- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00715559
Cysteamine Therapy for Major Depressive Disorder
April 5, 2017 updated by: James Murrough, Icahn School of Medicine at Mount Sinai
An Open-Label Study of Cysteamine Bitartrate in Treatment-Resistant Major Depression
The purpose of this study is to determine whether cysteamine bitartrate, an FDA-approved drug for a non-psychiatric condition, is safe and effective for the treatment of major depression.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Detailed Description
Major depressive disorder (MDD) is a chronic, disabling illness affecting about 17% of the general population.
Despite advances in treatment, about two-thirds of patients fail to respond to an initial trial of pharmacotherapy.
Brain-derived neurotrophic factor (BDNF) is a neural growth-promoting polypeptide found in the central nervous system, and has been implicated in the pathophysiology and potential treatment of MDD.
A multitude of studies have shown low levels of BDNF in subjects with MDD, which have normalized after treatment with an antidepressant.
Traditional antidepressants such as serotonin reuptake inhibitors may increase BDNF via an indirect intracellular pathway.
The current study drug, cysteamine bitartrate (Cystagon), is FDA approved for the treatment nephropathic cystinosis and has been shown to increase BNDF in neuronal tissue, and to stimulate cell growth.
Cysteamine has already been investigated in humans as a potential treatment for Huntington's Disease.
Given the evidence of decreased levels in major depression, and subsequent increase post-treatment with antidepressants, BDNF may play a key role in developing novel treatments for patients who have failed conventional agents.
Therefore, drugs that can demonstrably increase central BDNF, such as cysteamine, may have significant potential as novel antidepressant medications.
Study Type
Interventional
Enrollment (Actual)
3
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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New York
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New York, New York, United States, 10029
- Mount Sinai School of Medicine
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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
16 years to 63 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Male or female patients, 21-65 years of age.
- Female subjects who are not of childbearing potential (i.e., surgically sterile, postmenopausal for at least one year) or must be using a medically accepted means of contraception. Women using oral contraceptive medication for birth control must also be using a barrier contraceptive. Women of childbearing potential must also have a negative serum B-HCG at pre-study.
- Subjects must fulfill DSM-IV criteria for Major Depression without psychotic features, based on clinical assessment by a study psychiatrist and confirmed by a structured diagnostic interview, the Structured Clinical Interview for DSM-IV TR Axis I Disorders, (SCID-P).
- Subjects have a history of at least one previous episode of depression prior to the current episode (recurrent major depressive disorder) or have chronic major depressive disorder (at least two years' duration).
- Subjects have not responded to an adequate trial of one antidepressant in the current episode as determined by Antidepressant Treatment History Form (ATHF) criteria (score > 3) (Sackeim 2001)
- Subjects must have an initial score of ³ 32 on the IDS-C at both Visit 1 and Visit 2.
- Each subject must have a level of understanding sufficient to agree to all tests and examinations required by the protocol and must sign an informed consent document.
- Current major depressive episode is of at least 4 weeks duration
Exclusion Criteria:
- Presence of psychotic features, diagnosis of schizophrenia or any other psychotic disorder, or bipolar disorder/cyclothymia as defined in the DSM-IV.
- Lifetime histories of autism, mental retardation, pervasive developmental disorders, OCD, or Tourette's
- Current Eating Disorder
- Subjects with a history of DSM-IV drug or alcohol dependency or abuse (except for nicotine or caffeine) within the preceding 3 months.
- Female subjects who are either pregnant or nursing.
- Serious, unstable illnesses including hepatic, renal, respiratory, cardiovascular (including ischemic heart disease), endocrinologic, neurologic (including history of severe head injury), immunologic, or hematologic disease.
- Hypersensitivity to cysteamine or penicillamine
- Past history of severe gastrointestinal disease (including peptic ulcers or inflammatory bowel disease), or current gastroesophageal reflux disease
- Subjects with a history of neutropenia or medication-induced blood dyscrasia.
- Clinically significant abnormal findings of laboratory parameters, physical examination, or ECG.
- Subjects with uncorrected hypothyroidism or hyperthyroidism.
- Subjects with one or more seizures without a clear and resolved etiology.
- Treatment with a reversible MAOI within 2 weeks prior to Visit 2.
- Treatment with fluoxetine within 4 weeks prior to Visit 2.
- Treatment with any other concomitant medication not allowed 14 days prior to study Visit 2.
- Treatment with clozapine or ECT within 3 months prior to study Visit 2.
- Judged clinically to be at serious suicidal or homicidal risk.
- Participation in a clinical trial of another investigational drug within 1 month prior to study entry.
- Patients starting hormonal treatment (e.g., estrogen) in the last 3 months prior to visit 1.
- Psychotherapy or nonpharmacological antidepressant treatments (e.g. light therapy
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: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: cysteamine bitartrate
Participants received cysteamine bitartrate by mouth up to 300 mg three times daily.
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All enrolled participants will begin open treatment with cysteamine on the first visit of the experimental period (after screening, medical clearance and medication washout period if necessary).
The dosing schedule is a flexible regimen starting at 150 mg PO three times daily.
After one week, patients without intolerable side effects will increase the dose to 300 mg three times daily.
The titration schedule will continue up to a maximum of 1800 mg a day.
In case of adverse events, the investigator may decrease the dose by 150 mg daily.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: 8 weeks
|
This scale measures depression severity.
It ranges from a score of 0 to 60, with higher score indicating higher level of depression severity.
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8 weeks
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinical Global Impression Scales for Severity (CGI-S) and Improvement (CGI-I)
Time Frame: 8 weeks
|
This set of scales measures "global" improvement in a patient's level of symptoms, without reference to a particular condition (ie depression).
GCI-S is a measure of severity, which ranges from 0 (not ill) to 7 (severely ill).
CGI-I is a measure of change, with a score of 4 indicating no change, 1 indicating very much improved and 7 indicating very much worse.
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8 weeks
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Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR16)
Time Frame: 8 weeks
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This is a self-report which measures the level of depression severity.
I ranges from 0 (no illness) to 27 (severe illness).
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8 weeks
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Systematic Assessment for Treatment Emergent Effects (SAFTEE)
Time Frame: weekly, for 8 weeks
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The SAFTEE is used to measure somatic and other symptoms which may arise during the course of a clinical trial.
This is a non-quantitative instrument that does not yield a numeric score.
Instead, it provides study subjects the opportunity to check off symptoms listed on a checklist and indicate if the severity of the symptoms is "mild" "moderate" or "severe."
The reported values represent symptoms that were indicated at any point during the 8 week trial at a level of "moderate" or "severe" that also represented a change from a baseline-line pre-intervention SAFTEE assessment.
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weekly, for 8 weeks
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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
July 1, 2008
Primary Completion (Actual)
May 1, 2009
Study Completion (Actual)
May 1, 2009
Study Registration Dates
First Submitted
July 11, 2008
First Submitted That Met QC Criteria
July 11, 2008
First Posted (Estimate)
July 15, 2008
Study Record Updates
Last Update Posted (Actual)
April 7, 2017
Last Update Submitted That Met QC Criteria
April 5, 2017
Last Verified
April 1, 2017
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- GCO # 07-0478
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.
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