New ADHD pill aims to control symptoms for 16 hours

NCT ID NCT05631626

First seen Jul 02, 2026 ยท Last updated Jul 02, 2026

Summary

This phase 3 trial tests whether a new formulation of dexmethylphenidate (CTx-1301) can improve attention and reduce ADHD symptoms in adults for up to 16 hours. Participants take an optimized dose (25, 37.5, or 50 mg) and complete math tests in a simulated classroom. The study compares the drug's effects against a placebo to see if it offers longer-lasting symptom control.

What this could mean

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

Active substance
CTx-1301 (dexmethylphenidate)
What this could lead to
If successful, this could provide a longer-lasting, once-daily treatment option for adults with ADHD, improving attention and symptom control throughout the day.
What could go wrong
This is a small, single-center trial. The drug may not show significant benefit over placebo, and side effects common to stimulants (e.g., insomnia, appetite loss) may occur.

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.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Clinical Research of Southern Nevada, LLC

    Las Vegas, Nevada, 89128, United States

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