# Sex Differences in Sympathetic Vascular Reactivity at High Altitude

> **NCT05525416** · NA · COMPLETED · sponsor: **University of Alberta** · enrollment: 17 (actual)

## Conditions studied

- Vasodilation
- Vasoconstriction

## Interventions

- **DRUG:** Sodium Nitroprusside
- **DRUG:** Phenylephrine Hydrochloride
- **DRUG:** Phenylephrine Hydrochloride
- **DRUG:** Norepinephrine
- **OTHER:** Isometric Handgrip and Post-Exercise Circulatory Occlusion
- **OTHER:** Rhythmic Handgrip
- **OTHER:** Cold Pressor Test
- **DRUG:** Propranolol Hydrochloride
- **DRUG:** Phentolamine Mesylate

## Key facts

- **NCT ID:** NCT05525416
- **Lead sponsor:** University of Alberta
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-07-28
- **Primary completion:** 2023-02-05
- **Final completion:** 2023-02-05
- **Target enrollment:** 17 (ACTUAL)
- **Last updated:** 2024-09-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05525416

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05525416, "Sex Differences in Sympathetic Vascular Reactivity at High Altitude". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT05525416. Licensed CC0.

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