CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 39 enrolled
Drug / intervention
Phenoxybenzamine +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03176693
NCT03176693Phase 3Completed

Randomized Controlled Trial of Preoperative Alpha Blockade for Pheochromocytoma

University of California, Los Angeles·interventional·Posted Jun 5, 2017·Updated Nov 20, 2023

In Brief

A Phase 3 clinical trial evaluating Phenoxybenzamine and Doxazosin for Pheochromocytoma and Paraganglioma. Completed, enrolled 39 participants across 1 site.

Detailed Summary

Pheochromocytoma is a rare, catecholamine (ex. adrenaline) secreting tumor that requires preoperative alpha blockade to minimize intraoperative hemodynamic instability, thereby reducing intra- and postoperative morbidity and mortality. Phenoxybenzamine is a non-selective alpha blocker that is significantly more expensive and is associated with increased adverse effects in comparison with selective alpha blockers such as doxazosin. Retrospective studies show minimal differences in hemodynamic instability and no differences in postoperative morbidity and mortality between selective vs. non-selective alpha blockers. This study is a randomized controlled trial that will compare hemodynamic instability, morbidity, mortality, cost, and quality of life between patients blocked with phenoxybenzamine vs. doxazosin.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 3CompletedFinished
201820192020202120222023202420252026
First PostedJun 5, 2017
Enrollment StartMay 5, 2017
Primary CompletionJan 31, 2020
Study CompletionOct 10, 2021
TodayJul 2, 2026
Enrollment to primary: 2.7 yearsPosted 9.1 years ago

Interventions

Phenoxybenzaminedrug

Non-selective alpha blocker

Doxazosindrug

Selective alpha blocker