Healthy Volunteers
healthy people welcome
at San Francisco, California and other locations
study started
completion around



Alopecia areata is the loss of hair in patches that can proceed to loss of all hair (alopecia totalis or universalis). The purpose of the registry is to collect patient information and blood samples from people with alopecia areata.

Official Title

Alopecia Areata Registry and Immunogenetic Mechanisms


Alopecia areata is a condition in which hair is lost either from part of the scalp, all of the scalp, or the entire body, and it affects 1% to 2% of the population. It is thought to be an autoimmune disease and in some cases the disease is hereditary. The Alopecia Areata Registry will collect information and blood samples from clinically well-characterized patients with these three forms of alopecia areata: alopecia partialis (patchy loss of the scalp hair), alopecia totalis (total loss of all scalp hair), and alopecia universalis (complete loss of all hair everywhere on the body). This will be a collection of patients in multi-generational families, twins, single patients with patchy, persistent transient alopecia areata or long-standing alopecia totalis/universalis and with controls (persons unaffected and not related to alopecia patients). Information from these patients will be used to search the human genome for disease-associated loci and/or genes. Researchers interested in doing pathophysiology or treatment studies of this disease will also be able to contact patients having the appropriate form of the disease for the studies in question.

Patients who have been diagnosed with alopecia areata by a dermatologist will be eligible for the registry. Patients will fill out an information form online ( Patients who have a family history or specific types of alopecia will be invited to participate in a more detailed questionnaire and physical exam and have blood samples drawn.


Alopecia Areata, Alopecia Totalis, Alopecia Universalis, Autoimmune Hair Loss, Alopecia Partialis, Baldness, Autoimmunity, Hair, Alopecia


Inclusion Criteria

Accepts Health Volunteers: Non blood-related individuals who are unaffected with alopecia areata and do not live in the same household with alopecia areata patient.


  • UCSF
    San Francisco California 94143 United States
  • University of Colorado - UCHSC - Health Science Center at Fitzsimons
    Aurora Colorado 80010-7163 United States


in progress, not accepting new patients
Start Date
Completion Date
M.D. Anderson Cancer Center
more information on the Alopecia Areata Registry National Alopecia Areata Foundation (NAAF) official website
Study Type
Expecting 3100 study participants
Last Updated