Effect of Specific Anti-Toxoplasmatic Add-on Medication in Toxoplasma Gondii Seropositive Individuals With Schizophrenia or Major Depression

May 19, 2006 updated by: Zentrum für Integrative Psychiatrie

Effect of Add-on Anti-Toxoplasmosis Treatment on Parameters Defining Toxoplasma Gondii Infection and on Psychopathology in Patients With Schizophrenia or Major Depression Serologically Positive for Toxoplasma Gondii - Phase 3 Study

We investigate whether the add-on specific antitoxoplasmatic medication has positive effects in individuals with schizophrenia or major depression seropositive for Toxoplasma gondii (TG) infection. As TG modulates neurotransmitter metabolism affecting serotonin and dopamine we hypothesize that this chronic persistent infection might play a role for depressive and psychotic symptomatology. Therefore, on the basis of an ex juvantibus approach, specific anti TG medication might further improve psychiatric symptomatology in affected patients. This is investigated in a double-blind, placebo-controlled, randomized treatment trial.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment

40

Phase

  • Phase 3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Schizophrenia or Major Depression
  • Both genders
  • Adult
  • Patients are able to give informed consent

Exclusion Criteria:

  • Additional diagnosis of substance abuse/dependency
  • Continuous treatment with medication not compatible with study medication
  • Medical status not compatible with study medication
  • Any condition that increases study risk considerably
  • Pregnancy, nursing

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Psychopathology ratings

Secondary Outcome Measures

Outcome Measure
TG infection parameters

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Zentrum für Integrative Psychiatrie

Collaborators

Stanley Medical Research Institute

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2002

Study Completion

September 1, 2005

Study Registration Dates

First Submitted

March 7, 2006

First Submitted That Met QC Criteria

March 7, 2006

First Posted (Estimate)

March 8, 2006

Study Record Updates

Last Update Posted (Estimate)

May 22, 2006

Last Update Submitted That Met QC Criteria

May 19, 2006

Last Verified

March 1, 2006

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TOXO-KI-TT
  • SMRI grant # 01T-404

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe