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Cardiovascular DiseasesMANDATE-AFNCT04172883

Management of Device Detected AT and Impact of Device Treatment Algorithms on Atrial Fibrillation

A study testing Treatment arm in people with Cardiovascular Diseases, run by Medtronic Cardiac Rhythm and Heart Failure at 11 sites in India.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The MANDATE-AF study was designed to address evidence needs in India for device-based management of AF using AT/AF (Atrial Tachycardia/Atrial fibrillation) diagnostic features and therapies such as Reactive Atrial anti tachycardia Pacing (rATP) within Medtronic Cardiac Implantable Electronic Devices (CIED)and its… Read more about this study

Who is it for?
Ages 18 to 100 years
Conditions the study is for
Cardiovascular Diseases
What is being tested?
Treatment arm
Could I receive a placebo?
No, everyone receives an active treatment
How many people
79 participants
Where
11 sitesIndia
Study dates
1 Oct 2019to 28 Jul 2021
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1 Subject is implanted with a Medtronic cardiac implantable device with an atrial lead equipped with atrial ATP therapies (rATP) enabled no longer than 18 months and at the minimum 6 weeks has passed since the implant; 2. Age > 55 years; 3. Subject provides informed consent; 4. Subject is willing and able to comply with the study procedures; 5. Subject has documented history of atrial fibrillation or atrial flutter, or one or more of the risk factors for developing AF as per AHA/HRS (American heart Association/Heart rhythm Society) guidelines.
  • Age > 60 years;
  • Stroke/TIA (Transient ischemic Attack);
  • Diabetes;
  • High Blood Pressure;
  • Coronary artery disease;
Show all 18Show fewer
  • Cardiomyopathy;
  • Pericardial inflammation;
  • Prior heart attacks;
  • Congestive heart failure;
  • Structural heart disease (valve problems or congenital defects);
  • Prior open-heart surgery;
  • Untreated atrial flutter (another type of abnormal heart rhythm);
  • Thyroid disease;
  • Chronic lung disease;
  • Sleep apnea;
  • Excessive alcohol use;
  • Serious illness or infection.

Who cannot join

  • Patients are not eligible to be enrolled in the study if any of the following criteria is met:
  • Subject has been implanted with a Medtronic cardiac implantable device with an atrial lead equipped with atrial ATP therapies (rATP) enabled for more than 18 months;
  • Subject is in permanent AF or persistent AF at the baseline visit:
  • The definition of permanent AF will be based on the physicians' decision that nothing further can be done to cardiovert the patient or, in historical cases, the investigators will refer to the Cardiac Compass reports:
  • The definition of persistent AF at baseline will refer to the Cardiac Compass reports (>7 consecutive days in AF with the last day being the day of enrollment)
  • Participation in other studies which could potentially conflict with this study;
  • Legal incapacity or evidence that a subject cannot understand the purpose and risks of the study or inability to comply fully with study procedures and follow up.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

India11 sites
  • Care Institute of medical sciences and research

    Ahmedabad, Gujarat

  • Apollo Hospital , Bannerghatta

    Bangalore, Karnataka

  • Apollo Hospital

    Bhubaneswar, Odisha

  • Apollo Hospital

    Chennai, Tamil Nadu

  • AIG hospital

    Hyderabad, Telangana

  • Eternal Heart Care center and Research

    Jaipur, Rajasthan

  • Aster Medicity

    Kochi, Kerala

  • Fortis Escort Hospital

    Mohali, Punjab

  • Apollo BGS Hospital

    Mysore, Karnataka

  • Sir Ganga Ram Hospital

    New Delhi, National Capital Territory of Delhi, 110060

  • Fortis Escorts Heart Institute

    New Delhi, National Capital Territory of Delhi

Other trials in India

About this study

Official title: Management of Device Detected Atrial Tachyarrhythmia( AT) and Impact of Device Treatment Algorithms on Atrial Fibrillation (AF) in Indian Population

The MANDATE-AF study was designed to address evidence needs in India for device-based management of AF using AT/AF (Atrial Tachycardia/Atrial fibrillation) diagnostic features and therapies such as Reactive Atrial anti tachycardia Pacing (rATP) within Medtronic Cardiac Implantable Electronic Devices (CIED)and its impact on the time to persistent AF and progression of AT/AF.

