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HealthyNCT01566539

Biological Basis of Individual Variation in Social Cooperation

A study testing Intranasal Oxytocin (OT) 24 IU, Intranasal Vasopressin (AVP) and Intranasal Vasopressin (AVP) 40 IU in people with Healthy, run by Emory University at 2 sites 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

The project has three overall objectives. The first is to determine whether and how administration of intranasal oxytocin (OT) and intranasal vasopressin (AVP) influence cooperative decision-making and neural responses to cooperative and un-cooperative social interactions. Read more about this study

Who is it for?
Ages 18 to 30 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Intranasal Oxytocin (OT) 24 IU, Intranasal Vasopressin (AVP) and Intranasal Vasopressin (AVP) 40 IU
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
707 participants
Where
2 sitesUnited States
Study dates
Apr 2008to Nov 2016
Phase
Interventional
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 30 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 18-30 years of age
  • 21-30 for Faces component
  • Normal or corrected-to-normal vision of 20/40
  • Unmedicated depressed or anxious men between 18-22 years of age for Anxious and Depressed component

Who cannot join

  • Pregnancy, recent birth, or breastfeeding
  • History of seizures
  • Neurological Disorder
  • Current psychiatric disorder
  • Previous psychiatric disorder (can be included as discretion of PI)
  • Current use of psychoactive drugs
Show all 21Show fewer
  • Previous use of psychoactive drugs (can be included as discretion of PI)
  • Previous head trauma (can be included at discretion of PI)
  • Alcoholism or substance abuse
  • Hypertension
  • Cardiovascular Disease
  • Nephritis
  • Diabetes
  • Endocrine disease or malignancy
  • Asthma (can be included as discretion of PI, if episodes are infrequent, nonmedicated, and no active problems at time of study)
  • Migraines (can be included as discretion of PI, if episodes are infrequent, nonmedicated, and no active problems at time of study)
  • Claustrophobia (at discretion of PI)
  • Additional exclusion criteria for Lorazepam arm
  • Acute narrow-angle glaucoma
  • Compromised respiratory function (e.g. sleep apnea and chronic obstructive pulmonary disease)
  • Impaired renal and hepatic function

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Emory University Hospital

    Atlanta, Georgia, 30307

  • Emory University 1462 Clifton Rd

    Atlanta, Georgia, 30322

Other trials in United States

About this study

Official title: The Biological Basis of Individual Variation in Social Cooperation

The project has three overall objectives. The first is to determine whether and how administration of intranasal oxytocin (OT) and intranasal vasopressin (AVP) influence cooperative decision-making and neural responses to cooperative and un-cooperative social interactions. The second is to determine whether and how intranasal vasopressin influences subjective evaluations of and neural responses to same and opposite-sex face stimuli and to determine if any of these effects persist beyond the period of AVP exposure. The third objective is to determine if intranasal OT influences empathy-related behavior and associated brain activity.

Read the detailed description

There are several objective to the study.

Objective 1: In this double-blind, placebo-controlled, pharmaco- fMRI study, men and women will be randomized to treatment with either 24 IU intranasal OT, 20 IU intranasal AVP, or placebo (PL). Approximately 40 minutes later, brain function will be imaged with fMRI as participants play an iterated Prisoner's Dilemma game with same-sex partners. The resulting data will be analyzed to investigate OT and AVP effects on cooperative behavior and the neural response to cooperative social interactions.

In addition to this cross-sectional design, a subset of participants will return on a second day for a within-subject study.

Objective 2: Men and healthy women will be randomized to treatment with either 40 IU intranasal AVP or a saline placebo approximately 30 minutes before their brain function is measured with fMRI as they view same and other-sex faces. All subjects will be scanned a second time several days later with no treatment to evaluate the persistence of AVP effects over time. The resulting data will be analyzed to investigate AVP effects on subjective evaluations and neural responses to viewing same and opposite sex faces.

Objective 3: Healthy men and healthy women will receive either 24IU intranasal OT or PL approximately 40 minutes before their brain function is measured with fMRI as they view animations of geometric shapes depicting either random movement or social interactions such as playing, chasing, fighting. All participants will receive PL on scan 1 and will be randomized to either 24IU intranasal OT or PL on scan 2. The resulting data will be analyzed to investigate OT effects on subjective evaluations and neural responses to the animations.

