A comparison of erythema reaction in two ultraviolet irradiation devices

JRCT ID: jRCTs032190128

Registered date:05/11/2019

Basic Information

• Recruitment status: Complete
• Health condition(s) or Problem(s) studied: Health Condition(s)
• Date of first enrollment: 30/11/2019
• Target sample size: 15
• Study type: Interventional
• Intervention(s): Irradiate at 80, 100, 120, 140, 160, 180, and 200 mJ/cm2, respectively, using ultraviolet therapy equipment at 50 mW/cm2 and 150 mW/cm2

Outcome(s)

• Primary Outcome: Difference in erythema value

Secondary Outcome

1) The difference of erythema (spectrocolorimeter CM-700d)
2) Difference in erythema in dermoscopy images
3) Micropapules in dermoscopy images
4) Observation of small vesicles in dermoscopy images (number)
5) Determination of average MED of each irradiance
6) Determination of post-operative pigmentation (PIH) in dermoscopy images

Key inclusion & exclusion criteria

• Age minimum: >= 20age old
• Age maximum: < 65age old
• Gender: Both

Include criteria

Target patients who meet all the following conditions.
1) Over 20 years old and under 65 years old
2) Those who can agree with the document regarding participation in this examination

Exclude criteria

1) photosensitivity
2) keloid diathesis
3) pregnant or having possibility of pregnancy
4) breast-feeding
5) any skin disorder in upper abdominal skin
6) any tattoo or pigmentation in upper abdominal skin
7) having history of sunburn within 2 months
8) having any medicines causing photosensitivity
9) inappropriate cases

Related Information

• Primary Sponsor: Togawa Yaei
• Source(s) of Monetary Support: JMEC Corporation