ClinicalTrials.gg
TerminatedNCT00732251Updated Oct 2, 2019Results posted

Allopurinol Maintenance Study for Bipolar Disorder

A Phase 4 interventional study of Allopurinol in Bipolar Disorder, Mania and Mixed Mania, sponsored by Cedars-Sinai Medical Center. Terminated at 1 site in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2019-10-02.

Sponsored by Cedars-Sinai Medical Center · Phase 4, Interventional, and Prevention

Why this study was terminated
The outpatient area of the department of psychiatry at CSMC closed.
Phase
Phase 4
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The purpose of this study is to investigate the efficacy of allopurinol as an augmentation agent for the prevention of mania in bipolar disorder patients with currently stable mood.

Read the detailed description

The purpose of this study is to investigate the efficacy of allopurinol as an augmentation agent for the prevention of mania in bipolar disorder patients with currently stable mood. Bipolar disorder is a mental disorder with severe mood swings (mania and depression). Despite the development of medications for mania, they may have significant side effects, high costs and the need for serum level monitoring. These factors adversely affect medication compliance in bipolar patients. One recent study indicated the efficacy of allopurinol in the treatment of bipolar mania. Our hypothesis is that the addition of allopurinol to standard medications for bipolar disorder will decrease the recurrences of manic episodes compared to standard medications.

This study will recruit bipolar disorder patients currently mood stable on a therapeutic dose of an anti-manic medication. Stable mood will be defined as a Young Mania Rating Scale score ≤10 and Hamilton Depression Rating Scale ≤10. Subjects must have a diagnosis of bipolar disorder confirmed by the Mini International Neuropsychiatric Interview. Young Mania Rating Scale and Mini International Neuropsychiatric Interview are common research questionnaires used in bipolar disorder studies. Potential subjects will be identified and approached during an outpatient clinical visit by a member of the research team and identified by their treating physicians and referred to the researchers.

This study involves adding allopurinol to subjects' current bipolar medications. This study will be a open label, naturalistic study. The subject will be examined monthly for manic symptoms for 2 years. Semi-structured interviews and study questionnaires will be administered to subjects at each visit. Monthly Follow-up Study Visits (once per month for 2 years - Months 1-5, 7-11, 13-17, 19-23) may be conducted either in-person or over the phone. All of the questionnaires will be administered by a clinician if the visit is completed over the phone. However, the 6-month interval visits (Months 6, 12, 18, and 24) must be done at the research center.

The primary outcome measure will be the number of manic episodes in the 2 year study period. A manic episode will be defined by a Young Mania Rating Scale score ≥20.

02

Conditions studied

  • Bipolar Disorder
  • Mania
  • Mixed Mania

Keywords

  • Bipolar Disorder
  • Stable Bipolar Disorder
  • Mania
  • Mixed mania
  • Allopurinol
03

In context

Bipolar Disorder

1,683 studies on the registry are indexed under Bipolar Disorder; 266 are open to participants now.

This study's enrollment of 15 is below the median of 64 across 1,279 interventional studies indexed under Bipolar Disorder.

Browse Bipolar Disorder studies →

Lead sponsor

Cedars-Sinai Medical Center is the lead sponsor of 456 studies on the registry; 107 are open to participants now.

Of its 65 completed or terminated interventional studies of FDA-regulated products, 49 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Subjects must be between ages 18 and 70.
  2. Subjects must meet 4th edition criteria for bipolar disorder confirmed by the Mini International Neuropsychiatric Interview.
  3. Subjects must be taking at least one medication for mania at a therapeutic dose for at least 2 weeks.
  4. Subjects must have been diagnosed with bipolar disorder, type 1, for at least 2 years prior to baseline.
  5. Subjects must have adequate response to medications as evidenced by Young Mania Rating Scale score less than or equal to 10 at screening and at baseline.
  6. Subjects must have adequate response to medications as evidenced by Hamilton Depression Rating Scale score less than or equal to 10 at screening and at baseline.
  7. Subjects must have had at least 1 manic episode in the 2 year period prior to entering the study.
  8. Female subjects must be either for at least 1 year, surgically sterile, abstinent or practicing an effective method of if sexually active. Acceptable methods of birth control during this study are regular use of contraceptive pills, intra-uterine devices, barrier methods or abstinence. Female subjects must also have a negative urine pregnancy test at screening, baseline and other time points throughout the study.
  9. Subjects must be able and willing to comply with self-administration of medication or have consistent help/support available.
  10. Subjects must have signed an document indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study.
  11. Subjects must be able and willing to meet or perform study requirements (e.g. answer self-administered questionnaires).
  12. Subjects must be willing to allow study staff to contact subject's regular psychiatrist while the subject is in the study.

