ENCALM: A Study of ENX-102 as a Monotherapy Treatment in Patients With Generalized Anxiety Disorder

NCT ID: NCT05749055

Last Updated: 2025-09-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

252 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-03

Study Completion Date

2025-09-18

Brief Summary

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The ENCALM trial is designed to evaluate the efficacy and safety of ENX-102 in patients diagnosed with generalized anxiety disorder (GAD)

Detailed Description

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Conditions

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Generalized Anxiety Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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ENX-102

Four weeks of 2 mg of ENX-102 in capsule form followed by 3 weeks of tapered dose plus 2 weeks of placebo in capsule form (before and/or after the ENX-102 treatment period), taken orally once daily in the evening for a 9-week total treatment period.

Group Type EXPERIMENTAL

ENX-102

Intervention Type DRUG

Selective GABA-A alpha2,3,5 positive allosteric modulator

Placebo

Nine weeks of placebo in capsule form taken orally once daily in the evening for a 9-week total treatment period.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo

Interventions

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ENX-102

Selective GABA-A alpha2,3,5 positive allosteric modulator

Intervention Type DRUG

Placebo

Placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Male or female at birth, inclusive of any gender identity, aged 18 to 65 years, inclusive, at Screening
* Diagnosed with GAD according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), confirmed by a Mini-International Neuropsychiatric Interview (MINI) version 7.0.2
* Experiencing clinically significant generalized anxiety in need of treatment as measured by Hamilton Anxiety Rating Scale (HAM-A) Screening and Day 1 scores ≥22 and at least moderately severe score symptoms of anxious mood and tension as measured by HAM-A items 1 and 2, respectively, with score each ≥2 at Screening and Day 1

Exclusion Criteria

* Clinically predominant psychiatric diagnosis other than GAD as confirmed by the MINI
* Any past/lifetime/current diagnosis of a neurocognitive disorder, or psychotic disorder, or any current diagnosis of posttraumatic stress disorder, obsessive compulsive disorder or bipolar disorder confirmed by independent adjudication
* Reports moderately severe to severe symptoms of depression
* Ingested psychotropic medication within 5 half-lives or 21 days (whichever is longer) prior to Day 1, including THC and CBD, and unwillingness to refrain from their use for the entire duration of the trial
* Recent suicidal ideation or behavior
* Current or recent moderate to severe substance use disorder as assessed by the MINI
* Clinically significant abnormal findings in safety assessments
* Has significant progressive disorders or unstable medical conditions
* Unable to comply with the requirements of the study or, in the opinion of the Investigator or Sponsor, is unsuitable for the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Engrail Therapeutics INC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Estibaliz Arce, PhD

Role: STUDY_DIRECTOR

Engrail Therapeutics INC

Locations

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IMA Clinical Research Phoenix

Phoenix, Arizona, United States

Site Status

Collaborative Neuroscience Research, LLC (CNS)

Garden Grove, California, United States

Site Status

Sun Valley Research Center

Imperial, California, United States

Site Status

Alliance Research

Long Beach, California, United States

Site Status

NRC Research Institute

Los Angeles, California, United States

Site Status

Excell Research, Inc.

Oceanside, California, United States

Site Status

Anderson Clinical Research

Redlands, California, United States

Site Status

California Neuroscience Research, LLC

Sherman Oaks, California, United States

Site Status

Pacific Clinical Research Management Group

Upland, California, United States

Site Status

Sunwise Clinical Research

Walnut Creek, California, United States

Site Status

Mountain View Clinical Research

Denver, Colorado, United States

Site Status

Vertex Clinical Research

Clermont, Florida, United States

Site Status

Clinical Neuroscience Solutions, Inc.

Jacksonville, Florida, United States

Site Status

Accel Research Sites Network - Lakeland CRU

Lakeland, Florida, United States

Site Status

Accel Research Sites Network - Maitland CRU

Maitland, Florida, United States

Site Status

Clinical Neuroscience Solutions, Inc.

Orlando, Florida, United States

Site Status

CenExel iResearch, LLC

Savannah, Georgia, United States

Site Status

Collective Medical Research

Overland Park, Kansas, United States

Site Status

Boston Clinical Trials

Boston, Massachusetts, United States

Site Status

Precise Research Centres

Flowood, Mississippi, United States

Site Status

IMA Clinical Research

Las Vegas, Nevada, United States

Site Status

SPRI Clinical Trials, LLC

Brooklyn, New York, United States

Site Status

Neurobehavioral Research

Cedarhurst, New York, United States

Site Status

Richmond Behavioral Associates

Staten Island, New York, United States

Site Status

Clinical Neuroscience Solutions, Inc.

Memphis, Tennessee, United States

Site Status

Austin Clinical Trials Partners

Austin, Texas, United States

Site Status

FutureSearch Trials of Dallas

Dallas, Texas, United States

Site Status

Baylor College of Medicine

Houston, Texas, United States

Site Status

Aim Trials

Plano, Texas, United States

Site Status

Grayline Research Center

Wichita Falls, Texas, United States

Site Status

Alpine Research Organization

Clinton, Utah, United States

Site Status

Core Clinical Research

Everett, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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ENX-102-003

Identifier Type: -

Identifier Source: org_study_id

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