Read the detailed description

New generation Cardiac Implantable Electronic devices (CIED's)such as Pacemakers, Implantable Cardioverter Defibrillator (ICD) and Cardiac Resynchronization Therapy (CRT) has diagnostic and treatment delivery features which helps in slowing the progression of Atrial Fibrillation. A Study conducted in Europe, called the MINERVA Trial, showed the efficacy of a feature within Medtronic CIED's called (rATP)™, in the termination of abnormal rhythms by pacing stimuli, and clinical benefit in reducing incidence of Atrial Fibrillation. However, there is dearth of local evidence of this within the Indian population and also a need to show that turning on rATP does not compromise on battery depletion.

The MANDATE-AF study is a prospective , Interventional , Randomized, single blind study aiming to show that a reduced sequence programming of this rATP therapy ,can improve device battery longevity and is as effective as the Minerva trial ATP programming when it comes to showing its impact on time to persistent AF and on the progression of AT/AF within the Indian population.

The study analyses patients implanted with a Medtronic cardiac implantable device with an atrial lead and equipped with atrial ATP therapies.

The patients will be randomized into two groups:

  • an interventional arm including patients with a conservative atrial ATP therapies programming setting
  • a control, arm including patients with the same atrial ATP therapies programming setting adopted in the Minerva Trial

Cardiovascular events will be collected prospectively for at least 24 months after enrollment. Physicians will be recommended to schedule in clinic follow-up visits every 6 months and remote follow-up visits every 3 months in between. Every patient will be followed for at least 24 months, until the last patient enrolled exits the study.

Being tested
Treatment arm
Keywords
Reactive ATP, device based Management of Atrial fibrilation, AF Management
Medical subject headings
Cardiovascular Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Treatment armOther

    Also called programming changes

    All pts are implanted with rATP enabled devices prior to the study start , the only intervention in both arms is switching on rATP and in the treatment arm programming changes done to optimize the rATP sequence delivery of therapy and prevent the patient from going into permanent or persistent AF

Study groups in NCT04172883
Study groupRoleWhat they receive
Control armNo interventionThe devices on the study are all commercially available and enabled with reactive ATP( rATP)feature, for the study both arms will have rATP switched on with one arm on the standard device setting or MINERVA setting ( control arm)
Treatment armActive comparatorThe devices on the study are all commercially available and enabled with reactive ATP( rATP)feature, for the study both arms will have rATP switched on with one arm on the reduced sequence programming ( treatment arm)
Receives: Other: Treatment arm

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of 'Persistent AF' Over Time

    Probability of participants to encounter 'Persistant AF" was analyzed over time. This information is obtained using Kaplan-Meier method. The occurrence of Persistant AF has been studied over time by using Kaplan-Meier technique. Probabilities and their 95% confidence intervals have been obtained at baseline, 6 months, 12 months and 18 months. We are studying the occurrence of Persistant AF based on results obtained from the Kaplan-Meier method.

    Measured: up to 18 months

Secondary outcomes (17)
  1. Incidence of All-cause Death Over Time

    Probability of participants to encounter 'All-cause death was analyzed over time. This information is obtained using Kaplan-Meier method. The occurrence of All-cause death has been studied over time by using Kaplan-Meier technique. Probabilities and their 95% confidence intervals have been obtained at baseline, 6 months, 12 months and 18 months. We are studying the occurrence of All-cause death based on results obtained from the Kaplan-Meier method.

    Measured: up to 18 months

  2. Cardiovascular Hospitalization

    Compare the two atrial ATP Programming arms in terms of clinical endpoints such as cardiovascular hospitalizations (due to Heart Failure (HF), AF or other), as measured by the time to first event and annual rate of such events. No CV related hospitalization events were observed.

