NCT06326840

Brief Summary

The goal of this clinical trial is to explore the potential of metformin in managing olanzapine-induced metabolic disturbance and hyperprolactinemia in patients with schizophrenia. The main questions it aims to answer are:

  1. 1.The effect of metformin on olanzapine-induced metabolic disturbance
  2. 2.The effect of metformin on olanzapine-induced hyperprolactinemia

Trial Health

87
On Track

Trial Health Score

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

Enrollment
42

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 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

May 31, 2010

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 10, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 10, 2011

Completed
12.7 years until next milestone

First Submitted

Initial submission to the registry

February 23, 2024

Completed
28 days until next milestone

First Posted

Study publicly available on registry

March 22, 2024

Completed
Last Updated

March 22, 2024

Status Verified

May 1, 2010

Enrollment Period

1 year

First QC Date

February 23, 2024

Last Update Submit

March 17, 2024

Conditions

Keywords

schizophreniaolanzapinemetabolic disturbanceprolactin

Outcome Measures

Primary Outcomes (8)

  • Glucose level

    Glucose level was measured every 2 weeks.

    8 weeks

  • prolactin level

    Prolactin level was assessed every 2 weeks.

    8 weeks

  • Insulin level

    insulin level was measured every 2 weeks

    8 weeks

  • low-density lipoprotein cholesterol (LDL-C) level

    LDL-C level was measured every 2 weeks

    8 weeks

  • high-density lipoprotein cholesterol (HDL-C) level

    HDL-C level was measured every 2 weeks

    8 weeks

  • cholesterol level

    cholesterol level was measured every 2 weeks

    8 weeks

  • triglycerides level

    triglycerides level was measured every 2 weeks

    8 weeks

  • leptin level

    leptin level was measured every 2 weeks

    8 weeks

Secondary Outcomes (1)

  • Clinical Global Impression scale

    8 weeks

Study Arms (1)

metformin intervention

EXPERIMENTAL

All participants were administered 1500 mg/day of metformin for eight weeks.

Drug: Metformin

Interventions

All participants were administered 1500 mg/day of metformin for eight weeks. The trial design is single-group with no masking.

metformin intervention

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • aged between 18 and 60 years
  • diagnosed with schizophrenia under the Diagnostic and Statistical Manual of Mental Disorders-fourth edition criteria
  • had been consistently treated with a stable dose of olanzapine for a minimum of three months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taipei Medical University-Wan Fang Hospital

Taipei, 116, Taiwan

Location

MeSH Terms

Conditions

HyperprolactinemiaSchizophrenia

Interventions

Metformin

Condition Hierarchy (Ancestors)

HyperpituitarismPituitary DiseasesHypothalamic DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesEndocrine System DiseasesSchizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic Chemicals

Study Officials

  • Mong-Liang Lu, MD

    Taipei Meidcal University-Wan Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 23, 2024

First Posted

March 22, 2024

Study Start

May 31, 2010

Primary Completion

June 10, 2011

Study Completion

June 10, 2011

Last Updated

March 22, 2024

Record last verified: 2010-05

Data Sharing

IPD Sharing
Will not share

Locations