Clinical trial Recruiting at 1 site Observational Ages 18 and up

Evaluating cardiac resynchronization therapy effects in adults with congenital heart disease

Official title: Real-World Data on the Effects of Cardiac Resynchronization Therapy in Adult Patients With Congenital Heart Disease

Run by Leiden University Medical Center · NCT06969924 · Data updated 2026-11-12

This study is trying to see if cardiac resynchronization therapy can help adults with congenital heart disease feel better and improve their heart function.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorLeiden University Medical Center
Academic / other
Locations1 site (Leiden, South Holland)
StatusRecruiting
StartedJanuary 1, 2014
Main results expectedDecember 31, 2028
Study endsDecember 31, 2028
Registry record updatedMay 14, 2025
Trial IDNCT06969924 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adult patients with congenital heart disease who have undergone cardiac resynchronization therapy implantation.

Probably not a fit

Patients under 18 years old or those who object to the use of retrospective data will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study investigates the real-world effects of cardiac resynchronization therapy (CRT) on adult patients with congenital heart disease (ACHD). It aims to assess whether CRT improves clinical outcomes such as QRS duration, ventricular function, and functional class in this unique population. The study involves a retrospective cohort of ACHD patients who received CRT from January 2014, analyzing data from electronic health records to identify factors associated with positive therapy responses. The findings will help clarify the efficacy and safety of CRT in ACHD, which is often overlooked in existing guidelines.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into improving treatment outcomes for adults with congenital heart disease through CRT.

How similar studies have gone: While CRT is well-established in acquired heart failure, evidence in ACHD is limited, making this approach relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ACHD patients who underwent CRT implantation

Exclusion Criteria:

* Less than 18 years old on the moment of CRT implantation
* Patient objection to the use of retrospective data

Where it's running

  • Leiden University Medical Center (LUMC)
    Leiden, South Holland, Netherlands
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.