NCT06004973

Brief Summary

The objective of this study is to find out the best method of applying STAR particles to the skin. STAR particles are very small particles with microneedles on the surface that can increase and create small punctures in the skin. The small punctures should allow for different topical medications to work more effectively. This is important to understand the potential use of STAR particles in future topical medications. This study will not use any medication with active ingredients. The study will include healthy adult participants. The first visit will be to collect medical information and assess eligibility in the study. The second visit will have the application of STAR particles on different areas of the arm, hand, and face with different pressures to determine what the most effective method of application is. The skin will be evaluated after the application, and surveys will be collected on the tolerability of the application.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at P25-P50 for not_applicable healthy

Timeline
Completed

Started Feb 2024

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 18, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 22, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

February 7, 2024

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 7, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 7, 2024

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

February 4, 2026

Completed
Last Updated

February 4, 2026

Status Verified

January 1, 2026

Enrollment Period

9 months

First QC Date

June 18, 2023

Results QC Date

November 7, 2025

Last Update Submit

January 19, 2026

Conditions

Keywords

STAR particlesSkin

Outcome Measures

Primary Outcomes (1)

  • Transepidermal Water Loss (TEWL)

    Trans-epidermal water loss (TEWL) measurement (only for the first 10 participants 1-10) before and after application of STAR particles \[(T0 (before), T20 (after), T30 (after)\].

    Before application, 20 minutes after application, and 30 minutes after application

Secondary Outcomes (3)

  • Sensation After Application of STAR Particles (Part 2 Only)

    Immediately After STAR particles application

  • Evaluate Pain Using the Visual Analog Pain Scale (VAPS) After Application of the STAR Particles (Part 2 Only)

    Immediately After STAR particles application

  • Number or Participants Who Reported Standard Adverse Event (AE)

    Up to 5 days after the STAR particles removal (for a total of 5 days)

Other Outcomes (1)

  • Number of Participants Who Experience Adverse Events Due to Residual STAR Particles

    After STAR particles removal up to 30 days (for a total of 30 days)

Study Arms (2)

STAR Particles application

EXPERIMENTAL

Participants will receive the 8 interventions (different application pressures) plus the control (Site and treatment will not be randomly assigned on the arm) by the investigator.

Device: STAR Particles

Control Application

OTHER

Participants 1 to 10 will receive one control application on the volar side of one forearm. Participants 11 to 20 will receive one control application on the opposite forearm and on the contralateral side of the face.

Device: Gel without STAR Particles

Interventions

A 1.5-gram dose of STAR particles (10% concentration in aloe vera ointment) will be applied to the eight application sites (forearm and hand). Two rubbing cycles (30 and 60 cycles at a minimum of 1 cycle/second) and three pressures (40, 60, and 80 kPa) will be evaluated

STAR Particles application

A 100mg dose of the gel without STAR particles is applied to the control site (the forearm for all participants and, additionally, the face for participants 11-20).

Also known as: Control
Control Application

Eligibility Criteria

Age18 Years - 39 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Adult, 18 - 39 years of age
  • In good general health as determined by a medical history
  • Willing and able to provide informed consent and follow all study requirements
  • Not pregnant and does not desire to become pregnant in the subsequent two months

You may not qualify if:

  • Has a known allergy or sensitivity to aloe vera or alumina
  • Has any skin disorders or skin allergies
  • Has any medical condition that may affect skin or skin sensation
  • Has abnormal (e.g., tattooed) skin at forearms
  • Has known neurological condition affecting sensory function or perception of pain
  • Has inflammatory bowel disease
  • Has applied skin ointment or cream to forearms in the previous 24 hours
  • Has a major congenital or chromosomal abnormality known to affect the skin
  • Has taken pain medication in the last 24 hours
  • Is currently participating in another interventional clinical trial
  • Has previously participated in a STAR particle interventional clinical trial
  • Is pregnant or wishing to be pregnant
  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Emory Children's Center

Atlanta, Georgia, 30322, United States

Location

Results Point of Contact

Title
Eric I Felner, MD, MSCR, Professor of Pediatrics
Organization
Emory University

Study Officials

  • Eric I Felner, MD, MSCR

    Emory University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Medicine

Study Record Dates

First Submitted

June 18, 2023

First Posted

August 22, 2023

Study Start

February 7, 2024

Primary Completion

November 7, 2024

Study Completion

December 7, 2024

Last Updated

February 4, 2026

Results First Posted

February 4, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations