Condition: Spinal Cord Injuries (SCI) · Sponsor: University of Florida
Spinal cord injury (SCI) disrupts neural pathways to respiratory motor neurons, diminishing breathing capacity and airway defense (e.g., cough). Indeed, respiratory impairment is a leading cause of infection, re-hospitalization and death after SCI. There is a critical need for new strategies to restore breathing ability and airway defense in people with SCI. Acute intermittent hypoxia (AIH) - repetitive exposure to brief episodes of low inspired oxygen - is a promising strategy to restore breathing capacity by promoting spinal neuroplasticity. Exciting outcomes in \>12 SCI trials completed to date demonstrate that AIH improves human respiratory and limb function. Unfortunately, \~40% of individuals exhibit minimal response to AIH, making it essential to 1) optimize AIH protocols to maximize functional benefits; and 2) identify genetic biomarkers distinguishing those most/least likely to benefit from AIH-based treatments. The purpose of the pilot study, to be conducted in a small sample of participants with sub-acute SCI (2 weeks to 6 months post injury), is to preliminarily compare the effects of two intermittent hypoxia protocols. Since AIH-induced plasticity may be induced via serotonin or adenosine-driven mechanisms and these pathways compete and inhibit each other, each protocol favors a distinct mechanistic pathway. Our long-term objective is to test the hypothesis that a longer duration (i.e., augmented) hypoxia protocol, favoring adenosine mechanisms, enhances respira…
This description comes directly from the study's public registry record.
Emily J Fox, PT, DPT, MHS, PhD · 904-742-2500 · ejfox@phhp.ufl.edu
Hannah J Snyder, M.S. · 904-345-6910 · Hannah.Snyder@brooksrehab.org
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Source record: clinicaltrials.gov/study/NCT07002437