# Norepinephrine vs Phenylephrine During General Anesthesia

> **NCT04789330** · PHASE4 · COMPLETED · sponsor: **University of California, San Francisco** · enrollment: 3626 (actual)

## Conditions studied

- Anesthesia
- Surgery
- Hypotension

## Interventions

- **DRUG:** Norepinephrine
- **DRUG:** Phenylephrine

## Key facts

- **NCT ID:** NCT04789330
- **Lead sponsor:** University of California, San Francisco
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-07-01
- **Primary completion:** 2022-04-01
- **Final completion:** 2022-04-01
- **Target enrollment:** 3626 (ACTUAL)
- **Last updated:** 2025-12-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04789330

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04789330, "Norepinephrine vs Phenylephrine During General Anesthesia". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT04789330. Licensed CC0.

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