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Congestive Heart FailureNCT00785044

Study Dosed With (123I-mIBG) for Identifying Subjects With Heart Failure Who Will Experience an Adverse Cardiac Event

An observational study of Congestive Heart Failure, run by GE Healthcare 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 study was designed to study the utility of meta-iodobenzylguanidine (123I-mIBG) imaging to identify those participants with heart failure who would experience an adverse cardiac event during 24 months of follow-up from the administration date of 123I-mIBG in previous studies MBG311 or MBG312. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Congestive Heart Failure
What is being tested?
I-123 mIBG
How many people
471 participants
Where
1 siteUnited States
Study dates
May 2008to Feb 2010
Phase
Observational
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Heart Failure Participants who participated in: MBG311 (NCT00126425) and MBG312/312C (NCT00126438).

Who may be able to join

  • The subject was a Heart Failure subject who signed informed consent for MBG311, MBG312, or MBG312C.
  • The subject was administered 123I-mIBG in MBG311, MBG312, or MBG312C.
  • The subject completed the late planar imaging assessments (at a minimum) required by the protocols for MBG311, MBG312, or MBG312C.
  • The subject agreed to allow the investigator access to medical records, including those relating to subject death should this occur.

Who cannot join

  • The subject withdrew or was withdrawn from MBG311, MBG312, or MBG312C.
  • The subject was considered lost-to-follow-up (6 months without contact) in MBG311, MBG312, or MBG312C.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • GE Healthcare

    Princeton, New Jersey, 08540

Other trials in United States

About this study

Official title: An Open-label, Multicentre, Phase 3 Study to Demonstrate the Prognostic Usefulness of 123I-mIBG Scintigraphy for Identifying Subjects With Heart Failure Who Will Experience an Adverse Cardiac Event During 24 Months Followup

The study was designed to study the utility of meta-iodobenzylguanidine (123I-mIBG) imaging to identify those participants with heart failure who would experience an adverse cardiac event during 24 months of follow-up from the administration date of 123I-mIBG in previous studies MBG311 or MBG312.

Being tested
I-123 mIBG
Keywords
Heart Failure, MIBG, 123I-mIBG
Medical subject headings
Heart Failure

What participants receive

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

  • I-123 mIBGDrug

    This was an observational study. Participants were previously dosed in separate study.

Study groups in NCT00785044
Study groupRoleWhat they receive
GroupNo participants received any drug administration. No intervention conducted.
Receives: Drug: I-123 mIBG

What is being measured

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

  1. Numerical Heart to Mediastinum (H/M) Ratio at 3 Hours 50 Minutes Post-administration on Planar 123I-mIBG Imaging by Adverse Cardiac Events (ACEs) Status

    The numerical value of 123 I-mIBG uptake (H/M ratio) at 3 hours 50 minutes post administration was calculated by dividing the counts/pixel in the total myocardium region of interest (ROI) by the counts/pixel in the 7x7 pixel mediastinal ROI. Receiver operator characteristic curves (ROC) constructed on the basis of sensitivity and specificity to identify ACEs across all H/M values were used to calculate the area under the ROC curve (AUC). The AUC was used to test for statistical significance of the prognostic usefulness of the H/M ratio. In the present MBG313 study, additional efficacy data is provided for 471 participants and new data from MBG313 were combined with data collected in MBG311 and MBG312 for efficacy analysis.

    Measured: From the date of administration of 123I-mIBG in studies MBG-311 or MBG-312 up to 24 months

Timeline

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

  1. First posted5 Nov 2008 (estimated)
  2. Study startMay 2008
  3. Primary completionJan 2010
  4. Study completionFeb 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Prospective
Enrolment
471 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00785044
Sponsor's protocol ID
MBG313
Status last verified
Apr 2017
First submitted
4 Nov 2008
Last updated
26 Apr 2017
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Congestive Heart Failure, run by GE Healthcare 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 4 inclusion and 2 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 Apr 2017. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Apr 2017). 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?

Numerical Heart to Mediastinum (H/M) Ratio at 3 Hours 50 Minutes Post-administration on Planar 123I-mIBG Imaging by Adverse Cardiac Events (ACEs) Status (time frame: From the date of administration of 123I-mIBG in studies MBG-311 or MBG-312 up to 24 months). 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 26 Apr 2017.

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