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Side Effects of Q-Switched Ruby Laser for the Treatment of Lentigines in Light and Dark Skin Types

This study has been completed.
Information provided by:
Shahid Beheshti University of Medical Sciences Identifier:
First received: October 10, 2006
Last updated: June 2, 2008
Last verified: June 2008
The purpose of this study is a comparison of efficacy and side effects of Q-switched Ruby laser treatment for solar lentigines in two different skin types II and IV.

Condition Intervention Phase
Solar Lentigines
Device: Q-switched Ruby Laser
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Single Blind
Primary Purpose: Treatment
Official Title: Efficacy and Side Effects of Q-Switched Ruby Laser Treatment of Solar Lentigines in Two Different Fitzpatrick Skin Types II and IV

Further study details as provided by Shahid Beheshti University of Medical Sciences:

Primary Outcome Measures:
  • Clinical Clearance
  • Side Effects

Estimated Enrollment: 90
Study Start Date: November 2005
Estimated Study Completion Date: September 2006
Detailed Description:

It has been widely accepted that dark colored individuals are prone to develop laser induced side effects especially post inflammatory hyperpigmentation(PIH) and it could be a limiting issue in selecting dark colored individuals.

We designed this study to evaluate the difference of efficacy and side effects in light and dark skinned individuals.


Ages Eligible for Study:   up to 80 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Solar Lentigines
  • Fitzpatrick skin type II and IV

Exclusion Criteria:

  • Pregnancy
  • Age above 80
  • Photosensitivity
  • Concern for malignancy
  • Active Infection
  Contacts and Locations
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Please refer to this study by its identifier: NCT00386204

Iran, Islamic Republic of
Skin Research Center, Shohada-e Tajrish Hospital, Shaheed Beheshti Medical University
Tehran, Iran, Islamic Republic of, 19899
Sponsors and Collaborators
Shahid Beheshti University of Medical Sciences
Study Chair: Parviz Toossi, M.D. Shahid Beheshti University of Medical Sciences
  More Information Identifier: NCT00386204     History of Changes
Other Study ID Numbers: src-pts-11073
Study First Received: October 10, 2006
Last Updated: June 2, 2008

Keywords provided by Shahid Beheshti University of Medical Sciences:
Q-switched Ruby laser

Additional relevant MeSH terms:
Pigmentation Disorders
Skin Diseases processed this record on May 24, 2017