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Bipolar DisorderPhase 4NCT00188643

Venlafaxine Versus Lamotrigine in the Treatment of Bipolar I/II Depression

A Phase 4 study testing Venlafaxine and Lamotrigine in people with Bipolar Disorder, run by University Health Network, Toronto at 1 site in Canada.

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

The primary objective of this study is to assess the efficacy of venlafaxine XR and lamotrigine when each is added to mood stabilizer therapy in patients with acute depressive episodes of bipolar I or Bipolar II disorder. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Bipolar Disorder
What is being tested?
Venlafaxine and Lamotrigine
How many people
40 participants
Where
1 siteCanada
Study dates
Jan 2002to Jan 2007
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1. Meets DSM-IV criteria for a diagnosis of Bipolar I disorder, most recent episode depression, or bipolar II disorder, most recent episode depression using the structured clinical interview for DSM-IV Axis 1 disorders 2. Subjects must have a Hamilton depression rating scale score of >16. 3. Patients at visit 1 must have documented trials (levels must be obtained) of their mood stabilizer for at least 2 weeks 4. Subjects must be between the ages of 18-70, male or female 5. Treatment with oral antipsychotics, anticonvulsants or benzodiazepines prior to enrolment or during the study will be permitted, but not other antidepressants.
  • 6. Female patients of childbearing potential must be using a medically accepted means of contraception.
  • 7. Patient is judged by the investigator to be in generally good health 8. Education level and a degree of understanding is such that the patient can communicate effectively with the investigator.
  • 9. Patient must be capable of providing informed consent.

Who cannot join

  • 1. Treatment with antidepressant medication within one day prior to visit 1 or during the protocol.
  • 2. Patients previously showing poor therapeutic response to venlafaxine XR or lamotrigine 3. Judged clinically to be at serious suicidal risk. 4. DSM-IV criteria for substance dependence (except nicotine or caffeine) within the past 30 days 5. Course of ECT (electroconvulsive therapy) in the preceding 4 weeks prior to visit 1 or during the protocol.
  • 6. Patients who suffer from a major neurological or medical illness. 7. Current diagnosis of schizophrenia or other psychotic disorders as defined in the DSM-IV 8. Uncorrected hypothyroidism or hyperthyroidism 9. Female patients who are either pregnant or nursing 10. Elevated thyroid stimulating hormone (TSH).

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Toronto Western Hospital

    Toronto, Ontario, M5T2S8

Other trials in Canada

About this study

Official title: Double-Blind, Acute Depression Study Comparing Venlafaxine XR and Lamotrigine When Added to Mood Stabilizer in the Treatment of Bipolar Depression

The primary objective of this study is to assess the efficacy of venlafaxine XR and lamotrigine when each is added to mood stabilizer therapy in patients with acute depressive episodes of bipolar I or Bipolar II disorder. Efficacy of therapy will be evaluated using improvements in clinical symptomatology after 8 weeks of treatment as measured by reductions on the Hamilton Depression Rating Scale (HDRS-29) total score >50% from baseline. We also would like to assess the efficacy of venlafaxine XR and lamotrigine when each is added to mood stabilizer therapy in improving clinical symptomatology after 8 weeks of therapy as well as to evaluate the side effect profile, safety and tolerability of venlafaxine XR and lamotrigine.

Read the detailed description

The primary objective of this study is to assess the efficacy of venlafaxine XR and lamotrigine when each is added to mood stabilizer therapy in patients with acute depressive episodes of bipolar I or Bipolar II disorder. Efficacy of therapy will be evaluated using improvements in clinical symptomatology after 8 weeks of treatment as measured by reductions on the Hamilton Depression Rating Scale (HDRS-29) total score >50% from baseline. We also would like to assess the efficacy of venlafaxine XR and lamotrigine when each is added to mood stabilizer therapy in improving clinical symptomatology after 8 weeks of therapy as well as to evaluate the side effect profile, safety and tolerability of venlafaxine XR and lamotrigine.

Being tested
Venlafaxine and Lamotrigine
Keywords
Bipolar Disorder, Depression, Anticonvulsants, Antidepressants
Medical subject headings
Bipolar Disorder, Depression

What participants receive

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

  • Venlafaxine and LamotrigineDrug

What is being measured

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

  1. Hamilton Depression Rating Scale, 21 item

Secondary outcomes (5)
  1. Young Mania Rating Scale (YMRS)

  2. Montgomery Asberg Depression Rating Scale (MADRS)

  3. Clinical Global Impression (CGI-I, CGI-S)

  4. Quality of Life Enjoyment

  5. Global Assessment of Functioning

Timeline

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

  1. First posted16 Sep 2005 (estimated)
  2. Study startJan 2002
  3. Study completionJan 2007

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
Double blind
Enrolment
40 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00188643
Sponsor's protocol ID
001
Status last verified
Feb 2005
First submitted
12 Sep 2005
Last updated
9 Feb 2011
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Venlafaxine and Lamotrigine in people with Bipolar Disorder, run by University Health Network, Toronto at 1 site in Canada.

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 4 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 9 Feb 2011. 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 Canada. 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?

Hamilton Depression Rating Scale, 21 item. 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 9 Feb 2011.

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