Conditions
Healthy
Being tested
Intranasal Oxytocin (OT) 24 IU, Intranasal Vasopressin (AVP), Intranasal Placebo, Intranasal Vasopressin (AVP) 40 IU, Lorazepam
Keywords
Social cooperation, Oxytocin, Vasopressin, Prisoner's Dilemma game, Empathy, fMRI
Medical subject headings
Diabetes Insipidus

What participants receive

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

  • Intranasal Oxytocin (OT) 24 IUDrug

    Also called Oxytocin: Syntocinon Nasal Spray

    Participants will self-administer a single dose of 24 international units (IU) oxytocin. Five puffs per nostril, each with 2.4 IU oxytocin. Ten puffs total.

  • Intranasal Vasopressin (AVP)Drug

    Participants will self-administer a 1 ml solution containing 20 units of AVP. Five puffs per nostril, each with 2 International Units (IU) AVP. Ten puffs total).

  • Intranasal PlaceboDrug

    Participants will receive placebo sprays that are pH adjusted to comparable levels of the drugs given. Five puffs per nostril; ten puffs total.

  • Intranasal Vasopressin (AVP) 40 IUDrug

    Participants will self-administer a 0.5 ml solution containing 40 international units (IU) of AVP. 5 puffs in total, each with 4 International Units (IU) AVP.

  • LorazepamDrug

    Subjects will take 1.0 mg of lorazepam orally 60 minutes prior to fMRI scan.

Study groups in NCT01566539
Study groupRoleWhat they receive
Healthy Volunteers - Intranasal Vasopressin (AVP)ExperimentalThe AVP group of healthy volunteers will self-administer vasopressin solution prior to completing the PD task.
Receives: Drug: Intranasal Vasopressin (AVP)
Healthy Volunteers - Intranasal Oxytocin (OT)ExperimentalThe OT group of healthy volunteers will self-administer oxytocin solution prior to completing the PD task.
Receives: Drug: Intranasal Oxytocin (OT) 24 IU
Healthy Volunteers - Intranasal PlaceboPlacebo comparatorThe placebo group of healthy volunteers will self-administer a placebo spray prior to completing the PD task.
Receives: Drug: Intranasal Placebo
Within Subject GroupExperimentalSome healthy volunteer participants who received drug in their first session will receive placebo in their second session and vice-versa prior to completing the PD task. For each gender, half will receive AVP in one session and placebo in the other session, and half will receive OT in one session and placebo in the second session. In each group, half of the subjects will receive drug first and half will receive placebo first. Additionally, a group of subjects who receive placebo the first time will receive placebo the second time.
Receives: Drug: Intranasal Oxytocin (OT) 24 IU; Drug: Intranasal Vasopressin (AVP); Drug: Intranasal Placebo
Faces Task - Vasopressin (AVP)ExperimentalHealthy volunteers between the ages of 21-30 years will receive Faces Intranasal Vasopressin (AVP) prior to completing the Faces task during fMRI scanning.
Receives: Drug: Intranasal Vasopressin (AVP) 40 IU
Faces Task - PlaceboPlacebo comparatorHealthy volunteers between the ages of 21-30 years will receive placebo prior to completing the Faces task during fMRI scanning.
Receives: Drug: Intranasal Placebo
Empathy Task - Oxytocin (OT)ExperimentalHealthy volunteers between the ages of 18-30 years will receive placebo at scan 1 and OT at scan 2 prior to completing an empathy task.
Receives: Drug: Intranasal Oxytocin (OT) 24 IU; Drug: Intranasal Placebo
Empathy Task - PlaceboPlacebo comparatorHealthy volunteers between the ages of 18-30 years will receive placebo at scan 1 and placebo at scan 2 prior to completing an empathy task.
Receives: Drug: Intranasal Placebo
Anxious and Depressed Subjects - OTExperimentalDepressed or anxious men between the ages of 18 and 22 will receive intranasal OT prior to completing the Prisoner's Dilemma game task and MRI scan.
Receives: Drug: Intranasal Oxytocin (OT) 24 IU
Anxious and Depressed Subjects - PlaceboPlacebo comparatorDepressed or anxious men between the ages of 18 and 22 will receive intranasal placebo prior to completing the Prisoner's Dilemma game task and MRI scan.
Receives: Drug: Intranasal Placebo
Healthy Volunteers - LorazepamExperimentalHealthy normal men between the ages of 18 and 22 will receive lorazepam prior to completing the Prisoner's Dilemma game task and MRI scan.
Receives: Drug: Lorazepam

What is being measured

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

  1. Healthy Volunteers-OT, Placebo: Mean Percent Signal Change in Right Caudate Nucleus in Men

    The effect of the drug treatment will be assessed by determining differences in brain activation between OT and placebo groups in the right caudate nucleus region during reciprocated cooperation in Prisoner Dilemma game while undergoing an fMRI scan.

