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Bipolar DisorderNCT00451542

Divalproex vs. Lamotrigine for Bipolar Disorder

An observational study of Bipolar Disorder, run by Tuscaloosa Research & Education Advancement Corporation.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study is a retrospective chart review of patients treated for bipolar disorder at the TVAMC in the past four years cross-referenced with the electronic pharmacy file for having received a prescription of divalproex or lamotrigine. Read more about this study

Who is it for?
Ages 19 years and older
Conditions the study is for
Bipolar Disorder
How many people
1,000 participants
Where
No sites listed yet
Study dates
1 Feb 2006to 1 Feb 2008
Phase
Observational
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with Bipolar Disorder I or II who had a prescription of divalproex or lamotrigine.

Who may be able to join

  • Diagnosis of Bipolar I or Bipolar II disorder
  • Prescription of divalproex (any formulation except for Depakene/valproic acid) or lamotrigine in the electronic pharmacy profile.
  • Age 19 or older
  • Demonstrated stability for at least 4 weeks on an adequate dose of each medication (at least 50mg/d lamotrigine or 15mg/kg/day divalproex).
  • Treatment at the TVAMC for at least 6 months following the prescription of divalproex or lamotrigine.

Who cannot join

  • Primary diagnosis of schizoaffective or schizophrenia during the evaluation period.
  • Prescription of divalproex and lamotrigine given concurrently during the observation period.
  • History of Dementia or cognitive disorders

About this study

Official title: Time to Relapse During Treatment With Divalproex vs. Lamotrigine for Bipolar Disorder

This study is a retrospective chart review of patients treated for bipolar disorder at the TVAMC in the past four years cross-referenced with the electronic pharmacy file for having received a prescription of divalproex or lamotrigine.

Read the detailed description

The primary objective of the study is to assess the long-term outcome in bipolar patients treated with divalproex versus lamotrigine in a retrospective chart review of veterans as measured by time to relapse into any significant mood episode (i.e. mania or depression). The primary hypothesis is that bipolar patients will demonstrate significantly greater time to relapse in those treated with divalproex compared to those treated with lamotrigine. The secondary objective of the study is to assess the safety and relative tolerability of divalproex and lamotrigine in this population based on discontinuation due to side or adverse effect.

Keywords
Bipolar Disorder, Relapse, Retrospective
Medical subject headings
Bipolar Disorder, Recurrence

Timeline

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

  1. First posted23 Mar 2007 (estimated)
  2. Study start1 Feb 2006
  3. Primary completion1 May 2007
  4. Study completion1 Feb 2008

Why it stopped: Sample too small in retrospective chart review to conduct analysis

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Retrospective
Enrolment
1,000 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00451542
Sponsor's protocol ID
0063
Status last verified
Apr 2017
First submitted
21 Mar 2007
Last updated
27 Apr 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Vieta E, Rosa AR. Evolving trends in the long-term treatment of bipolar disorder. World J Biol Psychiatry. 2007;8(1):4-11. doi: 10.1080/15622970601083280.

    PubMed 17366344

Questions about this trial

What is this clinical trial studying?

An observational study of Bipolar Disorder, run by Tuscaloosa Research & Education Advancement Corporation.

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 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: stopped early, as of the sponsor's last update on 27 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.

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?

The study was stopped early (reason given: Sample too small in retrospective chart review to conduct analysis). 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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00451542, 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 27 Apr 2017.

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Divalproex vs. Lamotrigine for Bipolar Disorder | AzTrials