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Pathological GamblingPhase 3NCT00438776

Safety and Efficacy Trial of Olanzapine in Outpatients With Pathological Gambling

A Phase 3 study testing olanzapine and sugar pill in people with Pathological Gambling, run by Lindner Center of HOPE 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 purpose of this research study is to evaluate the efficacy (effectiveness) and safety of olanzapine in treating pathological gambling. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Pathological Gambling
What is being tested?
olanzapine and sugar pill
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
42 participants
Where
1 siteUnited States
Study dates
Feb 2007to Mar 2009
Phase
Phase 3
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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female outpatients aged 18- 75 years of age.
  • Patients will have problematic gambling behavior of at least 6 months duration that meets the DSM-IV definition of pathological gambling and a South Oaks Gambling Screen Score greater than 5.
  • All patients will have a complete medical and psychiatric history, physical examination, laboratories, and ECG before study entry.
  • Baseline laboratory values and ECG must be normal, or abnormalities must be clinically insignificant.
  • Patients will not have received any psychotropic medication for at least one week prior to the first study visit.

Who cannot join

  • Patients who have any significant and/or unstable gastrointestinal, neurological, endocrine, cardiovascular, pulmonary, renal, hepatic, immunological or hematological disease; organic brain disease; or cancer as determined by history, physical, ECG, and laboratory examination.
  • Patients who are pregnant, intending to become pregnant, nursing, at risk for pregnancy, or not practicing medically acceptable birth control. (A blood pregnancy test will be performed at the screening visit).
  • Patients who have ever had psychotic symptoms, who have ever met DSM-IV criteria for a manic episode (i.e., have bipolar I disorder), or who have met criteria for DSM-IV psychoactive substance dependence in the past 1 month.
  • Patients who meet DSM-IV criteria for antisocial or borderline personality disorder.
  • Patients who use any medications which, in the judgment of the investigator, might have psychotropic effects, or interact unfavorably with olanzapine. For example, patients taking diet pills or stimulants will not be enrolled.
  • Patients who have taken any psychiatric medication within 7 days prior to the screening assessment.
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  • Patients who have a history of hypersensitivity to olanzapine.
  • Patients who display clinically significant suicidal ideation.
  • Patients who have recently (within the past 3 months) begun any type of non-pharmacologic treatment for pathological gambling (including psychotherapy, behavior therapy, group therapy, or family therapy). This does not exclude participation in support groups (e.g., Gamblers Anonymous.) Patients who have been involved in long-standing psychological therapies (e.g., psychotherapy for at least the last 3 months) will be permitted to continue in that therapy provided that no new therapeutic technique or increase in frequency of psychotherapy occurs concurrent with the study.
  • Patients who exhibit or suggest that they may display behavior that will not be conducive to the study procedures.

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

The purpose of this research study is to evaluate the efficacy (effectiveness) and safety of olanzapine in treating pathological gambling.

Being tested
olanzapine, sugar pill
Medical subject headings
Gambling

What participants receive

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

  • olanzapineDrug

    Also called zyprexa

    2.5mg to 15mg daily

  • sugar pillDrug

    Also called fake pill

    matching placebo to olanzapine

Study groups in NCT00438776
Study groupRoleWhat they receive
olanzapineActive comparatoractive zyprexa (olanzapine)
Receives: Drug: olanzapine
sugar pillPlacebo comparatorPlacebo (fake pill)
Receives: Drug: sugar pill

What is being measured

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

  1. Pathological Gambling Adaptation of the Yale-Brown Obsessive Compulsive Scale (PG-YBOCS)

    Measured: per protocol

Timeline

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

  1. First posted22 Feb 2007 (estimated)
  2. Study startFeb 2007
  3. Primary completionMar 2009
  4. Study completionMar 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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00438776
Sponsor's protocol ID
F1D-US-X165
Status last verified
Dec 2011
First submitted
20 Feb 2007
Last updated
13 Dec 2011
Results posted
No

Publications

  • McElroy SL, Nelson EB, Welge JA, Kaehler L, Keck PE Jr. Olanzapine in the treatment of pathological gambling: a negative randomized placebo-controlled trial. J Clin Psychiatry. 2008 Mar;69(3):433-40. doi: 10.4088/jcp.v69n0314.

    PubMed 18251624

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing olanzapine and sugar pill in people with Pathological Gambling, run by Lindner Center of HOPE 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 10 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 Dec 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 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

Pathological Gambling Adaptation of the Yale-Brown Obsessive Compulsive Scale (PG-YBOCS) (time frame: per protocol). 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 NCT00438776, 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 Dec 2011.

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