    Measured: Visit 1 (40-100 Minutes Post-Intervention)

  2. Healthy Volunteers-OT, Placebo: Mean Percent Signal Change in Right Caudate Nucleus in Women

    The effect of the drug treatment will be assessed by determining differences in brain activation between OT and placebo groups in the right caudate nucleus region during reciprocated cooperation in Prisoner Dilemma game while undergoing an fMRI scan.

    Measured: Visit 1 (40-100 Minutes Post-Intervention)

  3. Healthy Volunteers-AVP, Placebo: Mean Percent Signal Change in Left Insula in Men

    The effect of the drug treatment will be assessed by determining differences in brain activation between AVP and placebo groups in the left insula region during reciprocated cooperation in Prisoner Dilemma game while undergoing an fMRI scan.

    Measured: Visit 1 (40-100 Minutes Post-Intervention)

  4. Healthy Volunteers-AVP, Placebo: Mean Percent Signal Change in Left Insula in Women

    The effect of the drug treatment will be assessed by determining differences in brain activation between AVP and placebo groups in the left insula during reciprocated cooperation in Prisoner Dilemma game while undergoing an fMRI scan.

    Measured: Visit 1 (40-100 Minutes Post-Intervention)

  5. Within Subject Group: Mean Percent Signal Change in Left Caudate Nucleus in Men and Women

    The effect of the drug will be assessed by determining changes in brain activation between the visit where the participant received drug and the visit where the participant received PL in the right caudate during reciprocated cooperation in Prisoner Dilemma game while undergoing an fMRI scan.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 2 Weeks)

Secondary outcomes (12)
  1. Healthy Volunteer Groups: Total Number of Cooperate Choices Made by Men During the Prisoners Dilemma Game

    The effect of the drug treatments will be assessed by determining the number of cooperative choices made during the prisoner's dilemma game. Participants may make two choices that are considered "cooperative". The higher the total number, the more cooperative choices made.

    Measured: Visit 1 (40-100 Minutes Post-Intervention)

  2. Healthy Volunteer Groups: Total Number of Cooperate Choices Made by Women During the Prisoners Dilemma Game

    The effect of the drug treatments will be assessed by determining the number of cooperative choices made during the prisoner's dilemma game. Participants may make two choices that are considered "cooperative". The higher the total number, the more cooperative choices made.

    Measured: Visit 1 (40-100 Minutes Post-Intervention)

  3. Within Subject Group: Mean Difference in Number of Cooperate Choices Made by Male During the Prisoners Dilemma Game

    The effect of the drug treatments will be assessed by determining the number of cooperative choices made during the prisoner's dilemma game. Participants may make two choices that are considered "cooperative". The higher the total number, the more cooperative choices made.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 2 Weeks)

  4. Within Subject Group: Mean Difference in Number of Cooperate Choices Made by Female During the Prisoners Dilemma Game

    The effect of the drug treatments will be assessed by determining the number of cooperative choices made during the prisoner's dilemma game. Participants may make two choices that are considered "cooperative". The higher the total number, the more cooperative choices made.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 2 Weeks)

  5. Faces Task Groups: Mean Percent Signal Change in Nucleus Accumbens to Faces in Men

    The effect of the drug treatment will be assessed by determining differences in brain activation between AVP and PL group when participants are viewing same-sex faces, and when participants are viewing other-sex faces.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 7 Days)

  6. Faces Task Groups: Mean Percent Signal Change in Nucleus Accumbens to Faces in Women

    The effect of the drug treatment will be assessed by determining differences in brain activation between AVP and PL group when participants are viewing same-sex faces, and when participants are viewing other-sex faces.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 7 Days)

  7. Faces Task Groups: Mean Approachability Rating of Faces in Men

    Approachability is rated by a study specific seven point scale where -3 indicates threatening and unapproachable and +3 indicates friendly and approachable. Participants will rate same-sex and other-sex faces. The effect of the drug treatment will be assessed by determining differences in approachability ratings between AVP and PL group when participants are viewing same-sex faces, and when participants are viewing other-sex faces.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 7 Days)

  8. Faces Task Group: Mean Approachability Rating of Faces in Women

    Approachability is rated by a study specific seven point scale where -3 indicates threatening and unapproachable and +3 indicates friendly and approachable. Participants will rate same-sex and other-sex faces. The effect of the drug treatment will be assessed by determining differences in approachability ratings between AVP and PL group when participants are viewing same-sex faces, and when participants are viewing other-sex faces.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 7 Days)

