A Dose-Finding Study of MM-120 (LSD D-Tartrate) for the Treatment of Anxiety Symptoms

NCT ID: NCT05407064

Last Updated: 2025-09-05

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

198 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-24

Study Completion Date

2023-11-27

Brief Summary

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This is a Phase 2, multi-center, randomized, double-blind, parallel-group, dose-finding study to assess the effect of 4 doses of MM-120 (25, 50, 100 or 200 μg freebase-equivalent) for the treatment of anxiety symptoms in subjects diagnosed with generalized anxiety disorder (GAD).

Detailed Description

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The study will enroll approximately 200 male and female subjects 18 years to \< 75 years of age who meet DSM-5 criteria for GAD and have a minimum HAM-A Total Score of 20. Subjects on contraindicated concomitant medications, supplements or other therapeutics at Screening (Visit 1) will undergo a medication taper prior to advancing to Baseline (Visit 2).

Conditions

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Anxiety Generalized

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Arm 1- Placebo

A substance that is designed to have no therapeutic value.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

A substance that is designed to have no therapeutic value.

Arm 2- 25 μg MM-120 (LSD D-Tartrate)

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Group Type EXPERIMENTAL

MM-120 (LSD D-Tartrate)

Intervention Type DRUG

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Arm 3- 50 μg MM-120 (LSD D-Tartrate)

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Group Type EXPERIMENTAL

MM-120 (LSD D-Tartrate)

Intervention Type DRUG

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Arm 4- 100 μg MM-120 (LSD D-Tartrate)

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Group Type EXPERIMENTAL

MM-120 (LSD D-Tartrate)

Intervention Type DRUG

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Arm 5- 200 μg MM-120 (LSD D-Tartrate)

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Group Type EXPERIMENTAL

MM-120 (LSD D-Tartrate)

Intervention Type DRUG

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Interventions

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MM-120 (LSD D-Tartrate)

A psychoactive substance that mediates effects mainly through an agonist activity in the serotonin 2A receptor (5-HT2A).

Intervention Type DRUG

Placebo

A substance that is designed to have no therapeutic value.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Bodyweight of ≥ 50 kg
* Body mass index \[BMI\] ≥ 18 to ≤ 38 mg/kg2
* Diagnosis of DSM-5 generalized anxiety disorder
* Acceptable overall medical condition to be safely enrolled into and to complete the study
* Ability to swallow capsules
* Ability to provide informed consent

Exclusion Criteria

* Women of childbearing potential (WOCBP) (i.e., physiologically capable of becoming pregnant) who are unwilling or unable to use a highly effective method of contraception for the duration of the study, OR Men physiologically capable of fathering a child who are sexually active with WOCBP but are unwilling or unable to use barrier contraception (e.g., condom with or without spermicidal cream or jelly) for the duration of the study
* Women who are currently pregnant or breastfeeding or plan to become pregnant or breastfeed during the study
* Men who plan to donate sperm during the study
* Prior history (lifetime diagnosis) with a lifetime diagnosis of schizophrenia spectrum, or other psychotic disorders or bipolar disorder
* Has a significant risk of suicide attempt based upon medical history or has active suicidal ideation
* Unwillingness or inability to discontinue prohibited concomitant medications, supplements or other therapeutics (prescription or over-the-counter)
Minimum Eligible Age

18 Years

Maximum Eligible Age

74 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mind Medicine, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Preferred Research Partners

Little Rock, Arkansas, United States

Site Status

Irvine Center for Clinical Research

Irvine, California, United States

Site Status

Kadima Neuropsychiatry Institute

La Jolla, California, United States

Site Status

Pacific Neuroscience Institute

Santa Monica, California, United States

Site Status

Mountain View Clinical Research

Denver, Colorado, United States

Site Status

Wholeness Center

Fort Collins, Colorado, United States

Site Status

Segal Trials

Lauderhill, Florida, United States

Site Status

CNS Healthcare - Orlando

Orlando, Florida, United States

Site Status

iResearch Atlanta

Decatur, Georgia, United States

Site Status

Great Lakes Clinical Trials

Chicago, Illinois, United States

Site Status

Uptown Research

Chicago, Illinois, United States

Site Status

Sunstone Therapies

Rockville, Maryland, United States

Site Status

SISU

Springfield, Massachusetts, United States

Site Status

Adams Clinical

Watertown, Massachusetts, United States

Site Status

Hassman Research Institute

Berlin, New Jersey, United States

Site Status

GMI - Princeton Medical Institute

Princeton, New Jersey, United States

Site Status

Lutheran Hospital - Cleveland Clinic

Cleveland, Ohio, United States

Site Status

BioBehavioral Research of Austin

Austin, Texas, United States

Site Status

University of Texas Health Houston

Houston, Texas, United States

Site Status

Cedar Clinical Research

Draper, Utah, United States

Site Status

Cedar Clinical Research - Murray

Murray, Utah, United States

Site Status

Woodstock Research Center

Woodstock, Vermont, United States

Site Status

Countries

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United States

References

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Robison R, Barrow R, Conant C, Foster E, Freedman JM, Jacobsen PL, Jemison J, Karas SM, Karlin DR, Solomon TM, Halperin Wernli M, Fava M. Single Treatment With MM120 (Lysergide) in Generalized Anxiety Disorder: A Randomized Clinical Trial. JAMA. 2025 Sep 4:e2513481. doi: 10.1001/jama.2025.13481. Online ahead of print.

Reference Type DERIVED
PMID: 40906494 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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MMED008

Identifier Type: -

Identifier Source: org_study_id

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