# Preoperative Alpha Blockade for Pheochromocytoma

> **NCT03176693** · PHASE3 · COMPLETED · sponsor: **University of California, Los Angeles** · enrollment: 39 (actual)

## Conditions studied

- Pheochromocytoma
- Paraganglioma

## Interventions

- **DRUG:** Phenoxybenzamine
- **DRUG:** Doxazosin

## Key facts

- **NCT ID:** NCT03176693
- **Lead sponsor:** University of California, Los Angeles
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-05-05
- **Primary completion:** 2020-01-31
- **Final completion:** 2021-10-10
- **Target enrollment:** 39 (ACTUAL)
- **Last updated:** 2023-11-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03176693

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03176693, "Preoperative Alpha Blockade for Pheochromocytoma". Retrieved via AI Analytics 2026-05-29 from https://api.ai-analytics.org/clinical/NCT03176693. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*