Special Investigation in Patients With Psoriasis Vulgaris and Psoriatic Arthritis (All Patients Investigation)

This study was mandated by the Japanese government as an approval condition for Humira in Japan; therefore, definitions of adverse events and seriousness criteria were applicable as specified in the Japanese local standard operating procedures, based on local Japanese regulations. ADRs were defined as adverse events for which the causal relationship with Humira was other than "not related" (ie, "probable," "possible," or "unclear"). The count of participants with AEs presented in this table includes serious and nonserious AEs. The count of participants with discontinuations due to AEs includes those who discontinued due to an AE plus other reasons. Please see Safety section for further details regarding adverse events.

The Physician's Global Assessment (PGA) is a 6-point scale used to measure the severity of disease at the time of the physician's evaluation of the participant. The degree of overall lesion severity was evaluated using the following categories:

• 0 / Clear (plaque elevation=none, scaling=none, erythema=hyperpigmentation, pigmented macules, diffuse faint pink or red coloration);
• 1 / Minimal (plaque elevation=possible but difficult to ascertain whether there is a slight elevation above normal skin, scaling=surface dryness with some white coloration, erythema=up to moderate);
• 2 / Mild (plaque elevation=slight, scaling=fine, erythema=up to moderate);
• 3 / Moderate (plaque elevation=moderate, scaling=coarser, erythema=moderate);
• 4 / Severe (plaque elevation=marked, scaling=coarse, erythema=severe);
• 5 / Very Severe (plaque elevation=very marked, scaling=very coarse, erythema=very severe).

The Physician's Global Assessment (PGA) is a 6-point scale used to measure the severity of disease at the time of the physician's evaluation of the participant. The degree of overall lesion severity was evaluated using the following categories:

• 0 / Clear (plaque elevation=none, scaling=none, erythema=hyperpigmentation, pigmented macules, diffuse faint pink or red coloration);
• 1 / Minimal (plaque elevation=possible but difficult to ascertain whether there is a slight elevation above normal skin, scaling=surface dryness with some white coloration, erythema=up to moderate);
• 2 / Mild (plaque elevation=slight, scaling=fine, erythema=up to moderate);
• 3 / Moderate (plaque elevation=moderate, scaling=coarser, erythema=moderate);
• 4 / Severe (plaque elevation=marked, scaling=coarse, erythema=severe);
• 5 / Very Severe (plaque elevation=very marked, scaling=very coarse, erythema=very severe).

The Physician's Global Assessment (PGA) is a 6-point scale used to measure the severity of disease at the time of the physician's evaluation of the participant. The degree of overall lesion severity was evaluated using the following categories:

• 0 / Clear (plaque elevation=none, scaling=none, erythema=hyperpigmentation, pigmented macules, diffuse faint pink or red coloration);
• 1 / Minimal (plaque elevation=possible but difficult to ascertain whether there is a slight elevation above normal skin, scaling=surface dryness with some white coloration, erythema=up to moderate);
• 2 / Mild (plaque elevation=slight, scaling=fine, erythema=up to moderate);
• 3 / Moderate (plaque elevation=moderate, scaling=coarser, erythema=moderate);
• 4 / Severe (plaque elevation=marked, scaling=coarse, erythema=severe);
• 5 / Very Severe (plaque elevation=very marked, scaling=very coarse, erythema=very severe).

The Physician's Global Assessment (PGA) is a 6-point scale used to measure the severity of disease at the time of the physician's evaluation of the participant. The degree of overall lesion severity was evaluated using the following categories:

• 0 / Clear (plaque elevation=none, scaling=none, erythema=hyperpigmentation, pigmented macules, diffuse faint pink or red coloration);
• 1 / Minimal (plaque elevation=possible but difficult to ascertain whether there is a slight elevation above normal skin, scaling=surface dryness with some white coloration, erythema=up to moderate);
• 2 / Mild (plaque elevation=slight, scaling=fine, erythema=up to moderate);
• 3 / Moderate (plaque elevation=moderate, scaling=coarser, erythema=moderate);
• 4 / Severe (plaque elevation=marked, scaling=coarse, erythema=severe);
• 5 / Very Severe (plaque elevation=very marked, scaling=very coarse, erythema=very severe).

PASI is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (plaque thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The score ranges from 0 (no psoriasis) to 72 (very severe psoriasis).

PASI is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (plaque thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The score ranges from 0 (no psoriasis) to 72 (very severe psoriasis).

PASI75 is defined as at least a 75% reduction in PASI (Psoriasis Area and Severity Index) score compared with the Baseline PASI score. PASI scores range from 0 (best) to 72 (worst), with the highest score representing complete erythroderma of the severest degree. The percent decrease in score is calculated as (Week 0 PASI score minus Week 16 PASI score) divided by Week 0 PASI score.

PASI75 is defined as at least a 75% reduction in PASI (Psoriasis Area and Severity Index) score compared with the Baseline PASI score. PASI scores range from 0 (best) to 72 (worst), with the highest score representing complete erythroderma of the severest degree. The percent decrease in score is calculated as (Week 0 PASI score minus Week 24 PASI score) divided by Week 0 PASI score.

PASI90 is defined as at least a 90% reduction in PASI (Psoriasis Area and Severity Index) score compared with the Baseline PASI score. PASI scores range from 0 (best) to 72 (worst), with the highest score representing complete erythroderma of the severest degree. The percent decrease in score is calculated as (Week 0 PASI score minus Week 16 PASI score) divided by Week 0 PASI score.

PASI90 is defined as at least a 90% reduction in PASI (Psoriasis Area and Severity Index) score compared with the Baseline PASI score. PASI scores range from 0 (best) to 72 (worst), with the highest score representing complete erythroderma of the severest degree. The percent decrease in score is calculated as (Week 0 PASI score minus Week 24 PASI score) divided by Week 0 PASI score.

Dermatology Life Quality Index (DLQI) score is a participant-reported outcome consisting of a set of 10 questions regarding the degree to which the participant's skin has affected certain behaviors and quality of life over the last week. Responses to each are: very much (score of 3), a lot (score of 2), a little (score of 1), or not at all (score of 0). The DLQI score ranges from 0 (best) to 30 (worst); the higher the score, the more quality of life is impaired.

Dermatology Life Quality Index (DLQI) score is a participant-reported outcome consisting of a set of 10 questions regarding the degree to which the participant's skin has affected certain behaviors and quality of life over the last week. Responses to each are: very much (score of 3), a lot (score of 2), a little (score of 1), or not at all (score of 0). The DLQI score ranges from 0 (best) to 30 (worst); the higher the score, the more quality of life is impaired.

Participants assessed their pain due to psoriatic arthritis in the past week, on a single-line Visual Analog Scale (VAS) from 0 (no pain) to 100 (pain as bad as it could be).

Participants assessed their pain due to psoriatic arthritis in the past week, on a single-line Visual Analog Scale (VAS) from 0 (no pain) to 100 (pain as bad as it could be).

Participants assessed their pain due to psoriatic arthritis in the past week, on a single-line Visual Analog Scale (VAS) from 0 (no pain) to 100 (pain as bad as it could be).

DAS28-4 (ESR) is calculated using the number of tender and swollen joints (out of 28 counted), erythrocyte sedimentation rate (ESR), and the patient's global assessment of disease activity via the visual analog scale (VAS). The calculated range of DAS28-4 is 0 to 10. A score less than 2.6 indicates clinical remission, a score of 2.6 to 3.2 indicates low disease activity, a score of 3.2 to less than 5.1 indicates moderate disease activity, and a score of 5.1 or greater indicates high disease activity.

DAS28-4 (ESR) is calculated using the number of tender and swollen joints (out of 28 counted), erythrocyte sedimentation rate (ESR), and the patient's global assessment of disease activity via the visual analog scale (VAS). The calculated range of DAS28-4 is 0 to 10. A score less than 2.6 indicates clinical remission, a score of 2.6 to 3.2 indicates low disease activity, a score of 3.2 to less than 5.1 indicates moderate disease activity, and a score of 5.1 or greater indicates high disease activity.

DAS28-4 (ESR) is calculated using the number of tender and swollen joints (out of 28 counted), erythrocyte sedimentation rate (ESR), and the patient's global assessment of disease activity via the visual analog scale (VAS). The calculated range of DAS28-4 is 0 to 10. A score less than 2.6 indicates clinical remission, a score of 2.6 to 3.2 indicates low disease activity, a score of 3.2 to less than 5.1 indicates moderate disease activity, and a score of 5.1 or greater indicates high disease activity.

DAS28-4 (CRP) is calculated using the number of tender and swollen joints (out of 28 counted), C-reactive protein (CRP) level, and the patient's global assessment of disease activity via the visual analog scale (VAS). The calculated range of DAS28-4 is 0 to 10. A score less than 2.6 indicates clinical remission, a score of 2.6 to 3.2 indicates low disease activity, a score of 3.2 to less than 5.1 indicates moderate disease activity, and a score of 5.1 or greater indicates high disease activity.

DAS28-4 (CRP) is calculated using the number of tender and swollen joints (out of 28 counted), C-reactive protein (CRP) level, and the patient's global assessment of disease activity via the visual analog scale (VAS). The calculated range of DAS28-4 is 0 to 10. A score less than 2.6 indicates clinical remission, a score of 2.6 to 3.2 indicates low disease activity, a score of 3.2 to less than 5.1 indicates moderate disease activity, and a score of 5.1 or greater indicates high disease activity.

DAS28-4 (CRP) is calculated using the number of tender and swollen joints (out of 28 counted), C-reactive protein (CRP) level, and the patient's global assessment of disease activity via the visual analog scale (VAS). The calculated range of DAS28-4 is 0 to 10. A score less than 2.6 indicates clinical remission, a score of 2.6 to 3.2 indicates low disease activity, a score of 3.2 to less than 5.1 indicates moderate disease activity, and a score of 5.1 or greater indicates high disease activity.

Overall response rating, according to investigator's subjective clinical opinion. The level of overall improvement rating was categorized as "markedly improved," "improved," "not changed," or "not assessable," comparing clinical conditions at Week 24 or at discontinuation with Baseline conditions.