ClinicalTrials.gg
CompletedNCT01183221Updated Apr 15, 2021Results posted

The Effects of Oxytocin on Complex Social Cognition in Autism Spectrum Disorders

A Phase 2 interventional study of Syntocinon and Placebo in Autism and ASD, sponsored by Alexander Kolevzon. Completed at 1 site in United States. Open to participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2021-04-15.

Sponsored by Alexander Kolevzon · Phase 2, Interventional, and Basic science

Phase
Phase 2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

This study examines the effects of a single dose of intranasal oxytocin (vs. placebo) on complex social cognition in adults with autism spectrum disorders.

Read the detailed description

Participants receive a one-time administration of 24-IU intranasal oxytocin (or placebo) and perform an empathic accuracy task, a novel and ecologically valid measure of complex social cognition, in conjunction with functional magnetic resonance imaging (fMRI). The investigators will investigate the effects of oxytocin (versus placebo) on the behavioral and neural correlates of empathic accuracy.

02

Conditions studied

  • Autism
  • ASD

Browse trials for

03

In context

Autistic Disorder

1,030 studies on the registry are indexed under Autistic Disorder; 266 are open to participants now.

This study's enrollment of 30 is below the median of 49 across 811 interventional studies indexed under Autistic Disorder.

Browse Autistic Disorder studies →

Lead sponsor

Alexander Kolevzon is the lead sponsor of 4 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • In good physical health
  • Meet criteria for ASD according to psychiatric interview using the Diagnostic and Statistic Manual, Fourth Edition ()
  • Must be a history of developmental delay
  • Must meet full criteria for ASD on the Autism Diagnostic Interview- Revised (ADI-R) on either the social or communication domains and within two points on other domain (only if parent available for interview)
  • Must meet full criteria for ASD on the Autism Diagnostic Observation Schedule- Generic (ADOS-G) on the social domain. Meeting for ASD on the communication domain and total domain is not necessary
  • Must have a verbal IQ greater than 75, as measured by the Wechsler Adult Intelligence Scale- Fourth Edition (WAIS- III). Intelligence testing performed at other sites or through another protocol at this site within the past year will also be accepted
  • Capability of performing experimental tasks (i.e. can read and understand task instructions, cooperate with procedures)
  • and capacity
  • Female participants must remain on for the duration of the study

Exclusion criteria

Exclusion Criteria:

  • Participants with any primary psychiatric diagnosis at screening
  • Participants with a medical history of neurological disease, including, but not limited to, epilepsy/seizure disorder (except simple febrile seizures), movement disorder, tuberous sclerosis, fragile X, and any other known genetic syndromes, or known abnormal MRI/structural lesion of the brain
  • Participants who are pregnant, who gave birth in the last six months, or who are currently breastfeeding
  • Participants with a medical condition that might interfere with the conduct of the study, confound interpretation of the study results, or endanger their own well-being
  • Participants with evidence or history of or any significant hematological endocrine, cardiovascular (including rhythm disorder), respiratory, renal, hepatic, gastrointestinal disease, or other major medical conditions
  • Participants taking psychoactive medication(s) (e.g., stimulants, antidepressants, antipsychotics, antiepileptics, anxiolytics, clondine)
  • Participants who, in the Investigator's opinion, might not be suitable for the study
  • Participants who are involved in another study whose procedures could influence performance in the current study
  • Female participants who do not stay on for the duration of the study
  • Participants who have a known to the MRI scan: including sever claustrophobia or any kind of metal implant in the body
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 2
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Investigator)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    Syntocinon then Placebo

    24IU intranasal oxytocin, minimum of 3 weeks off, then placebo

    Drug: Syntocinon · Drug: Placebo

  • Placebo comparator
    Placebo then Syntocinon

    Placebo, minimum of 3 weeks off, then 24IU intranasal oxytocin or placebo

    Drug: Syntocinon · Drug: Placebo

Interventions

  • One dose of 24 IU (3 sprays/nostril)

    Also known as: Intranasal oxytocin

  • DrugPlacebo

    Intranasal Placebo

06

What researchers measure

Primary outcomes

  1. Empathic Accuracy Performance

    Participants watch videos of targets describing positive and negative autobiographical events and provide continuous ratings of how positive-negative the target is feeling on a 9-point Likert scale. Empathic accuracy is operationalized as a timecourse correlation between perceiver inferences about target affect and targets' own affect ratings.

    Time frame: 45 minutes after drug/placebo administration

  2. Fmri BOLD Response During Empathic Accuracy Task

    Images will be acquired using a 3.0 Tesla Siemens Allegra MRI scanner equipped to acquire gradient-echo, echoplanar T2\*-weighted images (EPI) with blood oxygenation level dependent (BOLD) contrast. Each volume will comprise 26 axial slices of 4.5mm thickness and a 3.5 x 3.5mm in-plane resolution, aligned along the AC-PC axis. Volumes will be acquired continuously every 2 seconds. Each run will begin with 5 'dummy' volumes, which will be discarded from further analyses. At the end of the scanning session, a T-1 weighted structural image will be acquired from each participant.

