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A Clinical Study of an Investigational Drug for the Treatment of Major Depressive Episode Associated With Bipolar I Disorder.

Phase 3
Terminated
Conditions
Depressive Episodes, Bipolar I Depression
Interventions
Drug: SEP-4199 CR 200 mg
Drug: SEP-4199 CR 400 mg
Drug: Placebo
Registration Number
NCT05169710
Lead Sponsor
Sumitomo Pharma America, Inc.
Brief Summary

A clinical trial to study the efficacy and safety of an investigational drug in people with major depressive episodes associated with with Bipolar I disorder (bipolar I depression) Participants in the study will either receive the drug being studied or a placebo. The study will be conducted in approximately 90 sites in North America, Europe, Latin America and Japan. It will be have both male and female participants ages 18-65. Participation in the study will be approximately 10 weeks.

Detailed Description

This study is a randomized, double-blind, placebo-controlled, parallel-group study designed to evaluate the efficacy, safety, and tolerability of treatment with SEP-4199 CR at fixed doses of 200 mg/day or 400 mg/day compared with placebo for the treatment of major depressive episode associated with bipolar I disorder (bipolar I depression). The study is projected to randomize approximately 522 subjects inNorth America, Japan, Europe and Latin America, to SEP-4199 CR 200 mg/day, SEP-4199 CR 400 mg/day, and placebo treatment groups in a 1:1:1 ratio

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
83
Inclusion Criteria

Inclusion Criteria (not all inclusive):

  • Subject provides written informed consent and is willing and able to comply with the protocol in the opinion of the Investigator.
  • Subject is 18 to 65 years of age, inclusive, at the time of informed consent.
  • Subject meets DSM-5 criteria, based on the SCID-5-CT, for bipolar I disorder, current episode depressed with or without rapid cycling disease course (≥ 4 episodes of mood disturbance but < 8 episodes in the previous 12 months) with or without psychotic features.
  • Subject's current major depressive episode is ≥ 4 weeks and less than 12 months in duration at Screening.
  • Subject has a MADRS total score ≥ 22 at both Screening and Baseline.
  • Subject has a CGI-BP-S depression score ≥ 4 at both Screening and Baseline.
  • Subject has a YMRS total score ≤ 12 at both Screening and Baseline.
  • Subject is in good physical health, based on medical history, physical examination, neurological examination, vital signs, ECGs, and results of clinical laboratory tests (hematology, chemistry, and urinalysis).
Exclusion Criteria

Exclusion Criteria (not all inclusive):

  • Subject currently has any DSM-5 defined psychiatric diagnosis other than bipolar I disorder that was the primary focus of treatment, or is currently being treated with concomitant medication
  • Subject has a lifetime history of, or symptoms consistent with, schizophrenia, schizoaffective disorder, or a major psychiatric diagnosis other than bipolar I disorder that is judged to pose risk to the study scientific objectives
  • Subject has a history of non-response to an adequate (6-week) trial of 3 or more antidepressants (with or without mood stabilizers) during the current major depressive episode.
  • Subject has any clinically significant unstable medical condition or any clinically significant chronic disease that would pose a risk to the subject or that might confound the results of the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
SEP-4199 CR 200 mgSEP-4199 CR 200 mgSEP-4199 CR 200 mg/day
SEP-4199 CR 400 mgSEP-4199 CR 400 mgSEP-4199 CR 400 mg/day
PlaceboPlaceboPlacebo
Primary Outcome Measures
NameTimeMethod
Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score at Week 66 Weeks

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician-rated assessment of the subject's level of depression. The measure contains 10 items that measure apparent and reported sadness, inner tension, reduced sleep and appetite, difficulty concentrating, lassitude, inability to feel, and pessimistic and suicidal thoughts, each ranging from 0 to 6. The MADRS total score ranges from 0 to 60, with higher scores indicating increased depressive symptoms

Secondary Outcome Measures
NameTimeMethod
Change From Baseline in Global Severity Assessed by the Clinical Global Impressions Severity: Bipolar Version (CGI-BP-S) Score (Depression) at Week 66 Weeks

Clinical Global Impressions Severity: Bipolar Version (CGI-BP-S) score (depression) is a single value, clinician-rated assessment of illness severity, and 7-point scale with range from 1 = normal, not at all ill; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; 7 = among the most extremely ill subjects. A higher score is associated with greater illness severity.

Trial Locations

Locations (88)

University of Alabama at Birmingham Huntsville Regional Medical Campus

🇺🇸

Huntsville, Alabama, United States

Sanro Clinical Research Group LLC

🇺🇸

Bryant, Arkansas, United States

Advanced Research Center, Inc.

