AzTrials
AzTrials

DepressionPhase 4NCT00200902

Evaluation of Depression Symptoms and Brain Activity Associated With Response to Treatment of Depression

A Phase 4 study testing Venlafaxine (Effexor), Duloxetine (Cymbalta), Escitalopram (Lexapro) and Interpersonal Clinical Interaction (ICI) in people with Depression, run by University of California, Los Angeles 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
Search all trials

Trial summary

This study will use measurements of depression symptoms and brain activity to determine what factors may influence an individual's response to treatment for depression. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Depression
What is being tested?
Venlafaxine (Effexor), Duloxetine (Cymbalta), Escitalopram (Lexapro) and Interpersonal Clinical Interaction (ICI)
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
88 participants
Where
1 siteUnited States
Study dates
Aug 2005to Jun 2009
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clinical diagnosis of unipolar major depression

Who cannot join

  • Substance abuse
  • Psychotic disorder
  • History of severe head trauma

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCLA Laboratory of Brain, Behavior, and Pharmacology

    Los Angeles, California, 90024

Other trials in United States

About this study

Official title: Factors of Treatment Response in Major Depressive Disorder

This study will use measurements of depression symptoms and brain activity to determine what factors may influence an individual's response to treatment for depression.

Read the detailed description

We are using depression symptom measurements and measurements of brain electrical activity (EEG) to determine what factors may influence whether a patient is likely to show a response to antidepressant medication, placebo, or only clinical visits (without the use of pills) during a treatment trial for depression.

Conditions
Depression
Being tested
Venlafaxine (Effexor), Duloxetine (Cymbalta), Escitalopram (Lexapro), Placebo, Interpersonal Clinical Interaction (ICI)
Keywords
Major depressive disorder, MDD, Antidepressant
Medical subject headings
Depression, Depressive Disorder, Major

What participants receive

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

  • Venlafaxine (Effexor), Duloxetine (Cymbalta), Escitalopram (Lexapro)Drug

    Subjects assigned to the placebo (PBO) or medication (MED) condition will enter double-blind treatment with either venlafaxine XR, duloxetine, escitalopram, or placebo after lead-in. They will undergo the same schedule, structure, and intensity of visits as in the ICI condition, but also will be randomized to receive treatment with a pill. Subjects randomized to medication will be started on one tablet each morning of either venlafaxine XR 75 mg., duloxetine 30 mg., or escitalopram 10 mg. Dosages will be increased in a double-blinded manner by increasing the number of pills administered by one pill every three to five days until the final dose is achieved (225 mg., 90 mg., and 30 mg. respectively for venlafaxine XR, duloxetine, and escitalopram). In order to maintain blinding during dosage increase, the number of tablets of placebo will be increased every three to five days as well.

  • PlaceboOther

    Subjects assigned to the placebo (PBO) or medication (MED) condition will enter double-blind treatment with either venlafaxine XR, duloxetine, escitalopram, or placebo after lead-in. They will undergo the same schedule, structure, and intensity of visits as in the ICI condition, but also will be randomized to receive treatment with a pill. Subjects randomized to medication will be started on one tablet each morning of either venlafaxine XR 75 mg., duloxetine 30 mg., or escitalopram 10 mg. Dosages will be increased in a double-blinded manner by increasing the number of pills administered by one pill every three to five days until the final dose is achieved (225 mg., 90 mg., and 30 mg. respectively for venlafaxine XR, duloxetine, and escitalopram). In order to maintain blinding during dosage increase, the number of tablets of placebo will be increased every three to five days as well.

  • Interpersonal Clinical Interaction (ICI)Behavioural

    Interaction with and assessment by clinical research personnel on a fixed schedule, with the pharmacotherapeutic alliance assessed both by research personnel and subjects.

