Nasal spray may prevent post-surgery delirium in seniors
NCT ID NCT07538284
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a nasal spray called dexmedetomidine, taken at night, can help older adults (ages 65-90) sleep and reduce the risk of delirium after major abdominal surgery. 400 participants will be randomly assigned to receive either the drug or a placebo. The goal is to see if this simple approach can prevent confusion and improve recovery.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2/3
Runs two stages together: whether the treatment works, then large-scale confirmation.
- Participants
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About 400 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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Jun 2027
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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65 to 90 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Aged 65-90 years * Scheduled for a major abdominal surgery with estimated surgery time ≥ 2 hours Exclusion Criteria: * Blind, deafness or the inability to speak mandarin * Allergy to dexmedetomidine. * Renal and liver failure requiring dialysis or Child-Pugh score \> 5 * Follow-up difficulties (i.e. active substance abuse, psychotic disorder, homelessness) * Previous major abdominal or cardiac surgery within 1 year of surgical procedure * Chronic therapy with benzodiazepines and/or antipsychotics. Severe deficit due to structural or anoxic brain damage * Body weight \< 35 kg
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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.
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Other studies related to the condition(s) this trial covers.
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