Sleep hormone melatonin tested as Pre-Surgery calming agent for seniors
NCT ID NCT07036367
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether giving melatonin under the tongue before cataract surgery can reduce anxiety and help older adults relax. Sixty people aged 60 and older will receive either melatonin or a placebo. The goal is to find a safer alternative to standard sedatives that may cause fewer side effects.
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 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Jun 2026
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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60 years and older
- 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: * • Age ≥ 60 years * American Society of Anesthesiologists (ASA) physical status I-III * Scheduled for unilateral cataract surgery under local anesthesia * Ability to understand and complete study-related questionnaires Exclusion Criteria: * • Known allergy or hypersensitivity to melatonin * Chronic use of sedatives, hypnotics, or anxiolytics * History of sleep disorders or psychiatric illness * Visual or hearing impairment that would hinder communication * Emergency surgery or anticipated intraoperative complications
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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 places running it
2 sites in 2 countries. The list below names each one and where it is.
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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.
Contacts and locations
Locations
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Al-Azhar University
NOT_YET_RECRUITINGCairo, Egypt, 11865, Egypt
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Al-Azhar University
RECRUITINGBaghdad, Baghdad Governorate, 10011, Iraq
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- A lens that could let cataract patients see near and far without glasses
- One operation for cataract and glaucoma? eye surgeons test a Two-in-One approach
- Eye drops may shield the cornea after cataract surgery
- A simple blood draw might reveal hidden eye lymphoma
- Can a new lens make glasses obsolete after cataract surgery?
- Can a new lens design sharpen vision after macular surgery?