Study Results
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View full resultsBasic Information
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COMPLETED
NA
22 participants
INTERVENTIONAL
2023-03-19
2023-06-13
Brief Summary
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Detailed Description
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After pretreatment with STAR particles (applied to the right or left arm) and aloe gel (used as a control condition in the contralateral arm) a numbing gel will be applied. A Pin-Prick test will be performed to evaluate local anesthesia from the numbing gel; half the participants will be evaluated 10 minutes after application of the numbing gel and the other half will be assessed 20 minutes after the numbing gel is applied. The study team will also assess pain after needle insertion and measure how much water is being lost from the skin using a device called a Vapometer before and after the STAR particle and aloe gel applications. Participants will have follow-up calls 24 hours and 1 week after the visit to ask about any changes to the skin where the STAR particles were applied.
Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Lidocaine-epinephrine-tetracaine (LET) Gel After and Without STAR Particle Application
Children, adolescents, and young adults will receive local anesthesia with lidocaine-epinephrine-tetracaine (LET) gel via different methods on different arms. One arm will have STAR particles used prior to LET gel and the other arm will have aloe gel applied prior to LET gel.
LET Gel after STAR Particle Application (Right or Left Arm)
STAR particles are made of titanium dioxide, a widely used and safe ceramic material found in sunscreens, cosmetics, and paint. The particles vary in concentration and length in order to find the optimal concentration and length. Topical lidocaine (0.5 gm of Lidocaine in LET gel) will be applied immediately after applying a STAR particle preparation to the volar surface of the antecubital fossa.
LET Gel Application without STAR Particle Application (Contralateral Arm)
Topical lidocaine (0.5 gm of Lidocaine in LET gel) will be applied immediately after applying aloe gel (control condition) to the volar surface of the antecubital fossa of the contralateral arm to the one receiving the STAR particle preparation.
Interventions
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LET Gel after STAR Particle Application (Right or Left Arm)
STAR particles are made of titanium dioxide, a widely used and safe ceramic material found in sunscreens, cosmetics, and paint. The particles vary in concentration and length in order to find the optimal concentration and length. Topical lidocaine (0.5 gm of Lidocaine in LET gel) will be applied immediately after applying a STAR particle preparation to the volar surface of the antecubital fossa.
LET Gel Application without STAR Particle Application (Contralateral Arm)
Topical lidocaine (0.5 gm of Lidocaine in LET gel) will be applied immediately after applying aloe gel (control condition) to the volar surface of the antecubital fossa of the contralateral arm to the one receiving the STAR particle preparation.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* In good general health as determined by a medical history
* Willing to provide informed assent with parental consent and follow study requirements
Exclusion Criteria
* Has a plan to move to another location in the next 12 months or foresees any other reason that participation in the study would be disrupted during the next 12 months
* Has skin disorders or skin allergies
* Has any previous allergy or adverse reaction to STAR particle ingredients (Titanium Dioxide)
* Has abnormal (e.g., tattooed) skin at proposed the site(s) of STAR particle application
* Has known neurological conditions that might affect sensory function or perception of pain
* Has any condition (social or medical), which in the opinion of the investigator would make study participation unsafe, would interfere with adherence to the clinical study requirements, or would complicate data interpretation
10 Years
21 Years
ALL
Yes
Sponsors
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Children's Healthcare of Atlanta
OTHER
Emory University
OTHER
Responsible Party
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Eric Felner
Professor of Pediatrics
Principal Investigators
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Eric I Felner, MD, MS
Role: PRINCIPAL_INVESTIGATOR
Emory University
Locations
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Emory Children's Center
Atlanta, Georgia, United States
Countries
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References
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Tadros AR, Prausnitz MR, Felner EI. Rapid local anesthesia in children enhanced by STAR particles: a first-in-humans, randomized clinical trial. Drug Deliv Transl Res. 2025 Jun 23. doi: 10.1007/s13346-025-01899-5. Online ahead of print.
Provided Documents
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Document Type: Study Protocol
Other Identifiers
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STUDY00002928
Identifier Type: -
Identifier Source: org_study_id
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