🇺🇸

Anaheim, California, United States

Sun Valley Research Center

🇺🇸

Imperial, California, United States

Clinical innovations, Inc.

🇺🇸

Riverside, California, United States

Siyan Clinical Research

🇺🇸

Santa Rosa, California, United States

Collaborative Neuroscience Research, LLC

🇺🇸

Torrance, California, United States

Vertex Research Group

🇺🇸

Clermont, Florida, United States

Sarkis Clinical Trials

🇺🇸

Gainesville, Florida, United States

Clinical Neuroscience Solutions, Inc.

🇺🇸

Orlando, Florida, United States

Premier Clinical Research Institute, Inc.

🇺🇸

Miami, Florida, United States

Central Miami Medical Institute

🇺🇸

Miami, Florida, United States

GCP Clinical Research LLC

🇺🇸

Tampa, Florida, United States

Atlanta Behavioral Research, LLC

🇺🇸

Atlanta, Georgia, United States

Psych Atlanta, P.C.

🇺🇸

Marietta, Georgia, United States

AMR Conventions Research

🇺🇸

Warrenville, Illinois, United States

Dept. of Psychiatry & Behavioral Sciences, University of Louisville School of Medicine

🇺🇸

Louisville, Kentucky, United States

St. Charles Psychiatric Associates / Midwest Research Group

🇺🇸

Saint Charles, Missouri, United States

Alivation Research, LLC

🇺🇸

Lincoln, Nebraska, United States

Center for Emotional Fitness

🇺🇸

Cherry Hill, New Jersey, United States

Global Medical Institutes, LLC

🇺🇸

Princeton, New Jersey, United States

UB Department of Psychiatry

🇺🇸

Buffalo, New York, United States

Finger Lakes Clinical Research

🇺🇸

Rochester, New York, United States

Richmond Behavioral Associates ERG Clinical Research - New York PLLC

🇺🇸

Staten Island, New York, United States

New Hope Clinical Research

🇺🇸

Charlotte, North Carolina, United States

Quest Therapeutics of Avon Lake

🇺🇸

Avon Lake, Ohio, United States

Neuro-Behavioral Clinical Research, Inc

🇺🇸

North Canton, Ohio, United States

Sooner Clinical Research

🇺🇸

Oklahoma City, Oklahoma, United States

Lehigh Center for Clinical Research, LLC

🇺🇸

Allentown, Pennsylvania, United States

Community Clinical Research, Inc.

🇺🇸

Austin, Texas, United States

UTHealth Science Center at Houston

🇺🇸

Houston, Texas, United States

Family Psychiatry of The Woodlands

🇺🇸

The Woodlands, Texas, United States

Integrated Clinical Research

🇺🇸

Saint George, Utah, United States

State Psychiatric Hospital - Kardzhali First Women Department Third Men Department

🇧🇬

Kardzhali, Bulgaria

Medical Center Mentalcare OOD

🇧🇬

Plovdiv, Bulgaria

Mental Health Center- Ruse EOOD,Men Department for treatment of persons with acute psychotic disorders; Women Department for treatment of persons with acute psychotic disorders; Department "Daily stationary"

🇧🇬

Ruse, Bulgaria

Mental Health Center - Sofia EOOD

🇧🇬

Sofia, Bulgaria

Medical Center Sveti Naum EOOD

🇧🇬

Sofia, Bulgaria

DCC St. Vrach and St. St. Kuzma and Damian OOD

🇧🇬

Sofia, Bulgaria

Medical Center Hera EOOD

🇧🇬

Sofia, Bulgaria

Medical Center Intermedica OOD

🇧🇬

Sofia, Bulgaria

State Psychiatric Hospital - s. Tsarev brod First Department for Active Treatment - Men Second Department for Active Treatment - Men Women Department - Rehabilitation Sector Women Department - Acute Sector

🇧🇬

Tsarev Brod, Bulgaria

DCC Mladost-M Varna OOD 15, Republika Blvd., MC Mladost, 3rd floor

🇧🇬

Varna, Bulgaria

AMNDX Inc.

