NCT01263080

Brief Summary

Multicentre randomised double-blind, placebo-controlled 2x2 factorial trial investigating the effects of adding mirtazapine and folic acid to existing therapy for patients with schizophrenia

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
333

participants targeted

Target at P75+ for phase_4 schizophrenia

Timeline
Completed

Started Nov 2010

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2010

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 17, 2010

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 20, 2010

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2012

Completed
Last Updated

August 2, 2016

Status Verified

August 1, 2016

Enrollment Period

2.1 years

First QC Date

December 17, 2010

Last Update Submit

August 1, 2016

Conditions

Keywords

mirtazapinefolic acidschizophrenia

Outcome Measures

Primary Outcomes (1)

  • To compare the efficacy of mirtazapine and placebo for treatment of symptoms associated with schizophrenia

    baseline, week4, week8, week12

Secondary Outcomes (5)

  • To compare the efficacy of folic acid and placebo for treatment of symptoms of schizophrenia

    baseline, week4, week8, week12

  • To compare the efficacy of mirtazapine and placebo for treatment of negative symptoms of schizophrenia

    baseline, week4, week8, week12

  • To compare the efficacy of folic acid and placebo for treatment of negative symptoms of schizophrenia

    baseline, week4, week8, week12

  • To compare the safety and tolerability of mirtazapine and placebo in patients with schizophrenia

    baseline, week4, week8, week12

  • To compare the safety and tolerability of folic acid and placebo in patients with schizophrenia

    baseline, week4, week8, week12

Study Arms (4)

mirtazapine+folic acid

ACTIVE COMPARATOR

mirtazapine 30mg QD, folic acid 0.4mg QD

Drug: mirtazapineDrug: folic acid

mirtazapine+folic acid placebo

ACTIVE COMPARATOR

mirtazapine 30mg QD, folic acid placebo 1 tablet QD

Drug: mirtazapineDrug: folic acid placebo

mirtazapine placebo+folic acid

ACTIVE COMPARATOR

mirtazapine placebo 1 tablet QD, folic acid 0.4mg QD

Drug: mirtazapine placeboDrug: folic acid

mirtazapine placebo+folic acid placebo

PLACEBO COMPARATOR

mirtazapine placebo 1 tablet QD, folic acid placebo 1 tablet QD

Drug: folic acid placeboDrug: mirtazapine placebo

Interventions

mirtazapine 30mg QD

Also known as: Remeron
mirtazapine+folic acidmirtazapine+folic acid placebo

folic acid placebo 1 tablet QD

Also known as: Folic placebo
mirtazapine placebo+folic acid placebomirtazapine+folic acid placebo

mirtazapine placebo 1 tablet QD

Also known as: Remeron placebo
mirtazapine placebo+folic acidmirtazapine placebo+folic acid placebo

folic acid 0.4mg QD

Also known as: vitamin B 9
mirtazapine placebo+folic acidmirtazapine+folic acid

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Inpatients or outpatients age 18 to 70 years;
  • Meet DSM-IV criteria for schizophrenia;
  • Signed an informed consent form by patients or their legally acceptable representatives;
  • PANSS total score \>=60 and at least one item of P1, P2, P3, P5 or P6 \>=4 to ensure subject has current active psychotic symptoms - i.e. hallucinations, delusions, thought disorder;
  • Subjects who are currently taking effective dose of antipsychotic;
  • Women must agree to practice an effective method of birth control if they are sexually active before entry and throughout the study.

You may not qualify if:

  • Meet any other DSM-IV Axis I disorders;
  • Meet DSM-IV criteria for substance abuse or dependence;
  • Have been treatment-resistant to 2 or more kinds of antipsychotics with sufficient dosage for at least 4 weeks, or require clozapine treatment, or have received clozapine treatment within 1 month prior to randomization;
  • Subjects are actively suicidal or judged clinically to be at risk of serious suicidal or violent behavior in the opinion of the investigator;
  • Have serious or unstable medical illness (e.g., cardiovascular disease, neurologic, hematologic, renal, hepatic, immunologic, endocrine, or other systemic illness), or have any clinically significant abnormality on laboratory test or ECG which indicate severe medical conditions;
  • Have received electroconvulsive therapy within 28 days before randomization;
  • Have received long acting antipsychotic within 1 treatment cycle before randomization;
  • Have received antidepressant within 14 days, or have received MAOIs within 4 weeks before randomization or require antidepressive treatment;
  • History of prostatic hypertrophy or dysuria;
  • History of narrow-angle glaucoma or elevation of intraocular pressure;
  • Known or suspected history of allergy or have contradiction to mirtazapine or folic acid;
  • Known have currently requirement of taking mirtazapine or folic acid;
  • Women who are pregnant or nursing;
  • Have previously completed or withdrawn from this study, or participated in a clinical trial of another drug within 30 days.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beijing Anding Hospital, Capital Medical University

Beijing, Beijing Municipality, 100088, China

Location

MeSH Terms

Conditions

Schizophrenia

Interventions

MirtazapineFolic Acid

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

DibenzazepinesHeterocyclic Compounds, 3-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsPterinsPteridinesHeterocyclic Compounds, 2-Ring

Study Officials

  • Gang Wang, M.D.

    Beijing Anding Hospital, Capital Medical University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
vice-director of Affective Disorder Center, Beijing Anding Hospital

Study Record Dates

First Submitted

December 17, 2010

First Posted

December 20, 2010

Study Start

November 1, 2010

Primary Completion

December 1, 2012

Study Completion

December 1, 2012

Last Updated

August 2, 2016

Record last verified: 2016-08

Locations