Could a new pill tame Autism-Related irritability in kids?

NCT ID NCT07285798

First seen Jun 27, 2026 · Last updated Jul 01, 2026 · Updated 2 times

Summary

This Phase 3 study tests whether a combination of two drugs, KarXT and KarX-EC, can safely reduce irritability in children and adolescents aged 5 to 17 with autism spectrum disorder. About 176 participants will receive either the drug combo or a placebo for 8 weeks. The main goal is to see if the treatment lowers scores on a standard irritability checklist.

What this could mean

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

Active substance
KarXT (xanomeline/trospium chloride) and KarX-EC (xanomeline enteric-coated)
What this could lead to
If successful, this could provide a new medication option to reduce irritability in children and teens with autism, potentially improving daily functioning and quality of life.
What could go wrong
This is an early-stage Phase 3 trial with only 176 participants, so results may not apply to everyone. The drug may cause side effects or prove no better than placebo.

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

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for AUTISM SPECTRUM DISORDER are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

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

  • Local Institution - 0003

    Pittsburgh, Pennsylvania, 15213, United States

  • Local Institution - 0009

    Orem, Utah, 84097, United States

  • Local Institution - 0013

    Glendale, California, 91203, United States

  • Local Institution - 0014

    Chicago, Illinois, 60622, United States

  • Local Institution - 0016

    Columbia, Missouri, 65201, United States

  • Local Institution - 0019

    Everett, Washington, 98201, United States

  • Local Institution - 0038

    Staten Island, New York, 10312, United States

  • Local Institution - 0046

    Lincoln, Nebraska, 68526, United States

  • Local Institution - 0051

    Lexington, Massachusetts, 02421, United States

  • Local Institution - 0052

    Cincinnati, Ohio, 45229, United States

  • Local Institution - 0062

    Phoenix, Arizona, 85006, United States

  • Local Institution - 0080

    Orlando, Florida, 32803, United States

  • Local Institution - 0084

    Madrid, 28007, Spain

  • Local Institution - 0085

    Barcelona, Barcelona [Barcelona], 08035, Spain

  • Local Institution - 0086

    Madrid, 28031, Spain

  • Local Institution - 0087

    Barcelona, Catalunya [Cataluña], 08036, Spain

  • Local Institution - 0088

    Eysines, 33320, France

  • Local Institution - 0089

    Paris, 75019, France

  • Local Institution - 0090

    Hirakata, Osaka, 573-0022, Japan

  • Local Institution - 0091

    Ōta-ku, Tokyo, 146-0095, Japan

  • Local Institution - 0093

    Yokohama, Kanagawa, 213-8507, Japan

  • Local Institution - 0094

    Miyakonojō, Miyazaki, 885-0093, Japan

  • Local Institution - 0095

    Yoshinogari-cho, Kanzaki-gun, Saga-ken, 842-0192, Japan

  • Local Institution - 0096

    Kozhikode, Kerala, 673009, India

  • Local Institution - 0097

    Kolkata, West Bengal, 700020, India

  • Local Institution - 0101

    Sakri, Maharashtra, 441108, India

  • Local Institution - 0102

    Bron, 69678, France

  • Local Institution - 0103

    Gdansk, 80-546, Germany

  • Local Institution - 0104

    Katowice, 40-146, Poland

  • Local Institution - 0105

    Wroclaw, Lower Silesian Voivodeship, 54-234, Poland

  • Local Institution - 0106

    Gdansk, Pomeranian Voivodeship, 80-542, Poland

  • Local Institution - 0107

    Warsaw, Masovian Voivodeship, 02-957, Poland

  • Local Institution - 0108

    Poznan, Greater Poland Voivodeship, 60-744, Poland

  • Local Institution - 0109

    Kraśnik, Lublin Voivodeship, 23-210, Poland

  • Local Institution - 0110

    Szeged, 6720, Hungary

  • Local Institution - 0111

    Budapest, 1021, Hungary

  • Local Institution - 0112

    Siófok, 8600, Hungary

  • Local Institution - 0113

    Szczecin, West Pomeranian Voivodeship, 70-419, Poland

  • Local Institution - 0114

    Neptune City, New Jersey, 07753-4859, United States

  • Local Institution - 0115

    San Juan Capistrano, California, 92675, United States

  • Local Institution - 0116

    San Rafael, California, 94903, United States

  • Local Institution - 0117

    Los Angeles, California, 90095, United States

  • Local Institution - 0118

    Bucharest, Bucharest, 030167, Romania

  • Local Institution - 0119

    Sibiu, 550082, Romania

  • Local Institution - 0120

    Bucharest, Bucharest, 041914, Romania

  • Local Institution - 0121

    Iași, 700282, Romania

  • Local Institution - 0122

    Timișoara, 300329, Romania

  • Local Institution - 0123

    Cluj-Napoca, 0, Romania

  • Local Institution - 0124

    Bucharest, 031871, Romania

  • Local Institution - 0125

    Spring, Texas, 77381, United States

  • Local Institution - 0126

    Orange, California, 92868, United States

  • Local Institution - 0127

    Budapest, 1143, Hungary

  • Local Institution - 0129

    Szczecin, West Pomeranian Voivodeship, 70-419, Poland

  • Local Institution - 0130

    New Haven, Connecticut, 06519, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.