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Crome/Cobalt Respiration Study

Crome/Cobalt Respiration Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06089694
Enrollment
61
Registered
2023-10-18
Start date
2023-11-21
Completion date
2024-06-12
Last updated
2026-07-21

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

Conditions

Heart Failure

Brief summary

The goal of this study is to compare measured respiration rates in various subject scenarios and use conditions between capnography and the Crome and Cobalt ICD and CRT-D MRI SureScan devices (derived using a Holter recorder).

Detailed description

This study will enroll subjects who have already received a Medtronic Crome or Cobalt ICD or CRT-D MRI SureScan device and who meet all of the inclusion criteria and none of the exclusion criteria. Subjects will be asked to complete various breathing/exercise activities while connected to a capnography monitor and a Holter recorder and respiration rates from both devices will be compared for accuracy, with the capnography monitor being the source of truth.

Interventions

DEVICEEnabling Sensor Research Holter Mode feature

The Sensor Research Holter Mode feature within the Crome and Cobalt ICD and CRT-D devices will be enabled for a short period of time at the In-clinic Testing Visit to allow for desired data collection.

Sponsors

Medtronic Cardiac Rhythm and Heart Failure
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

1. Subject has an active CromeTM or CobaltTM ICD or CRT-D MRI SureScanTM system which has been implanted for at least 30 days and which has not yet reached the Recommended Replacement Time (RRT) 2. Subject is implanted with one of the following models of a true bipolar right ventricular lead manufactured by Medtronic: * Model 6946M * Model 6947 * Model 6947M * Model 6935 * Model 6935M 3. Subject is ≥ 18 years of age 4. Subject (or subject's legally authorized representative) is willing and able to provide written informed consent 5. Subject is willing and able to comply with study procedures

Exclusion criteria

1. Subject has existing condition that necessitates the use of supplemental oxygen 2. Subject has active acute respiratory infection or respiratory disorder that may affect ability to perform breathing or exercise activities, as assessed by the investigator 3. Any concomitant condition that might endanger the subject through participation in the study or interfere with study procedures, as assessed by the investigator 4. Subject has an active or suspected lead integrity issue, in the opinion of the investigator 5. Subject is enrolled in another study that could confound the results of this study 6. Subject has NYHA Class IV heart failure

Design outcomes

Primary

MeasureTime frameDescription
Daily Capnography Respiration RateDuring In-clinic Testing Visit, an average of 2 hoursDaily respiration rates will be calculated using a series of paired device-derived respiration rates and capnography waveform-derived respiration rates, where the capnography respiration rate will be the source of truth. The differences in these daily respiration rates will be evaluated to determine whether the daily device-derived respiration rate accuracy is acceptable (i.e., consistently within +/- 3 breaths per minute of the true respiration rate).
Daily Device-derived Respiration RateDuring In-clinic Testing Visit, an average of 2 hoursDaily respiration rate determined by the Crome and Cobalt ICD and CRT-D devices.
Difference in Respiration RateDuring In-clinic Testing Visit, an average of 2 hoursDifference between the daily respiration rate determined using capnography and the daily respiration rate determined by the Crome and Cobalt ICD and CRT-D devices.

Countries

United States

Baseline characteristics

Characteristic
Age, Continuous67.0 years
STANDARD_DEVIATION 11.7
Left Ventricular Ejection Fraction ( LVEF)42.15 percentage of ejection fraction
STANDARD_DEVIATION 13.63
Left ventricular end diastolic diameter48.3 mm
STANDARD_DEVIATION 12.76
LV wall thickness10.26 mm
STANDARD_DEVIATION 1.98
New York Heart Association Classification
Class I
25 Participants
New York Heart Association Classification
Class II
29 Participants
New York Heart Association Classification
Class III
0 Participants
New York Heart Association Classification
Class IV
0 Participants
No.of participants with heart failure hospitalizations with intravenous HF therapy/ultrafiltration
0
7 participants with hospitalization
No.of participants with heart failure hospitalizations with intravenous HF therapy/ultrafiltration
1
54 participants with hospitalization
No.of participants with heart failure hospitalizations with intravenous HF therapy/ultrafiltration
2
0 participants with hospitalization
No.of participants with heart failure hospitalizations with intravenous HF therapy/ultrafiltration
3
0 participants with hospitalization
No.of participants with heart failure hospitalizations with intravenous HF therapy/ultrafiltration
>3
0 participants with hospitalization
Number of Participants with Heart Failure
No
7 Participants
Number of Participants with Heart Failure
Yes
54 Participants
Number of participants with heart failure hospitalization w/o heart failure therapy/ultrafiltration
0
7 participants with hospitalization
Number of participants with heart failure hospitalization w/o heart failure therapy/ultrafiltration
1
54 participants with hospitalization
Number of participants with heart failure hospitalization w/o heart failure therapy/ultrafiltration
2
0 participants with hospitalization
Number of participants with heart failure hospitalization w/o heart failure therapy/ultrafiltration
3
0 participants with hospitalization
Number of participants with heart failure hospitalization w/o heart failure therapy/ultrafiltration
>3
0 participants with hospitalization
# participants with events with intravenous HF therapy/ultrafiltration, no hospitalization
0
54 participants with events
# participants with events with intravenous HF therapy/ultrafiltration, no hospitalization
1
0 participants with events
# participants with events with intravenous HF therapy/ultrafiltration, no hospitalization
2
0 participants with events
# participants with events with intravenous HF therapy/ultrafiltration, no hospitalization
3
0 participants with events
# participants with events with intravenous HF therapy/ultrafiltration, no hospitalization
>3
0 participants with events
Race/Ethnicity, Customized
African American
4 Participants
Race/Ethnicity, Customized
Asian Indian
0 Participants
Race/Ethnicity, Customized
Hispanic or Latino
4 Participants
Race/Ethnicity, Customized
Japanese
0 Participants
Race/Ethnicity, Customized
Native Hawaiian
0 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
55 Participants
Race/Ethnicity, Customized
Not Reportable Per Local Laws or Regulations
0 Participants
Race/Ethnicity, Customized
Other
1 Participants
Race/Ethnicity, Customized
Other Pacific Islander
0 Participants
Race/Ethnicity, Customized
Puerto Rican
1 Participants
Race/Ethnicity, Customized
Subject/Physician Chose not to Provide Information
0 Participants
Race/Ethnicity, Customized
Subject/Physician Chose Not to Provide Information
0 Participants
Race/Ethnicity, Customized
White or Caucasian
56 Participants
Region of Enrollment
United States
61 Participants
Sex: Female, Male
Female
19 Participants
Sex: Female, Male
Male
42 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 61
other
Total, other adverse events
0 / 61
serious
Total, serious adverse events
0 / 61

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 22, 2026