Pharmacodynamic Clinical Trial
Official title:
A Two-part Open Label Study of the Pharmacodynamic Effects of Intranasal Nalmefene Compared to Intranasal Naloxone in Healthy Volunteers Under Steady State Opioid Agonism
This study is to determine the pharmacodynamics (the effects of the drug and mechanisms of their action within the body) of Nalmefene when given intranasally (IN; into the nose) compared to intranasal naloxone when given to healthy volunteers under steady state opioid agonism.
Open-label, 2-part study. Part 1 is a pilot study to determine the relationship between opioid agonism and suppression of carbon dioxide induced increases in minute ventilation prior to opioid exposure. Part 2 will be a randomized, 2 period, 2 treatment, crossover study to evaluate the pharmacodynamic effects of intranasal (IN) nalmefene compared to IN naloxone to reverse opioid-induced suppression of carbon dioxide induced increases in minute ventilation, in healthy volunteers with prior opioid exposure. Both Part 1 and Part 2 of the study will consist of an outpatient Screening Visit taking place 28 days prior to admission, an in-clinic Treatment Phase consisting of a 6 or 7 day inpatient stay, and a Follow-Up Phone Call conducted 3 to 7 days after discharge. ;
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