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Autism Spectrum DisorderPhase 3NCT03640156

Modulating Socially Adaptive Mirror System Functioning in Autism by Oxytocin

A Phase 3 study testing Oxytocin in people with Autism Spectrum Disorder, run by KU Leuven at 1 site in Belgium.

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 study investigates the efficacy of a single-dose of exogenous oxytocin administration on socially adaptive mirror-motor mapping in participants with Autism Spectrum Disorders. Read more about this study

Who is it for?
Ages 18 to 35 years, men onlyHealthy volunteers can take part
Conditions the study is for
Autism Spectrum Disorder
What is being tested?
Oxytocin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
25 participants
Where
1 siteBelgium
Study dates
26 Jul 2018to 19 Dec 2019
Phase
Phase 3
Are there results?
None posted in the registry

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 35 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male
  • Young adults (between 18 - 35 y/o)
  • Right-handed
  • Official diagnosis of Autism Spectrum Disorders (for ASD participants)

Who cannot join

  • Female
  • Left-handed
  • Any neuro(psycho)logical / psychiatric illness (for healthy controls)
  • Motor dysfunctions of the hands / arms
  • Any contradiction to TMS research as assessed with the TMS screening list: no metal objects in the body (e.g. pacemaker, coronary bypass clips, implants, medication pumps, ...), history of brain trauma in the past (e.g. meningitis, epilepsy, surgery, ...) or history of drug and/or alcohol abuse.

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Katholieke Universiteit Leuven

    Leuven, 3000

Other trials in Belgium

About this study

Official title: To Mirror or Not to Mirror Upon Perceived Eye Contact? The Effect of Oxytocin on Socially Adaptive Mirror System Functioning in Autism

This study investigates the efficacy of a single-dose of exogenous oxytocin administration on socially adaptive mirror-motor mapping in participants with Autism Spectrum Disorders. A placebo-controlled cross-over trial will be conducted: each participant will receive both a single-dose of placebo and oxytocin in two sessions separated by one week. The order of nasal spray will be randomised across participants. Mirror-motor mapping will be assessed by transcranial magnetic stimulation (TMS), a standard technique to investigate mirror system activity.

Read the detailed description

The brain's action observation network or 'mirror system' supports a variety of socio-cognitive functions, as it enables us to internally simulate and understand others' actions, emotions and intentions. Generally, mirror responses are larger upon the observation of actions accompanied by relevant information for the observer, such as direct eye contact from the actor. In other words, 'mirroring' is adaptively modulated according to the social salience of the observed actions (i.e. it is socially adaptive).

Individuals with Autism Spectrum Disorders (ASD) are known to endure difficulties with correctly recognizing eye contact as a communicative cue. Instead, they tend to experience eye contact as stressful and arousing. It is therefore hypothesized that, upon the observation of actions combined with salient gaze cues from the actor, these mirroring processes will not be adaptively modulated in participants with ASD.

As appropriate processing of eye contact is a key aspect of (non-verbal) communicative behavior, the investigator will investigate the efficacy of a single dose of intranasal oxytocin administration for enhancing socially-adaptive mirroring in ASD. Oxytocin is a neuropeptide that acts as a regulator social brain areas. On a behavioral level, it is known to enhance the saliency of observed social cues and to improve prosocial behavior. As such, it is regarded a promising intervention for alleviating the social and communicative deficits in ASD.

Being tested
Oxytocin, Placebo
Keywords
Oxytocin, Eye Contact, Mirror System, Transcranial Magnetic Stimulation
Medical subject headings
Autism Spectrum Disorder

What participants receive

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

  • OxytocinDrug

    Also called Syntocinon (product code RVG 03716)

    A single dose (24IU) of nasal spray (3 puffs of 4IU per nostril) will be administered before the assessment of the neurophysiological measures.

  • PlaceboOther

    A single dose (24IU) of nasal spray (3 puffs of 4IU per nostril) will be administered before the assessment of the neurophysiological measures.

Study groups in NCT03640156
Study groupRoleWhat they receive
Oxytocin (OXT) sprayExperimentalSyntocinon nasal spray (product code RVG 03716) will be used to intranasally administer one single dose (24 IU) of OXT (3 puffs of 4 IU per nostril).
Receives: Drug: Oxytocin
Placebo (PL) sprayPlacebo comparatorPhysiological water (a solution of sodium chloride (NaCl) in water) will be used to intranasally administer one single dose (24 IU) of PL (3 puffs of 4 IU per nostril).
Receives: Other: Placebo

What is being measured

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

  1. Change from baseline in socially adaptive mirroring as measured by TMS

    After a single dose of nasal spray, TMS will be applied to assess mirror-motor mapping during the observation of socially relevant vs. irrelevant visuomotor information.

    Measured: 30 minutes after spray administration

Secondary outcomes (3)
  1. Change from baseline in mirroring of others' actions as measured by TMS

    After a single dose of nasal spray, TMS will be applied to assess basic mirror-motor mapping of observed actions.

    Measured: 30 minutes after spray administration

  2. Change from baseline in corticospinal excitability as measured by TMS

    After a single dose of nasal spray, TMS will be applied to assess corticospinal excitability when the participant is at rest (without any visuomotor information).

    Measured: 30 minutes after spray administration

  3. Change from baseline in total fixation duration towards the eye region of the model.

    During movement observation, participants' viewing behavior will be monitored by means of head-mounted eye tracking technology.

    Measured: 30 minutes after spray administration

Timeline

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

  1. First posted21 Aug 2018
  2. Study start26 Jul 2018
  3. Primary completion19 Dec 2019
  4. Study completion19 Dec 2019

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 3
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03640156
Sponsor's protocol ID
S56327c
Status last verified
Feb 2020
First submitted
16 Aug 2018
Last updated
5 Feb 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Prinsen J, Bernaerts S, Wang Y, de Beukelaar TT, Cuypers K, Swinnen SP, Alaerts K. Direct eye contact enhances mirroring of others' movements: A transcranial magnetic stimulation study. Neuropsychologia. 2017 Jan 27;95:111-118. doi: 10.1016/j.neuropsychologia.2016.12.011. Epub 2016 Dec 8.

    PubMed 27939365
  • Prinsen J, Brams S, Alaerts K. To mirror or not to mirror upon mutual gaze, oxytocin can pave the way: A cross-over randomized placebo-controlled trial. Psychoneuroendocrinology. 2018 Apr;90:148-156. doi: 10.1016/j.psyneuen.2018.02.016. Epub 2018 Feb 22.

    PubMed 29494953

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Oxytocin in people with Autism Spectrum Disorder, run by KU Leuven at 1 site in Belgium.

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 5 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 5 Feb 2020. 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 Belgium. 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change from baseline in socially adaptive mirroring as measured by TMS (time frame: 30 minutes after spray administration). 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 NCT03640156, which also lists 2 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 5 Feb 2020.

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Clinical Trial NCT03640156 | AzTrials