Benefits of µCor in Ambulatory Decompensated Heart Failure
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 257
- 试验地点
- 117
- 主要终点
- Correlation of µCor Readings to Heart Failure Related Clinical Events
研究概览
简要总结
Subjects meeting the inclusion/exclusion criteria will wear the µCor for at least 90 days. During the study, clinic follow up will occur every 30 days. For all subjects, each scheduled clinic visit will include assessment of cardiac symptoms and any relevant clinically actionable events. The subject will be given a daily diary to track symptoms, unplanned hospital visits, medication changes, and all other heart failure related clinical events. Weekly phone calls to the subject will be given throughout the duration of the study to remind the patient to use the subject diary and to collect and record heart failure related clinical events. Subjects will be contacted six months and one year from initial enrollment to assess the vital status of the subject, any heart failure related clinical events since the end of µCor wear, and any health care utilization since the end of µCor wear.
详细描述
Subjects meeting the inclusion/exclusion criteria will wear µCor for 90 days from the day of fitting. 500 total patients will be enrolled. There will be an interim analysis when the 200th subject has finished the study in the study to assess for distribution of patients with reduced and preserved LVEF.
Subjects will be fitted with µCor during hospital discharge or within a clinic visit that has occurred within 10 days of a heart failure related hospitalization. The µCor fitting will mark day 0 of the study. An LVEF measurement will be recorded during enrollment or within 30 days post enrollment if an LVEF measurement has not been recorded within 30 days prior to enrollment. An investigator assessment will be performed during all clinic visits. The assessment template is shown in Appendix A.
Subjects will be given a diary at enrollment that will ask them to rate their degree of specific symptoms of heart failure such as shortness of breath and fatigue as well as mark any heart failure related clinical events or medication changes that have occurred since the last entry.
Study follow up visits will occur at day 30, day 60, and day 90. During follow up visits the subjects will be asked about any heart failure related clinical events or change in symptoms that have occurred since the last follow up. The subject will receive a study based weekly phone call asking the subject about any recent heart failure related clinical events or change in heart failure symptoms. During the weekly phone call the subject will be reminded to fill out the daily diary. No phone calls will be given on the week where there is a study follow up visit. There will be 9 total phone calls.
During the Day 90 visit, the subject will be given the option to continue wearing the µCor for an additional 90 days. Furthermore, if the subject experienced a heart failure related clinical event within the initial 90 days of wear, the subject will be given the option of wearing the µCor for 30 days following the heart failure event. .If the subject chooses additional wear time, weekly phone calls and monthly visits will be structured identical to that of the main study period. The µCor will be returned at end of use.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 21 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Subjects either hospitalized for decompensated systolic, diastolic, or combined heart failure or subjects presenting at an outpatient clinic with a history of hospital discharge for decompensated systolic, diastolic, or combined heart failure within the previous 10 days.
- •All subjects must be 21 years of age or older on the day of screening.
排除标准
- •Subjects who are wearing the wearable cardioverter defibrillator (WCD)
- •Subjects not expected to survive one year from enrollment from non-cardiac disease.
- •Subjects with skin allergy or sensitivity to medical adhesives.
- •Subjects anticipated to start dialysis within 90 days.
- •Subjects currently implanted with an S-ICD system.
- •Subjects whose primary diagnosis on hospital admission was Acute Coronary Syndrome (ACS) STEMI/NSTEMI rather than heart failure exacerbation.
- •Subjects who are unable to participate in all follow up visits.
- •Subjects participating in any other research at time of enrollment.
- •Subjects currently implanted with an LVAD.
结局指标
主要结局
Correlation of µCor Readings to Heart Failure Related Clinical Events
时间窗: 3 months
Definitions: Daytime: 7:00 AM - 12:00 AM Nighttime: 12:00 AM - 7:00 AM For each day on which the subject wore the device, the following values were calculated: Daytime activity: The proportion of minutes while wearing the device that the subject spent active (unitless). Nighttime heart rate: The median heart rate while wearing the device during the night (beats/min) Thoracic fluid index: The median proportion of ratio of radiofrequency-measured lung fluid readings compared to the subject's baseline (unitless). Nighttime posture: The median pitch angle while wearing the device during the night (degrees, where 0 is the horizontal). Nighttime respiration: The median respiration rate while wearing the device during the night (breaths/min) HF event: a hospitalization primarily due to heart failure
Correlation of μCor Readings to Heart Failure Related Clinical Events
时间窗: 3 months
HF Event: a hospitalization primarily due to heart failure within 90 days. Time window: The 7 days prior to the 1st heart failure hospitalization, or the final 7 days of device wear if no HF event occurred.
次要结局
- Establishment of Rate of Occurrence of VT/VF Episodes and Arrhythmic Death in Subjects(Baseline, 90 days, 1 YR)
- Correlation Between μCor Measurements and Subject Reported Symptoms - Area Under Curve(3 months)
- Correlation Between μCor Measurements and Subject Reported Symptoms - Number of Mild/Severe Symptoms(3 months)
- Frequency of Subject Reported Symptoms(3 months)
- Timing of Subject Reported Symptoms(3 months)
- Severity of Subject Reported Symptoms(3 months)
- Hospital Readmission Rate During the Study Period(3 months)
- Mortality, Heart Failure Related Events, and Health Care Utilization Data at Six Months and One Year Post Enrollment(6 months and 1 year)
- Hospital Readmission Rate During Previous 90 Days Prior to Enrollment in Study(3 months)