🇨🇦

Markham, Ontario, Canada

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

Someikai Kanagami Clinic

🇯🇵

Kitakyushu-shi, Fukuoka-Ken, Japan

Kokura Mental Clinic

🇯🇵

Kitakyushu-shi, Fukuoka-Ken, Japan

Hatakeyama Clinic

🇯🇵

Kitakyushu, Fukuoka-Ken, Japan

Hirota Clinic

🇯🇵

Kurume-shi, Fukuoka-Ken, Japan

Shiranui Hospital

🇯🇵

Omuta-shi, Fukuoka-Ken, Japan

Jisenkai Nanko Psychiatric Institute

🇯🇵

Shirakawa-shi, Fukushima-Ken, Japan

Teine Keijinkai Hospital

🇯🇵

Sapporo-shi, Hokkaido, Japan

Tatsuta Clinic

🇯🇵

Kobe-shi, Hyogo-Ken, Japan

Cerisier Heart Clinic

🇯🇵

Kagoshima-shi, Kagoshima-Ken, Japan

Musashikosugi J Kokorono Clinic

🇯🇵

Kawasaki-shi, Kanagawa-Ken, Japan

Yutaka Clinic

🇯🇵

Sagamihara-shi, Kanagawa-Ken, Japan

Azamino Mental Clinic

🇯🇵

Yokohama-shi, Kanagawa-Ken, Japan

Yamatenomori Kokorono Clinic

🇯🇵

Yokohama-shi, Kanagawa-Ken, Japan

Satokai Yuge Hospital

🇯🇵

Kumamoto-shi, Kumamoto-ken, Japan

Akari Clinic

🇯🇵

Naha-shi, Okinawa-ken, Japan

Shiroma Clinic

🇯🇵

Urasoe-shi, Okinawa-ken, Japan

Rainbow & Sea Hospital

🇯🇵

Karatsu-shi, Saga-Ken, Japan

Juntendo University Hospital

🇯🇵

Bunkyo-ku, Tokyo-To, Japan

Senzoku Psychosomatic Clinic

🇯🇵

Meguro-ku, Tokyo-To, Japan

Minami-Aoyama Antique Street Clinic

🇯🇵

Minato-ku, Tokyo-To, Japan

Heart Care Ginga Clinic

🇯🇵

Nakano-ku, Tokyo-To, Japan

Sangenjaya Nakamura Mental Clinic

🇯🇵

Setagaya-ku, Tokyo-To, Japan

Sangenjaya Neurology- Psychosomatic Clinic

🇯🇵

Setagaya-ku, Tokyo-To, Japan

Japanese Red Cross Medical Center

🇯🇵

Shibuya-ku, Tokyo-To, Japan

Maynds Tower Mental Clinic

🇯🇵

Shibuya-ku, Tokyo-To, Japan

Sangubashi Kokorono Clinic

🇯🇵

Shibuya-ku, Tokyo-To, Japan

Etoh Mental Clinic

🇯🇵

Shinagawa-ku, Tokyo-To, Japan

Tamaki Clinic

🇯🇵

Shinjuku-ku, Tokyo-To, Japan

Himorogi Psychiatric Institute

🇯🇵

Shinjuku-ku, Tokyo-To, Japan

Uguisudani Mental Clinic

🇯🇵

Taito-ku, Tokyo-To, Japan

Ohwa Mental Clinic

🇯🇵

Toshima-ku, Tokyo-To, Japan

Kitaikebukuro Kokoro No Clinic

🇯🇵

Toshima-ku, Tokyo-To, Japan

Spitalul Clinic de Psihiatrie si Neurologie Brasov, Sectia Psihiatrie Clinică I

🇷🇴

Brasov, Romania

Spitalul Clinic de Psihiatrie ''Prof. Dr. Alexandru Obregia''

🇷🇴

Bucuresti, Romania

Sectia Psihiatrie, Centrul de Evaluare si Tratament al Toxicodependentelor pentru Tineri "Sfantul Stelian", Sectia Psihiatrie

🇷🇴

Bucuresti, Romania

Spitalul Clinic de Psihiatrie

🇷🇴

București, Romania

Institutul Privat De Cercetări Melchisedec, Pentru Boli Autoimune, Ereditare Şi Rare - I.P.C.M.

🇷🇴

Craiova, Romania

Institutul de Psihiatrie Socola Iasi, Sectia Psihiatrie I Femei

🇷🇴

Iasi, Romania

Institutul de Psihiatrie Socola Iasi, Sectia Psihiatrie III Acuti

🇷🇴

Iasi, Romania

PsychoLine s. r. o., Psychiatricka ambulancia

🇸🇰

Rimavska Sobota, Slovakia

Crystal Comfort s.r.o., Psychiatricka ambulancia

🇸🇰

Vranov Nad Topľou, Slovakia

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