A Study to Evaluate the Safety and Effectiveness of Upadacitinib Tablets in Adult and Adolescent Participants With Severe Alopecia Areata (Up-AA)

A Study to Evaluate the Safety and Effectiveness of Upadacitinib Tablets in Adult and Adolescent Participants With Severe Alopecia Areata

A Phase 3 Randomized, Placebo-controlled, Double-blind Program to Evaluate Efficacy and Safety of Upadacitinib in Adult and Adolescent Subjects With Severe Alopecia Areata

Alopecia areata (AA) is a disease that happens when the immune system attacks hair follicles and causes hair loss. AA usually affects the head and face, but hair loss can happen on any part of the body. The purpose of this study is to assess how safe, effective, and tolerable upadacitinib is in adolescent and adult participants with severe AA. Upadacitinib is an approved drug being investigated for the treatment of AA. In Study 1 and Study 2 Period A, participants are placed in 1 of 3 groups, called treatment arms. Each group receives a different treatment. There is a 1 in 5 chance that participants will be assigned to placebo. In Study 1 and Study 2 Period B, participants originally randomized to upadacitinib dose group in Period A will continue their same treatment in Period B. Participants originally randomized to Placebo in Period A will either remain on placebo in Period B, or be randomized in 1 of 2 groups, based off of their Severity of Alopecia Tool (SALT) score. Participants who complete Study 1 or Study 2, can join Study 3 and may be re-randomized to receive 1 of 2 doses of upadacitinib for up to 108 weeks. Around 1500 participants with severe AA will be enrolled in the study at approximately 240 sites worldwide. Participants will receive oral tablets of either upadacitinib or placebo once daily for up to 160 weeks with the potential of being re-randomized into a different treatment group at Weeks 24 and 52. Participants will be followed up for up to 30 days after last study drug dose. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Participants initially randomized to placebo (Period A) with a SALT score > 20 at Week 24 will be re-randomized to receive upadacitinib Dose A once daily for 28 weeks in Period B.

Participants initially randomized to placebo (Period A) with a SALT score > 20 at Week 24 will be re-randomized to receive upadacitinib Dose B once daily for 28 weeks in Period B.

Participants initially randomized to placebo with a SALT score ≤ 20 at Week 24 will continue on placebo through Week 52.

Participants initially randomized to placebo (Period A) with a SALT score > 20 at Week 24 will be re-randomized to receive upadacitinib Dose A once daily for 28 weeks in Period B.

Participants initially randomized to placebo (Period A) with a SALT score > 20 at Week 24 will be re-randomized to receive upadacitinib Dose B once daily for 28 weeks in Period B.

Participants initially randomized to placebo with a SALT score ≤ 20 at Week 24 will continue on placebo through Week 52.

Participants receiving upadacitinib Dose A with a SALT score > 20 at Week 52 (end of Period B) of Study 1 or Study 2 will dose escalate to upadacitinib Dose B once daily for 108 weeks.

Participants receiving upadacitinib Dose A with a SALT score ≤ 20 at Week 52 (end of Period B) of Study 1 or Study 2 will remain on upadacitinib Dose A once daily for 108 weeks.

Participants who end Period B on upadacitinib Dose B with a with a SALT score > 20 at Week 40 or Week 52 of Study 1 or Study 2 will remain on upadacitinib Dose B once daily for 108 weeks.

Participants who end Period B on upadacitinib Dose B with a with a SALT score ≤ 20 at Week 40 and Week 52 of Study 1 or Study 2 will be re-randomized to receive upadacitinib Dose B once daily for 108 weeks.

Participants who end Period B on upadacitinib Dose B with a with a SALT score ≤ 20 at Week 40 and Week 52 of Study 1 or Study 2 will be re-randomized to receive upadacitinib Dose A once daily for 108 weeks.

The SALT is a global AA severity score based on the combination of extent and density of scalp hair loss. The score is determined by visually defining the amount of terminal hair loss in each of the 4 views of the scalp (left and right side each accounting for 18% of scalp area, the top for 40%, and the back for 24%) and adding these together with a maximum score of 100%.

The SALT is a global AA severity score based on the combination of extent and density of scalp hair loss. The score is determined by visually defining the amount of terminal hair loss in each of the 4 views of the scalp (left and right side each accounting for 18% of scalp area, the top for 40%, and the back for 24%) and adding these together with a maximum score of 100%.

