A Phase 3 Trial of MM120 for Generalized Anxiety Disorder (Voyage)

Last updated: April 30, 2026
Sponsor: Definium Therapeutics US, Inc.
Overall Status: Active - Not Recruiting

Phase

3

Condition

Anxiety Disorders

Mood Disorders

Panic Disorders

Treatment

Placebo

MM120 (LSD D-Tartrate)

Clinical Study ID

NCT06741228
MM120-300
  • Ages 18-74
  • All Genders

Study Summary

A Phase 3 Double-blind, Placebo-controlled Study (Part A) with an Open-label Extension (Part B) Evaluating MM120 Compared to Placebo in Generalized Anxiety Disorder - Voyage

Eligibility Criteria

Inclusion

Inclusion Criteria:

  1. Diagnosis of GAD per DSM-5

  2. Male or female aged 18 to 74

  3. HAM-A Total Score ≥20

Exclusion

Exclusion Criteria:

  1. Certain psychiatric disorders (other than generalized anxiety disorder)

  2. First degree relative with or lifetime history of a psychotic disorder or bipolardisorder

  3. Current diagnosis of alcohol or substance use disorder (excluding nicotine andcaffeine)

  4. Any clinically significant unstable illness

Study Design

Total Participants: 214
Treatment Group(s): 2
Primary Treatment: Placebo
Phase: 3
Study Start date:
December 11, 2024
Estimated Completion Date:
November 30, 2026

Study Description

The study will enroll up to 200 participants aged 18 to 74 years, inclusive with a Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) confirmed primary diagnosis of GAD and a minimum HAM-A total score of at least 20 at Screening and Baseline without clinically relevant medical or psychiatric history.

The study consists of a 12-week randomized, double-blind, single-dose administration period evaluating MM120 versus placebo, followed by a 40-week extension phase with the opportunity for open-label treatment. During this phase, participants will be monitored and evaluated for potential treatment with MM120 based on pre-specified safety and symptom severity criteria.

Connect with a study center

  • Lighthouse Psychiatry

    Gilbert, Arizona 85234
    United States

    Site Not Available

  • Scottsdale Research Institute

    Scottsdale, Arizona 85022
    United States

    Site Not Available

  • Lighthouse Psychiatry

    Gilbert 5295903, Arizona 5551752 85234
    United States

    Site Not Available

  • Scottsdale Research Institute

    Scottsdale 5313457, Arizona 5551752 85022
    United States

    Site Not Available

  • Kadima Neuropsychiatry Institute

    La Jolla, California 92037
    United States

    Site Not Available

  • UCSF Department of Neurology

    San Francisco, California 94158
    United States

    Site Not Available

  • Pacific Neuroscience Institute

    Santa Monica, California 90404
    United States

    Site Not Available

  • Psychedelic Science Institute

    Santa Monica, California 90404
    United States

    Site Not Available

  • Kadima Neuropsychiatry Institute

    La Jolla 5363943, California 5332921 92037
    United States

    Site Not Available

  • UCSF Department of Neurology

    San Francisco 5391959, California 5332921 94158
    United States

    Site Not Available

  • Psychedelic Science Institute

    Santa Monica 5393212, California 5332921 90404
    United States

    Site Not Available

  • Mountain View

    Denver, Colorado 80209
    United States

    Site Not Available

  • Mountain View

    Denver 5419384, Colorado 5417618 80209
    United States

    Site Not Available

  • Clinical Neuroscience Solutions Inc.

    Jacksonville, Florida 32256
    United States

    Site Not Available

  • Accel Research Sites - Lakeland CRU

    Lakeland, Florida 33803
    United States

    Site Not Available

  • Segal Trials

    Lauderhill, Florida 33319
    United States

    Site Not Available

  • Clinical Neuroscience Solutions Inc.

