A Dose Ranging Study for a Pharmacodynamic Model of Oxytocin for Peripheral Analgesia Effects
Sponsor study identifier
interventional
25
1 country
1
Study Start
May 9, 2022
Actual (reported)Primary Completion
February 10, 2023
Actual (reported)Study Completion
February 10, 2023
Actual (reported)This is a study of participants that will receive intravenous (IV) infusions of oxytocin (naturally occurring hormone that is made by the brain). In this study healthy participants will be recruited for the study. There will be 3 study related visits: 1) screening and informed consent 2) study medication infusions and thermal heat testing 3) study medication infusions and thermal heat testing. During study visits 2 and 3 an IV catheter will be placed and a dose of oxytocin or placebo (inactive solution) will be given over a 10 minute period; 1 hour after the first infusion, a second 10 minute infusion of oxytocin will be administered. Investigators will perform some tests to evaluate how oxytocin changes perceptions of the skin. Investigators will study a painful perception by placing a probe on the skin of the side of lower leg and heating it up to 113-117 degrees Fahrenheit (F) (45-47 degrees Celsius (C)) for 5 minutes. Each participant will score any pain that is experienced on a 0 to 10 scale for each minute during the heating period. Most people find that pain rises during the 5 minutes, but remains mild; usually less than 5 on the 0 to 10 pain scale. The temperature of the 5 minute heating will be determined according to the participants pain rating during the screening visit. The primary objective of the study is to determine the dose response of IV oxytocin for analgesia (pain relief) to experimental heat pain.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
February 10, 2023
Actual (reported)Click on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
December 16, 2021
Actual (reported)January 5, 2022
Actual (reported)May 9, 2022
Actual (reported)February 10, 2023
Actual (reported)February 10, 2023
Actual (reported)March 19, 2024
Actual (reported)Dose Response of Intravenous Oxytocin on Sustained Heat Pain
Pain intensity was reported by the subject at the end of the 5 minute heating of the skin to 45 - 47 degrees C, using a verbal pain scale 0-10. 0 is equivalent to NO PAIN and 10 is equivalent to THE WORST PAIN IMAGINABLE. Heating temperature was determined for each individual according to pain rating during screening visit. Pain scores obtained at 15, 30, and 45 minutes after the end of each 10 minute infusion were averaged for each individual and analyzed as th
45 min after the end of each study drug infusion
On the first oxytocin study day, participants will receive a 10 minute IV infusion of saline then one hour later will receive a 10 minute infusion of oxytocin 1.3 micrograms. On the second study day they will receive a 10 minute IV infusion of oxytocin 0.3 micrograms then one hour later will receive a 10 minute infusion of oxytocin 7 micrograms.
On the first oxytocin study day, participants will receive a 10 minute IV infusion of oxytocin 0.3 micrograms then one hour later will receive a 10 minute infusion of oxytocin 7 micrograms. On the second study day they will receive a 10 minute IV infusion of saline then one hour later will receive a 10 minute infusion of oxytocin 1.3 micrograms.
10 minute IV infusion of saline followed by a 10 minute infusion of oxytocin 1.3 micrograms
Wake Forest Baptist Health
Winston-Salem, North Carolina, 27157, United States
The original study design called for equal recruitment of subjects across three age ranges: young (18-39-year-old) middle (40 - 59-year-old) and older (60 - 75-year-old) with separate randomization in each group. The protocol was subsequently amended to remove this requirement.
James C Eisenach, MD
Wake Forest University Health Sciences
25 participants (actual enrollment reported by the registry).
First Submitted
December 16, 2021
First Posted
January 5, 2022
Study Start
Estimate Serum Oxytocin PD Range in the Periphery
Apply the PD Model of Peripheral Oxytocin Action to a Multimodal Stimulus
10 minute IV infusion of oxytocin 0.3 micrograms followed by a 10 minute infusion of oxytocin 7 micrograms
Contact the study team to confirm eligibility.
May 9, 2022
Primary Completion
February 10, 2023
Actual (reported)Study Completion
February 10, 2023
Actual (reported)Last Updated
March 19, 2024
Results First Posted
March 19, 2024
Record last verified: 2022-11
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Source: ClinicalTrials.gov.
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