Image

Comparison of CRT-D and CRT-DX Systems (CRT-NEXT)

Recruiting
18 years of age
Both
Phase N/A

Powered by AI

Overview

The principal objective is to test non-inferiority of the CRT-DX system as compared to a conventional CRT-D system, in terms of the combined endpoint of mortality, hospitalizations due cardiovascular causes, any complication leading to loss of lead functionality, in the subset of patients without evidence of sinus dysfunction on optimal therapy.

Description

Resting heart rate is strongly associated with incident worsening Heart Failure (HF) and mortality. Current devices for cardiac resynchronization (CRT-D) normally provide atrio-ventricular (AV) sequential pacing modes during resynchronization, but the best pacing programming strategy is not clear.

On the one hand a basic rate of 50 to 70 bpm (optionally with some rate-responsive function) could be considered for therapy up-titration, specifically betablockers; on the other hand, increasing pacing rates may partially reduce benefits from resynchronization, reducing filling time and contractility reservoir.

The Pegasus investigation is the only large randomized investigation comparing DDD with 70 bpm basic rate to DDD(R) @40 bpm. Results showed no difference in investigation endpoints, including mortality and HF-hospitalization.

These results may support the use of a device implementing both a CRT function and a right ventricular single-lead with and an atrial sensing dipole (CRT-DX system). This system can track ventricular pacing and resynchronization following atrial sensing, even if it cannot provide atrial pacing support. It should be assessed whether such limitation is counterbalanced by the advantages related to the reduced number of necessary leads, with simplified implantation and less complications.

The objective of the investigation is to assess whether atrial pacing support is really necessary in the subset of patients with indication to CRT-D and no evidence of sinus dysfunction on optimal therapy. The investigation will test the hypothesis that a CRT-DX system is not inferior to a conventional CRT-D system in this class of subjects.

Eligibility

Inclusion Criteria:

  1. Male and female patients ≥ 18 years old
  2. Patients willing to participate in the investigation and signing the Patient Informed Consent (PIC) Form;
  3. Indication to CRT-D implant according to current ESC Guidelines on cardiac pacing and cardiac resynchronization therapy
  4. Sinus rhythm at time of implant;
  5. Optimized medical therapy according to current ESC Guidelines
  6. Rest heart rate (HR) >45 bpm at baseline ECG, with betablocker therapy at optimal medical dosage; or, if rest HR<45 bpm: maximum heart rate at the 6- minute walking test >85 bpm.

Exclusion Criteria:

  1. Any indication to atrial pacing according to current guidelines;
  2. Both: resting heart rate <45 bpm at baseline ECG, with betablocker therapy at optimal medical dosage and maximum heart rate at the 6-minute walking test <85 bpm;
  3. NYHA Class IV;
  4. Permanent Atrial Fibrillation
  5. Replacement of/upgrading from previously implanted pacing system;
  6. Dialysis patients;
  7. Pregnant or breast-feeding women.

