Trial Outcomes & Findings for Prevalence and Incidence of Articular Symptoms and Signs Related to Psoriatic Arthritis in Patients With Psoriasis Severe or Moderate With Adalimumab Treatment (NCT NCT01316224)

Prevalence and Incidence of Articular Symptoms and Signs Related to Psoriatic Arthritis in Patients With Psoriasis Severe or Moderate With Adalimumab Treatment

A participant is said to have PsA if they meet the following criteria: 1. PsA defined by a rheumatologist; or 2. A participant with inflamed joints \>0 and CASPAR score \>=3; or 3. Participant meeting at least one of the two previous definitions.

Signs or symptoms were defined as mentioning at the rheumatologist visit any joint symptoms prior to or during the visit or a total number of inflamed joints greater than 0.

The measure of time from Psoriasis diagnosis to the appearance of PsA signs or symptoms.

The PASI score was used to measure the severity of psoriasis. It combined the assessment of the severity of lesions and the area affected into a single score ranging from 0 (no disease) to 72 (maximal disease).

Percentage of participants with comorbidities (metabolic syndrome, hypertension, diabetes, atherosclerosis, obesity, alcohol and other associated comorbidities) was assessed.

The Short Form-36 was a self-reported questionnaire used to measure the QoL of participants in eight main health dimensions (physical functioning; bodily pain; role limitations due to physical health, personal, and emotional problems; emotional well-being; social functioning; vitality; and general health perception). The score from each health dimension was added together for a QoL score on a scale of 0 - 100; a higher score indicated a better QoL.

The CASPAR criteria permits the diagnosis of PsA in spite of low rheumatoid factor positivity. To be classified as having PsA, a participant must have inflammatory articular disease (joint, spine, entheseal) with greater than or equal to 3 of the following 5 points: evidence of psoriasis (current, history of, or family history of); psoriatic nail dystrophy; a negative RF test result; dactylitis (history of or current); and radiographic evidence of juxa-articular new bone formation. Only current psoriasis (2 points) was weighted more heavily than the other features (1 point). CASPER scores range from 1 to 6, with 6 indicating a more definitive diagnosis of PsA.

The CASPAR criteria permits the diagnosis of PsA in spite of low rheumatoid factor positivity. To be classified as having PsA, a participant must have inflammatory articular disease (joint, spine, entheseal) with greater than or equal to 3 of the following 5 points: evidence of psoriasis (current, history of, or family history of); psoriatic nail dystrophy; a negative RF test result; dactylitis (history of or current); and radiographic evidence of juxa-articular new bone formation. Only current psoriasis (2 points) was weighted more heavily than the other features (1 point).

Pressure and joint manipulation by physical examination on 68 or 66 joints or regions (34 or 32 per body side, hip joints excluded) were assessed for TJC or SJC, respectively. Both joint tenderness and swelling were classified as present ("1"), absent ("0"), replaced ("9"), or no assessment ("NA"). The total TJC or SJC was derived as the sum of the tender and swollen joints; the range for TJC and SJC was 0 - 68 and 0 - 66, respectively; with higher scores indicating worse conditions.

Joint symptoms were evaluated by presence or absence of peripheral arthritis, morning stiffness and participant reported joint symptoms.

The number of new PsA cases were determined by: 1. PsA defined by a rheumatologist; or 2. A participant with inflamed joints \>0 and CASPAR score \>=3; or 3. Participant meeting at least one of the two previous definitions occurring over person time (defined as the overall sum of Psoriasis disease duration without PsA).

This outcome measure was not calculated.