    This information is obtained using the Kaplan-Meier method. The incidence of CV hospitalization has been studied using the Kaplan-Meier technique. Incidence rates and their 95% confidence intervals have been obtained at baseline, 6 months, 12 months and 18 months.'

    Measured: 18 Months

  3. Annual Rate for All-cause Hospitalization

    Compare the two atrial ATP Programming arms in terms of clinical endpoints such as all cause hospitalizations and its annual rate on the study

    Measured: 18 months

  4. Incidence of AT/AF Burden ≥ 1day Overtime

    Probability of participants to encounter AT/AF Burden ≥ 1day was analyzed over time. This information is obtained using Kaplan-Meier method. The occurrence of AT/AF Burden ≥ 1day has been studied over time by using Kaplan-Meier technique. Probabilities and their 95% confidence intervals have been obtained at baseline, 6 months, 12 months and 18 months. We are studying the occurrence of AT/AF Burden ≥ 1day based on results obtained from the Kaplan-Meier method.

    Measured: up to 18 months

  5. Incidence of AT/AF Burden ≥ 30 Days Overtime

    Probability of participants to encounter AT/AF Burden ≥ 30 days was analyzed over time. This information is obtained using Kaplan-Meier method. The occurrence of 'AT/AF Burden ≥ 30 days has been studied over time by using Kaplan-Meier technique. Probabilities and their 95% confidence intervals have been obtained at baseline, 6 months, 12 months and 18 months. We are studying the occurrence of AT/AF Burden ≥ 30 days based on results obtained from the Kaplan-Meier method.

    Measured: up to 18 months

  6. Incidence of AT/AF Burden ≥ 2 Days Overtime

    Probability of participants to encounter AT/AF Burden ≥ 2 days was analyzed over time. This information is obtained using Kaplan-Meier method. The occurrence of AT/AF Burden ≥ 2 days has been studied over time by using Kaplan-Meier technique. Probabilities and their 95% confidence intervals have been obtained at baseline, 6 months, 12 months and 18 months. We are studying the occurrence of AT/AF Burden ≥ 2 days based on results obtained from the Kaplan-Meier method.

    Measured: up to 18 months

  7. Evaluate Number of Successful and Unsuccessful Treated AT/AF Episodes Out of the Detected Episodes

    Compare the two atrial ATP Programming arms in terms of clinical endpoints to assess number of successful and unsuccessful treated AT/AF episodes out of detected episodes by the device .

    Measured: 18 months

  8. Measure Number of Delivered Therapies Per Episode

    Compare the two ATP programming arms in terms of clinical endpoints to measure the average number of ATP sequences delivered per patient on each arm

    Measured: 18 months

  9. Evaluate the Number of ATP Sequences

    Compare the two ATP programming arms in terms of clinical endpoints to measure the number of ATP sequences delivered on each arm.

    Measured: 18 months

  10. Evaluate Number of Stroke, TIA (Transient Ischemic Attack ) or Other Thromboembolic Events

    compare the two atrial ATP Programming arms in terms of clinical endpoints to calculate number of stroke, TIA or other thromboembolic events reported on the study across both arms

    Measured: 18 months

  11. Percentage of Patients Treated With Anticoagulation Therapy

    Compare the two ATP programming arms in terms of clinical endpoints to evaluate the percentage of patients treated with anticoagulation therapy according to AF management guideline.

    Measured: 18 months

  12. Measure the Left Atrial Diameter Size

    Compare the two ATP programming arms in terms of clinical endpoints to evaluate the Left Atrial diameter (if available) as measured through an Echocardiogram

    Measured: up to 18 months

  13. Number of Pharmacological and Electrical Cardio Versions Reported

    Compare the two ATP programming arms in terms of clinical endpoints such as number of electrical or pharmacological cardio-versions measured in terms of time to first event and its annual rate on the study;

    Measured: 18 months

  14. Evaluate the Biventricular Pacing Percentage (Average)

    Compare the two ATP programming arms in terms of clinical endpoints such as biventricular pacing percentage (in cardiac resynchronization therapy defibrillator (CRT-D) / cardiac resynchronization therapy-Pacemaker (CRT-P) patients)

    Measured: 18 months

  15. Incidence of the Composite Endpoints Like Death or Cardiovascular Hospitalizations

    A cumulative endpoint which includes number of deaths, cardiovascular hospitalizations, stroke, TIA or other thromboembolic events.

