Which autism therapy works best? new study aims to find out
NCT ID NCT07522190
First seen Jun 25, 2026 · Last updated Jul 09, 2026 · Updated 3 times
Summary
This study compares two well-known early autism interventions, ESDM and PRT, to see which one helps young children with autism improve their communication skills more. Researchers will enroll 140 children aged 2 to 5 and randomly assign them to one of the two therapies for 24 weeks. The goal is to identify which children benefit most from each approach, potentially leading to more personalized treatment plans.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- behavioral intervention (Early Start Denver Model and Pivotal Response Treatment)
- What this could lead to
- If successful, this study could help doctors choose the best therapy for each child with autism, improving communication skills more effectively.
- What could go wrong
- This is an early-stage comparison study, not a treatment trial. Results may not apply to all children, and individual responses can vary widely.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 140 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jan 2027
An estimate. Start dates often move.
- Expected to finish
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Jan 2037
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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2 to 4 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Children must be between 2 and 4 years, 11 months of age at enrollment * Confirmed diagnosis of autism spectrum disorder based on standardized diagnostic assessments and clinical judgment * Demonstrated significant language delay as determined by standardized language measures * Ability to participate in study assessments and intervention procedures * At least one English-speaking parent or caregiver available to participate in parent training and research measures * Receiving stable community-based treatments or medications for at least one month prior to baseline, with no anticipated changes during the study period Exclusion Criteria: * Current or lifetime diagnosis of a severe psychiatric disorder (e.g., bipolar disorder) * Presence of an active or unstable medical condition (e.g., uncontrolled seizure disorder or significant cardiac disease) * Child's primary language is not English * Prior adequate trial of PRT or ESDM * Receipt of more than 15 hours per week of in-home applied behavior analysis services * Inability to complete study assessments or procedures to obtain valid data
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Stanford University
Palo Alto, California, 94305-5719, United States
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