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Bipolar DisorderPhase 2NCT00841269

Oral Uridine for Treatment of Bipolar Depression in Adolescents

A Phase 2 study testing Uridine in people with Bipolar Disorder, run by University of Utah 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 the study is to see if the investigational medication uridine reduces depression symptoms in adolescents with bipolar disorder. Uridine is a naturally occurring chemical that is made by the human liver. Read more about this study

Who is it for?
Ages 13 to 18 yearsHealthy volunteers can take part
Conditions the study is for
Bipolar Disorder
What is being tested?
Uridine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteUnited States
Study dates
May 2009to Jun 2013
Phase
Phase 2
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 13 to 18 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Participants must meet DSM-IV-TR (American Psychiatric Association, 2000) criteria for Bipolar Disorder Type I, Type II, or Not Otherwise Specified (NOS) with current mood state depressed for > 2 weeks
  • Participants must be between the age of 13 and 18 years
  • Participants who enter the study on psychotropic medications must be on a regimen that has been stable for > 2 weeks at the time of study entry
  • Participants must be able to give informed consent or assent, and parent(s)/guardian(s) must be able to give informed permission for study participation
  • Participants must be between the ages of 13 and 18 years
  • Participants must not meet DSM-IV-TR diagnostic criteria for a mental disorder or substance abuse
  • Participants must be able to give informed consent or assent and parents/guardians must be able to give informed permission for participation

Who cannot join

  • Adolescents with an unstable co-morbid medical, neurological, or psychiatric disorder
  • Pregnant females, nursing mothers, or females of childbearing potential who are unable or unwilling to practice contraception during the study
  • Participants with high risk of suicidal behaviors, homicidal behaviors, or self-harm
  • Participants who in the opinion of the investigator are unlikely to be able to comply with the study protocol
  • Participants who meet DSM-IV-TR criteria for current substance abuse or substance dependence, with the exception of nicotine abuse or dependence
  • Participants for whom the MRI/MRS scans are contraindicated, such as children with ferromagnetic implants or claustrophobia
Show all 15Show fewer
  • Participants whose mood state is manic
  • Documented or suspected history of mental retardation (IQ<70)
  • Positive urine drug screen for cocaine or amphetamines
  • Known hypersensitivity to uridine
  • Selection of Healthy Volunteers:
  • Clinically significant medical, neurological, psychiatric or substance abuse disorder
  • Pregnant subjects, due to the unknown effects of MRI/MRS scans on a fetus. In addition, women of childbearing potential who are unable or unwilling to practice contraception during the study will be excluded. Female participants who are of child-bearing potential must have a negative urine pregnancy test before each MRI/MRS scan.
  • Participants with a contraindication to MRI/MRS scanning, such as a metallic implant
  • Patients unable to comply with the protocol

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Utah School of Medicine

    Salt Lake City, Utah, 84108

Other trials in United States

About this study

Official title: Oral Administration of Uridine for Treatment of Bipolar Depression in Adolescents: A Magnetic Resonance Spectroscopy Study

The purpose of the study is to see if the investigational medication uridine reduces depression symptoms in adolescents with bipolar disorder. Uridine is a naturally occurring chemical that is made by the human liver. Uridine is part of a family of compounds called pyrimidines, and is normally involved in many of the body's processes such as the use of energy by cells. Uridine is considered experimental, because it has not been approved by the U.S. Food and Drug Administration (FDA) to treat bipolar depression in adolescents. The study will use standard methods of assessing adolescent's mood, such as rating scales and questionnaires. In addition, the study will use Magnetic Resonance Imaging Spectroscopy (MRI/MRS) brain scans to see if levels of certain chemicals in the brain change when adolescents are treated with uridine. These scans use a magnet to create images of the brain, and do not expose patients to radiation.

Read the detailed description

This is an open-label study of the investigational drug uridine in the treatment of adolescents with depression with bipolar disorder. Uridine has shown positive results in a Phase II study of bipolar disorder in adults (http://clinicaltrials.gov/ct2/show/NCT00322764). This study will enroll 30 depressed adolescent participants who meet DSM-IV-TR criteria for bipolar disorder type I, type II or bipolar disorder not otherwise specified. Participants who are currently taking psychotropic medication(s) will continue on their current regimen, with uridine added as adjunctive therapy. Participants who are untreated will be informed of the alternatives to study participation. This will include informing the parent(s) or guardian(s) that Lithium, Risperdal and Abilify are FDA-approved treatments for adolescent bipolar disorder that would be available to their child in community care.

