METABolic Deterioration in HTX Determines Outcomes (METAB-HTX)

Heinrich-Heine University, Duesseldorf

Status

Enrolling

Conditions

Heart Transplantation

Study type

Observational

Funder types

Other

Identifiers

NCT07372820

METAB-HTX

Details and patient eligibility

About

METAB-HTX is a prospective, longitudinal cohort study evaluating cardiac and systemic metabolism in heart transplant recipients.

Full description

Bankground:

Heart Transplantation (HTS) is the treatment of choice for advanced heart failure, yet long-time survival rates require further improvement. Recent studies highlight obesity, type 2 diabetes, renal dysfunction, and hepatic impairment as key contributors to post-transplant mortality. Furthermore, critical questions persist in understanding the optimal metabolic surveillance post-HTX, the direct association between metabolic dysregulation and cardiac dysfunction, inter-organ interactions linking metabolic decline to hepatic/renal impairment and the timing of therapeutic strategies.

Therefore: METAB-HTX study aims to address these open questions, hypothesizing that metabolic deterioration post-HTX is associated with impaired cardiac function and survival.

Study Design:

The study employs advanced multi-modal phenotyping to investigate interactions between cardiac function, metabolic dysregulation, and systemic organ dysfunction.

Cardiac Phenotyping:

Imaging: Serial echocardiography, cardiac MRI (cMRI), and magnetic resonance spectroscopy (MRS) for myocardial structure, perfusion, and metabolic profiling.
Vascular Evaluation: Coronary angiography to detect macro- and microvascular coronary allograft vasculopathy (CAV).
Rejection Monitoring: Protocol-driven endomyocardial biopsies for histopathological grading.

Metabolic phenotyping:

Serial oral glucose tolerance tests, homeostasis model assessment, type 2 diabetes endotyping and muscle biopsies.
Advanced lipid panels, HDL functional assays and plasma membrane lipid fluidity analyses.
MRI/MRS-based quantification of adipose tissue distribution and ectopic fat deposition.

Systemic Organ Evaluation:

renal and liver function.

Molecular and Multi-Omics Integration:

Myocardial Energy Metabolism, Genomic/Transcriptomic Profiling, Thromoboinflammation and Neoplasia Risk.

This innovative study aims to bridge critical gaps in understanding post-transplant metabolic pathophysiology, potentially refining surveillance protocols and guiding targeted therapies to improve long-term survival through precision medicine strategies

Enrollment

270 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria