Algorithm Using LINQ Sensors for Evaluation And Treatment of Heart Failure

NCT ID: NCT04452149

Last Updated: 2026-01-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

826 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-03

Study Completion Date

2025-06-02

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The ALLEVIATE-HF study is a prospective, randomized, controlled, blinded, multi-site, interventional, investigational device exemption (IDE) pivotal study. The purpose of the study is to demonstrate the safety and efficacy of a patient management pathway that utilizes an integrated device diagnostic-based risk stratification algorithm to guide patient care in subjects with NYHA class II and III heart failure, and to demonstrate the safety of the Reveal LINQ™ system and procedure in the study population.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The study will utilize the market released Reveal LINQ™ Insertable Cardiac Monitor with an investigational ALLEVIATE-HF RAMware download. The study will enroll up to 900 subjects at up to 75 sites in the US. Subjects will be followed until the last enrolled subject is followed for 7 months or until the end of the study, whichever occurs first, or until time of study exit or death as applicable, but no longer than 36 months.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Heart Failure NYHA Class II Heart Failure NYHA Class III

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Following Reveal LINQ™ device insertion, subjects will be randomly allocated in a blinded fashion in a 1:1 ratio to either the observation arm or the intervention arm. Subjects in the observation arm will start with an observational period of 13 months and then transition to the intervention arm for the remainder of their participation in the study.
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Study site personnel and subjects will remain blinded to the subject's randomization assignment until the 13-month timepoint at which point the subjects will be in the intervention arm for the remainder of their participation regardless of original allocation, or until the time of investigator and/or subject contact in relation to a "high" risk status in an intervention arm subject.

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Observation Arm

Subjects will receive a Reveal LINQ™ Insertable Cardiac Monitor with an investigational ALLEVIATE-HF RAMware download, and will be managed per standard of care for heart failure management without visibility to the heart failure sensor data. Subjects will transition to the intervention arm after 13 months.

Group Type PLACEBO_COMPARATOR

Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download

Intervention Type DEVICE

Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download.

Intervention Arm

Subjects will receive a Reveal LINQ™ Insertable Cardiac Monitor with an investigational ALLEVIATE-HF RAMware download, and will be managed using an integrated device diagnostic-based risk stratification algorithm combined with a clinical medication plan.

Group Type EXPERIMENTAL

Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download

Intervention Type DEVICE

Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download.

Medication intervention

Intervention Type OTHER

Risk status guided medication intervention.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download

Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download.

Intervention Type DEVICE

Medication intervention

Risk status guided medication intervention.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patient has NYHA Class II or III heart failure per most recent assessment, irrespective of left ventricular ejection fraction (LVEF)
* Patient has documented recent history of symptomatic heart failure, defined as meeting any one of the following three criteria: 1. Hospital admission with primary diagnosis of HF within the last 12 months, OR 2. Intravenous HF therapy (e.g. IV diuretics/vasodilators) or ultrafiltration within the last 6 months, OR 3. Patient had the following BNP/NT-proBNP within the last 3 months: If LVEF ≥ 50%, then BNP\> 150 pg/ml or NT-proBNP \> 450 pg/ml OR If LVEF is \<50%, then BNP\> 300 pg/ml or NT-proBNP \> 900 pg/ml
* Patient is willing and able to comply with the protocol, including LINQ ICM insertion, CareLink transmissions (including adequate connectivity), study visits and remote care directions.
* Patient is 18 years of age or older.
* Patient has a life expectancy of 12 months or more.

Exclusion Criteria

* Patient is currently implanted with a cardiovascular implantable electronic device (CIED) (e.g. ICM, pacemaker, ICD, CRT-D or CRT-P device) or hemodynamic monitor.
* Patient is receiving temporary or permanent mechanical circulatory support.
* Patient had MI or PCI/CABG within past 90 days.
* Patient has had a heart transplant, or is currently on heart transplant list.
* Patient has severe valve stenosis on echocardiogram.
* Patient has primary pulmonary hypertension (pre-capillary, WHO group 1,3,4,5).
* Patient is on chronic intravenous inotropic drug therapy (e.g. dobutamine, milrinone).
* Patient has severe renal impairment (eGFR \<30 mL/min).
* Patient has systolic blood pressure of \< 90 mmHg at the time of enrollment.
* Patient is on chronic renal dialysis.
* Patient is unable to undergo one round of PRN medication intervention (i.e. 4 days of increased diuretics dose).
* Patient has liver disease, defined as AST/ALT \>5x normal, or bilirubin \>2x normal.
* Patient has serum albumin \< 3 g/dL.
* Patient has hypertrophic obstructive cardiomyopathy, constrictive pericarditis or amyloidosis.
* Patient has complex adult congenital heart disease.
* Patient has active cancer involving chemotherapy and/or radiation therapy.
* Patient weighs more than 500 pounds.
* Patient is pregnant or breastfeeding (all females of child-bearing potential must have a negative pregnancy test within 1 week of enrollment).
* Patient is enrolled in another interventional study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Medtronic Cardiac Rhythm and Heart Failure

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Javed Butler, MD

Role: PRINCIPAL_INVESTIGATOR

Baylor Scott and White Health

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Cardiovascular Associates of Mesa

