Light therapy headband shows promise for autism in small trial

NCT ID NCT05363982

Completed Symptom relief Sponsor: Massachusetts General Hospital Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a device called transcranial photobiomodulation (tPBM), which shines invisible light on the front of the brain through a headband. Researchers wanted to see if it is safe and can improve social and behavioral symptoms in adults with autism. Forty-one adults took part in an 8-week double-blind, placebo-controlled trial at Massachusetts General Hospital.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: transcranial photobiomodulation (tPBM) device
What this could lead to: If it works, this could offer a non-invasive, drug-free option to help ease core autism symptoms in adults.
What could go wrong: This was a small, early-stage study with only 41 participants. The device may not work better than a placebo, and results may not apply to everyone with autism.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

autism autism spectrum disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

AUTISM SPECTRUM DISORDER

Contacts and locations

Locations

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

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