20110165: Study to Evaluate the Effect of AMG 747 on Schizophrenia Negative Symptoms (Study 165)

NCT ID: NCT01568229

Last Updated: 2014-10-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

111 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-05-31

Study Completion Date

2013-08-31

Brief Summary

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The purpose of this study is to evaluate the effect of AMG 747 on negative symptoms of schizophrenia in patients who are stable on current antipsychotic treatment. After a run-in period on their current antipsychotic treatment, patients will be randomized to one of the four treatment arms as add-on therapy for a treatment duration of up to 3 months.

Detailed Description

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Conditions

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Schizophrenia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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AMG 747 - Dose 1

Group Type EXPERIMENTAL

AMG 747

Intervention Type DRUG

Three dose levels once-daily oral administration

AMG 747 - Dose 2

Group Type EXPERIMENTAL

AMG 747

Intervention Type DRUG

Three dose levels once-daily oral administration

AMG 747 - Dose 3

Group Type EXPERIMENTAL

AMG 747

Intervention Type DRUG

Three dose levels once-daily oral administration

Placebo Comparator

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Once-daily oral administration

Interventions

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AMG 747

Three dose levels once-daily oral administration

Intervention Type DRUG

Placebo

Once-daily oral administration

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) schizophrenia
* Total score on the PANSS Marder Negative Symptom Factor Scale (NSFS) ≥ 20
* Total score on the PANSS Marder Positive Symptom Factor Scale (PSFS) ≤ 30
* Receiving stable antipsychotic therapy for at least 8 weeks prior to screening
* Receiving a stable dose of other psychotropic agents for at least 8 weeks prior to screening
* Subject has had a stable residence or living arrangement for at least 8 weeks prior to screening and the residence or living arrangement is not anticipated to change for the duration of the study
* The subject or subject's legally acceptable representative has provided informed consent.

Exclusion Criteria

* Current schizoaffective or bipolar disorder, panic disorder, obsessive compulsive disorder, evidence of mental retardation by history or clinical examination or known premorbid IQ ≤ 70
* Clinically significant suicidal ideation or suicide attempts, assaultive behavior or marked changes in mood within the 8 weeks prior to screening, or currently endorsing suicidal ideation in clinical exam
* Substance abuse (with the exception of nicotine or caffeine abuse) within the 8 weeks prior to screening, or during screening
* Substance dependence (with the exception of nicotine or caffeine dependence) within the 6 months prior to screening, or during screening
* Planning to initiate a smoking cessation therapy or otherwise substantially modify nicotine use during the study
* Positive urine drug test for substances of abuse (with the exception of positive screens for prescribed agents such as benzodiazepines).
* Other criteria may apply
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Amgen

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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MD

Role: STUDY_DIRECTOR

Amgen

Locations

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Research Site

Little Rock, Arkansas, United States

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Springdale, Arkansas, United States

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Long Beach, California, United States

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Oakland, California, United States

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Orange, California, United States

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Hialeah, Florida, United States

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Kissimmee, Florida, United States

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Atlanta, Georgia, United States

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Rockville, Maryland, United States

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Flowood, Mississippi, United States

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Princeton, New Jersey, United States

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Buffalo, New York, United States

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New York, New York, United States

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Durham, North Carolina, United States

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Scranton, Pennsylvania, United States

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Memphis, Tennessee, United States

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Dallas, Texas, United States

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Brno, , Czechia

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Olomouc, , Czechia

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Prague, , Czechia

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Prague, , Czechia

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Přerov, , Czechia

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Strakonice, , Czechia

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Créteil, , France

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Dôle, , France

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Montauban, , France

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Nîmes, , France

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Kuala Lumpur, Kuala Lumpur, Malaysia

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Kuala Lumpur, Kuala Lumpur, Malaysia

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Kuala Lumpur, Kuala Lumpur, Malaysia

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Ipoh, Perak, Malaysia

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Ipoh, Perak, Malaysia

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Bydgoszcz, , Poland

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Chełmno, , Poland

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Katowice, , Poland

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Skorzewo, , Poland

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Torun, , Poland

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Żuromin, , Poland

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Barnet, , United Kingdom

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Edinburgh, , United Kingdom

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London, , United Kingdom

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Norwich, , United Kingdom

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Sheffield, , United Kingdom

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Warrington, , United Kingdom

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Countries

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United States Czechia France Malaysia Poland United Kingdom

References

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Dunayevich E, Buchanan RW, Chen CY, Yang J, Nilsen J, Dietrich JM, Sun H, Marder S. Efficacy and safety of the glycine transporter type-1 inhibitor AMG 747 for the treatment of negative symptoms associated with schizophrenia. Schizophr Res. 2017 Apr;182:90-97. doi: 10.1016/j.schres.2016.10.027. Epub 2016 Oct 24.

Reference Type DERIVED
PMID: 27789188 (View on PubMed)

Related Links

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http://www.amgentrials.com

AmgenTrials clinical trials website

Other Identifiers

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2011-004845-42

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

20110165

Identifier Type: -

Identifier Source: org_study_id

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