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Bipolar Type II DisorderPhase 4NCT00641927

Antidepressant Therapy for Bipolar II Major Depression

A Phase 4 study testing Venlafaxine and Lithium Carbonate in people with Bipolar Type II Disorder, run by Stanley Medical Research Institute 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

This study examines the relative safety and benefit of antidepressant therapy (versus recommended mood stabilizer therapy)of bipolar type II major depressive episode. We hypothesize that antidepressant therapy will be superior to mood stabilizer therapy with little or no difference in treatment emergent manic symptoms. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Bipolar Type II Disorder
What is being tested?
Venlafaxine and Lithium Carbonate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
1 siteUnited States
Study dates
Apr 2002to Oct 2006
Phase
Phase 4
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • men and women (all races and ethnicity) greater than or equal to18 years of age,
  • DSM IV diagnosis of BP II disorder,
  • Current DSM IV MDE,
  • HAM-D17 score greater than or equal to 16,
  • Drug free from prior psychotropic medication greater than or equal to 7 days (2 weeks for MAOIs)

Who cannot join

  • History of mania,
  • Other primary DSM IV Axis I diagnosis,
  • Alcohol or drug dependence within 3 months,
  • History of nonresponse to Effexor-XR or lithium in the present MDE,
  • History of allergic reaction to Effexor-XR or lithium,
  • Medical contraindications to treatment with Effexor-XR or lithium,
Show all 12Show fewer
  • Unstable medical condition,
  • Pregnant or breast-feeding women,
  • Women of child-bearing potential not using a medically approved form of contraception,
  • Actively suicidal or requiring hospitalization,
  • Requiring concurrent antidepressant, neuroleptic or mood stabilizer therapy,
  • Prior investigational study within 4 weeks of starting active therapy.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Depression Research Unit, Department of Psychiatry, University of Pennsylvania

    Philadelphia, Pennsylvania, 19104-3309

Other trials in United States

About this study

Official title: Acute Antidepressant Therapy in Bipolar II Major Depression

This study examines the relative safety and benefit of antidepressant therapy (versus recommended mood stabilizer therapy)of bipolar type II major depressive episode. We hypothesize that antidepressant therapy will be superior to mood stabilizer therapy with little or no difference in treatment emergent manic symptoms.

Read the detailed description

Bipolar type II (BP II) major depressive episode (MDE), affects 2.5% of the US adult population and results in an estimated healthcare cost of $40 billion annually. BP II disorder is a distinct clinical entity that differs from BP I disorder, and is characterized by a preponderance of MDEs that result in particularly high morbidity and mortality rates. The treatment of BP II MDE remains a challenge for clinicians. Concerns over antidepressant drug (AD) induced manic switch episodes have led current practice guidelines to recommend treating BP II MDE with mood stabilizer (MS) monotherapy and to avoid AD monotherapy. To date, there are no controlled clinical trials to test the validity of these empirical guidelines. Results from our preliminary BP II MDE studies have shown that fluoxetine monotherapy may be safe and effective initial treatment of BP II MDE with a low manic switch rate. Based upon these observations, we now ask (Specific aim #1): "What is the relative safety and efficacy of initial AD monotherapy vs. MS monotherapy of BP II MDE?" and "What is the relative manic switch rate of initial AD vs. MS monotherapy of BP II MDE?" To answer these questions, patients with BP II MDE will be treated in a 12-week, randomized, parallel group comparison of venlafaxine monotherapy vs. lithium monotherapy. We hypothesize that AD monotherapy will have superior efficacy vs. MS monotherapy, and that there will be a similar manic switch rate among both treatment conditions. If our hypotheses are correct, we believe that these results may have an important public health impact on the current practice guidelines for treating BP II MDE.

Being tested
Venlafaxine, Lithium Carbonate
Keywords
bipolar disorder, bipolar type II disorder, antidepressant, mood stabilizer, venlafaxine, lithium carbonate
Medical subject headings
Bipolar Disorder

What participants receive

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

  • VenlafaxineDrug

    Also called Effexor-XR

    37.5 mg - 375 mg daily, 12 Weeks

  • Lithium CarbonateDrug

    Also called Lithium

    300 mg - 2100 mg daily, 12 weeks

Study groups in NCT00641927
Study groupRoleWhat they receive
1ExperimentalAntidepressant
Receives: Drug: Venlafaxine
2Active comparatorDrug
Receives: Drug: Lithium Carbonate

What is being measured

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

  1. Reduction in Hamilton Depression Rating Scale score.

    Measured: 12 Weeks

Secondary outcomes (1)
  1. Change in Young Mania Rating Scale score.

    Measured: 12 Weeks

Timeline

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

  1. First posted24 Mar 2008 (estimated)
  2. Study startApr 2002
  3. Primary completionOct 2006
  4. Study completionOct 2006

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
Parallel groups
Masking
None (open label)
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00641927
Sponsor's protocol ID
01-005
Status last verified
Mar 2008
First submitted
18 Mar 2008
Last updated
24 Mar 2008
Results posted
No
Data monitoring committee
Yes

Publications

  • Shults J, Sun W, Tu X, Kim H, Amsterdam J, Hilbe JM, Ten-Have T. A comparison of several approaches for choosing between working correlation structures in generalized estimating equation analysis of longitudinal binary data. Stat Med. 2009 Aug 15;28(18):2338-55. doi: 10.1002/sim.3622.

    PubMed 19472307

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Venlafaxine and Lithium Carbonate in people with Bipolar Type II Disorder, run by Stanley Medical Research Institute 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 5 inclusion and 12 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 24 Mar 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 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?

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?

Reduction in Hamilton Depression Rating Scale score. (time frame: 12 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 NCT00641927, 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 24 Mar 2008.

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