D-cycloserine for Major Depressive Disorder

NCT ID: NCT00408031

Last Updated: 2012-08-03

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 26 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2007-01-31
• Study Completion Date: 2010-05-31

Brief Summary

For many depression patients treatment changes are required, including switching to another antidepressant and addition of a second antidepressant or a non-antidepressant agent ("augmentation"). The need to modify treatment is usually necessary because of partial or no response to first-line monotherapy or the failure to achieve remission although treatment response (improvement) has been obtained. These caveats of presently available antidepressant drugs highlight the need for innovative pharmacological treatment strategies. Recent data suggest that N-methyl-D-aspartate receptor (NMDAR) antagonists and partial agonists at the NMDAR-associated glycine binding site may represent a novel type of antidepressant medications. These types of compounds protect vulnerable neurons against a variety of insults, including stress-induced damage, and may serve to enhance and maintain normal synaptic connectivity. In animal models, these compounds mimic the effects of clinically effective antidepressants. Furthermore, down-regulation of the glycine site of the NMDAR was found to be a common feature of currently used antidepressant medications. D-cycloserine (DCS , Seromycin) is a broad spectrum antibiotic, in use for over thirty years against tuberculosis, that acts as a partial agonist at the NMDAR-associated glycine site. Beneficial antidepressant effects have been reported with 500-1000 mg/day DCS regimens in depressed tuberculosis patients and recent preliminary findings suggest that DCS may also be beneficial in the treatment of major depressive disorder. The antidepressant effects of DCS seem to reflect consequences of its capacity to reduce NMDAR receptor function. In the present project, it is proposed to assess, using a random assignment, parallel-group, double blind, placebo controlled design, the effects of a NMDAR -antagonist DCS dose regimen, 250 --> 1000 mg/day for 6 wks, as adjuvant pharmacotherapy for treatment-resistant major depressive disorder patients. The study methodology includes the assessment of DCS effects upon symptoms profile, neurocognitive tests performance, amino acids serum levels, and brain electrophysiology parameters associated with the prepulse inhibition-startle response paradigm. It is hypothesized that significant beneficial DCS treatment effects will be registered.

Conditions

Major Depressive Disorder

Keywords

Major depressive disorder; NMDA receptor; Treatment-Resistant; D-cycloserine

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: TRIPLE

Study Groups

1

Randomization to 2 treatment groups. One group receives adjuvant treatment with D-cycloserine, up to 1 g/day. The second group receives adjuvant treatment with placebo, up to 1 g/day.

Group Type: EXPERIMENTAL

D-cycloserine

Intervention Type: DRUG

D-cycloserine (DCS , Seromycin) is a broad spectrum antibiotic, in use for over thirty years against tuberculosis, that acts as a partial agonist at the NMDAR-associated GLY site.

Interventions

D-cycloserine

D-cycloserine (DCS , Seromycin) is a broad spectrum antibiotic, in use for over thirty years against tuberculosis, that acts as a partial agonist at the NMDAR-associated GLY site.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• DSM-IV diagnosis of major depression .
• HAMD scale score of ≥20 despite at least two adequate antidepressant treatment trials during the current episode.

Exclusion Criteria

• Underwent ECT treatment during the 3 months preceding the study.
• Change in psychotropic medications doses during the 3 weeks preceding the study.
• Concurrent unstable medical or neurological illness.
• Patients are judged to be potentially violent towards themselves or others, or have a history of drug/alcohol abuse.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Alliance for Research on Schizophrenia and Depression

OTHER

Sponsor Role: collaborator

Herzog Hospital

OTHER

Sponsor Role: lead

Responsible Party

Heresco-Levi Uriel

Princepal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Uriel Heresco-Levy, M.D.

Role: PRINCIPAL_INVESTIGATOR

Ezrath Nashim - Herzog Memorial Hospital

Locations

Ezrath Nashim - Herzog Memorial Hospital & Community Clinics

Jerusalem, , Israel

Ezrath Nashim - Herzog Memorial Hospital

Jerusalem, , Israel

Countries

Israel

References

Dean RL, Hurducas C, Hawton K, Spyridi S, Cowen PJ, Hollingsworth S, Marquardt T, Barnes A, Smith R, McShane R, Turner EH, Cipriani A. Ketamine and other glutamate receptor modulators for depression in adults with unipolar major depressive disorder. Cochrane Database Syst Rev. 2021 Sep 12;9(9):CD011612. doi: 10.1002/14651858.CD011612.pub3.

Reference Type: DERIVED

PMID: 34510411 (View on PubMed)

Other Identifiers

Herzog - protocol 5372

Identifier Type: -

Identifier Source: secondary_id

Heresco 4 CTIL

Identifier Type: -

Identifier Source: org_study_id

NCT00781014

Identifier Type: -

Identifier Source: nct_alias