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Bipolar DisorderPhase 4NCT00394095

Topiramate vs. Placebo in Preventing Weight Gain in Bipolar Disorder Treated With Olanzapine

A Phase 4 study testing Topiramate in people with Bipolar Disorder and Weight Gain, run by University of Cincinnati 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

The primary objective of this study is to examine the efficacy of topiramate in combination with olanzapine for the prevention of weight gain in youth with bipolar disorder. The secondary objective is to examine the tolerability of topiramate in combination with olanzapine for the prevention of weight gain in youth… Read more about this study

Who is it for?
Ages 10 to 18 years
Conditions the study is for
Bipolar Disorder, Weight Gain
What is being tested?
Topiramate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
31 participants
Where
1 siteUnited States
Study dates
Dec 2006to Sep 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 10 to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Male or female patients, ages 10-18 years.
  • Female patients of menarche must be using a medically accepted means of contraception (e.g. oral contraceptives, Depo-Provera, abstinence).
  • Each patient's authorized legal guardian must understand the nature of the study and must provide written informed consent. Each patient must also give assent to study participation.
  • Patients must have a diagnosis of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV-TR) bipolar disorder, type I and currently display an acute manic or mixed episode as determined by K-SADS (Geller et al 2000).
  • Patients must have a baseline (day 0) Young Mania Rating Scale score of at least 16.
  • Subjects should be fluent in English.

Who cannot join

  • Female patients who are either pregnant or lactating.
  • Clinically significant or unstable hepatic, renal, gastroenterologic, respiratory, cardiovascular, endocrinologic, immunologic, hematologic or other systemic medical conditions.
  • Any history of current or past diabetes that has been treated with pharmacological intervention.
  • Neurological disorders including epilepsy, stroke, or severe head trauma.
  • Clinically significant laboratory abnormalities (> 3 times upper limit of normal), on any of the following tests: CBC with differential, electrolytes, BUN, creatinine, hepatic transaminases, lipid profile, fasting glucose, urinalysis, or thyroid indices. Clinically abnormal ECG.
  • Manic or mixed episode due to a general medical condition or substance-induced mania (DSM-IV-TR).
Show all 15Show fewer
  • Mental retardation (IQ <70).
  • History of hypersensitivity to or intolerance of olanzapine or topiramate.
  • Prior history of olanzapine or topiramate non-response or allergic reaction.
  • DSM-IV substance (except nicotine or caffeine) dependence within the past 3 months.
  • Judged clinically to be at suicidal risk (defined as having active suicidal ideation, intent or plan, or a serious suicide attempt within 30 days, or a baseline Children's Depression Rating Scale suicide score of >3).
  • Treatment with an injectable depot neuroleptic within less than one dosing interval between depot neuroleptic injections and day 0.
  • Treatment with concurrent mood stabilizers or anticonvulsants, benzodiazepines (except as described below), psychostimulants, guanethidine, or guanadrel, or antidepressants.
  • Schizophrenia or other psychotic disorders (including schizophreniform disorder, schizoaffective disorder, delusional disorder, brief psychotic disorder, shared psychotic disorder, psychotic disorder due to a general medical condition, substance-induced psychotic disorder, psychotic disorder not otherwise specified) as defined in the DSM-IV.
  • Major depressive disorder, dysthymic disorder, depressive disorder not otherwise specified.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Cincinnati Medical Center

    Cincinnati, Ohio, 45267-0559

Other trials in United States

About this study

Official title: A Double-Blind, Randomized, Placebo-Controlled, Pilot Study of Topiramate vs. Placebo in Combination With Olanzapine for the Prevention of Weight Gain in Manic or Mixed Youth With Bipolar Disorder

The primary objective of this study is to examine the efficacy of topiramate in combination with olanzapine for the prevention of weight gain in youth with bipolar disorder. The secondary objective is to examine the tolerability of topiramate in combination with olanzapine for the prevention of weight gain in youth with bipolar disorder.

Read the detailed description

After consent and screening, patients will be initiated on 5mg or 10mg per day of olanzapine. Olanzapine doses will be titrated to 10-20 mg of olanzapine over one week, to a maximum of 20mg by day 21. Patients will also receive either topiramate (25mg bid titrated over 18 days to 150 mg bid. with flexibility to titrate to 200mg bid) or matched placebo. Topiramate will be initiated at a dose of 25 mg bid and will be increased by 25 mg bid every three days as tolerated. Patients will be evaluated by a blinded (to treatment status and adverse events) rater.

Being tested
Topiramate, Placebo
Keywords
Bipolar Disorder, Weight Gain
Medical subject headings
Bipolar Disorder, Weight Gain

What participants receive

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

  • TopiramateDrug

    Also called Topamax

    Oral topiramate 300-400mg/day for 12 weeks

  • PlaceboDrug

    Also called Sugar pill

    Matched placebo to Experimental arm

Study groups in NCT00394095
Study groupRoleWhat they receive
Topiramate GroupExperimentalPatients' initial dose of topiramate 25mg bid, which was titrated over 18 days to 150 mg bid (with flexibility to titrate to 200mg bid) as tolerated.
Receives: Drug: Topiramate
Placebo GroupPlacebo comparatorSugar pill
Receives: Drug: Placebo

What is being measured

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

  1. Change in Body Mass Index (BMI)

    For all participants, BMI was computed using Change in BMI [kg/m2 (weight/height2)] over 12 weeks from Baseline to Week 12.

    Measured: 12 weeks

  2. Change in Body Weight

    For all participants, change in body weight in kg over 12 weeks from Baseline to Week 12.

    Measured: 12 weeks

Secondary outcomes (1)
  1. Tolerability of Topiramate

    Maximum tolerated dosage of topiramate or placebo at end of study participation.

    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 posted31 Oct 2006 (estimated)
  2. Study startDec 2006
  3. Primary completionAug 2009
  4. Study completionSep 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
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00394095
Sponsor's protocol ID
F1D-MC-X304
Status last verified
Mar 2025
First submitted
27 Oct 2006
Last updated
9 Apr 2025
Data monitoring committee
Yes

Publications

  • DelBello MP, Bruns KM, Bloom T, Patino Duran LR, Strawn J, Adler CM, Welge J. A Double-Blind Placebo-Controlled Pilot Study of Topiramate in Manic Adolescents Treated with Olanzapine. J Child Adolesc Psychopharmacol. 2023 May;33(4):126-133. doi: 10.1089/cap.2022.0098. Epub 2023 May 2.

    PubMed 37130314

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Topiramate in people with Bipolar Disorder and Weight Gain, run by University of Cincinnati 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 6 inclusion and 15 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 Apr 2025. 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 4 Apr 2013). 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?

Change in Body Mass Index (BMI) (time frame: 12 weeks). The study lists 2 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 NCT00394095, 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 9 Apr 2025.

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