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Terminated Phase 2 Interventional

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

ClinicalTrials.gov ID: NCT01568229

Public ClinicalTrials.gov record NCT01568229. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 4, 2026, 2:59 PM EST

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Official title

A Phase 2, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Effect of Add-on AMG 747 on Schizophrenia Negative Symptoms

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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.

Study identification

NCT ID
NCT01568229
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
Amgen
Industry
Enrollment
111 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 2012 (Type not available)
Primary completion
Jun 2013 (Actual)
Completion
Aug 2013 (Actual)
Last update posted
Oct 1, 2014

2012 – 2013

United States locations

U.S. sites
17
U.S. states
12
U.S. cities
17
Facility City State ZIP Site status
Research Site Little Rock Arkansas 72211 —
Research Site Springdale Arkansas 72764 —
Research Site Long Beach California 90813 —
Research Site Oakland California 94612 —
Research Site Orange California 92868 —
Research Site Hialeah Florida 33018 —
Research Site Kissimmee Florida 34741 —
Research Site Atlanta Georgia 30328 —
Research Site Rockville Maryland 20850 —
Research Site Flowood Mississippi 39232 —
Research Site Princeton New Jersey 08540 —
Research Site Buffalo New York 14215 —
Research Site New York New York 10027 —
Research Site Durham North Carolina 27710 —
Research Site Scranton Pennsylvania 18503 —
Research Site Memphis Tennessee 38119 —
Research Site Dallas Texas 75230 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 27 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01568229, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 1, 2014 · Synced Nov 4, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01568229 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →