Intranasal Oxytocin in the Treatment of Autism
Definition: Extended description of the protocol, including information not already contained in other fields, such as comparison(s) studied.
Autism is a developmental disorder characterized by abnormalities in speech and communication, impaired social functioning, and repetitive behaviors and restricted interests (American Psychiatric Association, 2000). A number of researchers have suggested that the neuropeptide oxytocin may be implicated in the etiology of autism (Hollander et al., 2003; Insel et al., 1999; Lim et al., 2005; McCarthy & Altemus, 1997; Modahl et al., 1992; Waterhouse et al., 1996).
Given the likely possibility of dysregulated oxytocin in autism, the goal of this pilot study is to investigate the long-term therapeutic effects of oxytocin in the treatment of autism. One practical issue with oxytocin is that it does not exist in a pill form. Only the intravenous form is available in the US and this form may or may not pass the blood-brain barrier. In addition, IV oxytocin is not practical for treatment studies. One alternative is intranasal oxytocin; this form of administration is known to pass the blood-brain barrier, and it is easy for participants to self-administer. Although not available in the US, we are in the process of receiving an IND exemption for its use and can import it from Europe.
Thus, this pilot investigation will explore daily intranasal oxytocin in the treatment of autism. Also, there are very few, if any, outcome measures to assess social functioning in the "real world" in the context of clinical trials; yet, this is a major target for intervention, especially in autism. Thus, a final goal of this study will be to explore the use of Event Contingent Recording (ECR) to index changes in social functioning and affect. ECR is a methodology developed by personality/social psychologists, which allows participants to report on symptoms, affect, and behavior close in time to experience. In addition, to enabling more sensitive assessments, this methodology allows for the assessment of more diverse (e.g., at home versus work) and more detailed measurements of mood and behavior.
Finally, a portion of this study aims to perform gene expression profiling using fresh whole blood to explore the molecular mechanisms underlying oxytocin therapy and oxytocin efficacy in adults with high functioning autism or Asperger's syndrome. The systemic effects of oxytocin therapy and the molecular basis for a positive treatment response to oxytocin are not well understood. An understanding of the former may help predict those persons who may suffer side-effects from treatment and the latter may help provide easily accessible peripheral biomarkers that could predict treatment response.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Mount Sinai School of Medicine
Mount Sinai School of Medicine
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00490802
- Information obtained from ClinicalTrials.gov on July 15, 2010
Background: - Oxytocin and vasopressin are two hormones produced in the brain. Both hormones can influence activity in brain regions such as the amygdala that are involved in social and ...
The investigators have seen that oxytocin lowers satiety in healthy subjects. Patients with dyspepsia suffers from decreased accommodation and increased satiety postprandially. The investi...
The investigators are going to examine whether oxytocin has a prokinetic effect on gastric emptying in patients suffering from gastro paresis. Oxytocin infusion will be compared with sodiu...
Mothers are given the medication oxytocin after birth to help the uterus (womb) contract and therefore reduce blood loss. In Canada, oxytocin is given either into the muscle of the thigh o...
The purpose of this study is to assess how oxytocin delivered intranasally changes regional brain blood flow measured by positron emission tomography (PET) in conjunction with oxygen-15 la...
Autism spectrum disorder (ASD) is associated with genetic risk on the oxytocin system, suggesting oxytocin involvement in ASD; yet oxytocin functioning in young children with ASD is unknown.
Autism spectrum conditions (autism) affect ~1% of the population and are characterized by deficits in social communication. Oxytocin has been widely reported to affect social-communicative function an...
Oxytocin-in-Uniject satisfied the standards of its temperature-time indicator (TTI) in severe home storage conditions, although that required resupply every 30 days-a logistically onerous programmatic...
Although oxytocin is one of the most widely studied neuropeptides in recent times, the mechanistic process by which it modulates social-affective behaviour in the brain is not yet clearly understood. ...
The neuropeptide oxytocin is implicated in social processing, and recent research has begun to explore how gender relates to the reported effects. This study examined the effects of oxytocin on social...
Medical and Biotech [MESH] Definitions
Cell surface proteins that bind oxytocin with high affinity and trigger intracellular changes which influence the behavior of cells. Oxytocin receptors in the uterus and the mammary glands mediate the hormone's stimulation of contraction and milk ejection. The presence of oxytocin and oxytocin receptors in neurons of the brain probably reflects an additional role as a neurotransmitter.
A childhood disorder predominately affecting boys and similar to autism (AUTISTIC DISORDER). It is characterized by severe, sustained, clinically significant impairment of social interaction, and restricted repetitive and stereotyped patterns of behavior. In contrast to autism, there are no clinically significant delays in language or cognitive development. (From DSM-IV)
A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.
Carrier proteins for OXYTOCIN and VASOPRESSIN. They are polypeptides of about 10-kDa, synthesized in the HYPOTHALAMUS. Neurophysin I is associated with oxytocin and neurophysin II is associated with vasopressin in their respective precursors and during transportation down the axons to the neurohypophysis (PITUITARY GLAND, POSTERIOR).
A hypothalamic tripeptide, enzymatic degradation product of OXYTOCIN, that inhibits the release of MELANOCYTE-STIMULATING HORMONES.