Meta-Iodobenzylguanidine (123I-mIBG) Scintigraphy Imaging in Patients With Heart Failure and Control Subjects Without Cardiovascular Disease

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00126438
Recruitment Status : Completed
First Posted : August 4, 2005
Results First Posted : May 5, 2017
Last Update Posted : March 14, 2018
Information provided by (Responsible Party):
GE Healthcare

August 3, 2005
August 4, 2005
June 30, 2015
May 5, 2017
March 14, 2018
July 2005
July 2008   (Final data collection date for primary outcome measure)
Relationship Between the Occurrence of Adverse Cardiac Event and 123I-mIBG Uptake on Planar Scintigraphy Categorized as High or Low Heart to Mediastinum (H/M) Ratio [ Time Frame: Approximately 24 months from the date of administration of 123I-mIBG ]
H/M ratio for 123I-mIBG uptake 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. Assessments were done by 3 independent readers. H/M ratios were categorized as 'Low' and 'High' based on being <1.6 or ≥1.6 respectively. The efficacy of 123I-mIBG was based on the prognostic value of the imaging data collected relative to time to adverse cardiac events. Data analysis to assess the relative hazard of an adverse cardiac event was performed only on HF participants categorized into 2 groups with H/M <1.6 and H/M ≥1.6 using a Cox proportional hazards model.
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Complete list of historical versions of study NCT00126438 on Archive Site
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Meta-Iodobenzylguanidine (123I-mIBG) Scintigraphy Imaging in Patients With Heart Failure and Control Subjects Without Cardiovascular Disease
An Open-Label, Multicenter, Phase 3 Study Evaluating the Prognostic Usefulness of I-123 mIBG Scintigraphy for Identifying Subjects With Heart Failure Who Will Experience an Adverse Cardiac Event
The study is designed to study the utility of 123I-mIBG as a diagnostic imaging agent to predict cardiac outcome in subjects with heart failure and in comparison to subjects without cardiovascular disease.
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Phase 3
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Heart Failure, Congestive
Drug: 123I-mIBG (meta-iodobenzylguanidine)
Single Dose
Other Names:
  • MIBG
  • Iobenguane
Experimental: 123I-mIBG (meta-iodobenzylguanidine)
Single dose
Intervention: Drug: 123I-mIBG (meta-iodobenzylguanidine)

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
September 2008
July 2008   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Study subjects must be adults with an established diagnosis of heart failure (New York Heart Association Class II or III) and reduced left ventricular ejection fraction (LVEF) (≤ 35%) or be healthy volunteers without heart disease.

Exclusion Criteria:

  • Healthy volunteers were not eligible if they had a history of diabetes mellitus, signs/symptoms of neurological disease (e.g., Parkinson's Disease, multiple system atrophy, Parkinsonian syndromes), or other diseases known to affect the sympathetic nervous system.
  • Subjects with New York Heart Association Class I or IV heart failure were not eligible.
  • Subjects were excluded if they had previously received 123I-mIBG or 131I-mIBG or participated in a clinical study involving investigational medicinal product or devices within 30 days.
  • Subjects that had a pacemaker or had received defibrillation, anti-tachycardia pacing or cardioversion to treat a previous arrhythmic event or had an ICD inserted within 30 days before study entry are not eligible.
Sexes Eligible for Study: All
18 Years and older   (Adult, Older Adult)
Contact information is only displayed when the study is recruiting subjects
United States
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GE Healthcare
GE Healthcare
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Study Director: John Strohmeyer GE Healthcare
GE Healthcare
February 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP