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Hair Counts From Vertical and Horizontal Sections of Scalp Biopsy SPecimens in Thai Population With Alopecia (ThaiScalpBx)

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ClinicalTrials.gov Identifier: NCT01651689
Recruitment Status : Unknown
Verified July 2012 by Rattapon Thuangtong, Siriraj Hospital.
Recruitment status was:  Enrolling by invitation
First Posted : July 27, 2012
Last Update Posted : July 27, 2012
Information provided by (Responsible Party):
Rattapon Thuangtong, Siriraj Hospital

Brief Summary:
Hair disorders, expecialy scarring alopecia were diagnosed by scalp biopsy specimens in horizontal and vertical sections.(1-4) Data on hair density in Thais are lacking, although in Asians have more fewer hairs than whites.(5-7)Howevery, previous study from East Asian just had only one study and the data was more differently from West Asian and whites. Then this study was performed to evaluate hair density in Thais, and compared to previous study.

Condition or disease

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Study Type : Observational
Estimated Enrollment : 50 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Hair Counts From Vertical and Horizontal Sections of Scalp Biopsy SPecimens in Thai Population With Alopecia
Study Start Date : October 2010
Estimated Primary Completion Date : April 2013
Estimated Study Completion Date : May 2013

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Biopsy

Scalp biopsy
Subjects are on scadule list for hair transplantation in Siriraj hospital. Scalp biopsy with punch biopsy No.4 Scalp biopsy by punch biopsy No.4 at occipital area was done in subjects who have hair transplantaion.

Biospecimen Retention:   Samples Without DNA
scalp biopsy specimen

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Thai patients who have alopecia and on scadule for hair transplantation

Inclusion Criteria:

  • Thai
  • Age >= 18 years
  • Diagnosis alopecia and on list for hair transplantation in Siriraj hospital

Exclusion Criteria:

  • Alopecia areata or positive hair pulling test
  • Underlying disease : DM, chronic renal failure, chronic liver disease

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01651689

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Siriraj hospital
Bangkok, Thailand, 10700
Sponsors and Collaborators
Siriraj Hospital
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Principal Investigator: Rattapon Thuangtong, MD Department of Dermatology, Siriraj hospital, Faculty of Medicine, Mahidol University, Thailand
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Responsible Party: Rattapon Thuangtong, Assistant Professor, Siriraj Hospital
ClinicalTrials.gov Identifier: NCT01651689    
Other Study ID Numbers: SirirajH-003
553/2553(EC3) ( Registry Identifier: 553/2553(EC3) )
First Posted: July 27, 2012    Key Record Dates
Last Update Posted: July 27, 2012
Last Verified: July 2012
Keywords provided by Rattapon Thuangtong, Siriraj Hospital:
Scalp biopsy
Hair count
Vertical section
Horizontal section
Additional relevant MeSH terms:
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Alopecia Areata
Hair Diseases
Skin Diseases
Pathological Conditions, Anatomical