Study groups in NCT00200902
Study groupRoleWhat they receive
MEDActive comparatorFor medication treatment, three different types were utilized and assigned specifically to each subject depending on their condition: MED 1: Venlafaxine XR. MED 2: Duloxetine (Cymbalta) MED 3: Escitalopram (Lexapro)
Receives: Drug: Venlafaxine (Effexor), Duloxetine (Cymbalta), Escitalopram (Lexapro)
Placebo (PBO)Placebo comparatorSubjects enrolled will receive interpersonal clinical interaction (ICI) along with a placebo treatment (Interaction and assessment as in ICI plus double blinded treatment with placebo tablets).
Receives: Other: Placebo
Interpersonal Clinical Interaction (ICI)OtherSubjects assigned to the interpersonal clinical interaction (ICI) will undergo a one-week waiting period after the initial assessment. Visits will involve a session with a research nurse that will be approximately 20 minutes in length; visits at baseline, end of lead-in, and 1, 2, 4, and 8 weeks also will include a brief (5-10 minutes) meeting with a physician.
Receives: Behavioral: Interpersonal Clinical Interaction (ICI)

What is being measured

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

  1. Response as Assessed by Participants' Change in Depression Rating

    Comparison of treatment arms (Medication + ICI, Placebo+ICI, and ICI only). The Hamilton Depression Rating Scale (HAM-D-17) used here is a 17-item scale that measures severity of depression. Items are individually scored from 0-4 or from 0-2 depending on the item, and the individual scores for each item are added to comprise one score. Higher scores indicate greater severity of depression. Possible scores on the scale range from a minimum of zero (0) to a maximum of 52.Response is defined as a 50% decrease in HAMD-17 scoring. Remission defined as a HAMD-17 score of 7 or less.

    Measured: Baseline, Week 8

  2. Average Change in 3 Weeks of Participant Treatment Expectations

    Patient Attitudes and Expectations Form used for assessing expectation. The California Pharmacotherapy Alliance Scale, a measure associated with outcomes of antidepressant pharmacotherapy, used to measure participants' perceptions of: (a) participants' commitment to treatment; (b) participants' working capacity; (c) treatment providers' understanding and involvement; and (d) goal and working strategy consensus between participant and treatment provider. This is a 24-item questionnaire with a 7-point Likert scale (1 = not at all, 7 = very much so). Total score ranges from a minimum of 0 and a maximum of 120. The score is determined by a combination of negative and positive items. To assure negative items are reflected, subtract each of the negative item ratings from 8; for example, a rating of 1 becomes 7 (8 minus 1). The scores are computed by summing the items and dividing the total by 6 to procure the mean rating. A lower score indicates a worse outcome.

    Measured: Averaged over 3 time points (Baseline, randomization, and end of lead-in)

  3. Change in Hamilton Depression Assessment Score

    Comparison of treatment arms (Medication + ICI, Placebo+ICI, and ICI only). The Hamilton Depression Rating Scale used here is a 17-item scale that measures severity of depression. Items are individually scored from 0-4 or from 0-2 depending on the item, and the individual scores for each item are added to comprise one score. Higher scores indicate greater severity of depression/worse outcome. Possible scores on the scale range from a minimum of zero (0) to a maximum of 52.

    Measured: Baseline,Week 8

Timeline

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

  1. First posted20 Sep 2005 (estimated)
  2. Study startAug 2005
  3. Primary completionJun 2009
  4. Study completionJun 2009

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
88 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00200902
Sponsor's protocol ID
R01AT002479-02
Other IDs
R01AT002479-02, 04-02-068
Status last verified
Aug 2024
First submitted
14 Sep 2005
Last updated
13 Aug 2024
Data monitoring committee
Yes

Publications

  • Leuchter AF, Hunter AM, Tartter M, Cook IA. Role of pill-taking, expectation and therapeutic alliance in the placebo response in clinical trials for major depression. Br J Psychiatry. 2014 Dec;205(6):443-9. doi: 10.1192/bjp.bp.113.140343. Epub 2014 Sep 11.

    PubMed 25213159

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Venlafaxine (Effexor), Duloxetine (Cymbalta), Escitalopram (Lexapro) and Interpersonal Clinical Interaction (ICI) in people with Depression, run by University of California, Los Angeles 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?

The sponsor lists 1 inclusion and 3 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: finished, as of the sponsor's last update on 13 Aug 2024. 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Apr 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Response as Assessed by Participants' Change in Depression Rating (time frame: Baseline, Week 8). The study lists 3 primary outcomes in all. 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 NCT00200902, which also lists 1 linked publication.

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 13 Aug 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in