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Major Depressive DisorderPhase 2NCT00265291

Antidepressant Treatment of Mexican-Americans: UCLA Pharmacogenetics and Pharmacogenomics Research Group

A Phase 2 study testing fluoxetine or desipramine in people with Major Depressive Disorder and Major Depression, run by National Institute of General Medical Sciences (NIGMS) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Our goal is to study pharmacogenetics in Mexican-Americans, using depression treatments as a proof of the concept that pharmacogenetic approaches can be used to optimize treatment strategies for common and complex disorders in this population. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
What is being tested?
fluoxetine or desipramine
How many people
700 participants
Where
1 siteUnited States
Study dates
Nov 1999to Oct 2008
Phase
Phase 2
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 18 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Inclusion Criteria: 1) At least 3 out of 4 grandparents born in Mexico [12]. 2) DSM-IV diagnosis of current, unipolar major depressive episode [13]. 3) 21-Item Hamilton Depression Rating Scale (HAM-D) [14] score of 18 or greater with item #1 (depressed mood) rated 2 or greater. 4) Age between 18-70 years.

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Exclusion Criteria: 1) Any axis I disorder other than major depressive disorder (e.g. dementia, psychotic illness, bipolar disorder, adjustment disorder) or primary anxiety disorders. 2) Active medical illnesses that could be related to the ongoing depression (e.g. untreated hypothyroidism, recent myocardial infarction or cerebrovascular accident within the past six months, uncontrolled hypertension or diabetes). 3) Current suicidal ideation with a plan and strong intent, or recent serious suicide attempt. 4) Pregnant or lactating women, or women of childbearing age not using contraception. 5) History of electroconvulsive therapy in the last six months. 6) Current use of medications with central nervous system activity which interfere with EEG activity (e.g. benzodiazepines) or any other antidepressant treatment within the 2 weeks prior to enrollment. 7) History of poor response to therapeutic treatment with desipramine or fluoxetine. 8) Illicit drug use and/or alcohol abuse in the last three months. 9) Current enrollment in counseling or psychotherapies.

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Trial locations and contacts

1 site in 1 country.

United States1 site
  • Center for Pharmacogenomics, University of Miami

    Miami, Florida, 33136

Other trials in United States

About this study

Our goal is to study pharmacogenetics in Mexican-Americans, using depression treatments as a proof of the concept that pharmacogenetic approaches can be used to optimize treatment strategies for common and complex disorders in this population.

Read the detailed description

This is a single site, 8-week, double-blinded, placebo lead-in trial with fluoxetine or desipramine. All subjects have a comprehensive psychiatric and medical assessment, and if enrolled, continued with two consecutive phases of the study: 1) A one-week, single-blind placebo lead-in phase to eliminate placebo responders. 2) Subsequent random assignment to one of two treatment groups: fluoxetine 10-40 mg/day or desipramine 50-200 mg/day. Given the proven efficacy of these antidepressant medications, a placebo lead-in period followed by active treatment for all patients has been utilized in order to minimize human subjects at risk.

Being tested
fluoxetine or desipramine
Keywords
Depression, mood disorders, affective disorders, pharmacogenetics, pharmacogenomics
Medical subject headings
Depressive Disorder, Major, Depressive Disorder, Depression, Mood Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • fluoxetine or desipramineDrug

    Also called Prozac

    fluoxetine 5-40 mg/day desipramine 50-150 mg/day

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Hamilton Depression Rating Scale (HAM-D) on a weekly basis

    Measured: 8 weeks

Secondary outcomes (1)
  1. The Hamilton Anxiety Rating Scales (HAM-A), the Global Assessment Scale (GAS), the Beck Depression Inventory (BDI), and the Center for Epidemiological Depression Rating Scale (CES-D) on a weekly basis

    Measured: 8 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Dec 2005 (estimated)
  2. Study startNov 1999
  3. Primary completionMay 2006
  4. Study completionOct 2008

Resources

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Single group
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
700 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00265291
Sponsor's protocol ID
U01GM061394
Status last verified
Sep 2008
First submitted
13 Dec 2005
Last updated
10 Oct 2008
Results posted
No
Data monitoring committee
Yes

Publications

  • Flores DL, Alvarado I, Wong ML, Licinio J, Flockhart D. Clinical implications of genetic polymorphism of CYP2D6 in Mexican Americans. Ann Intern Med. 2004 Jun 1;140(11):W71. doi: 10.7326/0003-4819-140-11-200406010-00028-w2. No abstract available.

    PubMed 15172931
  • Licinio J, O'Kirwan F, Irizarry K, Merriman B, Thakur S, Jepson R, Lake S, Tantisira KG, Weiss ST, Wong ML. Association of a corticotropin-releasing hormone receptor 1 haplotype and antidepressant treatment response in Mexican-Americans. Mol Psychiatry. 2004 Dec;9(12):1075-82. doi: 10.1038/sj.mp.4001587.

    PubMed 15365580
  • Wong ML, Arcos-Burgos M, Liu S, Licinio AW, Yu C, Chin EWM, Yao WD, Lu XY, Bornstein SR, Licinio J. Rare Functional Variants Associated with Antidepressant Remission in Mexican-Americans: Short title: Antidepressant remission and pharmacogenetics in Mexican-Americans. J Affect Disord. 2021 Jan 15;279:491-500. doi: 10.1016/j.jad.2020.10.027. Epub 2020 Oct 17.

    PubMed 33128939
  • Wong ML, Dong C, Flores DL, Ehrhart-Bornstein M, Bornstein S, Arcos-Burgos M, Licinio J. Clinical outcomes and genome-wide association for a brain methylation site in an antidepressant pharmacogenetics study in Mexican Americans. Am J Psychiatry. 2014 Dec 1;171(12):1297-309. doi: 10.1176/appi.ajp.2014.12091165. Epub 2014 Oct 31.

    PubMed 25220861
  • Licinio J, Dong C, Wong ML. Novel sequence variations in the brain-derived neurotrophic factor gene and association with major depression and antidepressant treatment response. Arch Gen Psychiatry. 2009 May;66(5):488-97. doi: 10.1001/archgenpsychiatry.2009.38.

    PubMed 19414708

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing fluoxetine or desipramine in people with Major Depressive Disorder and Major Depression, run by National Institute of General Medical Sciences (NIGMS) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

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: finished, as of the sponsor's last update on 10 Oct 2008. 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 United States. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The Hamilton Depression Rating Scale (HAM-D) on a weekly basis (time frame: 8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00265291, which also lists 5 linked publications.

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 10 Oct 2008.

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