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Long-Term Study of MP-214 in Patients With Schizophrenia

NCT01626872 · Status: COMPLETED · Phase: PHASE2/PHASE3 · Type: INTERVENTIONAL · Enrollment: 254

Last updated 2026-01-05

Study results available
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Summary

The objective of this study is to evaluate the long-term safety, tolerability, and efficacy of MP-214 in patients with schizophrenia.

Conditions

Interventions

DRUG

MP-214 3mg

In the double-blind period (before Week 6), participants continue in the same arm they were on in core trial A002-A4 (except placebo arm starts 3mg or 6mg of MP-214). In the open-label period (after Week 6), patients will be rerandomized to 3mg or 6mg of MP-214. After the fourth week of the open-label treatment period, they will be received MP-214 at flexible doses (3mg or 6mg or 9mg).

DRUG

MP-214 6mg

In the double-blind period (before Week 6), participants continue in the same arm they were on in core trial A002-A4 (except placebo arm starts 3mg or 6mg of MP-214). In the open-label period (after Week 6), patients will be rerandomized to 3mg or 6mg of MP-214. After the fourth week of the open-label treatment period, they will be received MP-214 at flexible doses (3mg or 6mg or 9mg).

DRUG

MP-214 9mg

In the double-blind period (before Week 6), participants continue in the same arm they were on in core trial A002-A4 (except placebo arm starts 3mg or 6mg of MP-214). In the open-label period (after Week 6), patients will be rerandomized to 3mg or 6mg of MP-214. After the fourth week of the open-label treatment period, they will be received MP-214 at flexible doses (3mg or 6mg or 9mg).

DRUG

Risperidone 4mg

In the double-blind period (before Week 6), participants continue in the same arm they were on in core trial A002-A4. In the open-label period (after Week 6), patients will be rerandomized to 3mg or 6mg of MP-214. After the fourth week of the open-label treatment period, they will be received MP-214 at flexible doses (3mg or 6mg or 9mg).

Sponsors & Collaborators

  • Tanabe Pharma Corporation

    lead INDUSTRY

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-09-30
Primary Completion
2016-10-31
Completion
2016-10-31

Countries

  • Japan
  • South Korea
  • Taiwan

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01626872 on ClinicalTrials.gov