The primary purpose of the study is to evaluate the pharmacokinetics (what the body does to the medication) of intranasally (through the nose) administered esketamine in healthy participants.
This is a single-center study with 3 cohorts (groups). Approximately 58 participants will be enrolled in this study. In Cohort 1, approximately 16 participants will be enrolled for up to 78 days and they will receive 4 different single-dose regimens (Treatment A, B, C and D) of intranasal spray of esketamine solution in a crossover manner (participants will be switched from one single-dose regimen to another) and in an open label manner (both the investigator and the participant know the intervention received by the participant). In Cohort 2, approximately 14 participants will be enrolled for up to 35 days and they will receive 1 regimen of intranasal esketamine (Treatment D) in an open label manner. In Cohort 3, approximately 28 participants will be enrolled and they will be randomly assigned to receive either Treatment E (intranasal esketamine spray) or Treatment F (intranasal placebo spray) in a double blind manner (both the investigator and the participant do not know the intervention received by the participant). Safety evaluations will include assessment of adverse events, targeted nasal examinations, laboratory tests, electrocardiogram, physical examination, pulse oximetery, and vital signs.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
58
1 spray of 14 percent of esketamine solution (14 mg of esketamine per 100 microlitre) will be administered intranasally by nasal spray pump in each nostril once (Treatment A-total dose: 28 mg), twice with 5 minutes interval (Treatment B-total dose: 56 mg), thrice with 5 minutes interval between each repeated sprays (Treatment C-total dose: 84 mg), thrice with 10 minutes interval between each repeated sprays (Treatment D-total dose: 84 mg) and 4 times with 10 minutes interval between each repeated sprays (Treatment E-total dose: 112 mg). Treatment A, B, C, D will be administered in Cohort 1; Treatment D will be administered in Cohort 2; and Treatment E will be administered in Cohort 3.
Single dose of oral placebo will be administered 5 minutes before the first intranasal spray of esketamine solution in the Treatment E of Cohort 3. Placebo solution (solution of water for injection with denatonium benzoate) will be administered intranasally solution by nasal spray pump in the Treatment F of Cohort 3.
Unnamed facility
Merksem, Belgium
Maximum plasma concentration during a dosing interval (Cmax) of esketamine
Time frame: Predose, 7 minutes, 12 minutes, 22 minutes, 32 minutes, 40 minutes, 50 minutes, 1 hour, 1.25 hours, 1.5 hours, 2 hours, 3 hours, 4 hours, 6 hours, 9 hours, 12 hours, 18 hours, 24 hours
Time to reach the maximum plasma concentration (tmax) of esketamine
Time frame: Predose, 7 minutes, 12 minutes, 22 minutes, 32 minutes, 40 minutes, 50 minutes, 1 hour, 1.25 hours, 1.5 hours, 2 hours, 3 hours, 4 hours, 6 hours, 9 hours, 12 hours, 18 hours, 24 hours
Area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration (AUClast) of esketamine
Time frame: Predose, 7 minutes, 12 minutes, 22 minutes, 32 minutes, 40 minutes, 50 minutes, 1 hour, 1.25 hours, 1.5 hours, 2 hours, 3 hours, 4 hours, 6 hours, 9 hours, 12 hours, 18 hours, 24 hours
Number of participants with adverse events
Time frame: Up to 78 days
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Single 0.25-mg oral dose of triazolam will be administered 5 minutes before the first intranasal spray of placebo solution in the Treatment F of Cohort 3.