Exclusion criteria

Exclusion Criteria:

  1. Subjects who are unable to provide .
  2. Subjects with a serious, unstable medical illness (such as cardiovascular, respiratory, neurologic, hematologic, renal, hepatic, endocrine, immunologic, or other systemic illness), a history of cerebrovascular disease, uncontrolled diabetes mellitus or acquired immunodeficiency syndrome (AIDS). Subjects with chronic illness must be stable and otherwise physically healthy on the basis of a physical examination, medical history, and the results of blood biochemistry, hematology tests and a urinalysis.
  3. Subjects who develop a medical condition during participation which can affect mood stability (i.e. seizure disorder, brain tumors, brain trauma, stroke, multiple sclerosis, etc.)
  4. Subjects who develop substance abuse or dependence during participation in the study.
  5. Subjects taking azathioprine, mercaptopurine, apalcillin, and/or amoxicillin.
  6. Subjects who have been intoxicated with alcohol or drugs within the last 72hrs.
  7. Subjects with a history of severe pre-existing gastrointestinal narrowing or inability to swallow oral study medication whole with the aid of water.
  8. Female subjects who are pregnant or nursing.
  9. Subjects who have previously participated in this study.
  10. Subjects with an anticipated of 6 months or less.
  11. Subjects who have received an experimental drug or used an experimental medical device within 1 month of screening.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    Allopurinol

    Using an open label, naturalistic design, subjects will continue with their current psychiatric medications during the study. Allopurinol will be given at a fixed dose of 300 mg/day for the first week and then 600mg/d for the remainder of the study. Subjects who cannot tolerate the 600mg dose will be given a dose of 300mg/d. Subjects will participate in monthly follow up visits for 24 months. Subjects who develop a substance abuse or substance dependence disorder during the study will be terminated from the study. Also, subjects who develop a medical condition which can affect their mood stability will be terminated from the study.

    Drug: Allopurinol

Interventions

  • Allopurinol: 300-600 mg/day over a 24 month period

    Also known as: Zyloprim, Aloprim

06

What researchers measure

Primary outcomes

  1. Number of Manic Episodes According to the Young Mania Rating Scale

    Young Mania Rating Scale is an 11-item, clinician-administered scale to assess severity of manic symptoms before, during and after treatment. Four items are graded on a min. 0 to max. 8 scale (irritability, speech, thought content and disruptive/aggressive behavior) while the remaining 7 items are graded on a min. 0 to max. 4 scale. A score of 0 indicates behavior is absent and score of 4 or 8 indicates the behavior is present and severe. The change in score between Baseline and the Completion Visit will be reported. Ideally, the two time points will be Baseline and 6 Weeks after Baseline, but if a subject terminates early, the last Young Mania Rating Scale score will be used. The scores from each question are added for a total score ranging from min. 0 to max 60; higher scores indicate greater severity of symptoms. A score of 0-12 indicates the absence of mania or a very mild manic state, a score of 13-20 or higher indicates a mild manic episode, and over 20 indicates a manic state.

    Time frame: 2 Years

Secondary outcomes

  1. Number of Depressive Episodes Per Patient Visit According to the Hamilton Depression Scale

    The Hamilton Depression Rating Scale is a tool used to determine a patient's level of depression before, during, and after treatment. The Hamilton Depression Scale form lists 21 items, but the scoring is based on the first 17 questions. Eight items are scored on a 5-point scale, ranging from 0 (min) = not present to 4 (max) = severe. Nine are scored from 0 (min) to 2 (max). The sum of the scores from the first 17 questions is: 0 (min) to 7 (max) = normal, 8 (min) to 13 (max) = mild depression, 14 (min) to 18 (max) = moderate depression, 19 (min) to 22 (max) = severe depression and ≥ 23=very severe depression. A score of 11 or more indicates a depressive episode in terms of this outcome measure.

    Time frame: 2 years

  2. Number of Psychiatric Hospitalizations

    The number of psychiatric hospitalizations that occur during the study will be compared to the number of hospitalizations that occurred prior to the study.

