Which ADHD drug works best for preschoolers? new study aims to find out.

NCT ID NCT07300956

First seen Jan 07, 2026 · Last updated May 19, 2026 · Updated 18 times

Summary

This study compares two medications, methylphenidate and guanfacine, to see which works better for treating ADHD in children ages 3 to 5. Researchers will measure how much symptoms improve and how many children stop the medicine early. The goal is to find the safest and most effective option for young kids.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Boston Children's Hospital

    Boston, Massachusetts, 02115, United States

    Contact

    Contact Email: •••••@•••••

  • Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, 19104, United States

    Contact Email: •••••@•••••

    Contact

  • Children's Mercy Hospital

    Kansas City, Missouri, 64108, United States

    Contact Email: •••••@•••••

    Contact

  • Cincinnati Children's Hospital Medical Center

    Cincinnati, Ohio, 45229, United States

    Contact Email: •••••@•••••

    Contact

  • Stanford Medicine Children's Health

    Palo Alto, California, 94304, United States

    Contact

    Contact Email: •••••@•••••

Conditions

Explore the condition pages connected to this study.