# The Effect of Beta-blocker on Chronotropic Response and Cardiorespiratory Fitness in Patients With Atrial Fibrillation

> **NCT05332457** · NA · RECRUITING · sponsor: **National Taiwan University Hospital** · enrollment: 40 (estimated)

## Conditions studied

- Atrial Fibrillation

## Interventions

- **DRUG:** Reduced dosage of beta-blocker

## Key facts

- **NCT ID:** NCT05332457
- **Lead sponsor:** National Taiwan University Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2025-07-01
- **Primary completion:** 2025-07-31
- **Final completion:** 2025-12-31
- **Target enrollment:** 40 (ESTIMATED)
- **Last updated:** 2025-03-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05332457

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05332457, "The Effect of Beta-blocker on Chronotropic Response and Cardiorespiratory Fitness in Patients With Atrial Fibrillation". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT05332457. Licensed CC0.

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