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RecruitingNCT06312813Updated Feb 18, 2026

Evaluating Use of Topical Imipramine and Amitriptyline in Reducing Ultraviolet B Light-Induced Redness in Patients With Rosacea

A Phase 2 interventional study of Imipramine and Amitriptyline in Rosacea, sponsored by Wright State University. Recruiting at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-18.

Sponsored by Wright State University · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Feb 2024; still recruiting 2 years 8 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
48
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Rosacea is a common skin condition associated with easy blushing and red face; many patients with rosacea react to sunlight with increased redness. The purpose of this study is to determine if the use of a topical medication will help reduce sunlight induced redness and irritation in patients with rosacea.

02

Conditions studied

  • Rosacea

Browse trials for

03

In context

Rosacea

233 studies on the registry are indexed under Rosacea; 23 are open to participants now.

This study's planned enrollment of 48 is below the median of 61 across 200 interventional studies indexed under Rosacea.

Browse Rosacea studies →

Lead sponsor

Wright State University is the lead sponsor of 39 studies on the registry; 13 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 5 (71%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Fitzpatrick Skin Type I - IIII
  • Self-identified rosacea or no history of flushing/blushing for controls
  • Able to provide medical history and list of medications -- control subjects will not be allowed to take medications that are known to be photosensitizers.

Exclusion criteria

Exclusion Criteria:

  • Using imipramine, amitriptyline or any other tricyclic antidepressant (oral or topical)
  • Using topical anti-inflammatory (within 1 week) or systemic agents (e.g. prednisone)
  • Large tattoos in the designated testing areas
  • Tanning bed use within last 3 months
  • Photodynamic Therapy or UCB treatments in past 3 months
  • Female Subjects: pregnant or nursing
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
48 participants (estimated)

Study arms

  • Experimental
    Imipramine and Vehicle

    4% imipramine and vehicle are applied on a 2x2cm2 area of the subject's cheek. The imipramine is applied on one side of the subject's face (cheek) and vehicle is applied on the other side.

    Drug: Imipramine · Drug: Vehicle

  • Experimental
    Amitriptyline and Vehicle

    4% amitriptyline and vehicle are applied on a 2x2cm2 area of the subject's cheek. The amitriptyline is applied on side of the subject's face (cheek) and vehicle is applied on the other side.

    Drug: Amitriptyline · Drug: Vehicle

Interventions

06

What researchers measure

Primary outcomes

  1. Difference in redness of Ultraviolet B induced erythema with 4% imipramine

    Erythema change from baseline with 4% imipramine application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 10 minutes post-treatment

  2. Difference in redness of Ultraviolet B induced erythema with 4% imipramine

    Erythema change from baseline with 4% imipramine application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 60 minutes post-treatment

  3. Difference in redness of Ultraviolet B induced erythema with 4% imipramine

    Erythema change from baseline with 4% imipramine application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 120 minutes post-treatment

  4. Difference in redness of Ultraviolet B induced erythema with 4% imipramine

    Erythema change from baseline with 4% imipramine application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 24 hours post-treatment

  5. Difference in redness of Ultraviolet B induced erythema with 4% amitriptyline

    Erythema change from baseline with 4% amitriptyline application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 10 minutes post-treatment

  6. Difference in redness of Ultraviolet B induced erythema with 4% amitriptyline

    Erythema change from baseline with 4% amitriptyline application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 60 minutes post-treatment

  7. Difference in redness of Ultraviolet B induced erythema with 4% amitriptyline

    Erythema change from baseline with 4% amitriptyline application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 120 minutes post-treatment

  8. Difference in redness of Ultraviolet B induced erythema with 4% amitriptyline

    Erythema change from baseline with 4% amitriptyline application in response to a low level of UVB are measured by using a mexameter device and thermal photography.

    Time frame: 24 hours post-treatment

Secondary outcomes

  1. Tolerability of 4% imipramine on facial skin

    The tolerability of 4% imipramine on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 10 minutes post-treatment

  2. Tolerability of 4% imipramine on facial skin

    The tolerability of 4% imipramine on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 60 minutes post-treatment

  3. Tolerability of 4% imipramine on facial skin

    The tolerability of 4% imipramine on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 120 minutes post-treatment

  4. Tolerability of 4% imipramine on facial skin

    The tolerability of 4% imipramine on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 24 hours post-treatment

  5. Tolerability of 4% amitriptyline on facial skin

    The tolerability of 4% amitriptyline on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 10 minutes post-treatment

  6. Tolerability of 4% amitriptyline on facial skin

    The tolerability of 4% amitriptyline on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 60 minutes post-treatment

  7. Tolerability of 4% amitriptyline on facial skin

    The tolerability of 4% amitriptyline on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 120 minutes post-treatment

  8. Tolerability of 4% amitriptyline on facial skin

    The tolerability of 4% amitriptyline on facial skin at baseline/Day 1 compared to Day 2 is measured by the Visual Analog Scale for pain and itch. \[0= no skin pain/itch; 10 = severe skin pain/itch\]

    Time frame: 24 hours post-treatment

07

Study locations

1 of 1 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Feb 2024 (actual). Primary completion is estimated for Dec 2028, 57 months after the start.

Of 20 phase 2 interventional studies under Rosacea, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 16. This study's planned 57 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 8, 2024
First posted
Mar 15, 2024
StartActual
Feb 27, 2024
Primary completionEst.
Dec 1, 2028
CompletionEst.
Dec 1, 2028
Last update
Feb 18, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06312813
Lead sponsor
Wright State University
Responsible party
Sponsor
First posted
Mar 15, 2024
Start date
Feb 27, 2024
Primary completion
Dec 1, 2028 (estimated)
Completion
Dec 1, 2028 (estimated)
Last update
Feb 18, 2026

Study contacts

Manager Clinical Research Operations
Contact
pturesearch@wrightstatephysicians.org
(937)-245-7500

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Imipramine · Amitriptyline

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