Clinical trial Recruiting at 49 sites Phase 2 Interventional Ages 18 and up

Treatment for Generalized Anxiety Disorder with ITI-1284

Official title: A Multicenter, Randomized, Double-blind, Placebo-controlled Study to Assess the Efficacy, Safety, and Tolerability of ITI-1284 as Monotherapy Treatment in Patients With Generalized Anxiety Disorder Who Have Had Inadequate Response to Generalized Anxiety Disorder Treatment

Run by Intra-Cellular Therapies, Inc. · NCT06701903 · Data updated 2026-11-12

This study is testing whether a new medication called ITI-1284 can help people with Generalized Anxiety Disorder who haven't found relief from other treatments.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment570 (estimated)
SponsorIntra-Cellular Therapies, Inc.
Industry-sponsored
Locations51 sites (Birmingham, Alabama and 50 other locations)
StatusRecruiting
StartedNovember 21, 2024
Main results expectedOctober 14, 2027
Study endsJuly 20, 2028
Registry record updatedNovember 3, 2026
Trial IDNCT06701903 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults diagnosed with moderate to severe Generalized Anxiety Disorder who have had an inadequate response to at least two approved GAD treatments.

Probably not a fit

Patients who have not been diagnosed with Generalized Anxiety Disorder or those who have not previously tried GAD-approved treatments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This multicenter, randomized, double-blind, placebo-controlled study evaluates the efficacy, safety, and tolerability of ITI-1284 as a monotherapy for patients diagnosed with Generalized Anxiety Disorder (GAD) who have not adequately responded to previous treatments. The study consists of a screening period, a 6-week double-blind treatment phase where participants receive either ITI-1284 or a placebo, and a safety follow-up period. Approximately 570 patients will be enrolled and randomized to receive either 10 mg or 20 mg of ITI-1284 or a placebo. The study aims to provide insights into the potential benefits of ITI-1284 for managing GAD symptoms.

Why it matters

Potential benefit: If successful, this treatment could offer a new effective option for patients suffering from Generalized Anxiety Disorder who have not responded to existing therapies.

How similar studies have gone: While this approach is being tested in this specific context, similar studies exploring new treatments for GAD have shown promise, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
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 (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 2 of the following GAD-approved treatments: paroxetine, venlafaxine XR, duloxetine, escitalopram, or buspirone taken at an adequate dose (that is, at least a minimum total daily dose of paroxetine 20 milligram \[mg\], venlafaxine XR 75mg, duloxetine 60 mg, escitalopram 10mg, or buspirone 20 mg) 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 (that is, at least a minimum total daily dose of paroxetine 20 mg, venlafaxine XR 75mg, duloxetine 60 mg, escitalopram 10mg, or buspirone 20 mg) and for an adequate duration (ie, at least 6 weeks)

Where it's running

  • University of Alabama at Birmingham
    Birmingham, Alabama, United States
    Recruiting
  • Woodland International Research Group
    Little Rock, Arkansas, United States
    Recruiting
  • Woodland Research Northwest
    Rogers, Arkansas, United States
    Recruiting
  • Proscience Research Group
    Culver City, California, United States
    Recruiting
  • Leading Edge Research
    Encino, California, United States
    Recruiting
  • Wake Research PRI Encino
    Encino, California, United States
    Recruiting
Show 44 more locations
  • CalNeuro Research
    Los Angeles, California, United States
    Recruiting
  • Excell Research Inc
    Oceanside, California, United States
    Recruiting
  • California Neuroscience Research
    Sherman Oaks, California, United States
    Recruiting
  • Sunwise Clinical Research
    Walnut Creek, California, United States
    Recruiting
  • University of Connecticut Health Center
    Farmington, Connecticut, United States
    Recruiting
  • Miami Dade Medical Research Institute
    Miami, Florida, United States
    Recruiting
  • University of South Florida
    Tampa, Florida, United States
    Recruiting
  • iResearch Atlanta LLC
    Decatur, Georgia, United States
    Recruiting
  • Precise Clinical Research, Inc.
    Flowood, Mississippi, United States
    Recruiting
  • SPRI Clinical Trials, LLC
    Brooklyn, New York, United States
    Recruiting
  • University of Buffalo
    Buffalo, New York, United States
    Recruiting
  • Richmond Behavioral Associates
    Staten Island, New York, United States
    Recruiting
  • The Ohio State University
    Columbus, Ohio, United States
    Recruiting
  • Sooner Clinical Research
    Norman, Oklahoma, United States
    Recruiting
  • Suburban Research Associates
    Media, Pennsylvania, United States
    Recruiting
  • Relaro Medical Trials
    Dallas, Texas, United States
    Recruiting
  • Northwest Clinical Research Center
    Bellevue, Washington, United States
    Recruiting
  • Medical Center Sv Dimitar Blagoevgrad
    Blagoevgrad, Bulgaria
    Recruiting
  • Medical Center Lifemed
    Kardzhali, Bulgaria
    Recruiting
  • Medical Center Medconsult-Pleven
    Pleven, Bulgaria
    Recruiting
  • Medical Center Mentalcare OOD
    Plovdiv, Bulgaria
    Recruiting
  • Mental Health Center - Rousse
    Rousse, Bulgaria
    Recruiting
  • DCC 'Sv. Vrach and Sv. Sv. Kuzma and Damyan', OOD
    Sofia, Bulgaria
    Recruiting
  • Medical Center Hera EOOD
    Sofia, Bulgaria
    Recruiting
  • Medical Center Intermedica, OOD
    Sofia, Bulgaria
    Recruiting
  • Medical center - VAS OOD
    Targovishte, Bulgaria
    Recruiting
  • Prywatne Gabinety Lekarskie PROMEDICUS
    Bialystok, Poland
    Recruiting
  • Przychodnia Srodmiescie SP. z o.o.
    Bydgoszcz, Poland
    Recruiting
  • Centrum Zdrowia Alcea
    Gdansk, Poland
    Recruiting
  • Niepubliczny Zaklad Opieki Psychiatrycznej MENTIS
    Leszno, Poland
    Recruiting
  • Agnieszka Nowakowska Rudzka Gabinet Lekarski TCP Neuromed
    Torun, Poland
    Recruiting
  • Clinical Center Dr Dragisa Misovic Dedinje
    Belgrade, Serbia
    Recruiting
  • Institute of Mental Health Serbia
    Belgrade, Serbia
    Recruiting
  • University Clinical Center of Serbia 1
    Belgrade, Serbia
    Recruiting
  • University Clinical Center of Serbia
    Belgrade, Serbia
    Recruiting
  • Special Neuropsychiatric Hospital Kovin
    Kovin, Serbia
    Recruiting
  • University Clinical Center Kragujevac
    Kragujevac, Serbia
    Recruiting
  • University Clinical Center NIS
    Niš, Serbia
    Recruiting
  • Specialized Hospital for Neuropsychiatric Diseases Sveti Vracevi
    Novi Kneževac, Serbia
    Recruiting
  • Psychiatricka Ambulancia Mentum S.R.O.
    Bratislava, Slovakia
    Recruiting
  • Psychiatricka Ambulancia Psycholine S.R.O.
    Rimavská Sobota, Slovakia
    Recruiting
  • Centrum Zdravia R.B.K. S.R.O. Poliklinika Medic Sk
    Svidník, Slovakia
    Recruiting
  • Crystal Comfort s.r.o.
    Vranov nad Topľou, Slovakia
    Recruiting
  • Pacific Clinical Research Medical Group
    Upland, California, United States
    Completed

+1 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.