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AzTrials

Healthy Volunteer StudyPhase 2NCT05179421

Dose Ranging Study of Intravenous Oxytocin for Analgesia to Heat Pain

A Phase 2 study testing Low dose oxytocin and High dose oxytocin in people with Healthy Volunteer Study, run by Wake Forest University Health Sciences at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteer Study
What is being tested?
Low dose oxytocin and High dose oxytocin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
1 siteUnited States
Study dates
9 May 2022to 10 Feb 2023
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male or female > 18 and < 75 years of age, Body Mass Index (BMI) <40.
  • Generally in good health as determined by the Principal Investigator based on prior medical history, American Society of Anesthesiologists physical status 1, 2, or 3.
  • For healthy volunteers, normal blood pressure (systolic 90-140 mmHg; diastolic 50-90 mmHg) resting heart rate 45-100 beats per minute) without medication. For knee arthritis subjects, normal blood pressure or, for those with hypertension, pressure controlled with anti-hypertensives and with a resting heart rate 45-100 beats per minute.
  • Female subjects of child-bearing potential and those < 1 year post-menopausal, must be practicing highly effective methods of birth control such as hormonal methods (e.g., combined oral, implantable, injectable, or transdermal contraceptives), double barrier methods (e.g., condoms, sponge, diaphragm, or vaginal ring plus spermicidal jellies or cream), or total abstinence from heterosexual intercourse for a minimum of 1 full cycle before study drug administration.

Who cannot join

  • Hypersensitivity, allergy, or significant reaction to any ingredient of Pitocin®
  • Any disease, diagnosis, or condition (medical or surgical) that, in the opinion of the Principal Investigator, would place the subject at increased risk (active gynecologic disease in which increased tone would be detrimental e.g., uterine fibroids with ongoing bleeding), compromise the subject's compliance with study procedures, or compromise the quality of the data
  • Women who are pregnant (positive result for serum pregnancy test at screening visit), women who are currently nursing or lactating, women that have been pregnant within 2 years
  • Subjects with neuropathy, chronic pain, diabetes mellitus, or taking benzodiazepines or pain medications on a daily basis.
  • Subjects with current or history of ventricular tachycardia, atrial fibrillation or prolonged QT interval.
  • Subjects with past or current history of hyponatremia or at risk for hyponatremia; anyone taking thiazide diuretics, loop diuretics, combination diuretics, lithium, carbamazepine, enalapril, Ramipril, celecoxib, temazepam, gliclazide, glimepiride, glibenclamide, glipizide, omeprazole, pantoprazole, desmopressin, SSRI's, MAOI, or the recreational drug ecstasy.
  • Subjects with a known latex allergy.
  • Subjects with a pain score rating of 1 or less during the initial training session to a 5 minute heating of 45°C- 47 °C to the lower calf.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Wake Forest Baptist Health

    Winston-Salem, North Carolina, 27157

Other trials in United States

About this study

Official title: A Dose Ranging Study for a Pharmacodynamic Model of Oxytocin for Peripheral Analgesia Effects

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.

Read more

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.

Read the detailed description

Equal numbers of adult men and women; ages 18-75 will be recruited. Participants will report to the research unit for three visits, 1) screening and informed consent 2) study medication infusions and thermal heat testing 3) study medication infusions and thermal heat testing separated by at least 72 hours.

For study infusion visits, study participants will come to the Clinical Research Unit and one intravenous (IV) catheter will be inserted in the forearm for oxytocin infusions. Participants in this study will receive a dose of oxytocin or placebo at a steady rate for 10 minutes; one hour later, a second dose of oxytocin will be administered during one visit. During the second study infusion visit, a lower dose of oxytocin will be given by a 10-minute IV infusion and one hour later a second infusion of oxytocin at a higher dose will be given. On one study day the doses will by 0 and 1.3 micrograms (µg) and on the other study day the doses will be 0.3 and 7 µg oxytocin. The order of study days will be randomized and double-blinded. As a result, each participant will receive oxytocin doses of 0, 0.3, 1.3, and 7 µg in this double blind design.

Being tested
Low dose oxytocin, High dose oxytocin

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Low dose oxytocinDrug

    Also called Pitocin

    10 minute IV infusion of saline followed by a 10 minute infusion of oxytocin 1.3 micrograms

  • High dose oxytocinDrug

    Also called Pitocin

    10 minute IV infusion of oxytocin 0.3 micrograms followed by a 10 minute infusion of oxytocin 7 micrograms

Study groups in NCT05179421
Study groupRoleWhat they receive
First infusion day low dose oxytocin, Second infusion day high dose oxytocinExperimentalOn 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.
Receives: Drug: Low dose oxytocin; Drug: High dose oxytocin
First infusion day high dose oxytocin, Second infusion day low dose oxytocinExperimentalOn 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.
Receives: Drug: Low dose oxytocin; Drug: High dose oxytocin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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

    Measured: 45 min after the end of each study drug infusion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jan 2022
  2. Study start9 May 2022
  3. Primary completion10 Feb 2023
  4. Study completion10 Feb 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Model description
Each participant will receive 2 IV infusions separated by 1 hour One study day: saline (placebo) then oxytocin 1.3 micrograms Another study day: oxytocin 0.3 micrograms then oxytocin 7 micrograms
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05179421
Sponsor's protocol ID
IRB00079629
Status last verified
Nov 2022
First submitted
16 Dec 2021
Last updated
19 Mar 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Low dose oxytocin and High dose oxytocin in people with Healthy Volunteer Study, run by Wake Forest University Health Sciences at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 Mar 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose Response of Intravenous Oxytocin on Sustained Heat Pain (time frame: 45 min after the end of each study drug infusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Mar 2024.

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