Clinical Trial: A Study To Assess The Efficacy And Safety Of Dutasteride 0.5mg Once Daily For 6 Months In The Treatment Of Male Subjects With Androgenetic Alopecia

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: An Randomised, Double-blind, Placebo-controlled, Parallel Group Study to Assess the Efficacy and Safety of Dutasteride 0.5mg Once Daily for 6 Months in the Treatment of Male Subjects With Androgenetic

Brief Summary: The aim of this Phase III study is to compare the efficacy, safety and tolerability of dutasteride (0.5mg) with placebo for 6 months, in Korean male subjects with androgenetic alopecia in the vertex region, types IIIv, IV and V according to the modified Norwood-Hamilton Classification.

Detailed Summary:
Sponsor: GlaxoSmithKline

Current Primary Outcome: Change From Baseline Hair Growth Assessed by Macrophotographic Technique (Hair Count) in the Vertex at 6 Months. [ Time Frame: Baseline and 6 months ]

The Macrophotographic hair count method marks a 1-inch diameter circular area at the anterior leading edge of the vertex thinning area and then photographed. The photographs are enlarged and converted into dot maps and the dot maps are converted into total hair counts by means of personal computer-based scanners and imaging software.


Original Primary Outcome: Hair growth assessed by macrophotographic technique (hair count) in the vertex at 6 months.

Current Secondary Outcome:

  • Change From Baseline Hair Growth Assessed by Macrophotographic Technique (Hair Count) in the Vertex at 3 Months. [ Time Frame: Baseline and Month 3 ]
    The Macrophotographic hair count method marks a 1-inch diameter circular area at the anterior leading edge of the vertex thinning area and then photographed. The photographs are enlarged and converted into dot maps and the dot maps are converted into total hair counts by means of personal computer-based scanners and imaging software.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment I Have Lost? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index without Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions without photographs concerning their perception of Change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment my Usual Hair Loss Has Slowed Down? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index without Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions without photographs concerning their perception of Change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since Start of Treatment the Overall Appearance (Thickness, Hair Quality, Amount) of the Hair on my Head is? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index without Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions without photographs concerning their perception of Change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment I Have Kept What Hair I Had? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index without Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions without photographs concerning their perception of Change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment, When I Look at my Thinning Area, I Can See? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index with Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions comparing photographs of their hair before treatment and concerning the last week and evaluated the change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment my Hair Now Covers? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index with Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions comparing photographs of their hair before treatment and concerning the last week and evaluated the change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment the Amount of Hair on my Thinning Area Has? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index with Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions comparing photographs of their hair before treatment and concerning the last week and evaluated the change in Hair Growth.
  • Subjects Global Assessment of Hair Regrowth Question: Since the Start of Treatment the Appearance (Thickness, Hair Quality, Amount) of the Thinning Area on my Head is? [ Time Frame: Month 3 and Month 6 ]
    GlaxoSmithKline - Hair Growth Index with Photographs subject assessment of change in hair loss and overall appearance at 3 and 6 months. Subjects answered 4 questions comparing photographs of their hair before treatment and concerning the last week and evaluated the change in Hair Growth.
  • Investigator's Photographic Assessment of Improvement Distribution From Baseline [ Time Frame: Month 3 and Month 6 ]
    Improvement Distribution is based on the number of hairs per centimeters squared by macrophotographic conversion hair count. Score Range -3=greatly decreased to +3=greatly increased. 0=No change.
  • Investigator's Photographic Assessment of Improvements From Baseline Score [ Time Frame: Month 3 and Month 6 ]
    Improvement Distribution Score is based on the number of hairs per centimeters squared by macrophotographic conversion hair count. Score Range: -3 = greatly decreased to +3 = greatly increased. 0 = No change.
  • Panel Assessment of Improvement Distribution From Screening [ Time Frame: Baseline to Month 3 and Baseline to Month 6 ]