    Time frame: 45 minutes after oxytocin/placebo administration

07

Results

Posted Apr 15, 2021

Participant flow

First Dose
Participant flow — First Dose
MilestoneSyntocinon Then PlaceboPlacebo Then Syntocinon
Started1515
Completed1515
Not completed00
3 Weeks Wash Out
Participant flow — 3 Weeks Wash Out
MilestoneSyntocinon Then PlaceboPlacebo Then Syntocinon
Started1515
Completed1414
Not completed11
Withdrew: Lost to follow-up11
Second Dose
Participant flow — Second Dose
MilestoneSyntocinon Then PlaceboPlacebo Then Syntocinon
Started1414
Completed1414
Not completed00

Outcome measures

PrimaryEmpathic Accuracy Performance

Participants watch videos of targets describing positive and negative autobiographical events and provide continuous ratings of how positive-negative the target is feeling on a 9-point Likert scale. Empathic accuracy is operationalized as a timecourse correlation between perceiver inferences about target affect and targets' own affect ratings.

Time frame:
45 minutes after drug/placebo administration

No measurements were reported for this outcome.

PrimaryFmri BOLD Response During Empathic Accuracy Task

Images will be acquired using a 3.0 Tesla Siemens Allegra MRI scanner equipped to acquire gradient-echo, echoplanar T2\*-weighted images (EPI) with blood oxygenation level dependent (BOLD) contrast. Each volume will comprise 26 axial slices of 4.5mm thickness and a 3.5 x 3.5mm in-plane resolution, aligned along the AC-PC axis. Volumes will be acquired continuously every 2 seconds. Each run will begin with 5 'dummy' volumes, which will be discarded from further analyses. At the end of the scanning session, a T-1 weighted structural image will be acquired from each participant.

Time frame:
45 minutes after oxytocin/placebo administration

No measurements were reported for this outcome.

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Syntocinon0/28 (0%)0/28 (0%)8/28 (28.6%)
Placebo0/28 (0%)0/28 (0%)10/28 (35.7%)
Most frequent other events
Showing 10 of 20
Most frequent other events
EventSyntocinonPlacebo
HeadacheGeneral disorders4/282/28
FatigueGeneral disorders2/281/28
Watery eyesEndocrine disorders1/282/28
Burning in throat after nasal sprayRespiratory, thoracic and mediastinal disorders2/280/28
Sinuses tenderBlood and lymphatic system disorders2/280/28
Lack of focusPsychiatric disorders1/282/28
Felt body/joint painMusculoskeletal and connective tissue disorders2/282/28
Runny noseRespiratory, thoracic and mediastinal disorders2/282/28
Ringing EarsEar and labyrinth disorders0/281/28
Shortness of BreathRespiratory, thoracic and mediastinal disorders1/280/28

Baseline characteristics

Age, Continuous
Age, Continuous(years)Syntocinon Then PlaceboPlacebo Then SyntocinonTotal
Mean30.7 ± 8.927.5 ± 6.729.3 ± 7.7
Sex: Female, Male
Sex: Female, Male(Participants)Syntocinon Then PlaceboPlacebo Then SyntocinonTotal
Female437
Male101121
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Syntocinon Then PlaceboPlacebo Then SyntocinonTotal
Hispanic or Latino235
Not Hispanic or Latino121123
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Syntocinon Then PlaceboPlacebo Then SyntocinonTotal
American Indian or Alaska Native000
Asian112
Native Hawaiian or Other Pacific Islander000
Black or African American011
White11920
More than one race000
Unknown or Not Reported235
08

Study locations

1 site
  • Mount Sinai School of Medicine - Seaver Autism Center for Research and Treatment
    New York, New York 10029, United States
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2010 to primary completion in Apr 2014, 46 months.

Results were first posted in Apr 2021, 6 years 11 months after primary completion.

Of 35 non-industry phase 2 interventional studies under Autistic Disorder, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 63. This study's 46 months is close to that.

Counting every sponsor, half of 44 studies reached it within 39 months; a quarter within 24 and three quarters within 62.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 12, 2010
First posted
Aug 17, 2010
StartActual
Jun 18, 2010
Primary completionActual
Apr 25, 2014
CompletionActual
Apr 25, 2014
Results first posted
Apr 15, 2021
Last update
Apr 15, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 15, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01183221
Lead sponsor
Alexander Kolevzon
Responsible party
Alexander Kolevzon (Professor, Icahn School of Medicine at Mount Sinai) — Sponsor-investigator
First posted
Aug 17, 2010
Start date
Jun 18, 2010
Primary completion
Apr 25, 2014
Completion
Apr 25, 2014
Results posted
Apr 15, 2021
Last update
Apr 15, 2021

Study contacts

Jennifer Bartz, P.h.D.
principal investigator · Icahn School of Medicine at Mount Sinai

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2021. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Oxytocin

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