Study details

Heart Failure, Cardiac Resynchronization Therapy

NCT03587064

Associazione Portatori Dispositivi Impiantabili Cardiaci

25 January 2024

Step 1 Get in touch with the nearest study center
Entire World
Results (undefined sites found)
    loading...
  • United States+1
  • United Kingdom+44
  • Afghanistan (‫افغانستان‬‎)+93
  • Albania (Shqipëri)+355
  • Algeria (‫الجزائر‬‎)+213
  • American Samoa+1
  • Andorra+376
  • Angola+244
  • Anguilla+1
  • Antigua and Barbuda+1
  • Argentina+54
  • Armenia (Հայաստան)+374
  • Aruba+297
  • Ascension Island+247
  • Australia+61
  • Austria (Österreich)+43
  • Azerbaijan (Azərbaycan)+994
  • Bahamas+1
  • Bahrain (‫البحرين‬‎)+973
  • Bangladesh (বাংলাদেশ)+880
  • Barbados+1
  • Belarus (Беларусь)+375
  • Belgium (België)+32
  • Belize+501
  • Benin (Bénin)+229
  • Bermuda+1
  • Bhutan (འབྲུག)+975
  • Bolivia+591
  • Bosnia and Herzegovina (Босна и Херцеговина)+387
  • Botswana+267
  • Brazil (Brasil)+55
  • British Indian Ocean Territory+246
  • British Virgin Islands+1
  • Brunei+673
  • Bulgaria (България)+359
  • Burkina Faso+226
  • Burundi (Uburundi)+257
  • Cambodia (កម្ពុជា)+855
  • Cameroon (Cameroun)+237
  • Canada+1
  • Cape Verde (Kabu Verdi)+238
  • Caribbean Netherlands+599
  • Cayman Islands+1
  • Central African Republic (République centrafricaine)+236
  • Chad (Tchad)+235
  • Chile+56
  • China (中国)+86
  • Christmas Island+61
  • Cocos (Keeling) Islands+61
  • Colombia+57
  • Comoros (‫جزر القمر‬‎)+269
  • Congo (DRC) (Jamhuri ya Kidemokrasia ya Kongo)+243
  • Congo (Republic) (Congo-Brazzaville)+242
  • Cook Islands+682
  • Costa Rica+506
  • Côte d’Ivoire+225
  • Croatia (Hrvatska)+385
  • Cuba+53
  • Curaçao+599
  • Cyprus (Κύπρος)+357
  • Czech Republic (Česká republika)+420
  • Denmark (Danmark)+45
  • Djibouti+253
  • Dominica+1
  • Dominican Republic (República Dominicana)+1
  • Ecuador+593
  • Egypt (‫مصر‬‎)+20
  • El Salvador+503
  • Equatorial Guinea (Guinea Ecuatorial)+240
  • Eritrea+291
  • Estonia (Eesti)+372
  • Eswatini+268
  • Ethiopia+251
  • Falkland Islands (Islas Malvinas)+500
  • Faroe Islands (Føroyar)+298
  • Fiji+679
  • Finland (Suomi)+358
  • France+33
  • French Guiana (Guyane française)+594
  • French Polynesia (Polynésie française)+689
  • Gabon+241
  • Gambia+220
  • Georgia (საქართველო)+995
  • Germany (Deutschland)+49
  • Ghana (Gaana)+233
  • Gibraltar+350
  • Greece (Ελλάδα)+30
  • Greenland (Kalaallit Nunaat)+299
  • Grenada+1
  • Guadeloupe+590
  • Guam+1
  • Guatemala+502
  • Guernsey+44
  • Guinea (Guinée)+224
  • Guinea-Bissau (Guiné Bissau)+245
  • Guyana+592
  • Haiti+509
  • Honduras+504
  • Hong Kong (香港)+852
  • Hungary (Magyarország)+36
  • Iceland (Ísland)+354
  • India (भारत)+91
  • Indonesia+62
  • Iran (‫ایران‬‎)+98
  • Iraq (‫العراق‬‎)+964
  • Ireland+353
  • Isle of Man+44
  • Israel (‫ישראל‬‎)+972
  • Italy (Italia)+39
  • Jamaica+1
  • Japan (日本)+81
  • Jersey+44
  • Jordan (‫الأردن‬‎)+962
  • Kazakhstan (Казахстан)+7
  • Kenya+254
  • Kiribati+686
  • Kosovo+383
  • Kuwait (‫الكويت‬‎)+965
  • Kyrgyzstan (Кыргызстан)+996
  • Laos (ລາວ)+856
  • Latvia (Latvija)+371
  • Lebanon (‫لبنان‬‎)+961
  • Lesotho+266
  • Liberia+231
  • Libya (‫ليبيا‬‎)+218
  • Liechtenstein+423
  • Lithuania (Lietuva)+370
  • Luxembourg+352
  • Macau (澳門)+853
  • Madagascar (Madagasikara)+261
  • Malawi+265
  • Malaysia+60
  • Maldives+960
  • Mali+223
  • Malta+356
  • Marshall Islands+692
  • Martinique+596
  • Mauritania (‫موريتانيا‬‎)+222
  • Mauritius (Moris)+230
  • Mayotte+262
  • Mexico (México)+52
  • Micronesia+691
  • Moldova (Republica Moldova)+373
  • Monaco+377
  • Mongolia (Монгол)+976
