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ST Monitoring to Detect Acute Coronary Syndrome Events in Implantable Cardioverter Defibrillator Patients

ST Monitoring to Detect ACS Events in ICD Patients

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01424722
Acronym
AnalyzeST
Enrollment
2258
Registered
2011-08-29
Start date
2011-08-31
Completion date
2017-06-30
Last updated
2021-01-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Artery Disease

Keywords

ICD Indicated patients, documented CAD

Brief summary

This is a prospective, non-randomized, multicenter, pivotal Investigational Device Exemption (IDE) study. The intent of this study is to demonstrate the safety and effectiveness of the ST Monitoring Feature in St Jude Medical ICD systems.

Detailed description

This is a prospective, non-randomized, multicenter, pivotal IDE study. The intent of this study is to demonstrate the safety and effectiveness of the ST Monitoring Feature in the Fortify® ST, Fortify Assura® ST, and Ellipse® ST family of devices, as well as any future St Jude Medical devices with the same ST Monitoring Feature capabilities. Effectiveness of the device will be evaluated by analyzing the sensitivity of the ST Monitoring Feature to detect clinical events. In addition, safety of the ST Monitoring Feature will be evaluated by demonstrating a low percentage of patients with false positive events.

Interventions

DEVICEFortify® ST, Fortify Assura® ST, Ellipse® ST family of devices

Algorithm for detecting ST changes that may be indicative of an acute coronary syndrome.

Sponsors

Abbott Medical Devices
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Eligible patients will meet all of the following: 1. Have an indication for an ICD implantation or pulse generator change 2. Have documented coronary artery disease. Documented coronary artery disease is defined as having at least one of the following present a) evidence of a prior MI on ECG and/or cardiac enzymes, b) prior revascularization (by coronary artery bypass grafting or percutaneous coronary intervention) c) angina and/or ST-T wave abnormalities indicative of ischemia on exercise stress test, nuclear stress test, or echo stress test, or d) coronary artery disease diagnosed by coronary angiography. 3. Willing and able to comply with protocol requirements, including keeping all required visits 4. Willing to participate in the study and able to sign an IRB approved informed consent form 5. Be at least 18 years of age when enrolled in the study

Exclusion criteria

* Patients will be excluded if they meet any of the following: 1. Are pacemaker dependent (defined as a need for ventricular pacing ≥ 20% of the time) 2. Have NYHA Class IV Heart Failure 3. Have persistent or permanent atrial fibrillation 4. Have a known history of intermittent Bundle Branch Block 5. Pregnant or planning a pregnancy during the study participation 6. Have a life expectancy of \< 1 year due to any condition 7. Are currently participating in a clinical investigation that includes an active treatment arm.

Design outcomes

Primary

MeasureTime frame
Number of Patients Who Experience a False Positive ST Detection in 12 Months FU12 months

Countries

United States

Participant flow

Participants by arm

ArmCount
ST Monitoring Feature
Fortify® ST, Fortify Assura® ST, Ellipse® ST family of devices: Algorithm for detecting ST changes that may be indicative of an acute coronary syndrome.
2,258
Total2,258

Withdrawals & dropouts

PeriodReasonFG000
Overall StudySponsor terminated investigation2,258

Baseline characteristics

CharacteristicST Monitoring Feature
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1229 Participants
Age, Categorical
Between 18 and 65 years
1029 Participants
Age, Continuous65.4 years
STANDARD_DEVIATION 10.1
Race (NIH/OMB)
American Indian or Alaska Native
11 Participants
Race (NIH/OMB)
Asian
41 Participants
Race (NIH/OMB)
Black or African American
266 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
7 Participants
Race (NIH/OMB)
Unknown or Not Reported
34 Participants
Race (NIH/OMB)
White
1899 Participants
Region of Enrollment
United States
2258 participants
Sex: Female, Male
Female
424 Participants
Sex: Female, Male
Male
1834 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
270 / 2,258
other
Total, other adverse events
177 / 2,258
serious
Total, serious adverse events
217 / 2,258

Outcome results

Primary

Number of Patients Who Experience a False Positive ST Detection in 12 Months FU

Time frame: 12 months

Population: The analysis population includes the number of patients with Clinical Event Committee adjudicated data related to ACS events.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ST Monitoring FeatureNumber of Patients Who Experience a False Positive ST Detection in 12 Months FU115 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026