The Bath Ankylosing Spondylitis Metrology Index (BASMI) is an index for measuring the mobility of the axial skeleton in participant affected by ankylosing spondylitis (AS). This index consists of 5 clinical measurements, including lumber side flexion, tragus to wall distance, lumbar flexion, intermalleoar distance and cervical rotation. Individual scores are averaged to give a final score between 0 and 10. A higher BASMI10 score reflects more severe spinal mobility limitation.

The Disease Activity and functional status assessment (DAS) 28 score is a measure of the participant's disease activity calculated using the tender joint count (TJC) [28 joints], swollen joint count (SJC) [28 joints], participant's global assessment of disease activity [visual analog scale: 0 = no disease activity to 100 = maximum disease activity] and the erythrocyte sedimentation rate (ESR) for a total possible score of 0 to approximately 10. Scores below 2.6 indicate best disease control and scores above 5.1 indicate worse disease control. A negative change from Baseline indicated improvement. European League Against Rheumatism (EULAR) Good response: DAS28 less than or equal to (<=) 3.2 or a change from Baseline less than (<) -1.2. EULAR Moderate response: DAS28 greater than (>) 3.2 to <= 5.1 or a change from Baseline < -0.6 to greater than or equal to (>=) -1.2.

The DAPSA score will be calculated by the data collection tool and is the sum of the following: Participant's assessment of pain on visual analog scale (VAS) (in centimeters), Participant's Global Assessment of Disease Activity on VAS, 66 and 68 joint counts for swelling and tenderness, respectively. Joints assessed include the distal interphalangeal (DIP), proximal interphalangeal (PIP), and metacarpophalangeal (MCP) joints of the hands; the wrist, elbow, shoulder, acromioclavicular, sternoclavicular, temporomandibular, hip (excluded for swelling), knee, ankle, and midtarsal joints; and the metatarsophalangeal and PIP joints of the feet. CRP level in milligrams per deciliters (mg/dL). Cutoff values for low and high disease activity are <= 18.5 and >= 45.1 points, 25 respectively, and for remission is <= 3.3 points.

Minimal Disease Activity (MDA) is a state of disease activity deemed a useful target of treatment by both the participant and physician. The goal of the development of this instrument is to "treat to target" to achieve disease remission or low disease activity state. For a participant to achieve MDA, 5 of the following 7 criteria must be met: Tender joint count =<1; Swollen joint count =<1; Psoriasis Area and Severity Index (PASI) =<1 or Body surface area (BSA) =<3; Participant pain VAS =<15; Participant global activity VAS =<20; HAQ =<0.5; Tender enthesial points =<1.

Drug Retention is defined as the time in months in which participants maintain the same therapy.

An adverse event is any untoward medical occurrence in a clinical study that does not necessarily have a causal relationship with the investigational drug under study.

The BASMI is an index for measuring the mobility of the axial skeleton in participant affected by ankylosing spondylitis. This index consists of 5 clinical measurements, including lumber side flexion, tragus to wall distance, lumbar flexion, intermalleoar distance and cervical rotation. Individual scores are averaged to give a final score between 0 and 10. A higher BASMI10 score reflects more severe spinal mobility limitation.

The DAS 28 is a composite score derived from the following 4 measures. The index considers four parameters to obtain the total score: Count the number of swollen joints (out of the 28); Count the number of tender joints (out of the 28); C-reactive protein (CRP) expressed in milligram per milliLitre (mg/mL); Participant's Global Assessment of disease activity.

The DAPSA is a score used to measure disease activity in participant affected by psoriatic arthritis. It comprises: 68 tender and 66 swollen joints count; Participant global assessment of health; Participant pain Visual analogue scale (VAS); C-reactive protein level (milligram per deciLiter [mg/dl]).

The MDA is a state of disease activity deemed a useful target of treatment by both the participant and physician. For a participant to achieve MDA, 5 of the following 7 criteria must be met: Tender joint count less than or equal to (<=) 1; Swollen joint count <= 1; PASI <= 1 or BSA <= 3; Participant pain VAS <= 15; Participant global activity VAS <= 20; Health Assessment Questionnaire (HAQ) <= 0.5; Tender enthesial points <= 1.

The overall BSA affected by psoriasis is estimated based on the palm area of the participant's hand (entire palmar surface or "handprint" which equates to approximately 1 % of total body surface area. The disease severity will be classified using the following categories: mild (BSA less than [<] 3 %), moderate (BSA from 3% to 10%), and severe (BSA more than [>] 10 %).

The BASFI is used to define and monitor physical functioning in participants with ankylosing spondylitis. BASFI is composed by 10 items. Score range is 0-10, with 0 (easy), reflecting no functional impairments, and 10 (impossible), reflecting maximal impairment.

The BASDAI is used to measure participant reported disease activity in participants with ankylosing spondylitis. A numeric response scale (0-10) with "none" and "very severe" is used to answer. The final score ranges from 0 (no disease activity) to 10 (maximal disease activity). A cut off of 4 is used to define active disease.

The HAQ-DI is used to assess the physical functioning of the participant.The participant is required to indicate the degree of difficulty they have experienced, in each 8 items of the questionnaire, in the past week, in a 4 point scale. The responses in each functional area are: 0 = able to do with no difficulty; 1 = able to do with some difficulty; 2 = able to do with much difficulty; and 3 = unable to do. The 10 individual subscale scores are averaged to give a summary score. The range of the final calculates summary score is 0-3 where lower scores are indicative of better functioning and higher score reflects worse function. HAQ-DI scores of 0 to 1 generally represent mild to moderate functional difficulty, 1 to 2 represent moderate to severe functional difficulty, and 2 to 3 indicate severe to very severe limitations of physical function or disability.

The WPAI is a validated, self administered questionnaire that assesses work and activity impairment during the past 7 days. The WPAI-SHP outcomes are expressed as impairment percentages; with higher numbers indicate greater impairment and less productivity, that is, worse outcomes.

The Maastricht Ankylosing Spondylitis Entheses Score (MASES) is a feasible index using to investigate the enthesitis. 13 specific and sensitive sites were examined and a dichotomous 0/1 score is used to value the grading of tenderness.

Number of participants with count of nail lesions will be presented.

The total number of digits of the hands and feet (that is, 0 to 20) with dactylitis will be evaluated.

Fibromyalgia is evaluated by American College of Rheumatology (ACR) 2010 criteria.

The pain VAS is a self-administered assessment used to measure the average pain during the past week. The score ranges between 0 "No pain" to 0 "The Worst Possible Pain".

The Sleep Quality VAS questionnaire provides a measurement of quality of sleep experienced by the participant. This subjective method attempts to measure qualitative aspects of sleep and is easily administered. The score ranges from between 0 "Very Good" to 100 "Very Bad".

The PtGA by VAS measuring the overall way the disease affects the participants at a point in time. The score will be recorded as a single vertical mark on a 100 millimeter (mm) visual analogic scale (VAS), with 0 representing the lowest level of disease activity and 100 representing the highest.