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NCT03570749 · OUTCOME

Percent Change From Baseline in SALT Score - Phase 3

A Study of Baricitinib (LY3009104) in Participants With Severe or Very Severe Alopecia Areata · Source last updated 2026-04-16

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
LEAST_SQUARES_MEAN
Unit
percent change
Interval / dispersion
Standard Error
Time frame
Baseline, Week 36

What was measured

The SALT uses a visual aid showing the division of the scalp hair into 4 areas with the top of the head constituting 40% of total surface, the posterior/back of head 24%, right side and left side of head 18% each. The percentage of hair loss in each area is determined and is multiplied by the percentage of scalp covered by that area. The total sum of the 4 products of each area will give the SALT score, as developed by the National Alopecia Areata Foundation Working Committee. Only terminal hair is included in the SALT; vellus hair or any fine downy hair is not taken into account in the SALT scoring process. The SALT score will range from 0% to 100, with lower score indicating better health outcomes. Least Squares Mean (LSM) was calculated using analysis of covariance (ANCOVA) with geographic region duration of current episode at baseline (\< 4 years versus ≥4 years), treatment group, and baseline value in the model.

Analysis population: All randomized phase 3 participants with non-missing baseline and at least one post-baseline measurement who had evaluable data for this outcome measure.A modified last observation carried forward (mLOCF) imputation technique was used to replace missing data with the most recent non-missing post-baseline assessment.

Groups in this outcome

Placebo Phase 3

Participants received two placebo tablets administered orally QD.

2 mg Baricitinib Phase 3

Participants received one 2 mg Baricitinib tablet administered orally QD, and one placebo tablet administered orally QD to maintain the blind.

4 mg Baricitinib Phase 3

Participants received one 4 mg Baricitinib tablet administered orally QD, and one placebo tablet administered orally QD to maintain the blind.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Placebo Phase 3185
2 mg Baricitinib Phase 3180
4 mg Baricitinib Phase 3278

Reported measurements

Source class 1
Values in percent change · Interval/dispersion: Standard Error
GroupValueSpreadLowerUpperComment
Placebo Phase 3-8.133.100Not reportedNot reportedNot reported
2 mg Baricitinib Phase 3-31.233.157Not reportedNot reportedNot reported
4 mg Baricitinib Phase 3-45.792.663Not reportedNot reportedNot reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    -30.57
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    -15.63
    dispersion Type
    STANDARD_ERROR_OF_MEAN
    dispersion Value
    3.806
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    param Type
    Mean Difference (Final Values)
    param Value
    -23.10
    statistical Method
    ANCOVA
  2. ci Lower Limit
    -44.24
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    -30.89
    dispersion Type
    STANDARD_ERROR_OF_MEAN
    dispersion Value
    3.447
    group Ids
    1. OG000
    2. OG002
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    param Type
    Mean Difference (Final Values)
    param Value
    -37.65
    statistical Method
    ANCOVA
Complete source fields
analyses
  1. ci Lower Limit
    -30.57
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    -15.63
    dispersion Type
    STANDARD_ERROR_OF_MEAN
    dispersion Value
    3.806
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    param Type
    Mean Difference (Final Values)
    param Value
    -23.10
    statistical Method
    ANCOVA
  2. ci Lower Limit
    -44.24
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    -30.89
    dispersion Type
    STANDARD_ERROR_OF_MEAN
    dispersion Value
    3.447
    group Ids
    1. OG000
    2. OG002
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    param Type
    Mean Difference (Final Values)
    param Value
    -37.65
    statistical Method
    ANCOVA
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        3.100
        value
        -8.13
      2. group Id
        OG001
        spread
        3.157
        value
        -31.23
      3. group Id
        OG002
        spread
        2.663
        value
        -45.79
denoms
  1. counts
    1. group Id
      OG000
      value
      185
    2. group Id
      OG001
      value
      180
    3. group Id
      OG002
      value
      278
    units
    Participants
description
The SALT uses a visual aid showing the division of the scalp hair into 4 areas with the top of the head constituting 40% of total surface, the posterior/back of head 24%, right side and left side of head 18% each. The percentage of hair loss in each area is determined and is multiplied by the percentage of scalp covered by that area. The total sum of the 4 products of each area will give the SALT score, as developed by the National Alopecia Areata Foundation Working Committee. Only terminal hair is included in the SALT; vellus hair or any fine downy hair is not taken into account in the SALT scoring process. The SALT score will range from 0% to 100, with lower score indicating better health outcomes. Least Squares Mean (LSM) was calculated using analysis of covariance (ANCOVA) with geographic region duration of current episode at baseline (\< 4 years versus ≥4 years), treatment group, and baseline value in the model.
dispersion Type
Standard Error
groups
  1. description
    Participants received two placebo tablets administered orally QD.
    id
    OG000
    title
    Placebo Phase 3
  2. description
    Participants received one 2 mg Baricitinib tablet administered orally QD, and one placebo tablet administered orally QD to maintain the blind.
    id
    OG001
    title
    2 mg Baricitinib Phase 3
  3. description
    Participants received one 4 mg Baricitinib tablet administered orally QD, and one placebo tablet administered orally QD to maintain the blind.
    id
    OG002
    title
    4 mg Baricitinib Phase 3
param Type
LEAST_SQUARES_MEAN
population Description
All randomized phase 3 participants with non-missing baseline and at least one post-baseline measurement who had evaluable data for this outcome measure.A modified last observation carried forward (mLOCF) imputation technique was used to replace missing data with the most recent non-missing post-baseline assessment.
reporting Status
POSTED
time Frame
Baseline, Week 36
title
Percent Change From Baseline in SALT Score - Phase 3
type
SECONDARY
unit Of Measure
percent change

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