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ATI-501

Phase 2

Alopecia | Small molecule | Other |Aclaris Therapeutics, Inc.|Last Updated: Sep 16, 2020

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment87
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03594227ATI-501 Oral Suspension Compared to Placebo in Subjects With Alopecia Areata, Alopecia Universalis or Alopecia TotalisPHASE2 COMPLETED 87Jun 11, 2018Jun 18, 2019Sep 16, 202025 United States
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Study Endpoints
Primary Endpoints
Percent Change From Baseline in the Severity of Alopecia Tool (SALT) Score at Week 24
Baseline-Week 24

The Severity of Alopecia Tool (SALT) score is a physician administered scale measuring the amount of scalp without any terminal hair assessed by the investigator. Possible scores range from 0 (no scalp hair loss) to 100 (complete scalp hair loss). A negative change in the SALT score over time represents hair regrowth by adding the percentage hair loss in the various areas (i.e. top, back, each side) of the scalp. The primary efficacy variable was the percent change from baseline in SALT score at Week 24. This was calculated as the mean of the changes from Baseline (Visit 2) SALT score to Week 24 (Visit 10) SALT score, divided by Baseline SALT score and expressed as a percentage.

Secondary Endpoints
Percent Change From Baseline in the Alopecia Density and Extent Score (ALODEX) at Week 24
Baseline-Week 24
Mean Change From Baseline in the Severity of Alopecia Tool (SALT) Score at Week 24
Baseline-Week 24
Mean Change From Baseline in the Alopecia Density and Extent (ALODEX) Score at Week 24
Baseline-Week 24
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeOTHER
Treatment Arms
ArmTypeDescription
400mg BID (Low dose)ACTIVE_COMPARATORATI-501 low dose - oral administration
600mg BID (Mid dose)ACTIVE_COMPARATORATI-501 mid dose - oral administration
800mg BID (High dose)ACTIVE_COMPARATORATI-501 high dose - oral administration
PlaceboPLACEBO_COMPARATORPlacebo - oral administration
Interventions
NameTypeDescription
ATI-501 400mg BID (Low dose)DRUGATI-501 400mg BID oral low dose for oral administration
ATI-501 600mg BID (Mid dose)DRUGATI-501 600mg BID oral mid dose for oral administration
ATI-501 800mg BID (High dose)DRUGATI-501 800mg BID high dose for oral administration
PlaceboDRUGPlacebo - oral administration
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersYes
Study Sites25

Inclusion Criteria: Subjects must meet the following criteria to be eligible for participation in the study: 1. Able to comprehend and willing to sign an Informed Consent Form (ICF). 2. Male or non-pregnant, non-nursing female ≥ 18 years old at the time of informed consent. 3. Have a clinical diag...

Countries:United States
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