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A Study to Asses Safety and Tolerability of ITI-1284 Given Alone or as an Additional Treatment in Participants With Generalized Anxiety Disorder (GAD)

An Open-label, Multicenter Trial to Assess the Long-term Safety and Tolerability of ITI 1284 as Either Adjunctive or Monotherapy Treatment in Patients With Generalized Anxiety Disorder (GAD) With a History of Inadequate Response to GAD Treatment

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07807865
Enrollment
900
Registered
2026-09-08
Start date
2026-09-03
Completion date
2030-03-04
Last updated
2026-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Generalized Anxiety Disorder

Brief summary

The purpose of this study is to assess how safe ITI-1284 is and how well it can be tolerated in long-term, when given alone or with other medicines, in participants with generalized anxiety disorder (GAD) who have not responded to treatment previously. GAD is a mental health condition defined by constant, uncontrollable worry about everyday things that lasts for six months or more.

Interventions

ITI-1284 will be administered sublingually.

Sponsors

Intra-Cellular Therapies, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

for Roll-over participants: * Provide written informed consent before the initiation of any study specific procedures * Is currently an outpatient, and is anticipated to maintain outpatient status for the duration of the study * Male or female of childbearing potential and agrees to use a highly effective method of birth control from the time informed consent is provided until 30 days after the last dose of ITI-1284 for females and 90 days after the last dose of ITI-1284 for males * Ability to follow study instructions and likely to complete all required visits * In the opinion of the Investigator, the patient must have safely completed the lead-in study (ITI-1284-301 or ITI-1284-302) * If entering from lead-in study ITI-1284-301, must be expected to continue their ongoing anti-depressant therapy (ADT) or buspirone from the lead-in study Inclusion criteria for De-novo participants: * Provide written informed consent before the initiation of any study-specific procedures * Male or female participants greater than or equal to (\>=) 18 years of age * Has a body mass index (BMI) of 19-40 kilogram per meter squared (kg/m\^2), inclusive * At screening, meet diagnostic and statistical manual of mental disorders, fifth edition, text revision (DSM-5-TR) diagnostic criteria for moderate or severe generalized anxiety disorder (GAD) (current GAD) as confirmed by the investigator or sponsor-approved rater using the structured clinical interview for DSM-5, clinical trials version (SCID 5-CT) * Is currently an outpatient, and is anticipated to maintain outpatient status for the duration of the study

Exclusion criteria

for Roll-over participants * In the opinion of the Investigator, the participant has a significant risk for suicidal behavior during the course of her/his participation in the study or is considered to be an imminent danger to her/himself or others, and/or: a. At baseline, the participant scores "yes" on suicidal Ideation Items 4 or 5 of the Columbia-suicide severity rating scale (C-SSRS) "Since Last Visit" version; b. At baseline, the participant scores \>= 5 on the Montgomery-Asberg depression rating scale (MADRS) Item 10 (suicidal Thoughts); c. The participant is considered to be an imminent danger to themself or others based on the assessment of the Investigator * The participant is breast-feeding or pregnant; female participants of childbearing potential must have a negative urine pregnancy test at baseline * Based on the Investigator's clinical judgement, any abnormal clinical laboratory test or electrocardiogram (ECG) results obtained throughout the lead-in study that are considered clinically significant and preclude safe participation in the study * The participant has any other condition that may be detrimental to the participant if they participate in the study * In the opinion of the Investigator, the participant is unable to comply with study procedures or judged to be inappropriate for the study

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with Adverse Events (AEs)Up to Week 52An AE is any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug-related. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

Secondary

MeasureTime frameDescription
Change from Baseline in Hamilton Anxiety Rating Scale (HAM-A) Total ScoreBaseline up to Week 52The 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 symptoms.
Change from Baseline in Clinical Global Impression-Severity (CGI S) ScoreBaseline up to Week 52The 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 patient at this time? which 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 subjects. Higher scores indicate worse outcome.

Countries

United States

Contacts

CONTACTStudy Contact
Participate-In-This-Study1@its.jnj.com844-434-4210
STUDY_DIRECTORIntra-Cellular Therapies, Inc. Clinical Trial

Intra-Cellular Therapies, Inc.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 9, 2026