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CompletedNCT06405737Updated Aug 14, 2024

Oxytocin's Effect on the Advantageous- and Disadvantageous-inequity

An interventional study of Intranasal oxytocin and Intranasal placebo in Healthy, sponsored by University of Electronic Science and Technology of China. Completed at 1 site in China. Open to male participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-08-14.

Sponsored by University of Electronic Science and Technology of China · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Jan 2024, registered May 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 30 Years
Sex
Male
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Study summary

The main aim of the study is to investigate whether intranasal oxytocin modulates advantageous- and disadvantageous-inequity and whether oxytocin has similar effects on them or not.

Read the detailed description

The main aim of the study is to investigate whether intranasal oxytocin modulates advantageous- and disadvantageous-inequity and its underlying neural mechanisms and whether oxytocin has similar effects on them or not. A double-blinded, placebo-controled, between-subject design is employed in this study. In a randomized order, a total of 80 healthy males are instructed to self-administrated intranasal spray of oxytocin or placebo. A modified inequity decision-making task starts 45 minutes after treatment with behavioral (fairness rating, preference rating and the choice rate of unequal option) and fMRI data being collected during this task. Personality traits of subjects are assessed using validated Chinese version questionnaires including the Beck Depression Inventory (BDI-II), State-Trait Anxiety Inventory (STAI), Autism Spectrum Quotient (ASQ), Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ), Behavioral Inhibition System and Behavioral Activation System Scale (BIS/BAS). Subjects are asked to complete Positive and Negative Affect Schedule (PANAS) when they just arrive, before and after the task.

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Conditions studied

  • Healthy

Keywords

  • advantageous inequity
  • disadvantageous inequity
  • fMRI
  • oxytocin
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In context

Lead sponsor

University of Electronic Science and Technology of China is the lead sponsor of 109 studies on the registry; 35 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 30 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

  • Healthy subjects without past or current psychiatric or neurological disorders

Exclusion criteria

Exclusion Criteria:

  • history of head injury
  • pregnant,menstruating,taking oral contraceptives
  • medical or psychiatric illness.
  • excessive head movement (> 3mm) during scanning
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Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
80 participants (actual)

Study arms

  • Experimental
    oxytocin

    a single dose of 24 international units (IU) of OT will be administered with 3 puffs of treatment to each nostril.

    Drug: Intranasal oxytocin

  • Experimental
    placebo

    a single dose of 24 international units (IU) of placebo will be administered with 3 puffs of treatment to each nostril.

    Drug: Intranasal placebo

Interventions

  • DrugIntranasal oxytocin

    Subject assigned to receive intranasal administration of oxytocin (24 IU).

  • DrugIntranasal placebo

    Subjects assigned to receive intranasal administration of placebo (24 IU).

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What researchers measure

Primary outcomes

  1. Behavioral index: fairness rating scores

    Participants are instructed to rate their perceived levels of fairness to the allocation using a 9-point Likert scale within 4 seconds (1 = very unfair, 9 = very fair).

    Time frame: 45-75 minutes after treatment administration

  2. Behavioral index: preference rating scores

    Participants are instructed to rate their perceived levels of preference to the allocation using a 9-point Likert scale within 4 seconds (1 = not at all, 9 = very preferable).

    Time frame: 45-75 minutes after treatment administration

  3. Neural indices: fMRI-based measures of the outcome presentation stage

    Functional magnetic resonance imaging (fMRI) is employed to assess participants' blood-oxygen-level dependent signals when they are confronted with monetary allocations (advantageous-inequity, disadvantageous-inequity, and fair).

    Time frame: 45-75 minutes after treatment administration

Secondary outcomes

  1. Behavioral index: choice rate of unequal option

    Participants are instructed to make a hypothetical choice between the actual allocation in the current trial and the other fair option if they were given another chance to re-choose.

    Time frame: 45-75 minutes after treatment administration

  2. Neural indices: fMRI-based measures of outcome and re-decision stages

    Functional magnetic resonance imaging (fMRI) is employed to assess participants' blood-oxygen-level dependent signals when they are instructed to make a hypothetical choice between the actual allocation in the current trial and the other fair option if they were given another chance to re-choose.

    Time frame: 45-75 minutes after treatment administration

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Study locations

1 site
  • University of Electronic Science and Technology of China (UESTC)
    Chengdu, Sichuan 611731, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 14, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06405737
Lead sponsor
University of Electronic Science and Technology of China
Responsible party
Shuxia Yao (Professor, University of Electronic Science and Technology of China) — Principal investigator
First posted
May 8, 2024
Start date
Jan 7, 2024
Primary completion
Jun 12, 2024
Completion
Jun 20, 2024
Last update
Aug 14, 2024

Study contacts

Yao Shuxia, Dr
principal investigator · University of Electronic Science and Technology of China

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

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