Mesa, Arizona, United States

Site Status

Arrhythmia Research Group

Jonesboro, Arkansas, United States

Site Status

Saint Joseph Heritage Healthcare

Mission Viejo, California, United States

Site Status

Cardiology Associates Medical Group

Oxnard, California, United States

Site Status

Saint Joseph's Medical Center

Stockton, California, United States

Site Status

South Denver Cardiology Associates

Littleton, Colorado, United States

Site Status

FWD Clinical Research LLC

Boca Raton, Florida, United States

Site Status

Bay Area Cardiology Associates PA

Brandon, Florida, United States

Site Status

Florida Heart Center

Ft. Pierce, Florida, United States

Site Status

Baptist Health

Jacksonville, Florida, United States

Site Status

First Coast Cardiovascular Institute PA

Jacksonville, Florida, United States

Site Status

Citrus Cardiology Consultants PA

Leesburg, Florida, United States

Site Status

Baptist Hospital

Pensacola, Florida, United States

Site Status

Northside Hospital

St. Petersburg, Florida, United States

Site Status

Tallahassee Research Institute

Tallahassee, Florida, United States

Site Status

Memorial Health University Medical Center

Savannah, Georgia, United States

Site Status

NorthShore University Health System

Evanston, Illinois, United States

Site Status

Carle Foundation Hospital

Urbana, Illinois, United States

Site Status

Parkview Health

Fort Wayne, Indiana, United States

Site Status

Ascension Medical Group - Saint Vincent

Indianapolis, Indiana, United States

Site Status

Iowa Heart Center

West Des Moines, Iowa, United States

Site Status

University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status

Saint Elizabeth Healthcare

Edgewood, Kentucky, United States

Site Status

Baptist Healthcare System

Louisville, Kentucky, United States

Site Status

Norton Healthcare

Louisville, Kentucky, United States

Site Status

North Memorial Health Heart &amp; Vascular Center

Robbinsdale, Minnesota, United States

Site Status

University of Mississippi Medical Center

Jackson, Mississippi, United States

Site Status

Cardiology Associates of North Mississippi

Tupelo, Mississippi, United States

Site Status

CHI Health Creighton University Medical Center - Bergan Mercy

Omaha, Nebraska, United States

Site Status

Lourdes Cardiology Services

Voorhees Township, New Jersey, United States

Site Status

New Mexico Heart Institute PA

Albuquerque, New Mexico, United States

Site Status

Columbia University Irving Medical Center/NYPH

New York, New York, United States

Site Status

Hudson Valley Heart Center

Poughkeepsie, New York, United States

Site Status

Saint Francis Hospital

Roslyn, New York, United States

Site Status

Stony Brook University Hospital

Stony Brook, New York, United States

Site Status

Cone Health

Greensboro, North Carolina, United States

Site Status

Novant Health New Hanover Regional Medical Center

Wilmington, North Carolina, United States

Site Status

The Lindner Research Center

Cincinnati, Ohio, United States

Site Status

Mount Carmel East

Columbus, Ohio, United States

Site Status

OhioHealth Research and Innovation Institute (OHRI)

Columbus, Ohio, United States

Site Status

Doylestown Health Cardiology a division of Doylestown Health Physicians

Doylestown, Pennsylvania, United States

Site Status

Cardiology Consultants of Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

Medical University of South Carolina

Charleston, South Carolina, United States

Site Status

Prisma Health Midlands

Columbia, South Carolina, United States

Site Status

The Stern Cardiovascular Foundation

Germantown, Tennessee, United States

Site Status

University of Tennessee Methodist Physicians

Memphis, Tennessee, United States

Site Status

Medical City Fort Worth

Fort Worth, Texas, United States

Site Status

Tyler Cardiovascular Consultants

Tyler, Texas, United States

Site Status

Sentara Norfolk General Hospital

Norfolk, Virginia, United States

Site Status

Swedish Medical Center Cherry Hill

Seattle, Washington, United States

Site Status

Saint Joseph Medical Center (Tacoma WA)

Tacoma, Washington, United States

Site Status

Charleston Area Medical Center (CAMC) Memorial Hospital

Charleston, West Virginia, United States

Site Status

West Virginia University

Morgantown, West Virginia, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Kahwash R, Zile MR, Chalasani P, Bertolet B, Gravelin L, Khan MS, Wehking J, Van Dorn B, Sarkar S, Laager V, Gerritse B, Laechelt A, Butler J; ALLEVIATE-HF Phase I Investigators. Personalized Intervention Strategy Based on a Risk Score Generated From Subcutaneous Insertable Cardiac Monitor: Results From Phase 1 of ALLEVIATE-HF. J Am Heart Assoc. 2024 Oct 15;13(20):e035501. doi: 10.1161/JAHA.124.035501. Epub 2024 Oct 11.

Reference Type DERIVED
PMID: 39392161 (View on PubMed)

Zile MR, Kahwash R, Sarkar S, Koehler J, Zielinski T, Mehra MR, Fonarow GC, Gulati S, Butler J. A Novel Heart Failure Diagnostic Risk Score Using a Minimally Invasive Subcutaneous Insertable Cardiac Monitor. JACC Heart Fail. 2024 Jan;12(1):182-196. doi: 10.1016/j.jchf.2023.09.014. Epub 2023 Nov 8.

Reference Type DERIVED
PMID: 37943225 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

ALLEVIATE-HF

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Reveal LINQ Registry
NCT02746471 COMPLETED
Digital Remote Home Monitoring for Heart Failure
NCT05988749 ENROLLING_BY_INVITATION NA