    Jacksonville 4160021, Florida 4155751 32256
    United States

    Site Not Available

  • Accel Research Sites - Lakeland CRU

    Lakeland 4161438, Florida 4155751 33803
    United States

    Site Not Available

  • Segal Trials

    Lauderhill 4161625, Florida 4155751 33319
    United States

    Site Not Available

  • Atlanta Center for Medical Research

    Atlanta, Georgia 30331
    United States

    Site Not Available

  • iResearch Atlanta

    Decatur, Georgia 30030
    United States

    Site Not Available

  • CenExel iResearch, LLC

    Savannah, Georgia 31405
    United States

    Site Not Available

  • Kendall.chaves@accelclinical.com

    Savannah, Georgia 31405
    United States

    Site Not Available

  • Atlanta Center for Medical Research

    Atlanta 4180439, Georgia 4197000 30331
    United States

    Site Not Available

  • iResearch Atlanta

    Decatur 4191124, Georgia 4197000 30030
    United States

    Site Not Available

  • CenExel iResearch, LLC

    Savannah 4221552, Georgia 4197000 31405
    United States

    Site Not Available

  • Uptown Research Institute

    Chicago, Illinois 60640
    United States

    Site Not Available

  • Uptown Research Institute

    Chicago 4887398, Illinois 4896861 60640
    United States

    Site Not Available

  • DelRicht Research

    Baton Rouge, Louisiana 70810
    United States

    Site Not Available

  • DelRicht Research

    New Orleans, Louisiana 70115
    United States

    Site Not Available

  • Adams Clinical Boston

    Boston, Massachusetts 02116
    United States

    Site Not Available

  • Copley Clinical

    Boston, Massachusetts 02116
    United States

    Site Not Available

  • Adams Clinical

    Watertown, Massachusetts 02472
    United States

    Active - Recruiting

  • Adams Clinical Watertown

    Watertown, Massachusetts 02472
    United States

    Site Not Available

  • Adams Clinical Boston

    Boston 4930956, Massachusetts 6254926 02116
    United States

    Site Not Available

  • Adams Clinical Watertown

    Watertown 4954611, Massachusetts 6254926 02472
    United States

    Site Not Available

  • University of Missouri Health Care

    Columbia, Missouri 65212
    United States

    Site Not Available

  • University of Missouri Health Care

    Columbia 4381982, Missouri 4398678 65212
    United States

    Site Not Available

  • Hassman Research Institute

    Marlton, New Jersey 08053
    United States

    Site Not Available

  • Hassman Research Institute

    Marlton 4502911, New Jersey 5101760 08053
    United States

    Site Not Available

  • Adams Clinical Bronx

    Bronx, New York 10461
    United States

    Site Not Available

  • Adams Clinical Harlem

    New York, New York 10029
    United States

    Site Not Available

  • New York State Psychiatric Institute (NYSPI)

    New York, New York 10032
    United States

    Site Not Available

  • Spectrum Neuroscience and Treatment Institute

    New York, New York 10021
    United States

    Site Not Available

  • Adams Clinical Bronx

    The Bronx, New York 10461
    United States

    Site Not Available

  • Adams Clinical Harlem

    New York 5128581, New York 5128638 10029
    United States

    Active - Recruiting

  • New York State Psychiatric Institute (NYSPI)

    New York 5128581, New York 5128638 10032
    United States

    Site Not Available

  • Spectrum Neuroscience and Treatment Institute

    New York 5128581, New York 5128638 10021
    United States

    Site Not Available

  • Adams Clinical Bronx

    The Bronx 5110266, New York 5128638 10461
    United States

    Site Not Available

  • Cleveland Clinic Lutheran Hospital

    Cleveland, Ohio 44113
    United States

    Site Not Available

  • Cleveland Clinic Lutheran Hospital

    Cleveland 5150529, Ohio 5165418 44113
    United States

    Site Not Available

  • Summit Headlands LLC

    Portland, Oregon 97210
    United States

    Site Not Available

  • Summit Headlands LLC

    Portland 5746545, Oregon 5744337 97210
    United States

    Site Not Available

  • Scranton Medical Institute

    Moosic, Pennsylvania 18507
    United States

    Site Not Available

  • Adams Clinical Philadelphia

    Philadelphia, Pennsylvania 19104
    United States

    Site Not Available

  • Scranton Medical Institute

    Moosic 5201901, Pennsylvania 6254927 18507
    United States

    Site Not Available

  • Adams Clinical Philadelphia

    Philadelphia 4560349, Pennsylvania 6254927 19104
    United States

    Site Not Available

  • Coastal Carolina Research Center

    North Charleston, South Carolina 29405
    United States

    Site Not Available

  • Coastal Carolina Research Center

    North Charleston 4589387, South Carolina 4597040 29405
    United States

    Site Not Available

  • Clinical Neuroscience Solutions, Inc.

    Memphis, Tennessee 38119
    United States

    Site Not Available

  • Clinical Neuroscience Solutions, Inc.

    Memphis 4641239, Tennessee 4662168 38119
    United States

    Site Not Available

  • Austin Clinical Trial Partners

    Austin, Texas 78737
    United States

    Site Not Available

  • BioBehavioral Research of Austin

    Austin, Texas 78759
    United States

    Site Not Available

  • Dell Medical School, University of Texas at Austin

    Austin, Texas 78712
    United States

    Active - Recruiting

  • University of Texas at Austin

    Austin, Texas 78712
    United States

    Site Not Available

  • FutureSearch Trials of Dallas, LLC

    Dallas, Texas 75231
    United States

    Site Not Available

  • Adams Clinical Dallas

    DeSoto, Texas 75115
    United States

    Site Not Available

  • Austin Clinical Trial Partners

    Austin 4671654, Texas 4736286 78737
    United States

    Site Not Available

  • BioBehavioral Research of Austin

    Austin 4671654, Texas 4736286 78759
    United States

    Terminated

  • Dell Medical School, University of Texas at Austin

    Austin 4671654, Texas 4736286 78712
    United States

    Active - Recruiting

  • University of Texas at Austin

    Austin 4671654, Texas 4736286 78712
    United States

    Site Not Available

  • FutureSearch Trials of Dallas, LLC

    Dallas 4684888, Texas 4736286 75231
    United States

    Site Not Available

  • Adams Clinical Dallas

    DeSoto 4685524, Texas 4736286 75115
    United States

    Site Not Available

  • Cedar Clinical Research

    Draper, Utah 84020
    United States

    Site Not Available

  • Inner Space Research

    Orem, Utah 84058
    United States

    Site Not Available

  • Cedar Clinical Research

    Draper 5774001, Utah 5549030 84020
    United States

    Site Not Available

  • Inner Space Research

    Orem 5779334, Utah 5549030 84058
    United States

    Site Not Available

  • Memory Clinic Inc.

    Bennington, Vermont 05201
    United States

    Site Not Available

  • Memory Clinic Inc.

    Bennington 5233742, Vermont 5242283 05201
    United States

    Site Not Available

  • Seattle Neuropsychiatric Treatment Center

    Seattle, Washington 98104
    United States

    Site Not Available

  • Seattle Neuropsychiatric Treatment Center

    Seattle 5809844, Washington 5815135 98104
    United States

    Site Not Available

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