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A Clinical Study That Will Measure How Well SEP-363856 Works and How Safe it is in Adults With Generalized Anxiety Disorder

Phase 2
Recruiting
Conditions
Generalized Anxiety Disorder
Interventions
Drug: Placebo
Registration Number
NCT05729373
Lead Sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Brief Summary

A clinical study that will meaure how well SEP-363856 works and how safe it is in adults with Generalized Anixety Disorder. This study will be accepting both male and female subjects between the ages of 18 years and 65 years old. The study will be held in Approximately 50 global study centers and approximately 15 additional centers for a separate Japan population. Participation in the study can be up to approximately 12 weeks.

Detailed Description

This is a multicenter, randomized, double-blind, parallel-group, flexible dose, outpatient study evaluating the efficacy and safety of SEP-363856 flexibly dosed (50 - 75 mg/day) versus placebo over an 8-week Treatment Period in subjects with GAD. This study is projected to randomize approximately 434 subjects to 2 treatment groups (SEP-363856 \[50 - 75 mg/day\] or placebo) in a 1:1 ratio.

Approximately 30 additional subjects (N = 15 per treatment group) are projected to enroll in the Japan Cohort. Treatment assignment will be stratified by country. Study drug will be taken at approximately the same time each evening at bedtime .

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
434
Inclusion Criteria

(list is not all inclusive)

  • Male or female subject between 18 to 65 years of age.
  • Subject meets DSM-5 criteria for a diagnosis of Generalized Anxiety Disorder.
  • Subject must be willing and able to comply with the study procedures and visit schedule and must be able to understand and follow verbal and written instructions.
Exclusion Criteria

(list is not all inclusive)

  • Subject has DSM-5-based diagnosis of any disorder other than Generalized Anxiety Disorder that was the primary focus of treatment within 12 months before Screening.
  • Subjects who report an inadequate response to more than 3 antidepressant treatments
  • Subject is at significant risk of harming self or others based on Investigator's judgment.
  • Subject has any clinically significant unstable medical condition or any clinically significant chronic disease that in the opinion of the Investigator, would limit the subject's ability to complete and/or participate in the study.
  • Female subject who is pregnant, lactating, or plans to get pregnant during the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
SEP-363856SEP-363856dosed once daily tablet
PlaceboPlacebodosed once daily tablet
Primary Outcome Measures
NameTimeMethod
Change from Baseline in Hamilton Anxiety Rating Scale (HAM-A) total score at EndpointWeek 8

The HAM-A scale consists of 14 items, each defined by a series of symptoms. Each item is rated on a 5-point (0-4) scale, with higher scores indicating greater severity.

Secondary Outcome Measures
NameTimeMethod
Change from Baseline in Clinical Global Impression-Severity (CGI-S) score at EndpointWeek 8

The CGI-S is a clinician-rated assessment of the subject's current illness state on a 7-point scale, where a higher score is associated with greater illness severity.

Trial Locations

Locations (84)

American Medical Research, Inc.

🇺🇸

Warrenville, Illinois, United States

Copley Clinical

🇺🇸

Boston, Massachusetts, United States

Boston Clinical Trials

🇺🇸

Boston, Massachusetts, United States

University of Alabama at Birmingham

🇺🇸

Huntsville, Alabama, United States

IMA Clinical Research Phoenix

🇺🇸

Phoenix, Arizona, United States

ProScience Research Group

🇺🇸

Culver City, California, United States

Excell Research, Inc.

🇺🇸

Oceanside, California, United States

Anderson Clinical Research

🇺🇸

Redlands, California, United States

Schuster Medical Research Institute

🇺🇸

Sherman Oaks, California, United States

California Neuroscience Research, LLC

🇺🇸

Sherman, California, United States

Viking Pharmaceutical Trials Inc. dba Viking Clinical Research

🇺🇸

Temecula, California, United States

CenExel Collaborative Neuroscience Research

🇺🇸

Torrance, California, United States

Pacific Clinical Research Management Group

🇺🇸

Upland, California, United States

CNS Healthcare

🇺🇸

Jacksonville, Florida, United States

Combined Research Orlando

🇺🇸

Orlando, Florida, United States

K2 Medical Research, LLC

🇺🇸

Tampa, Florida, United States

CenExel iResearch Atlanta

🇺🇸

Atlanta, Georgia, United States

Advanced Discovery Research LLC

🇺🇸

Atlanta, Georgia, United States

NeuroTrials Research, Inc.

🇺🇸

Atlanta, Georgia, United States

CenExel iResearch Savannah

🇺🇸

Savannah, Georgia, United States

Uptown Research Institute, LLC

🇺🇸

Chicago, Illinois, United States

Adams Clinical

🇺🇸

Watertown, Massachusetts, United States

Midwest Research Group

🇺🇸

Saint Charles, Missouri, United States

Center for Emotional Fitness Site

🇺🇸

Cherry Hill, New Jersey, United States

CenExel Hassman Research Institute

🇺🇸

Marlton, New Jersey, United States

Social Psychiatry Research Institute

🇺🇸

Brooklyn, New York, United States

Neurobehavioral Research, Inc.

🇺🇸

Cedarhurst, New York, United States

Bioscience Research, LLC

🇺🇸

Mount Kisco, New York, United States

Berman Clinical

🇺🇸

New York, New York, United States

Manhattan Behavioral Medicine

🇺🇸

New York, New York, United States

The Medical Research Network, L.L.C

🇺🇸

New York, New York, United States

Neuro-Behavioral Clinical Research, Inc.

🇺🇸

North Canton, Ohio, United States

Sooner Clinical Research

🇺🇸

Oklahoma City, Oklahoma, United States

Paradigm Research Professionals, LLP

🇺🇸

Oklahoma City, Oklahoma, United States

Lehigh Center for Clinical Research, LLC

🇺🇸

Allentown, Pennsylvania, United States

Psychiatry and Psychotherapy Partners Austin

🇺🇸

Austin, Texas, United States

FutureSearch Trials of Dallas, LP

🇺🇸

Dallas, Texas, United States

Cedar Clinical Research, Inc.

🇺🇸

Draper, Utah, United States

Medical Center Mentalcare OOD

🇧🇬

Sofia, Plovdiv, Bulgaria

Medical Center Medconsult Pleven OOD

🇧🇬

Pleven, Bulgaria

Medical Center Spectar - Plovdiv EOOD

🇧🇬

Plovdiv, Bulgaria

MHC - Sofia, EOOD

🇧🇬

Sofia, Bulgaria

Medical Center "Sv.Naum"

🇧🇬

Sofia, Bulgaria

DCC "Sv. Vrach and Sv. Sv. Kuzma and Damyan", OOD

🇧🇬

Sofia, Bulgaria

Medical Center Hera EOOD

🇧🇬

Sofia, Bulgaria

Medical Center Intermedica, OOD

🇧🇬

Sofia, Bulgaria

DCC "Mladost M" - Varna, OOD Site #156

🇧🇬

Varna, Bulgaria

DCC "Mladost M" - Varna, OOD Site #157

🇧🇬

Varna, Bulgaria

Marienthali Kliinik

🇪🇪

Tallinn, Estonia

Tartu University Hospital

🇪🇪

Tartu, Estonia

Savon Psykiatripalvelu Oy

🇫🇮

Kuopio, Savo, Finland

Aava Laakarikeskus - Aava Kamppi

🇫🇮

Helsinki, Finland

Mederon Oy

🇫🇮

Helsinki, Finland

Oulu Mentalcare Oy

🇫🇮

Oulu, Finland

Satakunnan Psykiatripalvelu

🇫🇮

Tampere, Finland

Uematsu Mental Clinic

🇯🇵

Chikugo-shi, Fukuoka-Ken, Japan

Hiro Mental Clinic

🇯🇵

Fukuoka-shi, Fukuoka-Ken, Japan

Shinseikai Kaku Mental Clinic

🇯🇵

Fukuoka-Shi, Fukuoka-Ken, Japan

Mental Clinic Sakurazaka

🇯🇵

Fukuoka-shi, Fukuoka-Ken, Japan

Kokura Mental Clinic

🇯🇵

Kitakyushu-shi, Fukuoka-Ken, Japan

Hirota Clinic

🇯🇵

Kurume-shi, Fukuoka-Ken, Japan

Hayakawa Clinic

🇯🇵

Kure-shi, Hiroshima-Ken, Japan

Higashi-Sapporo Mental Clinic

🇯🇵

Sapporo-shi, Hokkaido, Japan

Shimode Mental Clinic

🇯🇵

Sapporo-shi, Hokkaido, Japan

Akari Clinic

🇯🇵

Naha-shi, Okinawa-Ken, Japan

Barclay Imuro Mental Clinic

🇯🇵

Urasoe-shi, Okinawa-Ken, Japan

Senzoku Psychosomatic Medicine Clinic

🇯🇵

Meguro-ku, Tokyo-To, Japan

Sangenjaya Nakamura Mental Clinic

🇯🇵

Setagaya-ku, Tokyo-To, Japan

Sangenjaya Neurology- Psychosomatic Clinic

🇯🇵

Setagaya-ku, Tokyo-To, Japan

MENTUM, s.r.o.

🇸🇰

Bratislava, Slovakia

Epamed sro

🇸🇰

Košice, Slovakia

PsychoLine s.r.o.

🇸🇰

Rimavská Sobota, Slovakia

Crystal Comfort s.r.o.

🇸🇰

Vranov Nad Topľou, Slovakia

BONA MEDIC, s.r.o.

🇸🇰

Zlaté Moravce, Slovakia

Hospital Valle del Nalon

🇪🇸

Langreo, Asturias, Spain

Hospital Universitario Fundacion Alcorcon

🇪🇸

Alcorcón, Madrid, Spain

Hospital de la Santa Creu i Sant Pau

🇪🇸

Barcelona, Spain

Institucion Hospitalaria Hestia Palau

🇪🇸

Barcelona, Spain

Hospital Universitario Infanta Leonor

🇪🇸

Madrid, Spain

Hospital de Antequera

🇪🇸

Málaga, Spain

Sahlgrenska Universitetssjukhuset - Östra sjukhuset

🇸🇪

Göteborg, Sweden

ProbarE- Lund

🇸🇪

Lund, Sweden

PharmaSite AB Malmö

🇸🇪

Malmö, Sweden

ProbarE- Stockholm

🇸🇪

Stockholm, Sweden

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