    Measured: 42months

  16. Incidence of Persistent AF in Patients With Sick Sinus Syndrome

    To evaluate the incidence of persistent AF in patients with sick sinus syndrome as compared to the one found in the Minerva trial, and characterize the difference between the European and Indian populations. The unit of measure will be number of pts that had persistent AF on the study.

    Measured: 42 months

  17. Efficacy of Atrial ATP Therapies Measured by Number of Successful Termination of AF Events

    To evaluate the efficacy of atrial ATP therapies as a function of the device type (Pacemakers(IPG),Cardiac defibrillators (ICD),Cardiac resynchronization Therapy (CRT-D, CRT-P), and population characteristics (baseline characteristics, implant indications) in optimizing therapy and evaluating the successful termination of AF events, preventing pts from going into persistent or permanent AF, as measured by no of ATP's delivered by device.

    Measured: 42 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Nov 2019
  2. Study start1 Oct 2019
  3. Primary completion15 Jul 2021
  4. Study completion28 Jul 2021

Why it stopped: Sponsors decision to terminate the study based on the current Covid situation which is preventing completion of study milestone.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
79 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04172883
Sponsor's protocol ID
MDT18039
Acronym
MANDATE-AF
Status last verified
Feb 2026
First submitted
28 May 2019
Last updated
27 Feb 2026
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Stewart S, Hart CL, Hole DJ, McMurray JJ. A population-based study of the long-term risks associated with atrial fibrillation: 20-year follow-up of the Renfrew/Paisley study. Am J Med. 2002 Oct 1;113(5):359-64. doi: 10.1016/s0002-9343(02)01236-6.

    PubMed 12401529
  • Go AS, Hylek EM, Phillips KA, Chang Y, Henault LE, Selby JV, Singer DE. Prevalence of diagnosed atrial fibrillation in adults: national implications for rhythm management and stroke prevention: the AnTicoagulation and Risk Factors in Atrial Fibrillation (ATRIA) Study. JAMA. 2001 May 9;285(18):2370-5. doi: 10.1001/jama.285.18.2370.

    PubMed 11343485
  • Camm AJ, Kirchhof P, Lip GY, Schotten U, Savelieva I, Ernst S, Van Gelder IC, Al-Attar N, Hindricks G, Prendergast B, Heidbuchel H, Alfieri O, Angelini A, Atar D, Colonna P, De Caterina R, De Sutter J, Goette A, Gorenek B, Heldal M, Hohloser SH, Kolh P, Le Heuzey JY, Ponikowski P, Rutten FH; ESC Committee for Practice Guidelines. Guidelines for the management of atrial fibrillation: the Task Force for the Management of Atrial Fibrillation of the European Society of Cardiology (ESC). Europace. 2010 Oct;12(10):1360-420. doi: 10.1093/europace/euq350. No abstract available.

    PubMed 20876603
  • Kannel WB, Wolf PA, Benjamin EJ, Levy D. Prevalence, incidence, prognosis, and predisposing conditions for atrial fibrillation: population-based estimates. Am J Cardiol. 1998 Oct 16;82(8A):2N-9N. doi: 10.1016/s0002-9149(98)00583-9.

    PubMed 9809895

Questions about this trial

What is this clinical trial studying?

A study testing Treatment arm in people with Cardiovascular Diseases, run by Medtronic Cardiac Rhythm and Heart Failure at 11 sites in India.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 18 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 27 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in India. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 27 Feb 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of 'Persistent AF' Over Time (time frame: up to 18 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04172883, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Feb 2026; AzTrials last refreshed its copy on 8 Nov 2026.

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