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D-Serine Monotherapy for Schizophrenia

NCT00215917 · Status: UNKNOWN · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2006-05-03

No results posted yet for this study

Summary

N-methyl-D-aspartate receptor (NMDAR) agonist, added to classical or atypical antipsychotic medication, has reduced negative, depressive, and cognitive symptomatology. We will be investigating the effect of D-serine, (DSR), a selective and potent NMDAR agonist, as monotherapy for treatment resistant schizophrenics.

40 subjects on stable doses of risperidone will be randomized under double-blind conditions into a treatment group, which will receive D-serine 2100 mg, or a control group, which will continue to receive risperidone. Treatment will continue for 14 weeks.

Symptoms and side effects will be rated biweekly with the CGI, PANSS, BPRS, SAS, AIMS, and UKU. Before and after the trial subjects will undergo neuropsychological assessments. Baseline and post-trial levels of amino acids relevant to glutamatergic neurotransmission (glutamate, glutamine, aspartate, glycine, serine, alanine) will be assessed.

The primary outcome measures of the study will be the PANSS total scores and the positive and negative symptom cluster scores.

Conditions

Interventions

DRUG

D-serine 2100 mg daily

Sponsors & Collaborators

  • Herzog Hospital

    lead OTHER

Principal Investigators

  • Pesach Lichtenberg, M.D. · Herzog Hospital, and Hadassah Medical School--the Hebrew University of Jerusalem, Israel

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Countries

  • Israel

Study Locations

More Related Trials

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 NCT00215917 on ClinicalTrials.gov