CClinicalTrials.gg
TerminatedNCT00480077DOT-HFUpdated Jul 2, 2025Results posted

Diagnostic Outcome Trial in Heart Failure (DOT-HF Trial)

A Phase 4 interventional study of Programming (CRT-D, ICD OptiVol® and Cardiac Compass® ) in Heart Failure, sponsored by Medtronic Cardiac Rhythm and Heart Failure. Terminated at 1 site in Netherlands. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-07-02.

Sponsored by Medtronic Cardiac Rhythm and Heart Failure · Phase 4, Interventional, and Treatment

Why this study was terminated
Low enrollment rates
Phase
Phase 4
Study type
Interventional
Enrollment
335
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

The DOT-HF trial is an international, prospective, multi-center, randomized, controlled trial.

Read the detailed description

The study was designed with a Control Arm in order to adequately study the effect of early intervention triggered by the OptiVol® Alert and/or SentryCheck™ Monitor/PatientLook™ Indicator and evaluation using OptiVol® Fluid Status Monitoring with Cardiac Compass. OptiVol® Fluid Status Monitoring with Cardiac Compass features are available in the per Clinical Investigational Plan specified Medtronic products (CRT, CRT-D and ICD devices)

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Conditions studied

  • Heart Failure

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Keywords

  • Heart Failure, randomized, OptiVol® Fluid status monitoring
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In context

Heart Failure

5,701 studies on the registry are indexed under Heart Failure; 1,220 are open to participants now.

This study's enrollment of 335 is above the median of 72 across 3,736 interventional studies indexed under Heart Failure.

Browse Heart Failure studies →

Lead sponsor

Medtronic Cardiac Rhythm and Heart Failure is the lead sponsor of 239 studies on the registry; 6 are open to participants now.

Of its 19 completed or terminated interventional studies of FDA-regulated products, 17 (89%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subjects of both genders with mild to severe HF as defined as NHYA Class II to IV who also have an indication for device implant according to ESC/AHA guidelines as well as having a HF hospitalization or Emergency Department visit necessitating therapy within the past 12 months and who meet all inclusion criteria and no exclusion criteria, are eligible for this study.

Exclusion criteria

Exclusion Criteria:

  • Subject is post heart transplant or actively listed on the transplant list and reasonable probability (as defined by investigator) of undergoing transplantation in the next year
  • Subject received a coronary artery bypass graft or valve surgery in last 90 days
  • Subject with a myocardial infarction (MI) in the last 40 days.
  • Subject's life expectancy is less than one year in the opinion of the physician
  • Subject has severe Chronic Obstructive Pulmonary Disease (COPD), as determined by physician and documented in medical records
  • Subject is listed for valve replacement/valve repair
  • Subject has severe, primary pulmonary hypertension as determined by physician and documented in medical records
  • Subject with serum creatinine ≥ 2.5 mg/dL measured within 14 days prior to enrolment
  • Subject on chronic renal dialysis
  • Subject on continuous or uninterrupted (≥ 2 stable infusions per week) infusion (inotropic) therapy for HF
  • Subject has complex and uncorrected Congenital Heart Disease
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
335 participants (actual)

Study arms

  • Experimental
    Access Arm

    HF subjects managed with standard clinical assessment and using the audible OptiVol® Fluid status monitoring alert and the device Cardiac Compass Report

    Device: Programming (CRT-D, ICD OptiVol® and Cardiac Compass® )

  • Active comparator
    Control arm

    HF subjects managed with standard clinical assessment

    Device: Programming (CRT-D, ICD OptiVol® and Cardiac Compass® )

Interventions

  • DeviceProgramming (CRT-D, ICD OptiVol® and Cardiac Compass® )

    OptiVol® Fluid status Monitoring with Cardiac Compass

    Also known as: OptiVol® audible alert

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What researchers measure

Primary outcomes

  1. Number of Participants With Combined End Point of All-cause Mortality or Heart Failure Hospitalization

    Number of participants with a combined end point of all-cause mortality or heart failure hospitalization

    Time frame: 14.9 ± 5.4 months

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Results

Posted Feb 19, 2019

Participant flow

Participant flow — Overall Study
MilestoneAccess ArmControl Arm
Started168167
Completed137141
Not completed3126
Withdrew: Death1915
Withdrew: Early exit1211

Outcome measures

PrimaryNumber of Participants With Combined End Point of All-cause Mortality or Heart Failure Hospitalization

Number of participants with a combined end point of all-cause mortality or heart failure hospitalization

Time frame:
14.9 ± 5.4 months
Reported as:
Count of participants · Participants
Number of Participants With Combined End Point of All-cause Mortality or Heart Failure Hospitalization
ParticipantsAccess ArmControl Arm
Number of Participants With Combined End Point of All-cause Mortality or Heart Failure Hospitalization4833
Statistical analysis
  • Access Arm vs Control Arm · Log Rank · p = 0.063

Adverse events

Collected over mean follow up period (months): 14.9 +/- 5.4. Non-serious events are listed at a 2.5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Access Arm—50/168 (29.8%)47/168 (28%)
Control Arm—34/167 (20.4%)20/167 (12%)
Most frequent serious events
Most frequent serious events
EventAccess ArmControl Arm
Cardiac failureCardiac disorders39/16823/167
PneumoniaInfections and infestations6/1684/167
Lead DislodgementInjury, poisoning and procedural complications4/1683/167
AnaemiaBlood and lymphatic system disorders0/1682/167
DyspnoeaRespiratory, thoracic and mediastinal disorders1/1682/167
Most frequent other events
Most frequent other events
EventAccess ArmControl Arm
DyspnoeaRespiratory, thoracic and mediastinal disorders19/16811/167
Chest painGeneral disorders8/1683/167
Cardiac failureCardiac disorders7/1683/167
Ventricular tachycardiaCardiac disorders7/1680/167
Oedema peripheralGeneral disorders6/1683/167

Baseline characteristics

Age, Continuous
Age, Continuous(years)Access ArmControl ArmTotal
Mean64 ± 1064 ± 1064 ± 10
Sex: Female, Male
Sex: Female, Male(Participants)Access ArmControl ArmTotal
Female222547
Male146142288
QRS duration
QRS duration(ms)Access ArmControl ArmTotal
Mean142 ± 39143 ± 36142 ± 38
Body Mass Index
Body Mass Index(kg/m^2)Access ArmControl ArmTotal
Mean28 ± 527 ± 428 ± 4
NYHA functional class
NYHA functional class(participants)Access ArmControl ArmTotal
NYHA functional class I6511
NYHA functional class II98103201
NYHA functional class III6358121
NYHA functional class IV112
LVEF
LVEF(%)Access ArmControl ArmTotal
Mean25 ± 725 ± 725 ± 7
Type of device implanted
Type of device implanted(Participants)Access ArmControl ArmTotal
CRT-D141133274
ICD273461
08

Study locations

1 site
  • Medtronic Bakken Research Center
    Maastricht, 6229 GW, Netherlands
09

References and documents

Publications

  • van Veldhuisen DJ, Braunschweig F, Conraads V, Ford I, Cowie MR, Jondeau G, Kautzner J, Aguilera RM, Lunati M, Yu CM, Gerritse B, Borggrefe M; DOT-HF Investigators. Intrathoracic impedance monitoring, audible patient alerts, and outcome in patients with heart failure. Circulation. 2011 Oct 18;124(16):1719-26. doi: 10.1161/CIRCULATIONAHA.111.043042. Epub 2011 Sep 19. PubMed 21931078 ↗
  • Conraads VM, Spruit MA, Braunschweig F, Cowie MR, Tavazzi L, Borggrefe M, Hill MR, Jacobs S, Gerritse B, van Veldhuisen DJ. Physical activity measured with implanted devices predicts patient outcome in chronic heart failure. Circ Heart Fail. 2014 Mar 1;7(2):279-87. doi: 10.1161/CIRCHEARTFAILURE.113.000883. Epub 2014 Feb 11. PubMed 24519908 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 2, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00480077
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Responsible party
Sponsor
First posted
May 30, 2007
Start date
Mar 2007
Primary completion
Jan 2011
Completion
Jan 2011
Results posted
Feb 19, 2019
Last update
Jul 2, 2025

Study contacts

Prof. D.J. van Veldhuisen, MD
study chair · Groningen University Hospital, The Netherlands
Prof. Dr. med. M. Borggrefe
study chair · Ruprecht-Karls-Universität Heidelberg, Germany
Prof. Dr. V. Conraads
principal investigator · Universitair Ziekenhuis Brussel
Prof. C.M. Yu
principal investigator · Prince of Wales Hospital, Shatin, Hong Kong
Dr. F. Braunschweig
principal investigator · Karolinska University Hospital
Prof. Dr. J. Kautzner
principal investigator · IKEM- Klinika Kardiologie, Czech Republic
Prof. Dr. G. Jondeau
principal investigator · Hôpital Bichat Claude Bernard, France
Prof. Dr. M.R. Cowie
principal investigator · National Heart & Lung Institute, United Kingdom
Dr. R. Muñoz-Aguilera
principal investigator · Hospital General Universitario Gregorio Marañon, Spain
Prof. I. Ford
principal investigator · Robertson Center for Biostatistics, Scotland
Dr. M Lunati
principal investigator · Azienda Ospedaliera Niguarda Ca' Granda

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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