Vehicle cream is a topical formulation applied as a thin film to affected areas.

The Pain NRS is a validated, self-reported, instrument for measurement of itch intensity and subjects will rate the intensity of their pain on an 11-point scale ranging from 0 (no pain) to 10 (worst pain imaginable).

The mTLSS is a validated tool for assessing hand eczema. The scale quantifies the 7 features (erythema, scaling, hyperkeratosis/lichenification, vesiculation, oedema, fissures, and pruritus/pain) of HE (0 = none, 1 = mild, 2 = moderate, and 3 = severe).

The Investigator's Global Assessment for chronic hand eczema (IGA-CHE) is an instrument used in clinical trials to rate the severity of the participant's global chronic hand eczema (CHE) and is based on a 5-point scale ranging from 0 (clear) to 4 (severe). IGA-CHE treatment success (IGA-CHE TS) is defined as an IGA-CHE score of 0 (clear) or 1 (almost clear) with a ≥2-step improvement from baseline.

The Investigator's Global Assessment for chronic hand eczema (IGA-CHE) is an instrument used in clinical trials to rate the severity of the participant's global chronic hand eczema (CHE) and is based on a 5-point scale ranging from 0 (clear) to 4 (severe). IGA-CHE treatment success (IGA-CHE TS) is defined as an IGA-CHE score of 0 (clear) or 1 (almost clear) with a ≥2-step improvement from baseline.

The Pain NRS is a validated, self-reported, instrument for measurement of itch intensity and participants will rate the intensity of their pain on an 11-point scale ranging from 0 (no pain) to 10 (worst pain imaginable).

The Itch NRS is a validated, self-reported, instrument for measurement of itch intensity and participants will rate the intensity of their itch on an 11-point scale ranging from 0 (no itch) to 10 (worst itch imaginable) on a daily basis.

The Pain NRS is a validated, self-reported, instrument for measurement of itch intensity and participants will rate the intensity of their pain on an 11-point scale ranging from 0 (no pain) to 10 (worst pain imaginable) on a daily basis.

The Hand Eczema Severity Index (HECSI) is an instrument used in clinical trials to rate the severity of 6 clinical signs (erythema, infiltration/papulation, vesicles, fissures, scaling, and oedema) and the extent of the lesions in each of the 5 hand regions (fingertips, fingers [except fingertips], palm of hands, back of hands, and wrists) by use of standard scales.

HECSI is an instrument used in clinical trials to rate the severity of 6 clinical signs (erythema, infiltration/papulation, vesicles, fissures, scaling, and oedema) and the extent of the lesions in each of the 5 hand regions (fingertips, fingers [except fingertips], palm of hands, back of hands, and wrists) by use of standard scales.

HECSI is an instrument used in clinical trials to rate the severity of 6 clinical signs (erythema, infiltration/papulation, vesicles, fissures, scaling, and oedema) and the extent of the lesions in each of the 5 hand regions (fingertips, fingers [except fingertips], palm of hands, back of hands, and wrists) by use of standard scales.

The Patient Global Impression of Change (PGIC) is a participants' self-reporting measure that reflects their belief about the efficacy of treatment. The PGIC is a 7-point scale depicting a participant's rating of overall improvement of CHE and will be captured during site visits. It is based on a 7-point scale and the participant will rate each question from the start of treatment as 1-very much improved, 2-much improved, 3-minimally improved, 4-no change, 5-minimally worse, 6-much worse, and 7-very much worse.

The PGIC is a participants' self-reporting measure that reflects their belief about the efficacy of treatment. The PGIC is a 7-point scale depicting a participant's rating of overall improvement of CHE and will be captured during site visits. It is based on a 7-point scale and the participant will rate each question from the start of treatment as 1-very much improved, 2-much improved, 3-minimally improved, 4-no change, 5-minimally worse, 6-much worse, and 7-very much worse.

The PGIC is a participants' self-reporting measure that reflects their belief about the efficacy of treatment. The PGIC is a 7-point scale depicting a participant's rating of overall improvement of CHE and will be captured during site visits. It is based on a 7-point scale and the participant will rate each question from the start of treatment as 1-very much improved, 2-much improved, 3-minimally improved, 4-no change, 5-minimally worse, 6-much worse, and 7-very much worse.

The DLQI is a simple, 10 question (Q) validated quality-of-life questionnaire to measure how much the skin problem has affected the participant. It covers 6 domains including symptoms and feelings (Q1 and Q2), daily activities (Q3 and Q4), leisure (Q5 and Q6), work and school (Q7), personal relationships (Q8 and Q9), and treatment(Q10). The recall Period of this scale is over the last week. Response categories include 0-not at all, 1-a little, 2-a lot, and 3-very much, and unanswered or not relevant responses scored as 0. Scores range from 0 ("no impact on participant's life") to 30 ("extremely large effect on participant's life"), and a 4-point change from Baseline is considered as the minimal clinically important difference threshold. A negative change from Baseline indicates less impact of the skin problem on participant's life.

EQ-5D-5L is a is a validated, self-administered, generic, utility questionnaire wherein participants will rate their current health state based on the following criteria: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

The QOLHEQ is a validated instrument to assess disease specific Health Related Quality of Life (HRQOL) in patients suffering from hand eczema. The QOLHEQ is a disease specific instrument, thereby only assessing impairments caused by hand eczema. It consists out of 30 items which can be summarized according to four domains of HRQOL: Impairments because of (1) symptoms, (2) emotions, (3) limitations in functioning or (4) because of treatment and prevention.

The Work Limitations Questionnaire (WLQ) is a patient self-rated scale designed to assess on the-job impact of chronic health problems and/or treatment. The WLQ consists of 25 items in 4 dimensions: limitations handling time (5 items), physical work demands (6 items), mental interpersonal work demands (9 items), and output demands (5 items). Each item is rated on a 5- point scale from "All of the Time" (score 5) to "None of the Time" (score 0), or "Does Not Apply to My Job". The WLQ Productivity Loss Score is derived from the Global Productivity Index, which is calculated as a weighed sum of the 4 dimensions. Reduction in WLQ Productivity Loss score indicates less work limitation and represents the estimated percentage of productivity loss in the past two weeks due to presenteeism relative to a healthy benchmark sample. WLQ Productivity Loss Score ranges from 0% to 24.9%. Higher percent productivity loss reflects more severe work limitations.

The WPAI:SHP questionnaire assesses both work productivity through absenteeism (i.e., work time missed), presenteeism (i.e., impairment at work or reduced on-the-job effectiveness), and work productivity loss, as well as daily activity impairment (e.g., work around the house, shopping, exercising, childcare, studying) attributable to excess weight. Results of WPAI are expressed as a percentage of impairment from 0 to 100, with higher percentages indicating greater impairment and less productivity. Negative numbers indicate improvement from baseline.

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