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Bipolar DepressionPhase 2NCT00322764

Phase II Study to Assess RG2417 in the Treatment of Bipolar I Depression

A Phase 2 study testing Uridine in people with Bipolar Depression, run by Repligen Corporation at 11 sites 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 purpose of this study is to determine the safety and efficacy of oral RG2417 (Uridine) when administered to patients with Bipolar I depression twice daily for six weeks. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Bipolar Depression
What is being tested?
Uridine
How many people
80 participants
Where
11 sitesUnited States
Study dates
Mar 2006to not given
Phase
Phase 2
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 65 years
  • All sexes
  • Adult, Older adult

Who may be able to join

  • DSM-IV-TR diagnosis of Bipolar I Depression
  • 18 to 65 years of age, inclusive
  • Depressive phase, as measured by MADRS greater than or equal to 20 at Screening and Day1
  • Duration of current depressive episode of at least four weeks by Day 1
  • Competent to give informed consent

Who cannot join

  • Manic/hypomanic/mixed episode as determined by the MINI at Screening and/or a Young Mania Rating Scale (YMRS) score of > 12 at Screening and/or Day 1
  • Dementia or any current Axis I diagnosis (excluding bipolar I) requiring pharmacological treatments
  • A history of alcohol or substance dependence within six months of Day 1, or a history of alcohol or substance abuse within three months of Day 1
  • Urine drug screen positive for amphetamines, cocaine metabolites, opiates and/or phencyclindine (PCP)
  • An Axis II diagnosis that is likely to interfere with protocol compliance
  • Initiation of or increase in psychotherapy within 4 weeks of Screening
Show all 18Show fewer
  • Psychotropic medication (excluding fluoxetine) within 24 hours of initiation of study drug on Day 1; fluoxetine within 2 weeks of initiation of study drug on Day 1
  • Serious suicidal or homicidal risk as determined by the investigator and/or a score of > 5 on the suicide item #10 of the MADRS at Screening and/or Day 1
  • History of sensitivity to any of the ingredients in the study drug
  • Clinically significant abnormality in any screening laboratory results
  • Clinically significant organic disease, including cardiovascular, endocrine, hepatic, pulmonary, neurologic, or renal disease, or any other medical condition, serious intercurrent illness, or extenuating circumstances that, in the opinion of the investigator, would interfere with the performance or interpretability of, or put the patient at risk from, the study procedures
  • Women who are pregnant, breastfeeding, or refuse to use adequate birth control
  • Current seizure disorder
  • Participation in an investigational drug study within twenty-eight days of Day 1
  • Current psychotic episode
  • Clozaril use and/or electroconvulsive therapy within six months of Day 1
  • Failure of three or more adequate trials of standard therapies for depression during the current episode
  • Current episode of depression is longer than one year

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United States11 sites
  • Future Search Trials of Austin

    Austin, Texas, 78756

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • University of Cincinnati

    Cincinnati, Ohio, 45267

  • Cleveland Clinic Foundation

    Cleveland, Ohio, 44195

  • Future Search Trials of Dallas

    Dallas, Texas, 75231

  • Indiana University-Purdue University Indianapolis

    Indianapolis, Indiana, 46202

  • Medical & Behavioral Health Research, PC

    New York, New York, 10023

  • Marc Hertzman, MD, PC

    Rockville, Maryland, 20852

  • University of Texas Health Science Center at San Antonio

    San Antonio, Texas, 78229

  • Carman Research

    Smyrna, Georgia, 30080

  • Stanford University

    Stanford, California, 94305

Other trials in United States

About this study

Official title: Dose-Escalating, Phase II Study to Assess the Safety and Tolerability of RG2417 in the Treatment of Bipolar I Depression

The primary purpose of this study is to determine the safety and efficacy of oral RG2417 (Uridine) when administered to patients with Bipolar I depression twice daily for six weeks.

Being tested
Uridine
Keywords
manic depression, bipolar disorder, depression, uridine, RG2417
Medical subject headings
Bipolar Disorder, Depression

What participants receive

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

  • UridineDrug

What is being measured

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

  1. Improvement of MADRS and CGI BP C for RG2417 treatment in comparison to placebo

Timeline

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

  1. First posted8 May 2006 (estimated)
  2. Study startMar 2006

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00322764
Sponsor's protocol ID
RG2417-01
Status last verified
Nov 2007
First submitted
4 May 2006
Last updated
9 Nov 2007
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Uridine in people with Bipolar Depression, run by Repligen Corporation at 11 sites 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 18 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 Nov 2007. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites 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?

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?

Improvement of MADRS and CGI BP C for RG2417 treatment in comparison to placebo. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 Nov 2007.

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