Can an allergy drug replace lidocaine for stitching cuts?
NCT ID NCT06910241
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether diphenhydramine (an allergy medicine) works as well as lidocaine for numbing simple cuts that need stitches. About 100 adults in the emergency room will receive one of the two medicines and rate their pain before and after the procedure. The goal is to see if diphenhydramine is a good alternative for people who cannot use lidocaine.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 100 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 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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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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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: * Lacerations requiring one layer of sutures * Lacerations appropriate for repair by emergency physicians Exclusion Criteria: * Active bleeding from laceration * Complex lacerations requiring multiple layers * Lacerations to be repaired by a specialist service * Patients with allergies to either diphenhydramine or lidocaine * Laceration repairs would benefit from the use of epinephrine as an additive to the local anesthetic
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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
1 site. 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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Bethesda Hospital East
RECRUITINGBoynton Beach, Florida, 33435, United States