Study of ITI-1284 as an Adjunctive Treatment in Patients With Generalized Anxiety Disorder
A Multicenter, Randomized, Double-blind, Placebo-controlled Study to Assess the Efficacy, Safety, and Tolerability of ITI-1284 as an Adjunctive Treatment in Patients With Generalized Anxiety Disorder Who Have an Inadequate Response to Generalized Anxiety Disorder Treatment
2 other identifiers
interventional
705
5 countries
56
Brief Summary
This is a multicenter, randomized, double-blind, placebo-controlled study evaluating the efficacy, safety, and tolerability of ITI-1284 compared with placebo as adjunctive therapy to GAD treatment in patients meeting Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) criteria for GAD who have an inadequate response to ongoing GAD treatment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Aug 2024
Typical duration for phase_2
56 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 24, 2024
CompletedFirst Posted
Study publicly available on registry
June 28, 2024
CompletedStudy Start
First participant enrolled
August 5, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 16, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 21, 2027
September 25, 2026
September 1, 2026
2.6 years
June 24, 2024
September 24, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Hamilton Anxiety Rating Scale (HAM-A)
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). It comprises of 14 items that are 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 with a higher score indicating increased severity of anxiety symptoms.
Week 6
Secondary Outcomes (1)
Clinical Global Impression Scale-Severity (CGI-S)
Week 6
Study Arms (3)
ITI-1284 10 mg
EXPERIMENTALITI-1284 20 mg
EXPERIMENTALPlacebo
PLACEBO COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- Provide written informed consent before the initiation of any study specific procedures;
- Male or female patients ≥ 18 years of age;
- At Screening, meet Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) diagnostic criteria for moderate or severe 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), 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 1 GAD-approved treatment (ie, one of the following GAD-approved treatments: paroxetine, venlafaxine XR, duloxetine, escitalopram, or buspirone) taken at an adequate dose (at least a minimum total daily dose of paroxetine 20 milligrams \[mg\], venlafaxine XR 75 mg, duloxetine 60 mg, escitalopram 10 mg, or buspirone 20 mg) and duration (ie, daily for at least 6 weeks) for the treatment of ongoing GAD symptoms;
- Currently having an inadequate response to one of the following GAD-approved treatments: paroxetine, venlafaxine XR, duloxetine, escitalopram, or buspirone taken at an adequate dose (at least a minimum total daily dose of paroxetine 20 mg, venlafaxine XR 75 mg, duloxetine 60 mg, escitalopram 10 mg, or buspirone 20 mg) and duration (ie, for at least 6 weeks prior to Screening) and agrees to continue the same dosing regimen for the duration of the study.
- NOTE: The current GAD-approved treatment must be different from the GAD treatment identified as the historical failure.
You may not qualify if:
- 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 (at least a minimum total daily dose of paroxetine 20 mg, venlafaxine XR 75 mg, duloxetine 60 mg, escitalopram 10 mg, or buspirone 20 mg) and for an adequate duration (ie, at least 6 weeks).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (56)
Behavioral Research Specialists LLC
Glendale, California, 91206, United States
Sun Valley Research Center
Imperial, California, 92251, United States
Synergy East
Lemon Grove, California, 91945, United States
Excell Research Inc
Oceanside, California, 92056, United States
NRC Research Institute
Orange, California, 92868, United States
Anderson Clinical Research
