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Completed

NCT Number: NCT00785044

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

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.

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Key information

Conditions

Congestive Heart Failure Cardiovascular Diseases Heart Diseases Heart Failure

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

GE Healthcare

Princeton, New Jersey, 08540, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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.

Exclusion criteria

  • The subject withdrew or was withdrawn from MBG311, MBG312, or MBG312C.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.

Treatment and study plan

I-123 mIBG

Drug

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

Primary outcomes

  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

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

    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.

Sponsors and collaborators

Lead sponsor

GE Healthcare

Industry

Registry information

Official study 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

Important dates

Study start
2008
Primary completion
2010
Study completion
2010
First posted
Nov 5, 2008
Registry last updated
Apr 26, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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