Research Lacking on Drugs for Older Children With Autism,
Study Finds Majority seem to be 'taking medications we have very little evidence for,'
By Serena Gordon HealthDay Reporter
MONDAY, Sept. 24 (HealthDay News) -- More and more children are growing up with
autism, and although many treatments and interventions are now available, clinical studies
on the use of medications in teens and young adults are lacking, according to new research.
"The majority of (older) individuals with autism spectrum disorders appear to be taking
medications that we have very little evidence for," said the study's lead author, Dr. Jeremy
Veenstra-VanderWeele, medical director of the Treatment and Research Institute for Autism
Spectrum Disorders at the Vanderbilt Brain Institute in Nashville, Tenn.
"In the absence of sufficient evidence, parents and people with autism should find a clinician
who tells you what's known and unknown about the potential benefits and risks of any
medication," he said. "It should be a shared decision-making process."
Results of the study were published online on Sept. 24 in the journal Pediatrics
Autism spectrum disorders are neurodevelopmental disorders that impair social
development and communication. Autism spectrum disorders also may cause repetitive
movements and even self-abusive behavior, such as head banging, according to the U.S.
National Institute of Neurological Disorders and Stroke (NINDS).
It is estimated that about one in 88 American children has been identified with an autism
As children with autism age, some do experience significant improvements, according to
NINDS, but many do not. There is no cure for autism, although there are many treatments
available, including education and behavioral interventions and medications.
Medications usually are used to treat some of the symptoms associated with autism, rather
than the core symptoms of the condition, according to background information in the new
study. For example, the medication risperidone (brand name Risperdal) may be used to
treat behavioral symptoms associated with autism, such as aggression, outbursts and
irritability, said Dr. Melissa Nishawala, medical director of the Autism Spectrum Disorders
Clinical and Research Program at the NYU Child Study Center in New York City.
"Medications like risperidone and aripiprazole don't address the cause of autism, but they
help calm down [people with autism]," Veenstra-VanderWeele said.
For the new study, the researchers reviewed medical literature from 1980 through 2011 to
find clinical trials on drugs for people with autism between the ages of 13 and 30 years old.
They found eight studies with at least 20 participants. Two investigators independently
assessed the quality of the studies.
The researchers said they found four studies of fair quality while the other four were poor.
The studies included reviews of antipsychotic medications, such as risperidone and
haloperidol (Haldol); serotonin reuptake inhibitors, such as fluvoxamine (Luvox) and
clomipramine (Anafranil); and opioid receptor agonists, such as naltrexone (Depade).
The researchers felt that, overall, there wasn't enough data on medications in the teen and
young adult autism population. Risperidone wasn't well studied in teens and young adults,
but there was evidence for its use if the entire pediatric population was considered, the
Although behavioral and educational interventions weren't included in the new study,
Veenstra-VanderWeele said he suspects there's a lack of evidence for these types of
treatments in older children and young adults too.
"We really don't know if intensive behavior interventions continue to benefit individuals as
they get older," he said.
NYU's Nishawala said: "The most important thing for parents to take away is that we know
there are a few medications that have been studied that can help. Certain symptoms like
irritability, agitation and aggression can be controlled with medications, but there's lesser
evidence that repetitive behaviors can be treated."
Nishawala added that although she and others who treat older children and young adults
with autism would love to have more evidence-based research on the medications they use,
it can be difficult to get parents and older children to participate in clinical trials when
medications are already available to them for what's known as "off-label" use. That's when
doctors prescribe medications for a condition for which the drug has yet to receive U.S.
Food and Drug Administration approval.
In addition, she said, it's difficult to get funding for trials, particularly when a drug already
has been approved. More information
Learn more about autism and teens from the
It is a paradox of the work of Artificial Intelligence that in order to grant con-sciousness to machines, the engineers first labour to subtract it from humans, asthey work to foist upon philosophers a caricature of consciousness in the digitalswitches of weights and gates in neural nets. As the caricature goes into publiccirculation with the help of the media, it becomes an acceptable counter
Findings ____________________________________________________________ The provision of school food in 18 countries _____________________________________________________________ This paper compares the provision of school food in 18 different countries around the world, with a focus on funding, catering providers, costs, free school meals (FSM), school meal take up and th