Official title: Phase 1, Randomized, Double-Blind, Active and Placebo Controlled, Dose Escalation Study to Evaluate the Safety, Pharmacokinetics and Pharmacodynamics of EXPAREL® Administered Via a Single Intrathecal Injection to Healthy Volunteers.

Status Terminated

Clinical Trial Summary

Primary objective: To assess the safety and tolerability of EXPAREL® administered as a single intrathecal injection in healthy volunteers

Secondary objective: To characterize the pharmacokinetic (PK) and pharmacodynamic (PD) profile of EXPAREL® administered as a single intrathecal injection in healthy volunteers

Clinical Trial Description

This is a Phase-1, single center, randomized, double-blind, active and placebo-controlled study in approximately 40 healthy adult subjects.

On Day 1, eligible subjects will be randomized in blocks of 5, in a ratio of 3:1:1 to receive EXPAREL® or bupivacaine or placebo (saline) injection, respectively. Starting with treatment Cohort 1, healthy volunteers will be randomized to the 3 treatment arms within cohorts. Each cohort will consist of 10 subjects (6 EXPAREL®, 2 bupivacaine and 2 placebo). In each cohort, all 10 subjects in each cohort will receive cerebrospinal fluid (CSF) taps. Within the EXPAREL® arm, subjects will be randomized 2:1 with 4 subjects undergoing CSF tap and 2 subjects not undergoing CSF tap in each cohort. Subjects who are not undergoing CSF tap, will still be injected with needles without draw of CSF to prevent subject bias. Such a randomization will allow for characterization of the complete pharmacodynamics profile of the drug without risk of drug removal in the CSF. For those subjects randomized to the EXPAREL® arm - the dose of EXPAREL® will be determined by the cohort. Starting at 1 mL (13.3 mg) for Cohort 1, the volume of EXPAREL® will be increased by 1 mL in each subsequent cohort for a maximum of 4 mL (53.2 mg). The decision to proceed to the next cohort will be made following a full review of the safety, PK, and PD (sensory and motor) data from current completed cohort(s). All subjects will remain in the EPRU for 5 days after drug administration and will be discharged on Day 6. Subjects will be instructed to return for a follow up visit on Day 9. Adverse events (AEs) and serious adverse events (SAEs) will be recorded from the time of consent through 30 days after drug administration. ;

Related Conditions & MeSH terms

• Healthy

• NCT number: NCT04173611
• Study type: Interventional
• Source: Pacira Pharmaceuticals, Inc
• Status: Terminated
• Phase: Phase 1
• Start date: June 8, 2020
• Completion date: December 7, 2020