Could a simple spray prevent dangerous blood pressure spikes after spinal injury?
NCT ID NCT05635851
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 trial tests whether a nitric oxide spray (glyceryl trinitrate) can prevent dangerous blood pressure spikes during bowel care in people with spinal cord injury. 26 participants will receive either the active spray or a placebo during two at-home bowel care sessions. The study measures blood pressure changes and symptoms to see if the drug is safe and effective in real-world use.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- glyceryl trinitrate (nitric oxide donor) sublingual spray
- What this could lead to
- If it works, this could offer a simple, at-home way to prevent dangerous blood pressure spikes during bowel care for people with spinal cord injury.
- What could go wrong
- This is a small, early-phase trial with only 26 participants, so results may not apply to everyone. The drug may not work as expected or could cause side effects like low blood pressure or headache.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 26 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2026
An estimate. Start dates often move.
- Expected to finish
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Feb 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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19 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * participants must have had a traumatic spinal cord injury at least one year ago * regular bowel care routine * can communicate in English Exclusion Criteria: * cauda equina or conus lesions * currently use ventilator * colostomy, or do not perform regular bowel care * skin breakdown (pressure sores) * cannot communicate in English * under 19 years old * possibly or certainly pregnant * medical/psychiatric condition or substance abuse that is likely to affect ability to complete study * currently using medications containing PDE-5 inhibitors * currently using medications containing GTN * allergy to GTN
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Breathing brief Low-Oxygen bursts may boost sleep apnea treatment
- Pure oxygen tested as a switch for dormant nerves after spinal cord injury
- Spinal stimulation tested to help kids with spinal cord injuries sit taller
- Zapping the spine: a new hope for kids with paralysis?
- Can painless spinal zaps teach injured kids to walk again?