Trial Outcomes & Findings for The EASYTRAK EPI Clinical Investigation (NCT NCT00158925)

NCT ID: NCT00158925

Last Updated: 2017-05-31

Results Overview

The expected mean pacing threshold is 1.9V at 0.5 ms pulse width.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

100 participants

Primary outcome timeframe

3 months

Results posted on

2017-05-31

Participant Flow

Participant milestones

Participant milestones
Measure
EASYTRAK EPI Implant Group
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Overall Study
STARTED
96
Overall Study
COMPLETED
84
Overall Study
NOT COMPLETED
12

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

The EASYTRAK EPI Clinical Investigation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
EASYTRAK EPI Lead
n=96 Participants
Subjects in this arm will be implanted or attempted with the EASYTRAK EPI lead. EASYTRAK EPI lead: EASYTRAK EPI lead
Age, Continuous
68.1 years
STANDARD_DEVIATION 12.6 • n=5 Participants
Sex: Female, Male
Female
22 Participants
n=5 Participants
Sex: Female, Male
Male
74 Participants
n=5 Participants
Region of Enrollment
United States
88 Participants
n=5 Participants
Region of Enrollment
Canada
1 Participants
n=5 Participants
Region of Enrollment
Sweden
7 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 3 months

Population: Although 96 subjects were implanted/attempted, for 80 subjects still in follow up at the end of the 3M fu periodm the mean pacing threshold was obtained.

The expected mean pacing threshold is 1.9V at 0.5 ms pulse width.

Outcome measures

Outcome measures
Measure
EASYTRAK EPI Implant Group
n=80 Participants
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Chronic Pacing Thresholds at 3 Months
0.9 V
Standard Deviation 0.5

PRIMARY outcome

Timeframe: 3 months

Population: Although 96 subjects were implanted/attempted, for 80 subjects still in follow up at the end of the 3M fu period, the mean impedance was measured.

The expected mean impedance is 500 Ohms.

Outcome measures

Outcome measures
Measure
EASYTRAK EPI Implant Group
n=80 Participants
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Chronic Pacing Impedances at 3 Months
500 Ohms
Standard Deviation 137

PRIMARY outcome

Timeframe: 3 months

Population: Although 96 subjects were implanted/attempted, for 67 subjects still in follow up at the end of the 3M fu period, chronic sensing amplitude was measured.

The expected mean is 10mV.

Outcome measures

Outcome measures
Measure
EASYTRAK EPI Implant Group
n=67 Participants
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Chronic Sensing Amplitudes at 3 Months
15.8 mV
Standard Deviation 7.2

PRIMARY outcome

Timeframe: 3 months

The estimated target value for this endpoint is 80%.

Outcome measures

Outcome measures
Measure
EASYTRAK EPI Implant Group
n=96 Participants
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Lead-related Complication-free Rate at 3 Months
97.9 % of complication free-rate
Interval 95.5 to 100.0

SECONDARY outcome

Timeframe: Implant

Population: Although 96 subjects were implanted/attempted, lead implant time was only collected for 69 subjects.

The estimated target value for average implant time is 30 minutes. Unit of measure will be the time period needed for the implant.

Outcome measures

Outcome measures
Measure
EASYTRAK EPI Implant Group
n=69 Participants
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Lead Implant Time
1.47 h.min
Standard Deviation 1.05

Adverse Events

EASYTRAK EPI Implant Group

Serious events: 55 serious events
Other events: 49 other events
Deaths: 15 deaths

