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NCT01124513 · ClinicalTrials.gov registry record · NA
Melanin Index in Those With Fitzpatrick Skin Phototypes I-VI
A NA study, sponsored by Northwestern University.
- Completed
- Registry status
- NA
- Development phase
- 270
- Enrollment target
NCT01124513 is a NA study that has completed, run by Northwestern University. The registered enrollment target is 270 participants.
The verdict
NCT01124513, a NA study, has completed, sponsored by Northwestern University.
- COMPLETED
- Registry status
- NA
- Development phase
- 270 participants
- Enrollment target
Study Summary
The "gold standard" method of assessing skin pigmentation is spectrophotometry; however, even as early as 1961 the potential for confounding by dilatation of blood vessels was recognized. (Monash 1961) Manual compression was used to express the blood from the field being measured. The red reflectance captured by reflectance spectrophotometer introduced an uncontrollable variable when measuring the tanning /pigmentation response of skin tone/color. Room temperature induced increased or decreased blood flow through the skin, which altered the findings by spectrophotometer. Other potentially confounding variables that changed blood flow were: recent exercise, and the flushing/blushing for emotional reasons. Since these conditions were difficult to reliably control on the sun exposed extremities, spectrophotometry was not a practical method to assess change in melanin over time as an outcome measure for efficacy of sun protection. Digital imaging with videodermatoscopy utilizing a portable device that is supported by a laptop computer, provides a high resolution digital image for analysis. (EasyScan) As described by Yamamoto et al (2008), applying the Image J freeware to quantify the pigmentation in the digital image holds promise as a practical objective method to reliably assess skin tones based on the melanin content in a non invasive manner. With standardization, the software and hardware may quantify the constitutive pigment in the sun protected skin as the melanin index.
Interventions
- PROCEDURE Induced Erythema
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 270 participants |
| Start Date | 2010-05 |
| Est. Completion | 2010-12 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT01124513
The ClinicalTrials.gov registry entry for NCT01124513 describes a study currently listed as completed, categorized as NA. The registered enrollment target is 270 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Northwestern University, which has 1,209 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 1 intervention - of which Induced Erythema is the first listed.
NCT01124513 reports 0 study locations.
Frequently Asked Questions
What is clinical trial NCT01124513 about?
NCT01124513 is a clinical study titled "Melanin Index in Those With Fitzpatrick Skin Phototypes I-VI". The "gold standard" method of assessing skin pigmentation is spectrophotometry; however, even as early as 1961 the potential for confounding by dilatation of blood vessels was recognized. (Monash 1961) Manual compression was used to express the blood from the field being measured. The red reflectanc...
What is the current status of trial NCT01124513?
This trial is currently completed. It is a NA study. The enrollment target is 270 participants. The study started on 2010-05. Estimated completion is 2010-12.
What interventions are being tested in trial NCT01124513?
The interventions under investigation include: Induced Erythema (PROCEDURE).
Who is sponsoring clinical trial NCT01124513?
This trial is sponsored by Northwestern University, which has 1,209 total clinical trials registered on ClinicalTrials.gov.
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