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Evaluation of FlowMod System While Intermittently Partially Occluding Vena Cava Blood Flow in Subjects With ADHF (FLOW-HF)

2026年9月3日 更新者:FlowMod, Inc.

An Evaluation of the FLOWMod System to Occlude Vena Cava Blood Flow in Subjects With Acute Decompensated Heart Failure

FLOW-HF will assess the impact of intermittent partial occlusion of the SVC and/or IVC, the cardiac filling pressure and the difference of effects between the two occlusion locations (SVC and IVC) using the FlowMod flow modulating device on select parameters in subjects experiencing ADHF (Acute Decompensated Heart Failure)

研究概览

详细说明

Intermittent occlusion of the superior vena cava (SVC) and/or inferior vena cava (IVC) might be associated with positive beneficial effects on cardiac filling pressures and improved patient outcomes.

研究类型

介入性

注册 (估计的)

30

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

学习地点

      • Tashkent、乌兹别克斯坦
        • Ezgu Niyat Medical Clinic
      • Tashkent、乌兹别克斯坦
        • Republican Specialized Center of Cardiology
      • Tbilisi、乔治亚州、0186
        • Tbilisi Heart Center
      • Tbilisi、乔治亚州
        • Tbilisi Heart And Vascular Clinic

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

Male or females between 18 and 85 years of age

NYHA Class III-IV heart failure

Stage C-D systolic heart failure

Clinically indicated for right heart catheterization

Volume overload status of the subject confirmed by the presence of at least 1 or more of the following congestion signs or symptoms assessed by physical examination or x-ray: Peripheral edema, rales, jugular venous distension, abdominal distension or evidence of congestion by chest x-ray

Subjects with RAP >10 mmHg

Subjects with PCWP >18 mmHg

Subjects with inadequate diuresis defined as total urinary output over the most recent 8 hours prior to enrollment of <1200 mL while on a stable dose of diuretics

Subjects with eGFR >30mL/min/1.732

Exclusion Criteria:

Severe valvular stenosis

Severe aortic valve regurgitation

Subjects with a contraindication to contrast dye

Active myocardial ischemia (MI) or acute coronary syndrome (ACS)

ACS or MI within 30 days prior to enrollment

Contraindication to unfractionated heparin

Unable to provide informed consent

Subjects with impaired decision-making capacity

Subjects receiving mechanical circulatory support

Subjects with history of cardiac transplant

Pregnant subjects

Right atrial/ventricular thrombus

Subjects with inadequate jugular vein access due to prior jugular vein thrombosis or indwelling chronic ports or catheters or presence of vena cava filter

Inability to tolerate right heart catheterization

Subjects who have a history of major or minor stroke or TIA ≤ 12 months or subjects with a history of stroke > 12 months who have a residual neurological deficit

Hypersensitivity or contraindication to latex

Sustained ventricular tachycardia (>10 beats) within 24 hours and/or ventricular fibrillation within 24 hours

Subjects with history of CABG ≤ 3 months

Subjects with pacemaker or defibrillator leads placed through the SVC ≤ 3 months prior to procedure

Rapid atrial fibrillation (HR>120 bpm)

Systolic blood pressure < 90 mm Hg

Inability to interrupt the anticoagulation treatment

Subjects with known coagulopathy or any blood disorders

Subjects with life expectancy of <30 days or known risk for mortality within 90 days

Prior carotid interventions (stenting or endarterectomy)

Severe carotid disease

History of DVT (<6m or requiring ongoing anticoagulants for either DVT or hypercoagulable state)

History of pulmonary embolism

SVC/IVC stenosis

SVC/IVC diameter not suitable for balloon inflations

Subjects receiving hemodialysis or planning to within 30 days

Planned LVAD device placement

Subject on >2 inotropes or escalating inotropes during pre-enrollment hospitalization

Right ventricular failure based on an RA:PCWP ratio of >0.8, PAPi<1.0; or TAPSE<10

Subjects with Ejection Fraction (EF) of <15%

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:不适用
  • 介入模型:单组作业
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:FlowMod System in subjects with acute decompensated heart failure (ADHF)
Participant with acute decompensated heart failure (ADHF) while the FlowMod System reduces preloading of the heart.
The FlowMod System is used in subjects with acute decompensated heart failure (ADHF) for limiting blood flow in the inferior and superior vena cava vessels to the right heart to reduce preloading of the heart.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Freedom from device- or procedure-related major adverse events (MAEs) through 30 days post procedure
大体时间:Through 30 days post procedure
Freedom from device- or procedure-related major adverse events (MAEs) through 30 days post procedure defined as: death, myocardial infarction, major thromboembolic event, vascular damage requiring surgical intervention, hemorrhagic stroke, or prolongation of heart failure-related hospitalization, attributable to the FlowMod device or procedure
Through 30 days post procedure

