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NCT01331304 · ClinicalTrials.gov registry record · Phase 4

Comparative Effectiveness Study for Bipolar Disorder

A Phase 4 study, sponsored by Massachusetts General Hospital.

Completed
Registry status
Phase 4
Development phase
482
Enrollment target

NCT01331304: Completed Phase 4 study, sponsored by Massachusetts General Hospital.

NCT01331304 is a Phase 4 study that has completed, run by Massachusetts General Hospital. The registered enrollment target is 482 participants, roughly in line with the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

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The verdict

NCT01331304, a Phase 4 study, has completed, sponsored by Massachusetts General Hospital.

COMPLETED
Registry status
Phase 4
Development phase
482 participants
Enrollment target

Study Summary

The purpose of this study is to compare the effectiveness of lithium and quetiapine for the treatment of individuals with bipolar disorder.

Primary Outcome

The CGI-EI integrates benefits and harms and yields a score that can be compared across interventions. It is made up of 2 subscales: therapeutic effects and side effects. Each rating is on a scale from 1 to 4. To combine these two subscales into the CGI-EI we report as our primary outcome, we subtracted the side effects subscale from the therapeutic effects subscale. Thus, the CGI-EI we report ranges the integers from -3 to +3 (i.e. possible scores are -3,-2,-1,0,1,2,3). A score of -3 is the mos

Interventions

  • DRUG Lithium
  • DRUG Quetiapine

Trial Details

FieldValue
Enrollment Target 482 participants
Start Date 2010-09
Est. Completion 2013-09
Phase Phase 4
Massachusetts General Hospital

2,032 total trials

What the finished NCT01331304 record still lists

NCT01331304 is an interventional study that assigns participants to a tested intervention. The registered 482 participants enrollment target is mid-sized for trials with a published cap, roughly in line with the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target.

The record links to 0 conditions, and to 2 interventions - of which Lithium is the first listed.

NCT01331304 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01331304 about?

NCT01331304 is a clinical study titled "Comparative Effectiveness Study for Bipolar Disorder". The purpose of this study is to compare the effectiveness of lithium and quetiapine for the treatment of individuals with bipolar disorder.

What is the current status of trial NCT01331304?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 482 participants. The study started on 2010-09. Estimated completion is 2013-09.

What interventions are being tested in trial NCT01331304?

The interventions under investigation include: Lithium (DRUG), Quetiapine (DRUG).

Who is sponsoring clinical trial NCT01331304?

This trial is sponsored by Massachusetts General Hospital, which has 2,032 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01331304's enrollment target sits among peer trials

482 182nd of 2000 higher than 1,819 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT01331304, the US trial registry maintained by the National Library of Medicine. NCT01331304 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.