CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 16 enrolled
Drug / intervention
Acute Intermittent Hypoxia (AIH)other
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/NCT04019522
NCT04019522N/ACompleted

An Exploration of Acute Intermittent Hypoxia as a Tool to Enhance Neural Recovery in Stroke Survivors; a Pilot Safety Study.

Shirley Ryan AbilityLab·interventional·Posted Jul 15, 2019·Updated Apr 7, 2026

In Brief

A clinical study evaluating Acute Intermittent Hypoxia (AIH) for Stroke. Completed, enrolled 16 participants across 1 site.

Detailed Summary

Of the 795,000 people who experience a stroke every year in the US, only a small percentage will achieve full recovery. While current therapies promote strength and endurance, none directly address the unique potential of the brain to reorganize following injury. The goal of this project is to explore the effects of a novel therapy, acute intermittent hypoxia (AIH). During this therapy, individuals receive brief bouts of reduced oxygen levels by inhalation through a face mask. (This is akin to being on top of a tall mountain). In brief exposures, AIH is known to trigger the release of specific proteins that help the brain adapt to oxygen reductions. Published results in people with incomplete spinal cord injury have shown that AIH enhances muscle strength and coordination rather quickly. The research team aims to study the effects of AIH in stroke survivors.

Study Details

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

Timeline

N/ACompletedFinished
2020202120222023202420252026
First PostedJul 15, 2019
Enrollment StartJul 15, 2019
Primary CompletionFeb 1, 2022
Study CompletionJul 1, 2025
TodayJul 2, 2026
Enrollment to primary: 2.5 yearsPosted 7.0 years ago

Interventions

Acute Intermittent Hypoxia (AIH)other

An oxygen monitor will continuously measure and record the fraction of inspired oxygen delivered to the subject. Inspired fraction of oxygen (FiO2) of the gas mixture will be individually adjusted using the valve settings to reach the targeted SpO2. The gas mixtures administered during the four sessions will be 21% O2 (target SpO2 = 95%), 17% O2 (target SpO2 = 92%), 13% O2 (target SpO2 = 87%) and 9% O2 (target SpO2 = 82%).