DepressionNCT01237275
Development of A Technique to Predict Antidepressant Responsiveness in Depressive Patients
A study testing SSRI treated group in people with Depression and Continuous Antidepressant Abuse, run by Samsung Medical Center at 1 site in South Korea.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 19 to 89 yearsHealthy volunteers can take part
- Conditions the study is for
- Depression, Continuous Antidepressant Abuse, Adverse Reaction to Drug
- What is being tested?
- SSRI treated group
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 300 participants
- Where
- 1 siteSouth Korea
- Study dates
- Oct 1999to Dec 2016
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 19 to 89 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 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
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
About this study
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.
Read the detailed description
The purpose of this study is
- to determine whether serotonin transporter genotypic or functional differences between depressive patients and normal controls were existed.
- to determine the relationship between serotonin transporter polymorphisms and serotonin transporter functional expression.
- to determine whether genomic or functional differences between drug responders and nonresponders predict the response of antidepressant
- Being tested
- SSRI treated group
- Keywords
- Pharmacogenomics, Prediction of Antidepressant Response, Depressed Patients
- Medical subject headings
- Depression, Drug-Related Side Effects and Adverse Reactions
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SSRI treated groupDrug
Also called fluoxetine_Prozac, paroxetine_Paxil, Seroxat, sertraline_Zoloft
characterize in arm of a study (SSRI treated group)
| Study group | Role | What they receive |
|---|---|---|
| SSRI treated group | Experimental | SSRI treated group are depressive patients treated with fluoxetine, paroxetine or sertraline Receives: Drug: SSRI treated group |
What is being measured
The primary outcome is the main question the study is designed to answer.
Antidepressant Response at 2,4,6 weeks
Measured: 6 weeks
Secondary outcomes (1)
Biological value at 0 and 6 weeks
Measured: 6weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Nov 2010 (estimated)
- Study startOct 1999
- Primary completionDec 2003
- Study completionDec 2016 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for DepressionStudies of the same condition, open and under way.
- More trials run by Samsung Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 300 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Samsung Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Doh Kwan Kim, Samsung Medical Center
- Investigators
- Doh Kwan Kim, M.D., Ph.D., Principal investigator, Samsung Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01237275
- Sponsor's protocol ID
- 1999-10-14
- Status last verified
- Dec 2015
- First submitted
- 1 Nov 2010
- Last updated
- 31 Dec 2015
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 31 Dec 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Development of A Technique to Predict Antidepressant Responsiveness in Depressive Patients
- ClinicalTrials.gov ID
- NCT01237275
- Acronym / sponsor ID
- 1999-10-14
- Keywords
- Pharmacogenomics, Prediction of Antidepressant Response, Depressed Patients
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 300 participants (estimated)
- Lead sponsor
- Samsung Medical CenterUniversity, hospital or other
- Study start
- Oct 1999
- Primary completion
- Dec 2003 (actual)
- Study completion
- Dec 2016 (estimated)
- First posted
- 9 Nov 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
The purpose of this study is
- to determine whether serotonin transporter genotypic or functional differences between depressive patients and normal controls were existed.
- to determine the relationship between serotonin transporter polymorphisms and serotonin transporter functional expression.
- to determine whether genomic or functional differences between drug responders and nonresponders predict the response of antidepressant
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| SSRI treated group | Experimental | Drug: SSRI treated groupSSRI treated group are depressive patients treated with fluoxetine, paroxetine or sertraline |
Who may qualify
- Ages
- 19 to 89 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- 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
Key exclusion criteria (2 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SSRI treated groupAlso: fluoxetine_Prozac, paroxetine_Paxil, Seroxat, sertraline_Zoloftcharacterize in arm of a study (SSRI treated group) | Drug | SSRI treated group |
Primary outcome
Antidepressant Response at 2,4,6 weeks
Time frame: 6 weeks
1 secondary outcome
Biological value at 0 and 6 weeks
Time frame: 6weeks
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Dec 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Doh Kwan Kim, M.D., Ph.D. principal investigator
Samsung Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing SSRI treated group in people with Depression and Continuous Antidepressant Abuse, run by Samsung Medical Center at 1 site in South Korea.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 31 Dec 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Antidepressant Response at 2,4,6 weeks (time frame: 6 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Dec 2015.