Study of ITI-1284 as Monotherapy Treatment in Patients With Generalized Anxiety Disorder

NCT ID: NCT06701903

Last Updated: 2026-01-09

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

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

570 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-21

Study Completion Date

2027-06-30

Brief Summary

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This is a multicenter, randomized, double-blind, placebo-controlled study to assess the efficacy, safety, and tolerability of ITI-1284 as monotherapy treatment in patients meeting Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) criteria for GAD in patients who have had inadequate response to generalized anxiety disorder treatment.

Detailed Description

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The study will be conducted in 3 periods:

* Screening Period (up to 2 weeks) during which patient eligibility will be assessed and the washout of prohibited medications will occur;
* Double-blind Treatment Period (6 weeks) during which a total of approximately 570 patients are planned to be randomized in a 1:1:1 ratio to receive one of the 3 treatments (ITI-1284 10 mg, ITI-1284 20 mg, or placebo);
* Safety Follow-up Period (1 week) during which all patients will return for a safety follow-up visit approximately 1 week after the last dose of study drug.

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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ITI-1284 10mg

ITI-1284 10 mg tablet, taken once daily, sublingual administration.

Group Type EXPERIMENTAL

ITI-1284 10 mg

Intervention Type DRUG

ITI-1284 10 mg tablet, taken once daily, sublingual administration.

ITI-1284 20mg

ITI-1284 20 mg tablet, taken once daily, sublingual administration.

Group Type EXPERIMENTAL

ITI-1284 20 mg

Intervention Type DRUG

ITI-1284 20 mg tablet, taken once daily, sublingual administration.

Placebo

Matching placebo tablet, taken once daily, sublingual administration

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matching placebo tablet, taken once daily, sublingual administration

Interventions

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ITI-1284 10 mg

ITI-1284 10 mg tablet, taken once daily, sublingual administration.

Intervention Type DRUG

ITI-1284 20 mg

ITI-1284 20 mg tablet, taken once daily, sublingual administration.

Intervention Type DRUG

Placebo

Matching placebo tablet, taken once daily, sublingual administration

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Provide written informed consent before the initiation of any study specific procedures;
* At Screening, meet Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) diagnostic criteria for moderate or severe GAD as confirmed by the Investigator or Sponsor-approved rater using the Structured Clinical Interview for DSM-5 Clinical Trials Version (SCID-5-CT), and meets all of the following at Screening and Baseline:

* HAM-A Total score of ≥ 22;
* HAM-A Items 1 (anxious mood) and 2 (tension) scores ≥ 2;
* CGI-S score of ≥ 4;
* History of inadequate response (\< 50% improvement in anxiety symptoms as measured by the modified Antidepressant Treatment Response Questionnaire \[ATRQ\] for GAD) to at least 2 of the following GAD-approved treatments: paroxetine, venlafaxine XR, duloxetine, escitalopram, or buspirone taken at an adequate dose (at least the minimum GAD-approved dose per package insert) and duration (ie, for at least 6 weeks prior to Screening) for the treatment of ongoing GAD symptoms.

Exclusion Criteria

* Within the patient's lifetime, has one of the following confirmed DSM-5-TR psychiatric diagnoses:

* Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder or other psychotic disorder;
* Bipolar Disorder;
* MADRS total score \> 18 at Screening or Baseline;
* In the opinion of the Investigator, the patient has a significant risk for suicidal behavior during his/her participation in the study or

* At Screening, the patient scores "yes" on Suicidal Ideation Items 4 or 5 of the C-SSRS within 6 months prior to Screening or, at Baseline, the patient scores "yes" on Suicidal Ideation Items 4 or 5 since the Screening Visit;
* At Screening, the patient has had 1 or more suicidal attempts within the 2 years prior to Screening;
* At Screening or Baseline MADRS Item 10 score ≥ 5; or
* The patient is considered to be an imminent danger to him/herself or others based on the assessment of the Investigator;
* Lifetime history of failure to respond to \> 3 of the approved treatments for GAD (ie, paroxetine, venlafaxine XR, duloxetine, escitalopram, or buspirone) at an adequate dose (ie, at least the minimum dose approved for GAD per package insert) and for an adequate duration (ie, at least 6 weeks).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Intra-Cellular Therapies, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Clinical Site

Birmingham, Alabama, United States

Site Status RECRUITING

Clinical Site

Little Rock, Arkansas, United States

Site Status RECRUITING

Clinical Site

Rogers, Arkansas, United States

Site Status RECRUITING

Clinical Site

Culver City, California, United States

Site Status RECRUITING

Clinical Site_2

Encino, California, United States

Site Status RECRUITING

Clinical Site

Encino, California, United States

Site Status RECRUITING

Clinical Site

Los Angeles, California, United States

Site Status RECRUITING

Clinical Site

Oceanside, California, United States

Site Status RECRUITING

Clinical Site

Sherman Oaks, California, United States

Site Status RECRUITING

Clinical Site

Upland, California, United States

Site Status ACTIVE_NOT_RECRUITING

Clinical Site

Walnut Creek, California, United States

Site Status RECRUITING

Clinical Site

Farmington, Connecticut, United States

Site Status RECRUITING

Clinical Site

Gainesville, Florida, United States

Site Status ACTIVE_NOT_RECRUITING

Clinical Site

Miami, Florida, United States

Site Status RECRUITING

Cinical Site

Orlando, Florida, United States

Site Status ACTIVE_NOT_RECRUITING

Clinical Site

Tampa, Florida, United States

Site Status NOT_YET_RECRUITING

Clinical Site

Tampa, Florida, United States

Site Status NOT_YET_RECRUITING

Clinical Site

Decatur, Georgia, United States

Site Status RECRUITING

Clinical Site

Chicago, Illinois, United States

Site Status NOT_YET_RECRUITING

Clinical Site

Boston, Massachusetts, United States

Site Status ACTIVE_NOT_RECRUITING

Clinical Site

Flowood, Mississippi, United States

Site Status RECRUITING

Clinical Site

Brooklyn, New York, United States

Site Status RECRUITING

Clinical Site

Buffalo, New York, United States

Site Status ACTIVE_NOT_RECRUITING

Clinical Site

Staten Island, New York, United States

Site Status RECRUITING

Clinical Site

Columbus, Ohio, United States

Site Status NOT_YET_RECRUITING

Clinical Site

Oklahoma City, Oklahoma, United States

Site Status RECRUITING

Clinical Site

Media, Pennsylvania, United States

Site Status RECRUITING

Clinical Site

Dallas, Texas, United States

Site Status NOT_YET_RECRUITING

Clinical Site

Dallas, Texas, United States

Site Status RECRUITING

Clinical Site

Bellevue, Washington, United States

Site Status RECRUITING

Clinical Site

Blagoevgrad, , Bulgaria

Site Status RECRUITING

Clinical Site

Kardzhali, , Bulgaria

Site Status RECRUITING

Clinical Site

Pleven, , Bulgaria

Site Status RECRUITING

Clinical Site

Plovdiv, , Bulgaria

Site Status RECRUITING

Clinical Site

Rousse, , Bulgaria

Site Status RECRUITING

Clinical Site

Sofia, , Bulgaria

Site Status RECRUITING

Clinical Site

Sofia, , Bulgaria

Site Status RECRUITING

Clinical Site

Sofia, , Bulgaria

Site Status RECRUITING

Clinical Site

Targovishte, , Bulgaria

Site Status RECRUITING

Clinical Site

Helsinki, , Finland

Site Status NOT_YET_RECRUITING

Clinical Site

Kuopio, , Finland

Site Status NOT_YET_RECRUITING

Clinical Site

Oulu, , Finland

Site Status NOT_YET_RECRUITING

Clinical Site

Tampere, , Finland

Site Status NOT_YET_RECRUITING

Clinical Site

Bialystok, , Poland

Site Status RECRUITING

Clinical Site

Bydgoszcz, , Poland

Site Status RECRUITING

Clinical Site

Gdansk, , Poland

Site Status RECRUITING

Clinical Site

Leszno, , Poland

Site Status RECRUITING

Clinical Site

Torun, , Poland

Site Status RECRUITING

Clinical Site_2

Belgrade, , Serbia

Site Status RECRUITING

Clinical Site_3

Belgrade, , Serbia

Site Status RECRUITING

Clinical Site_4

Belgrade, , Serbia

Site Status RECRUITING

Clinical Site

Belgrade, , Serbia

Site Status RECRUITING

Clinical Site

Kovin, , Serbia

Site Status RECRUITING

Clinical Site

Kragujevac, , Serbia

Site Status RECRUITING

Clinical Site

Niš, , Serbia

Site Status RECRUITING

Clinical Site

Novi Kneževac, , Serbia

Site Status RECRUITING

Clinical Site

Bratislava, , Slovakia

Site Status RECRUITING

Clinical Site

Rimavská Sobota, , Slovakia

Site Status RECRUITING

Clinical Site

Svidník, , Slovakia

Site Status RECRUITING

Clinical Site

Vranov nad Topľou, , Slovakia

Site Status RECRUITING

Countries

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United States Bulgaria Finland Poland Serbia Slovakia

Central Contacts

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ITI Clinical Trials

Role: CONTACT

6464409333

Other Identifiers

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ITI-1284-302

Identifier Type: -

Identifier Source: org_study_id

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