  9. Faces Task Groups: Mean Attractiveness Rating of Faces in Men

    Attractiveness is rated by a study specific seven point scale where -3 indicates least attractive and +3 indicates most attractive. Participants will rate same-sex and other-sex faces. The effect of the drug treatment will be assessed by determining differences in attractiveness ratings between AVP and PL group when participants are viewing same-sex faces, and when participants are viewing other-sex faces.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 7 Days)

  10. Faces Task Groups: Mean Attractiveness Rating of Faces in Women

    Attractiveness is rated by a study specific seven point scale where -3 indicates least attractive and +3 indicates most attractive. Participants will rate same-sex and other-sex faces. The effect of the drug treatment will be assessed by determining differences in attractiveness ratings between AVP and PL group when participants are viewing same-sex faces, and when participants are viewing other-sex faces.

    Measured: Visit 1 (30-75 Minutes Post-Intervention), Visit 2 (Up to 7 Days)

  11. Empathy Task Groups: Mean Percent Signal Change in Early Visual Cortex in Response to Animation in Women

    The effect of the drug treatment will be assessed by determining differences in brain activation between OT and PL group when participants are viewing animations.

    Measured: Visit 1 (40-75 Minutes Post-Intervention), Visit 2 (Up to 1 Month)

  12. Empathy Task Groups: Mean Percent Signal Change in Early Visual Cortex in Response to Animation in Men

    The effect of the drug treatment will be assessed by determining differences in brain activation between OT and PL group when participants are viewing animations.

    Measured: Visit 1 (40-75 Minutes Post-Intervention), Visit 2 (Up to 1 Month)

Timeline

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

  1. First posted29 Mar 2012 (estimated)
  2. Study startApr 2008
  3. Primary completionNov 2016
  4. Study completionNov 2016

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 N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Factorial
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
707 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01566539
Sponsor's protocol ID
IRB00007905
Other IDs
1R01MH084068-01A1, MH087721-01A1
Status last verified
Sep 2017
First submitted
26 Mar 2012
Last updated
25 Sep 2017
Data monitoring committee
Yes

Publications

  • Kosfeld M, Heinrichs M, Zak PJ, Fischbacher U, Fehr E. Oxytocin increases trust in humans. Nature. 2005 Jun 2;435(7042):673-6. doi: 10.1038/nature03701.

    PubMed 15931222
  • Fisher H, Aron A, Brown LL. Romantic love: an fMRI study of a neural mechanism for mate choice. J Comp Neurol. 2005 Dec 5;493(1):58-62. doi: 10.1002/cne.20772.

    PubMed 16255001
  • Thompson RR, George K, Walton JC, Orr SP, Benson J. Sex-specific influences of vasopressin on human social communication. Proc Natl Acad Sci U S A. 2006 May 16;103(20):7889-94. doi: 10.1073/pnas.0600406103. Epub 2006 May 8.

    PubMed 16682649
  • Vrticka P, Andersson F, Sander D, Vuilleumier P. Memory for friends or foes: the social context of past encounters with faces modulates their subsequent neural traces in the brain. Soc Neurosci. 2009;4(5):384-401. doi: 10.1080/17470910902941793. Epub 2009 Jul 27.

    PubMed 19637101
  • Singer T, Kiebel SJ, Winston JS, Dolan RJ, Frith CD. Brain responses to the acquired moral status of faces. Neuron. 2004 Feb 19;41(4):653-62. doi: 10.1016/s0896-6273(04)00014-5.

    PubMed 14980212
  • Guroglu B, Haselager GJ, van Lieshout CF, Takashima A, Rijpkema M, Fernandez G. Why are friends special? Implementing a social interaction simulation task to probe the neural correlates of friendship. Neuroimage. 2008 Jan 15;39(2):903-10. doi: 10.1016/j.neuroimage.2007.09.007. Epub 2007 Sep 15.

    PubMed 17964185

Questions about this trial

What is this clinical trial studying?

A study testing Intranasal Oxytocin (OT) 24 IU, Intranasal Vasopressin (AVP) and Intranasal Vasopressin (AVP) 40 IU in people with Healthy, run by Emory University at 2 sites 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 21 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 25 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 25 Sep 2017). 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?

Healthy Volunteers-OT, Placebo: Mean Percent Signal Change in Right Caudate Nucleus in Men (time frame: Visit 1 (40-100 Minutes Post-Intervention)). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01566539, which also lists 6 linked publications.

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 25 Sep 2017.

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