Serious adverse events

Serious adverse events
Measure
EASYTRAK EPI Implant Group
n=96 participants at risk
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
Cardiac disorders
Unable to capture-LV
2.1%
2/96 • Number of events 2
Cardiac disorders
Impedance>2000 Ohms LV lead
1.0%
1/96 • Number of events 1
Cardiac disorders
Dislodgment-no reported signs-LV
1.0%
1/96 • Number of events 1
Cardiac disorders
Dislodgment-multiple signs-LV
1.0%
1/96 • Number of events 1
Cardiac disorders
Dislodgment-Unable to capture-LV
3.1%
3/96 • Number of events 3
Cardiac disorders
Extracardiac stimulation-RV
1.0%
1/96 • Number of events 1
Infections and infestations
Infection (>30 days post implant)
2.1%
2/96 • Number of events 2
Infections and infestations
Systemic infection
1.0%
1/96 • Number of events 1
Renal and urinary disorders
Post-up urinary retention
2.1%
2/96 • Number of events 2
Endocrine disorders
Elevated blood glucose
1.0%
1/96 • Number of events 1
Vascular disorders
Hemorrhage-procedural related
1.0%
1/96 • Number of events 1
Cardiac disorders
Migration
1.0%
1/96 • Number of events 1
Vascular disorders
Thromboembolic events
3.1%
3/96 • Number of events 4
Surgical and medical procedures
Dehiscence of incision over PG
1.0%
1/96 • Number of events 1
Vascular disorders
Vasovagal symptoms
1.0%
1/96 • Number of events 1
Infections and infestations
Post-surgical infection (<30 days post-implant)
3.1%
3/96 • Number of events 3
Respiratory, thoracic and mediastinal disorders
Pneumothorax-procedure
1.0%
1/96 • Number of events 1
Skin and subcutaneous tissue disorders
Hematoma-pocket
1.0%
1/96 • Number of events 1
Cardiac disorders
Atrial fibrillation
7.3%
7/96 • Number of events 7
Respiratory, thoracic and mediastinal disorders
Pleural effusion
7.3%
7/96 • Number of events 8
Blood and lymphatic system disorders
Hypotension
4.2%
4/96 • Number of events 4
Cardiac disorders
Cardiogenic shock
1.0%
1/96 • Number of events 1
Cardiac disorders
Inadvertent VT/VF
1.0%
1/96 • Number of events 1
Cardiac disorders
Bradycardia
1.0%
1/96 • Number of events 1
General disorders
General adverse reaction
8.3%
8/96 • Number of events 12
Respiratory, thoracic and mediastinal disorders
Respiratory failure
2.1%
2/96 • Number of events 2
Renal and urinary disorders
Renal failure
2.1%
2/96 • Number of events 3
Skin and subcutaneous tissue disorders
Post-surgical wound-discomfort
4.2%
4/96 • Number of events 4
Nervous system disorders
Phrenic nerve paralysis
1.0%
1/96 • Number of events 1
Cardiac disorders
Low cardiac output
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Coagulopathy
1.0%
1/96 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pleuritic chest pain
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Peripheral vascular disease
1.0%
1/96 • Number of events 1
Cardiac disorders
Multiple heart failure symptoms
7.3%
7/96 • Number of events 10
Gastrointestinal disorders
Gastrointestinal
6.2%
6/96 • Number of events 6
Cardiac disorders
Dyspnea
3.1%
3/96 • Number of events 3
Cardiac disorders
Heart failure symptoms-unspecified
4.2%
4/96 • Number of events 5
General disorders
Death
2.1%
2/96 • Number of events 2
Respiratory, thoracic and mediastinal disorders
Atelactasis
1.0%
1/96 • Number of events 1
Cardiac disorders
Pericardial effusion
1.0%
1/96 • Number of events 1
Cardiac disorders
Impedance > 2000 Ohms-RV lead
1.0%
1/96 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Carcinoma
2.1%
2/96 • Number of events 2
Metabolism and nutrition disorders
Weight gain
2.1%
2/96 • Number of events 2
Cardiac disorders
Unable to capture- non RA lead related
1.0%
1/96 • Number of events 1
Cardiac disorders
Syncope
1.0%
1/96 • Number of events 2
Cardiac disorders
Ventricular tachycardia
4.2%
4/96 • Number of events 5
Respiratory, thoracic and mediastinal disorders
Pneumonia
1.0%
1/96 • Number of events 1
Cardiac disorders
Myocardial infarction
1.0%
1/96 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pulmonary edema
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Hematological
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Peripheral edema
3.1%
3/96 • Number of events 3
Cardiac disorders
Cardiac arrest
3.1%
3/96 • Number of events 3
Renal and urinary disorders
Urosepsis
2.1%
2/96 • Number of events 2
Skin and subcutaneous tissue disorders
Integumentary
1.0%
1/96 • Number of events 1
Cardiac disorders
Chest pain-ischemic
1.0%
1/96 • Number of events 1
Musculoskeletal and connective tissue disorders
Physical trauma
2.1%
2/96 • Number of events 2
Cardiac disorders
Dizziness
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Abnormal lab values
1.0%
1/96 • Number of events 1
Nervous system disorders
Cerebrovascular accident
1.0%
1/96 • Number of events 2
Cardiac disorders
Ventricular fibrillation
1.0%
1/96 • Number of events 1
Cardiac disorders
Multi-system failure
3.1%
3/96 • Number of events 3
Endocrine disorders
Endocrine
2.1%
2/96 • Number of events 2
Cardiac disorders
Atrial flutter
2.1%
2/96 • Number of events 3
Surgical and medical procedures
Tooth extraction
1.0%
1/96 • Number of events 2
Cardiac disorders
Aortic stenosis
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Thrombus
1.0%
1/96 • Number of events 1
Blood and lymphatic system disorders
Distal thromboemboli
1.0%
1/96 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pulmonary symtpoms
3.1%
3/96 • Number of events 4

Other adverse events

Other adverse events
Measure
EASYTRAK EPI Implant Group
n=96 participants at risk
This is a single arm study, all study subjects are to be implanted in 1 arm: the EASYTRAK EPI Implant Group.
General disorders
General adverse event
11.5%
11/96 • Number of events 14
Cardiac disorders
Atrial fibrillation
10.4%
10/96 • Number of events 12
Cardiac disorders
Extracardiac stimulation-LV lead
6.2%
6/96 • Number of events 8
Blood and lymphatic system disorders
Hypotension
5.2%
5/96 • Number of events 5
Cardiac disorders
Inappropriate tachy therapy
5.2%
5/96 • Number of events 5
Skin and subcutaneous tissue disorders
Post-surgical wound discomfort
6.2%
6/96 • Number of events 8
Respiratory, thoracic and mediastinal disorders
Pulmonary adverse events
6.2%
6/96 • Number of events 10

Additional Information

Elke Sommerijns

Boston Scientific

Phone: +32 479 76 71 56

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: OTHER