次要结果测量

结果测量
措施说明
大体时间
Freedom from primary endpoint MAEs
大体时间:Through 90 days post procedure
Defined as: death, myocardial infarction, major thromboembolic event, vascular damage requiring surgical intervention, hemorrhagic stroke, or prolongation of heart failure-related hospitalization, attributable to the FlowMod device or procedure
Through 90 days post procedure
Acute Technical Success
大体时间:Immediately after the procedure
Defined as successful device deployment, ability to intermittently partially occlude the SVC/IVC and successful device removal
Immediately after the procedure
Time from device removal to hospital discharge
大体时间:Through index discharge, an average of 24 hours
Time from device removal to hospital discharge will be defined as the elapsed time, in hours, between the documented date and time of complete FlowMod device removal and the documented date and time of discharge from the index hospitalization.
Through index discharge, an average of 24 hours
Heart failure-related re-hospitalization rates at 30 and 90 days
大体时间:30 days and 90 days
defined as any hospital admission occurring after index discharge that is primarily due to worsening signs and/or symptoms of heart failure requiring inpatient treatment.
30 days and 90 days
Re-hospitalization rates (any cause) at 30 and 90 days
大体时间:30 days and 90 days
Rate of hospital admissions occurring after index discharge for any cause
30 days and 90 days
Urinary spot sodium (3 hours after start of therapy)
大体时间:3 hours after start of therapy
Urinary sodium concentration measured in a spot urine sample
3 hours after start of therapy
Weight loss
大体时间:From baseline through study completion, an average of 90 days
Change in subject body weight from baseline to protocol-specified post-treatment timepoints
From baseline through study completion, an average of 90 days
Time to discharge readiness
大体时间:From post-procedure to index discharge, an average of 24 hours
Time until the subject is considered clinically ready for safe discharge according to institutional criteria and treating physician assessment.
From post-procedure to index discharge, an average of 24 hours
Index admission hemodialysis or continued renal replacement therapy
大体时间:Periprocedural hemodialysis, an average of 24 hours
Occurrence of hemodialysis or continued renal replacement therapy during the index hospitalization following FlowMod therapy.
Periprocedural hemodialysis, an average of 24 hours
Hemodialysis post discharge through 90 days post discharge
大体时间:Through 90 days after index discharge
Occurrence of hemodialysis after index hospital discharge
Through 90 days after index discharge
Modified Borg Dyspnea change from baseline, at 12 hours during therapy and post device removal
大体时间:Baseline to 12 hours during therapy and post device removal
Change in patient-reported dyspnea severity from baseline, measured using the Modified Borg Dyspnea scale at 12 hours during therapy and after device removal
Baseline to 12 hours during therapy and post device removal
Diuretic efficiency changes from baseline, at 12 hours during therapy and post device removal
大体时间:At 12 hours and post device removal, an average of 24 hours
Diuretic efficiency assessed by urinary output measured in milliliters (mL)
At 12 hours and post device removal, an average of 24 hours
EQ5D change from baseline at discharge, 30 and 90 days
大体时间:EQ5D from Baseline at discharge, (an average of 24 hours) and at 30 days and 90 days
Change from baseline in EQ-5D score, a standardized measure of health-related quality of life across mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, with self-rated overall health status, assessed at hospital discharge, 30 days, and 90 days.
EQ5D from Baseline at discharge, (an average of 24 hours) and at 30 days and 90 days
eGFR change from baseline and at 24 hours after initiation of therapy or hospital discharge, whichever comes first
大体时间:Baseline to 24 hours after initiation of therapy or hospital discharge, whichever occurs first
Change from baseline in estimated glomerular filtration rate (eGFR), calculated based on serum creatinine and used to evaluate renal function, assessed at 24 hours after initiation of FlowMod therapy or at hospital discharge, whichever occurs first.
Baseline to 24 hours after initiation of therapy or hospital discharge, whichever occurs first
Cystatin C changes from baseline and at 24 hours after initiation of therapy or hospital discharge, whichever comes first
大体时间:Baseline to 24 hours after initiation of therapy or hospital discharge, whichever occurs first
Change from baseline in Cystatin C, a blood biomarker used to assess kidney function and evaluate changes over time, assessed at 24 hours after initiation of FlowMod therapy or at hospital discharge, whichever occurs first
Baseline to 24 hours after initiation of therapy or hospital discharge, whichever occurs first
Right atrial, pulmonary artery, PCWP and cardiac output changes from baseline, at 8 hours during therapy and end of therapy
大体时间:Baseline, 8 hours during therapy, and end of therapy
Change from baseline in invasive hemodynamic parameters, including right atrial pressure, pulmonary artery pressure, pulmonary capillary wedge pressure, and cardiac output, assessed at 8 hours during FlowMod therapy and at end of therapy.
Baseline, 8 hours during therapy, and end of therapy

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年9月5日

初级完成 (估计的)

2027年2月15日

研究完成 (估计的)

2027年5月15日

研究注册日期

首次提交

2026年8月24日

首先提交符合 QC 标准的

2026年9月3日

首次发布 (实际的)

2026年9月9日

研究记录更新

最后更新发布 (实际的)

2026年9月9日

上次提交的符合 QC 标准的更新

2026年9月3日

最后验证

2026年9月1日

更多信息

与本研究相关的术语

其他研究编号

  • CP1207

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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