The SALT is a global AA severity score based on the combination of extent and density of scalp hair loss. The score is determined by visually defining the amount of terminal hair loss in each of the 4 views of the scalp (left and right side each accounting for 18% of scalp area, the top for 40%, and the back for 24%) and adding these together with a maximum score of 100%.

Percentage of Participants with the Achievement of Clinician-Reported Outcome (ClinRO) Measure for Eyebrow Hair Loss of 0 or 1

The ClinRO for Eyebrow Hair Loss is a 4-point response scale where 0 = The eyebrows have full coverage and no areas of hair loss and 3 = No notable eyebrows. Responses should have a ≥ 2-point improvement from Baseline among participants with Baseline score ≥ 2.

The ClinRO for Eyebrow Hair Loss is a 4-point response scale where 0 = The eyelashes form a continuous line along the eyelids on both eyes and 3 = No notable eyelashes. Responses should have a ≥ 2-point improvement from Baseline among participants with Baseline score ≥ 2.

The SALT is a global AA severity score based on the combination of extent and density of scalp hair loss. The score is determined by visually defining the amount of terminal hair loss in each of the 4 views of the scalp (left and right side each accounting for 18% of scalp area, the top for 40%, and the back for 24%) and adding these together with a maximum score of 100%.

Percentage of Participants with the Achievement of Patients' Global Impression of Change of Alopecia Areata (PaGIC-AA) Score of 1 "Much Better" or 2 "Moderately Better"

The PaGIC-AA is a single-item measure that asks participants to rate how their alopecia condition has changed overall since the start of the study using a 7-point scale. Responses range from "much better" to "much worse."

Percentage of Participants with the Achievement of Patient-Reported Outcome (PRO) for Scalp Hair Assessment 0/1 with ≥ 2-Point Improvement (Reduction)

The PRO for Scalp Hair Assessment is single item, five-point, categorical response scale that asks respondents to look in the mirror and assess the total area of the scalp with missing hair. Response items range from "No missing hair" to "Nearly all or all" and includes percentage ranges for each category (0%, 1 to 20%, 21 to 49%, 50 to 94%, and 95 to 100%). Responses among participants with baseline score >=3.

The SALT is a global AA severity score based on the combination of extent and density of scalp hair loss. The score is determined by visually defining the amount of terminal hair loss in each of the 4 views of the scalp (left and right side each accounting for 18% of scalp area, the top for 40%, and the back for 24%) and adding these together with a maximum score of 100%.

Inclusion Criteria: Adult individuals < 64 years old at Baseline Visit. Where permitted outside United States (OUS), adolescent individuals who are at least 12 years old at Screening may participate. Diagnosis of severe AA with SALT score ≥ 50 scalp hair loss at Screening and Baseline. Severe AA with no spontaneous scalp hair regrowth over the past 6 months AND no significant scalp hair loss over the past 3 months. Current episode of AA of less than 8 years. Exclusion Criteria: Diagnosis of primarily diffuse type of AA. Diagnosis of other types of alopecia that would interfere with evaluation of AA, including but not limited to female pattern hair loss, male pattern hair loss (androgenetic alopecia) Stage III or greater based on Hamilton-Norwood classification, traction alopecia, lichen planopilaris (LPP), discoid lupus, frontal fibrosing alopecia (FFA), central centrifugal cicatricial alopecia (CCCA), folliculitis decalvans, trichotillomania, and telogen effluvium. Diagnosis of other types of inflammatory scalp, eyebrow, or eyelash disorders that would interfere with evaluation of AA, including but not limited to seborrheic dermatitis, scalp psoriasis, atopic dermatitis (AD), and tinea capitis.

AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols, analyses plans, clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications.

Access to this clinical trial data can be requested by any qualified researchers who engage in rigorous independent scientific research, and will be provided following review and approval of a research proposal and statistical analysis plan and execution of a data sharing statement. Data requests can be submitted at any time after approval in the US and/or EU and a primary manuscript is accepted for publication. For more information on the process, or to submit a request, visit the following link https://www.abbvieclinicaltrials.com/hcp/data-sharing/