A Study in Male and Female Subjects With Androgenetic Alopecia Treated With ATI-50002 Topical Solution

This is an open-label study designed to evaluate the safety and efficacy of ATI-50002 Topical
Solution in male and female subjects with androgenetic alopecia.

Inclusion Criteria:

Male subjects and non-pregnant, non-nursing female subjects 18-50 years of age with a
clinical diagnosis of androgenetic alopecia.

Subjects willing to agree to have a small circle of hair clipped to approx. 1mm in length
on their balding spot.

Subjects willing to agree to have a permanent dot tattoo applied to their scalp to mark the
center of the identified target area.

Subjects must agree to maintain the same hair style and hair care regimen during the study.

Exclusion Criteria:

Females who are nursing, pregnant, or planning to become pregnant for the duration of the
study and up to 30 days after the last application of study medication.

Clinical diagnosis of alopecia areata or other non AGA forms of alopecia. Scalp hair loss
on the treatment area, due to disease, injury or medical therapy.

Active skin disease of the scalp (such as psoriasis or seborrheic dermatitis) or a history
of skin disease on the scalp that in the opinion of the investigator would interfere with
the study assessments or efficacy or safety. -