  • Montenegro (Crna Gora)+382
  • Montserrat+1
  • Morocco (‫المغرب‬‎)+212
  • Mozambique (Moçambique)+258
  • Myanmar (Burma) (မြန်မာ)+95
  • Namibia (Namibië)+264
  • Nauru+674
  • Nepal (नेपाल)+977
  • Netherlands (Nederland)+31
  • New Caledonia (Nouvelle-Calédonie)+687
  • New Zealand+64
  • Nicaragua+505
  • Niger (Nijar)+227
  • Nigeria+234
  • Niue+683
  • Norfolk Island+672
  • North Korea (조선 민주주의 인민 공화국)+850
  • North Macedonia (Северна Македонија)+389
  • Northern Mariana Islands+1
  • Norway (Norge)+47
  • Oman (‫عُمان‬‎)+968
  • Pakistan (‫پاکستان‬‎)+92
  • Palau+680
  • Palestine (‫فلسطين‬‎)+970
  • Panama (Panamá)+507
  • Papua New Guinea+675
  • Paraguay+595
  • Peru (Perú)+51
  • Philippines+63
  • Poland (Polska)+48
  • Portugal+351
  • Puerto Rico+1
  • Qatar (‫قطر‬‎)+974
  • Réunion (La Réunion)+262
  • Romania (România)+40
  • Russia (Россия)+7
  • Rwanda+250
  • Saint Barthélemy+590
  • Saint Helena+290
  • Saint Kitts and Nevis+1
  • Saint Lucia+1
  • Saint Martin (Saint-Martin (partie française))+590
  • Saint Pierre and Miquelon (Saint-Pierre-et-Miquelon)+508
  • Saint Vincent and the Grenadines+1
  • Samoa+685
  • San Marino+378
  • São Tomé and Príncipe (São Tomé e Príncipe)+239
  • Saudi Arabia (‫المملكة العربية السعودية‬‎)+966
  • Senegal (Sénégal)+221
  • Serbia (Србија)+381
  • Seychelles+248
  • Sierra Leone+232
  • Singapore+65
  • Sint Maarten+1
  • Slovakia (Slovensko)+421
  • Slovenia (Slovenija)+386
  • Solomon Islands+677
  • Somalia (Soomaaliya)+252
  • South Africa+27
  • South Korea (대한민국)+82
  • South Sudan (‫جنوب السودان‬‎)+211
  • Spain (España)+34
  • Sri Lanka (ශ්‍රී ලංකාව)+94
  • Sudan (‫السودان‬‎)+249
  • Suriname+597
  • Svalbard and Jan Mayen+47
  • Sweden (Sverige)+46
  • Switzerland (Schweiz)+41
  • Syria (‫سوريا‬‎)+963
  • Taiwan (台灣)+886
  • Tajikistan+992
  • Tanzania+255
  • Thailand (ไทย)+66
  • Timor-Leste+670
  • Togo+228
  • Tokelau+690
  • Tonga+676
  • Trinidad and Tobago+1
  • Tunisia (‫تونس‬‎)+216
  • Turkey (Türkiye)+90
  • Turkmenistan+993
  • Turks and Caicos Islands+1
  • Tuvalu+688
  • U.S. Virgin Islands+1
  • Uganda+256
  • Ukraine (Україна)+380
  • United Arab Emirates (‫الإمارات العربية المتحدة‬‎)+971
  • United Kingdom+44
  • United States+1
  • Uruguay+598
  • Uzbekistan (Oʻzbekiston)+998
  • Vanuatu+678
  • Vatican City (Città del Vaticano)+39
  • Venezuela+58
  • Vietnam (Việt Nam)+84
  • Wallis and Futuna (Wallis-et-Futuna)+681
  • Western Sahara (‫الصحراء الغربية‬‎)+212
  • Yemen (‫اليمن‬‎)+967
  • Zambia+260
  • Zimbabwe+263
  • Åland Islands+358

FAQs

Learn more about clinical trials

What is a clinical trial?

A clinical trial is a study designed to test specific interventions or treatments' effectiveness and safety, paving the way for new, innovative healthcare solutions.

Why should I take part in a clinical trial?

Participating in a clinical trial provides early access to potentially effective treatments and directly contributes to the healthcare advancements that benefit us all.

How long does a clinical trial take place?

The duration of clinical trials varies. Some trials last weeks, some years, depending on the phase and intention of the trial.

Do I get compensated for taking part in clinical trials?

Compensation varies per trial. Some offer payment or reimbursement for time and travel, while others may not.

How safe are clinical trials?

Clinical trials follow strict ethical guidelines and protocols to safeguard participants' health. They are closely monitored and safety reviewed regularly.
Add a private note
  • abc Select a piece of text.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.