    Time frame: 2 years

07

Results

Posted Feb 22, 2018

Participant flow

Participant flow — Overall Study
MilestoneAllopurinol
Started8
Completed1
Not completed7
Withdrew: Lost to follow-up3
Withdrew: Withdrawal by subject3
Withdrew: Early term due to site closure1

Outcome measures

PrimaryNumber of Manic Episodes According to the Young Mania Rating Scale

Young Mania Rating Scale is an 11-item, clinician-administered scale to assess severity of manic symptoms before, during and after treatment. Four items are graded on a min. 0 to max. 8 scale (irritability, speech, thought content and disruptive/aggressive behavior) while the remaining 7 items are graded on a min. 0 to max. 4 scale. A score of 0 indicates behavior is absent and score of 4 or 8 indicates the behavior is present and severe. The change in score between Baseline and the Completion Visit will be reported. Ideally, the two time points will be Baseline and 6 Weeks after Baseline, but if a subject terminates early, the last Young Mania Rating Scale score will be used. The scores from each question are added for a total score ranging from min. 0 to max 60; higher scores indicate greater severity of symptoms. A score of 0-12 indicates the absence of mania or a very mild manic state, a score of 13-20 or higher indicates a mild manic episode, and over 20 indicates a manic state.

Time frame:
2 Years
Reported as:
Count of units · patient visits
Number of Manic Episodes According to the Young Mania Rating Scale
patient visitsAllopurinol
Number of Manic Episodes According to the Young Mania Rating Scale3
SecondaryNumber of Depressive Episodes Per Patient Visit According to the Hamilton Depression Scale

The Hamilton Depression Rating Scale is a tool used to determine a patient's level of depression before, during, and after treatment. The Hamilton Depression Scale form lists 21 items, but the scoring is based on the first 17 questions. Eight items are scored on a 5-point scale, ranging from 0 (min) = not present to 4 (max) = severe. Nine are scored from 0 (min) to 2 (max). The sum of the scores from the first 17 questions is: 0 (min) to 7 (max) = normal, 8 (min) to 13 (max) = mild depression, 14 (min) to 18 (max) = moderate depression, 19 (min) to 22 (max) = severe depression and ≥ 23=very severe depression. A score of 11 or more indicates a depressive episode in terms of this outcome measure.

Time frame:
2 years
Reported as:
Count of units · patient visits
Number of Depressive Episodes Per Patient Visit According to the Hamilton Depression Scale
patient visitsAllopurinol
Number of Depressive Episodes Per Patient Visit According to the Hamilton Depression Scale7
SecondaryNumber of Psychiatric Hospitalizations

The number of psychiatric hospitalizations that occur during the study will be compared to the number of hospitalizations that occurred prior to the study.

Time frame:
2 years

No measurements were reported for this outcome.

Adverse events

Collected over 2 years. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Allopurinol0/8 (0%)0/8 (0%)1/8 (12.5%)
Most frequent other events
Most frequent other events
EventAllopurinol
HospitalizationPsychiatric disorders1/8

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Allopurinol
<=18 years0
Between 18 and 65 years8
>=65 years0
Sex: Female, Male
Sex: Female, Male(Participants)Allopurinol
Female3
Male5
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Allopurinol
Hispanic or Latino1
Not Hispanic or Latino0
Unknown or Not Reported7
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Allopurinol
American Indian or Alaska Native0
Asian1
Native Hawaiian or Other Pacific Islander0
Black or African American1
White2
More than one race0
Unknown or Not Reported4
Region of Enrollment
Region of Enrollment(Participants)Allopurinol
United States8
08

Study locations

1 site
  • Cedars-Sinai Medical Center
    Los Angeles, California 90048, United States
09

References and documents

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Aug 2008, a primary completion of Jan 2012 and a completion of Jan 2012. It does not say whether these dates are actual or estimated.

Results were first posted in Feb 2018, 6 years 1 month after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 7, 2008
First posted
Aug 11, 2008
Start
Aug 2008
Primary completionActual
Jan 2012
CompletionActual
Jan 2012
Results first posted
Feb 22, 2018
Last update
Oct 2, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 2, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00732251
Collaborators
West Coast College of Biological Psychiatry Inc
Responsible party
Itai Danovitch (Chairman, Department of Psychiatry, Cedars-Sinai Medical Center) — Principal investigator
First posted
Aug 11, 2008
Start date
Aug 2008
Primary completion
Jan 2012
Completion
Jan 2012
Results posted
Feb 22, 2018
Last update
Oct 2, 2019

Study contacts

Itai Danovitch, MD
study chair · Cedars-Sinai Medical Center

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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