# The Effect and Safety of Omitting Preoperative Alpha-adrenergic Blockade for Normotensive Pheochromocytoma

> **NCT05702944** · PHASE4 · RECRUITING · sponsor: **Seoul National University Hospital** · enrollment: 24 (estimated)

## Conditions studied

- Pheochromocytoma
- Paraganglioma
- Adrenalectomy; Status
- Adrenergics Causing Adverse Effects in Therapeutic Use

## Interventions

- **DRUG:** Phenoxybenzamine

## Key facts

- **NCT ID:** NCT05702944
- **Lead sponsor:** Seoul National University Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2023-01-18
- **Primary completion:** 2027-08-31
- **Final completion:** 2027-12-31
- **Target enrollment:** 24 (ESTIMATED)
- **Last updated:** 2025-06-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05702944

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05702944, "The Effect and Safety of Omitting Preoperative Alpha-adrenergic Blockade for Normotensive Pheochromocytoma". Retrieved via AI Analytics 2026-06-29 from https://api.ai-analytics.org/clinical/NCT05702944. Licensed CC0.

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