The study has three objectives: 1) To use Magnetic Resonance Spectroscopy (MRS) brain imaging to measure levels of beta-nucleoside triphosphate (b-NTP) in the anterior cingulate cortex of 30 adolescents with bipolar disorder, before-and-after 6 weeks of treatment with the investigational drug uridine; 2) To measure the antidepressant response to uridine in the 30 participants with the Children's Depression Rating Scale (CDRS); and 3) To acquire structural Magnetic Resonance Imaging (MRI) data in the 30 participants with bipolar disorder and the 30 healthy controls, to establish regionally-specific structure/neurochemical relationships.

Adolescent participants with bipolar disorder will be treated with uridine 500mg twice daily for six weeks. The primary clinical outcome measure is the Children's Depression Rating Scale (CDRS), with response defined as a 30% reduction in CDRS score. In addition to this standardized clinical assessment, participants will undergo magnetic resonance imaging and magnetic resonance spectroscopy (MRI/MRS) brain scans at baseline, and after six weeks of treatment with uridine. This novel approach is designed to explore objectively measurable biomarkers of illness and treatment response in pediatric bipolar disorder. The investigators hypothesize that participants whose depression responds to uridine will demonstrate an increased concentration of beta-nucleoside triphosphate (b-NTP) in the anterior cingulate cortex. This would support the hypothesis that depressive states are associated with abnormalities in brain energy metabolism.

As a neuroimaging comparison group for the participants with bipolar disorder, 30 healthy adolescent controls with no history of psychiatric illness will be recruited for MRI/MRS scanning only. The investigators hypothesize that controls will have higher levels of b-NTP in the anterior cingulate cortex than participants with depression associated with bipolar disorder, further supporting a connection between brain bioenergetics and depression.

Being tested
Uridine
Keywords
Bipolar Manic Depression
Medical subject headings
Bipolar Disorder

What participants receive

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

  • UridineDrug

    Uridine 500 mg by mouth twice per day for 6 weeks

Study groups in NCT00841269
Study groupRoleWhat they receive
UridineExperimentalUridine 500 mg by mouth twice daily for 6 weeks
Receives: Drug: Uridine
Healthy ComparisonNo interventionHealthy comparison participants were seen for baseline and week 6 MRI scans. No treatment was administered to participants enrolled as healthy comparisons.

What is being measured

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

  1. Mean Scores in Children's Depression Rating Scale (CDRS-R), Assessed Before and After 6 Week Uridine Treatment

    The CDRS-R is a 17-item scale, with items rated for severity on a 5 point scale for 3 items and on a 7 point scale for 14 items (possible total score from 17 to 113). Ratings are completed by a clinician via interviews with the child or parent. Scores ≥40 are indicative of depression, whereas scores ≤28 is often used to define remission.

    Measured: 6 weeks

  2. The Primary Neuroimaging Outcome Will be Changes in Beta-NTP to TP (Total Phosphorus) Ratio in the Anterior Cingulate.

    Measured: 6 weeks

Secondary outcomes (1)
  1. A Secondary Outcome Measure Includes a Change in Young Mania Rating Scale (YMRS) Score

    The Young Mania Rating Scale (YMRS) is an 11-item rating scale that evaluates manic symptoms. Total scores range from 0-60, with higher scores indicating more manic symptoms endorsed by research participants.

    Measured: 6 weeks

Timeline

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

  1. First posted11 Feb 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionJun 2013
  4. Study completionJun 2013

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 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00841269
Sponsor's protocol ID
28455
Other IDs
5R01MH058681-06
Status last verified
Feb 2018
First submitted
9 Feb 2009
Last updated
26 Mar 2018
Data monitoring committee
Yes

Publications

  • Kondo DG, Sung YH, Hellem TL, Delmastro KK, Jeong EK, Kim N, Shi X, Renshaw PF. Open-label uridine for treatment of depressed adolescents with bipolar disorder. J Child Adolesc Psychopharmacol. 2011 Apr;21(2):171-5. doi: 10.1089/cap.2010.0054. Epub 2011 Apr 12.

    PubMed 21486171

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Uridine in people with Bipolar Disorder, run by University of Utah 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 7 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 26 Mar 2018. 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. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 8 Jan 2015). 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?

Mean Scores in Children's Depression Rating Scale (CDRS-R), Assessed Before and After 6 Week Uridine Treatment (time frame: 6 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 NCT00841269, 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 26 Mar 2018.

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