A Study of JNJ-99245354 (ITI-1284) as an Adjunctive Treatment in Participants With Generalized Anxiety Disorder (GAD) Who Have an Inadequate Response to GAD Treatment

November 2, 2026 updated by: Intra-Cellular Therapies, Inc.

A Multicenter, Randomized, Double-blind, Parallel-group, Placebo-controlled Trial to Assess the Efficacy, Safety, and Tolerability of JNJ-99245354 (ITI-1284) as an Adjunctive Treatment in Patients With Generalized Anxiety Disorder Who Have an Inadequate Response to Generalized Anxiety Disorder Treatment and an Open-label Long-term Extension Treatment With JNJ-99245354 (ITI-1284)

The purpose of this study is to assess if JNJ-99245354 administered once daily works better to reduce anxiety compared to placebo when given as an additional (adjunctive) therapy in participants with generalized anxiety disorder (GAD; a mental health condition defined by uncontrollable, and excessive worry about everyday events for a long period of time).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
705

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • California
      • Temecula, California, United States, 92591
        • Recruiting
        • Inland Psychiatric Medical Group Inc
    • Florida
      • Miami, Florida, United States, 33186
        • Recruiting
        • Nuovida Research Center
    • Massachusetts
      • Springfield, Massachusetts, United States, 01103
        • Recruiting
        • Voltaire Clinical Research
    • New York
      • New York, New York, United States, 10017
        • Recruiting
        • Fieve Clinical Research Inc

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • Medically stable on the basis of physical examination, medical history, vital signs, and 12-lead electrocardiogram (ECG) performed at screening and at baseline
  • Medically stable on the basis of clinical laboratory tests performed at screening
  • History of inadequate response to at least 1 generalized anxiety disorder (GAD)-approved treatment taken at an adequate dose and duration as specified in the protocol for the treatment of ongoing GAD symptoms
  • Is currently an outpatient and is anticipated to maintain outpatient status for the duration of the double blind (DB) treatment period of the trial
  • Body mass index (BMI) within the range 19-40 kilogram per meter squared (kg/m^2) (inclusive)

Exclusion criteria:

  • Within the participant's lifetime, has one of the following confirmed diagnostic and statistical manual of mental disorders (5th edition) (DSM-5) text revision (TR) psychiatric diagnoses: a. schizophrenia, schizoaffective disorder, schizophreniform disorder or other psychotic disorder; b. bipolar disorder
  • Within 6 months of screening, has a confirmed DSM-5-TR psychiatric diagnosis other than GAD, including: a. other anxiety disorders (except simple phobias and social anxiety disorder); b. moderate or severe alcohol or substance use disorders (excluding nicotine); d. moderate or severe major depressive disorder; e. any other psychiatric condition (except for mild major depressive disorder [MDD]) that has been the main focus of treatment
  • Montgomery-asberg depression rating scale (MADRS) total score greater than (>)18 at screening or baseline
  • Lifetime history of inadequate response to >3 of the approved treatments for GAD at an adequate dose and for an adequate duration
  • The participant is taking more than 1 anti depressive therapy (ADT) or is taking ADT + buspirone at screening, regardless of indication, and is unable or unwilling to discontinue additional ADT (or buspirone) prior to baseline

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: JNJ-99245354: Dose 1

Participants will receive JNJ-99245354 dose 1 as an adjunctive therapy once daily for up to 6 weeks in the double blind (DB) period. Eligible participants can enter the open-label (OL) period, to receive JNJ-99245354 dose 1 or dose 2 for up to 24 weeks.
Drug: JNJ-99245354

JNJ-99245354 will be administered sublingually.

Other Names:
  • ITI-1284
Experimental: JNJ-99245354: Dose 2

Participants will receive JNJ-99245354 dose 2 as an adjunctive therapy once daily for up to 6 weeks in the DB period. Eligible participants can enter the OL period, to receive JNJ-99245354 dose 1 or dose 2 for up to 24 weeks.
Drug: JNJ-99245354

JNJ-99245354 will be administered sublingually.

Other Names:
  • ITI-1284
Placebo Comparator: Placebo

Participants will receive placebo as an adjunctive therapy once daily for up to 6 weeks in the DB period. Eligible participants can enter the OL period, to receive JNJ-99245354 dose 1 or dose 2 for up to 24 weeks.
Drug: JNJ-99245354

JNJ-99245354 will be administered sublingually.

Other Names:
  • ITI-1284
Drug: Placebo

Placebo will be administered sublingually.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change from Baseline to End of Week 6 in Hamilton Anxiety Rating (HAM-A) Scale Total Score
Time Frame: Baseline, Week 6

The HAM-A Scale is a clinician-rated scale measuring both psychic anxiety (mental agitation and psychological distress) and somatic anxiety (physical complaints related to anxiety). Each item is rated on a 5-point scale ranging from 0=not present to 4=very severe, disabling symptoms. The HAM-A total score ranges from 0 to 56 where higher score indicates greater severity in anxiety.
Baseline, Week 6

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change from Baseline to the End of Week 6 in Clinical Global Impression-Severity (CGI-S) Anxiety Score
Time Frame: Baseline, Week 6

The CGI-S scale is a standardized assessment tool that the clinician can use to rate the overall severity of illness. The CGI-S asks the clinician: "Considering your total clinical experience with this particular population, how mentally ill is the participant at this time? CGI-S is rated on the following seven-point scale: 1=normal, not at all ill; 2=borderline ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among the most extremely ill participants. Here, higher score indicates higher symptom severity.
Baseline, Week 6
Change from Baseline to the End of Week 1 in HAM-A Total Score
Time Frame: Baseline, Week 1

The HAM-A Scale is a clinician-rated scale measuring both psychic anxiety (mental agitation and psychological distress) and somatic anxiety (physical complaints related to anxiety). Each item is rated on a 5-point scale ranging from 0=not present to 4=very severe, disabling symptoms. The HAM-A total score ranges from 0 to 56 where higher score indicates greater severity in anxiety.
Baseline, Week 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Intra-Cellular Therapies, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Intra-Cellular Therapies, Inc. Clinical Trial, Intra-Cellular Therapies, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 29, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 20, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 28, 2030

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 28, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 28, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 2, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 3, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 2, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 99245354ANX3001
  • 2026-527319-40-00 (Registry Identifier: EUCT number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The data sharing policy of Johnson & Johnson Innovative Medicine is available at innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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