Development of A Technique to Predict Antidepressant Responsiveness in Depressive Patients

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Doh Kwan Kim, Samsung Medical Center Identifier:
First received: November 1, 2010
Last updated: June 4, 2015
Last verified: June 2015

First, the investigators examined the functional relevance of serotonin transporter polymorphisms by quantifying the activity of serotonin transporter in blood platelets of genotyped healthy volunteers and patients with major depression.

Second, the investigators studied response to SSRIs in relation to 5-HTTLPR genotype and also to the functional expression of 5-HTT in platelets.

Condition Intervention
Continuous Antidepressant Abuse
Adverse Reaction to Drug
Drug: SSRI treated group

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Development of A Technique to Predict Antidepressant Responsiveness in Depressive Patients

Resource links provided by NLM:

Further study details as provided by Samsung Medical Center:

Primary Outcome Measures:
  • Antidepressant Response at 2,4,6 weeks [ Time Frame: 6 weeks ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • Biological value at 0 and 6 weeks [ Time Frame: 6weeks ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 300
Study Start Date: October 1999
Estimated Study Completion Date: December 2015
Primary Completion Date: December 2003 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: SSRI treated group
SSRI treated group are depressive patients treated with fluoxetine, paroxetine or sertraline
Drug: SSRI treated group
characterize in arm of a study (SSRI treated group)
Other Names:
  • fluoxetine_Prozac
  • paroxetine_Paxil, Seroxat
  • sertraline_Zoloft

Detailed Description:

The purpose of this study is

  1. to determine whether serotonin transporter genotypic or functional differences between depressive patients and normal controls were existed.
  2. to determine the relationship between serotonin transporter polymorphisms and serotonin transporter functional expression.
  3. to determine whether genomic or functional differences between drug responders and nonresponders predict the response of antidepressant

Ages Eligible for Study:   19 Years to 89 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Eligible patients were enrolled in the clinical trials program of hte Samsung Medical Center Geropsychiatry and Affective Disorder Clinics(Seoul, Korea). They received a semistructured diagnostic interview, the Samsung Psychiatric Evaluation Schedule. The affective disorder section of the Samsung Psychiatric Evaluation Schedule uses the Korean version of the structured clinical interview for the diagnostic and statistical manual of mental disorders, Fourth edition.
  • interview with one more patient's family member for objective diagnosis and final diagnosis decision by agreements of two more psychiatric physicians

Exclusion Criteria:

  • received psychotropic medication within 2 weeks of the study or fluoxetine within 4 weeks
  • potential study participants for pregnancy, significant medical conditions, abnormal laboratory baseline values, unstable psychiatric features(eg.suicidal), history of alcohol of drug dependence, seizures, head trauma with loss of consciousness, neurological illness, or concomitant Axis I psychiatric disorder.
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Please refer to this study by its identifier: NCT01237275

Korea, Republic of
Samsung Medical Center
Kangnam, Seoul, Korea, Republic of
Sponsors and Collaborators
Samsung Medical Center
Principal Investigator: Doh Kwan Kim, M.D., Ph.D. Samsung Medical Center
  More Information

No publications provided

Responsible Party: Doh Kwan Kim, M.D.,Ph.D., Samsung Medical Center Identifier: NCT01237275     History of Changes
Other Study ID Numbers: 1999-10-14
Study First Received: November 1, 2010
Last Updated: June 4, 2015
Health Authority: South Korea: Institutional Review Board

Keywords provided by Samsung Medical Center:
Prediction of Antidepressant Response
Depressed Patients

Additional relevant MeSH terms:
Drug-Related Side Effects and Adverse Reactions
Chemically-Induced Disorders
Antidepressive Agents
Central Nervous System Agents
Pharmacologic Actions
Psychotropic Drugs
Therapeutic Uses processed this record on October 09, 2015