Clinical trial Recruiting at 58 sites Phase 3 Interventional Ages 55 to 90

Long-term KarXT plus KarX-EC treatment for agitation in Alzheimer’s disease

Official title: A Phase 3, Open-label Extension Study to Evaluate the Long-term Safety and Tolerability of KarXT + KarX-EC for the Treatment of Agitation Associated With Alzheimer's Disease (ADAGIO-3)

Run by Bristol-Myers Squibb · NCT06937229 · Data updated 2026-11-12

This will test whether taking KarXT together with KarX-EC reduces agitation and is safe long-term in people with Alzheimer’s disease who completed the earlier parent studies.

More Alzheimer Disease trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages55 Years to 90 Years
SexAll
Enrollment650 (estimated)
SponsorBristol-Myers Squibb
Industry-sponsored
Locations252 sites (Chandler, Arizona and 251 other locations)
StatusRecruiting
StartedDecember 2, 2025
Main results expectedJune 22, 2029
Study endsJuly 20, 2029
Registry record updatedOctober 16, 2026
Trial IDNCT06937229 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

People with Alzheimer’s who experienced agitation, completed parent studies CN012-0023 or CN012-0024, and have a caregiver who can provide regular contact and support are the intended participants.

Probably not a fit

People with unstable or clinically significant cardiovascular, pulmonary, renal, neurological, or other serious medical conditions, or those who did not participate in the parent studies, are unlikely to be eligible or to benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 3 interventional trial enrolls participants who completed parent studies CN012-0023 or CN012-0024 to receive a combined regimen of immediate-release KarXT and enteric KarX-EC capsules over an extended treatment period. Efficacy for agitation symptoms will be tracked alongside systematic safety monitoring, including cardiovascular and other adverse events, with regular clinic visits and caregiver-reported outcomes. An identified caregiver with approximately 10 hours per week contact is required to provide collateral information and support study procedures. The trial is sponsored by Bristol-Myers Squibb and conducted at selected U.S. clinical sites.

Why it matters

Potential benefit: If successful, this could provide a new long-term oral option to reduce agitation in people with Alzheimer’s and ease caregiver burden.

How similar studies have gone: Short-term trials of xanomeline formulations have shown promise for neuropsychiatric symptoms, and this trial builds on those findings by testing long-term combined KarXT/KarX-EC treatment.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants must have completed study CN012-0023 or CN012-0024 per protocol.
* Participants must have an identified caregiver who has sufficient contact (approximately 8 hours over a week).

Exclusion Criteria:

* Participants must not have clinically significant cardiovascular (eg, untreated or unstable hypertension, clinically significant tachycardia), pulmonary, renal, hematologic, GI, endocrine, immunologic, dermatologic, neurologic, or oncologic disease or any other condition that, in the opinion of the investigator, would jeopardize the safety of the participant or the validity of the study results.
* Other protocol-defined Inclusion/Exclusion criteria apply.

