Oral, Tablet

≥75% improvement in total body Vitiligo Area Scoring Index

VNS is a participant reported outcome measure on a scale of 1-5, 1- more noticeable, 4 - a lot less noticeable, and 5- no longer noticeable.

Defined as adverse events reported for the first time or worsening of a pre-existing event after first dose of study drug.

≥50% improvement in facial Vitiligo Area Scoring Index.

≥75% improvement in facial Vitiligo Area Scoring Index.

≥90% improvement in facial Vitiligo Area Scoring Index.

≥50% improvement in total body Vitiligo Area Scoring Index.

≥75% improvement in total body Vitiligo Area Scoring Index.

≥90% improvement in total body Vitiligo Area Scoring Index.

Global score of vitiligo severity for the face. Scores range from 0 (clear) to 5 (severe vitiligo).

Global score of vitiligo severity for the face. Scores range from 0 (clear) to 5 (severe vitiligo).

Global score of vitiligo severity for the entire body. Scores range from 0 (clear) to 5 (severe vitiligo).

Global score of vitiligo severity for the entire body. Scores range from 0 (clear) to 5 (severe vitiligo).

F-PaGIC-V is an assessment of improvement of vitiligo on the face by the participant. It is a 7-point scale ((1) Very much improved, (2) Much improved, (3) Minimally improved, (4) No change, (5) Minimally worse, (6) Much worse, or (7) Very much worse).

F-PaGIC-V is an assessment of improvement of vitiligo on the face by the participant. It is a 7-point scale ((1) Very much improved, (2) Much improved, (3) Minimally improved, (4) No change, (5) Minimally worse, (6) Much worse, or (7) Very much worse).

T-PaGIC-V is an assessment of improvement of vitiligo on the total body by the participant. It is a 7-point scale ((1) Very much improved, (2) Much improved, (3) Minimally improved, (4) No change, (5) Minimally worse, (6) Much worse, or (7) Very much worse).

T-PaGIC-V is an assessment of improvement of vitiligo on the total body by the participant. It is a 7-point scale ((1) Very much improved, (2) Much improved, (3) Minimally improved, (4) No change, (5) Minimally worse, (6) Much worse, or (7) Very much worse).

Participants will answer how well the color of the treated skin matches the normal skin on a scale of 1-5, 1 being excellent to 5 being very poor.

VitiQoL is a 15-item QoL assessment that asks participants to rate various aspects of their condition during the past month using a 7-point scale ("Not at all" to "All of the time").

HADS is a 14-item questionnaire that assesses the levels of anxiety and depression that a participant is currently experiencing. There are 7 questions each for measuring anxiety and for measuring depression, with 4 possible responses to each question (responses are scored as 0, 1, 2, or 3).