NCT00140192

Brief Summary

Creatine plays a pivotal role in brain energy homeostasis. Creatine supplementation is widely used in enhancing sports performance, and has been tried in the treatment of neurological, neuromuscular and atherosclerotic disease with a paucity of side effects. Dechent et al (1999) studied the effect of oral creatine supplementation for 4 wk demonstrating a statistically significant increase of mean concentration of total creatine across brain regions. These findings suggest the possibility of using oral creatine supplementation to modify brain high-energy phosphate metabolism in subjects with various brain disorders, including schizophrenia and major depression. Recently, Rae et al (2003) reported that creatine supplementation for 6 weeks had a significant positive effect on both working memory and Raven matrices. Several independent lines of evidence suggest the possible involvement of altered cerebral energy metabolism in schizophrenia. We are performing a double blind cross-over study of creatine in schizophrenia. Forty patients will be treated with creatine for 3 months in a double-blind crossover design. Rating scales will include scales for assessing negative and positive symptoms of schizophrenia, clinical global impressions scale, scales for side-effects and a cognitive battery Creatine effects on brain energy metabolism and its possible cognitive enhancing properties raise the possibility of developing a new therapeutic strategy in schizophrenia focusing on treating metabolic hypoactive brain areas including frontal regions.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
12

participants targeted

Target at below P25 for phase_3 schizophrenia

Timeline
Completed

Started Sep 2004

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

September 1, 2004

Completed
12 months until next milestone

First Submitted

Initial submission to the registry

August 31, 2005

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 1, 2005

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2006

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2006

Completed
Last Updated

July 29, 2009

Status Verified

October 1, 2005

Enrollment Period

1.5 years

First QC Date

August 31, 2005

Last Update Submit

July 28, 2009

Conditions

Keywords

creatine metabolismschizophreniaenergy metabolism

Outcome Measures

Primary Outcomes (2)

  • Positive and Negative Syndrome Scale

  • Clincal Global Impression

Interventions

Eligibility Criteria

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

You may qualify if:

  • age 18-60
  • physically healthy
  • at least 2 years of illness in a stable condition
  • presenting negative and cognitive symptoms

You may not qualify if:

  • drug or alcohol abuse
  • clinically significant medical condition
  • laboratory abnormality

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beersheva Mental Health Center

Beersheva, Israel

Location

Related Publications (1)

  • Kaptsan A, Odessky A, Osher Y, Levine J. Lack of efficacy of 5 grams daily of creatine in schizophrenia: a randomized, double-blind, placebo-controlled trial. J Clin Psychiatry. 2007 Jun;68(6):881-4. doi: 10.4088/jcp.v68n0609.

MeSH Terms

Conditions

Schizophrenia

Interventions

Creatine

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

GuanidinesAmidinesOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Study Officials

  • RH Belmaker, MD

    Ben Gurion University of the Negev + Beersheva Mental Health Center

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV

Study Record Dates

First Submitted

August 31, 2005

First Posted

September 1, 2005

Study Start

September 1, 2004

Primary Completion

March 1, 2006

Study Completion

March 1, 2006

Last Updated

July 29, 2009

Record last verified: 2005-10

Locations