Where it's running

  • Imaging Endpoints
    Scottsdale, Arizona, United States
    Recruiting
  • Nuovida Research Center
    Miami, Florida, United States
    Recruiting
  • Progressive Medical Research
    Port Orange, Florida, United States
    Recruiting
  • IPTB Clinical Research
    Tampa, Florida, United States
    Recruiting
  • Hope Research Network - Miami
    Virginia Gardens, Florida, United States
    Recruiting
  • Boston Center for Memory
    Newton, Massachusetts, United States
    Recruiting
Show 44 more locations
  • Redbird Research
    Las Vegas, Nevada, United States
    Recruiting
  • West Clinical Research
    Morehead City, North Carolina, United States
    Recruiting
  • Epic Medical Research, LLC - Carrolton
    Carrollton, Texas, United States
    Recruiting
  • Horizon Clinical Research Center - Houston
    Cypress, Texas, United States
    Recruiting
  • Advanced Neurology Epilepsy and Sleep Center
    El Paso, Texas, United States
    Recruiting
  • Hospital Moinhos de Vento
    Porto Alegre, Rio Grande do Sul, Brazil
    Recruiting
  • CPQuali Pesquisa Clínica
    São Paulo, Brazil
    Recruiting
  • Medical Center Sveti Naum EOOD
    Sofia, Bulgaria
    Recruiting
  • Ontario Shores Centre For Mental Health Sciences
    Whitby, Ontario, Canada
    Recruiting
  • Nanjing Drum Tower hospital
    Nanjing, Jiangsu, China
    Recruiting
  • AGE Centrum
    Olomouc, Olomouc Region, Czechia
    Recruiting
  • Neuro Health Centrum s.r.o.
    Brno, South Moravian, Czechia
    Recruiting
  • Centre Hospitalier Universitaire Toulouse - Cité de la Santé
    Toulouse, Haute-Garonne, France
    Recruiting
  • Sanz MC, Laniado Hospital
    Netanya, Israel
    Recruiting
  • Bayit Balev Ltd.
    Rishon Le'Tzion, Israel
    Recruiting
  • Auxologico IRCCS - Auxologico San Luca
    Milan, Lombardy, Italy
    Recruiting
  • Hatano Kousei Hospital
    Hadano, Kanagawa, Japan
    Recruiting
  • Asakayama Hospital
    Sakai, Osaka, Japan
    Recruiting
  • National Hospital Organization Hizen Psychiatric Center
    Kanzaki-Gun Yoshinogari-Cho, Saga-ken, Japan
    Recruiting
  • Rainbow and Sea Hospital
    Karatsu-shi, Saga-ken, Japan
    Recruiting
  • Nippon Medical School Hospital
    Bunkyo-ku, Tokyo, Japan
    Recruiting
  • Kuramitsu Hospital
    Fukuoka, Japan
    Recruiting
  • Okayama City General Medical Center Okayama City Hospital
    Okayama, Japan
    Recruiting
  • Jichi Medical University Hospital
    Shimotsuke-shi, Tochigi, Japan
    Recruiting
  • Boca Clinical Trials Mexico S.C.
    Guadalajara, Jalisco, Mexico
    Recruiting
  • AVIX Investigacion Clinica
    Monterrey, Nuevo León, Mexico
    Recruiting
  • Neurociencias PRISMA A.C.
    San Luis Potosí City, Mexico
    Recruiting
  • Centrum Medyczne NEUROMED
    Bydgoszcz, Kuyavian-Pomeranian Voivodeship, Poland
    Recruiting
  • RCMed Oddzial Sochaczew
    Sochaczew, Poland
    Recruiting
  • Inha University Hospital
    Incheon, Incheon Gwang'yeogsi, South Korea
    Recruiting
  • Seoul National University Hospital
    Seoul, Seoul-teukbyeolsi [Seoul], South Korea
    Recruiting
  • Gangnam Severance Hospital, Yonsei University Health System
    Seoul, South Korea
    Recruiting
  • The Catholic University of Korea, Yeouido St.Mary's Hospital
    Seoul, South Korea
    Recruiting
  • Oroitu CAE
    Getxo, Bizkaia, Spain
    Recruiting
  • Hospital Clinico San Carlos
    Madrid, Spain
    Recruiting
  • Hospital Clinico Universitario Virgen de La Victoria
    Málaga, Spain
    Recruiting
  • Hospital Universitario de Salamanca - Complejo Asistencial Universitario de Salamanca
    Salamanca, Spain
    Recruiting
  • Hospital Mutua Terrassa
    Terrassa, Spain
    Recruiting
  • Hospital Universitario De Rio Hortega
    Valladolid, Spain
    Recruiting
  • Taipei Veterans General Hospital
    Taipei, Taiwan
    Recruiting
  • Communal non-commercial enterprise "Cherkasy regional psychiatric hospital of Cherkasy regional council"
    Smila, Cherkasy Oblast, Ukraine
    Recruiting
  • MUNICIPAL NON-COMMERCIAL COMPANY Dnipropetrovsk Multiprofile Clinical Hospital for Provision of Psychiatric Care DRC
    Dnipro, Dnipropetrovsk Oblast, Ukraine
    Recruiting
  • Municipal Non-Commercial Enterprise "Khmelnytskyi Regional Psychiatric Care Facility" of the Khmelnytskyi Regional Council
    Skarzhyntsi, Khmelnytskyi Oblast, Ukraine
    Recruiting
  • Communal non-commercial enterprise of the Kyiv Regional Council "Regional Psychiatric-Narcological Medical Association"
    Hlevakha, Kyiv Oblast, Ukraine
    Recruiting

+202 more sites. See ClinicalTrials.gov for the full list.

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.