Redlands, California, 92374, United States
Premier Clinical Research
Miami, Florida, 33122, United States
Global Medical Institutes
Miami, Florida, 33125, United States
Miami Dade Medical Research Institute
Miami, Florida, 33176, United States
Sunshine Medical Solution
Miami, Florida, 33186, United States
South Florida Research Inc
Miami Springs, Florida, 33166, United States
K2 Medical Research
Tampa, Florida, 33634, United States
CenExeli Research LLC
Atlanta, Georgia, 30030, United States
Atlanta Center for Medical Research
Atlanta, Georgia, 30331, United States
Michigan Clinical Research Institute
Ann Arbor, Michigan, 48105, United States
Bio Behavioral Health
Toms River, New Jersey, 08755, United States
SPRI Clinical Trials, LLC
Brooklyn, New York, 11235, United States
Neuro Behavioral Clinical Research
North Canton, Ohio, 44720, United States
Sooner Clinical Research
Oklahoma City, Oklahoma, 73120, United States
Lehigh Center for Clinical Research LLC
Allentown, Pennsylvania, 18103, United States
Suburban Research Associates
Media, Pennsylvania, 19063, United States
Austin Clinical Trial Partners
Austin, Texas, 78737, United States
BioBehavioral Research of Austin PC
Austin, Texas, 78759, United States
Aims Trials LLC
Plano, Texas, 75093, United States
Northwest Clinical Research Center
Bellevue, Washington, 98007, United States
Medical Center Sv Dimitar Blagoevgrad
Blagoevgrad, 2700, Bulgaria
Mental Health Center Prof. Dr. Ivan Temkov
Burgas, 8001, Bulgaria
Outpatient care-group practice for specialized psychiatric care Datamed OOD
Pleven, 5800, Bulgaria
Medical Center Mentalcare OOD
Plovdiv, 4004, Bulgaria
Mental Health Center - Rousse
Rousse, 7003, Bulgaria
Multiprofile Hospital for Active Treatment in Neurology and Psychiatry Sveti Naum
Sofia, 1113, Bulgaria
DCC 'Sv. Vrach and Sv. Sv. Kuzma and Damyan', OOD
Sofia, 1408, Bulgaria
Medical Center Hera EOOD
Sofia, 1510, Bulgaria
Medical Center Intermedica, OOD
Sofia, 1680, Bulgaria
Medical center - VAS OOD
Targovishte, 7700, Bulgaria
Diagnostic Consulting Center Mladost - M Varna 1
Varna, 9020, Bulgaria
Diagnostic Consulting Center Mladost - M Varna
Varna, 9020, Bulgaria
Mental Health Center - Vratsa EOOD
Vratsa, 3000, Bulgaria
Medipa S R O
Brno, 60200, Czechia
A Shine S R O
Pilsen, 301 00, Czechia
Clintrial s r o
Prague, 10000, Czechia
Medical Services Prague S R O
Prague, 16000, Czechia
Institut Neuropsychiatricke pece
Prague, 18600, Czechia
Mlynowamed Specjalistyczny Psychiatryczny Gabinet Lekarski Joanna Lazarczyk
Bialystok, 15-404, Poland
Przychodnia Srodmiescie SP. z o.o.
Bydgoszcz, 85-080, Poland
Specjalistyczna Praktyka Lekarska Piotr Zalitacz
Gorlice, 38-300, Poland
Niepubliczny Zaklad Opieki Psychiatrycznej MENTIS
Leszno, 64-100, Poland
Filip Rybakowski Specjalistyczna Praktyka Lekarska
Poznan, 60 744, Poland
Agnieszka Nowakowska Rudzka Gabinet Lekarski TCP Neuromed
Torun, 87 100, Poland
Institute of Mental Health Serbia
Belgrade, 11000, Serbia
University Clinical Center of Serbia 1
Belgrade, 11000, Serbia
University Clinical Center of Serbia
Belgrade, 11000, Serbia
University Clinical Hospital Center Dr Dragisa Misovic- Dedi
Belgrade, 11000, Serbia
Special Neuropsychiatric Hospital Kovin
Kovin, 26220, Serbia
University Clinical Center Kragujevac
Kragujevac, 34000, Serbia
Specialized Hospital for Neuropsychiatric Diseases Sveti Vracevi
Novi Kneževac, 23330, Serbia
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Intra-Cellular Therapies,Inc. Clinical Trial
Intra-Cellular Therapies, Inc.
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 24, 2024
First Posted
June 28, 2024
Study Start
August 5, 2024
Primary Completion (Estimated)
March 16, 2027
Study Completion (Estimated)
October 21, 2027
Last Updated
September 25, 2026
Record last verified: 2026-09
Data Sharing
- IPD Sharing
- Will not share