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Inappropriate Shock Reduction wIth PARAD+ Rhythm DiScrimination

Inappropriate Shock Reduction wIth PARAD+ Rhythm DiScrimination

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01410552
Acronym
ISIS-ICD
Enrollment
1013
Registered
2011-08-05
Start date
2011-10-31
Completion date
2016-02-29
Last updated
2019-03-22

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

Conditions

Tachycardia

Keywords

Primary prevention, Secondary prevention

Brief summary

ISIS- ICD study has been designed to evaluate the impact of PARAD+ algorithm on inappropriate shocks, in a general population implanted for primary or secondary prevention with a dual or tri chamber device at one year follow-up

Detailed description

The primary endpoint is to demonstrate that 95% of patients implanted with PARAD+ algorithm are free from inapproporiate shock compared to 92.5% in general ICD population.

Interventions

DEVICEPARADYM DR model 8550; PARADYM CRT model 8750; PARADYM RF DR model 9550; PARADYM RF CRT model 9750; PARADYM RF CRT SonR model 9770

PARADYM ICD and CRT-d with PARAD+ algorithm available

Sponsors

MicroPort CRM
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

ICD device

Eligibility

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

Inclusion criteria

1. Patient eligible for implantation (according to current accepted guidelines, or scheduled for implant (primo-implant, replacement, upgrade) with a Paradym/Paradym RF (CRT-D or DR-ICD) within the next 30 days, or has already been implanted within the last 30 days 2. Patient in sinus rhythm, or patients with paroxysmal atrial tachyarrhythmia or patients with persistent atrial tachyarrhythmia in whom a cardioversion is planned within three months

Exclusion criteria

1. Any contraindication for ICD therapy 2. Atrial lead not implanted 3. Patient with permanent atrial tachyarrhythmia 4. Patients implanted with a ventricular assist device (VAD)

Design outcomes

Primary

MeasureTime frameDescription
Patients With Inappropriate Shock(s)552 daysPercentage of patients presenting with inappropriate shock(s)

Secondary

MeasureTime frameDescription
Shock(s) Appropriately Delivered552 daysPercentage of shocks appropriately delivered

Countries

France, Germany, Italy, Japan, Spain, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Single Arm
ICD or CRT-D with PARAD+
993
Total993

Baseline characteristics

CharacteristicSingle Arm
Age, Continuous68.0 years
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
204 Participants
Sex: Female, Male
Male
789 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
70 / 1,013
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
282 / 1,013

Outcome results

Primary

Patients With Inappropriate Shock(s)

Percentage of patients presenting with inappropriate shock(s)

Time frame: 552 days

ArmMeasureValue (NUMBER)
Single ArmPatients With Inappropriate Shock(s)1.4 Percentage of pts with inap shocks
Secondary

Shock(s) Appropriately Delivered

Percentage of shocks appropriately delivered

Time frame: 552 days

ArmMeasureValue (NUMBER)
Single ArmShock(s) Appropriately Delivered73.7 Percentage of appropriate shocks

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