# Diagnosing Heart Failure With Preserved Ejection Fraction in Patients With Unexplained Dyspnea (Diagnose-HFpEF)

> **NCT04688905** · — · ACTIVE_NOT_RECRUITING · sponsor: **University of Leipzig** · enrollment: 30 (actual)

## Conditions studied

- Dyspnea

## Interventions

- **DIAGNOSTIC_TEST:** Invasive hemodynamics of left ventricle via conductance catheter at rest, with exercise and with temporary vena cava occlusion

## Key facts

- **NCT ID:** NCT04688905
- **Lead sponsor:** University of Leipzig
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2020-09-09
- **Primary completion:** 2023-08-04
- **Final completion:** 2026-08-30
- **Target enrollment:** 30 (ACTUAL)
- **Last updated:** 2025-11-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04688905

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04688905, "Diagnosing Heart Failure With Preserved Ejection Fraction in Patients With Unexplained Dyspnea (Diagnose-HFpEF)". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT04688905. Licensed CC0.

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