Participants with active and progressive PsA who have responded inadequately to disease-modifying anti-rheumatic drugs will receive induction infusions of Remicade at weeks 0, 2, and 6 given in a dosage due to the decision of the physicians. A maximum of 6 maintenance infusions will be administered with the dosage and interval due to the discretion of the physicians. Whole observation period cannot exceed 102 weeks per participant if the maximal therapy interval of 16 weeks as defined in the Summary of Product Characteristics (SPC) is taken into consideration.

Induction infusions of Remicade will be administered at weeks 0, 2, and 6 given in a dosage due to the decision of the physicians. A maximum of 6 maintenance infusions will be administered with the dosage and interval due to the discretion of the physicians.

The mean time interval measured in days between Infliximab infusions in participants during the maintenance therapy (between infusion 3/4, 4/5, 5/6, 6/7, 7/8, 8/9) following induction therapy.

The median time interval measured in days between Infliximab infusions in participants during the maintenance therapy (between infusion 3/4, 4/5, 5/6, 6/7, 7/8, 8/9) following induction therapy.

The average dose per infusion measured in milligrams/killogram (mg/kg) in participants receiving induction therapy and subsequent maintenance therapy (Infusions 1-3 were induction therapy and infusions 4-9 were maintenance therapy for a total of 9 consecutive infusions).

The median dose per infusion measured in mg/kg in participants receiving induction therapy and subsequent maintenance therapy (Infusions 1-3 were induction therapy and infusions 4-9 were maintenance therapy for a total of 9 consecutive infusions).

The average overall dose of all infusions among all Infliximab-naive participants measured in mg/kg.

Participants with active and progressive PsA who have responded inadequately to disease-modifying anti-rheumatic drugs received induction intravenous (IV) infusions of Infliximab at weeks 0, 2, and 6 given in a dosage due to the decision of the physicians and in the usual manner in accordance to the term of the applicable marketing authorization. Then, a maximum of 6 maintenance infusions were administered with the dosage and interval due to the discretion of the physicians. According to the European Summary of Product Characteristics (SPC), Infliximab 5 mg/kg is given as an IV infusion over a 2-hour period followed by additional 5 mg/kg infusion doses at 2 and 6 weeks after the first infusion, then every 8 weeks thereafter.

Mean age of participants was assessed in 163 out of 178 enrolled participants. A total of 163 participants received at least one dose of Infliximab.

The mean time interval measured in days between Infliximab infusions in participants during the maintenance therapy (between infusion 3/4, 4/5, 5/6, 6/7, 7/8, 8/9) following induction therapy.

N= number of Infliximab-naive participants that received induction & maintenance therapy.

Out of 152 Infliximab-naive participants who were treated, 94 participants received induction therapy (Infliximab at weeks 0, 2, and 6), 83 participants received induction therapy and subsequent maintenance therapy (maximum of 6 maintenance infusions).

Participants with active and progressive PsA who have responded inadequately to disease-modifying anti-rheumatic drugs received induction intravenous (IV) infusions of Infliximab at weeks 0, 2, and 6 given in a dosage due to the decision of the physicians and in the usual manner in accordance to the term of the applicable marketing authorization. Then, a maximum of 6 maintenance infusions were administered with the dosage and interval due to the discretion of the physicians. According to the European Summary of Product Characteristics (SPC), Infliximab 5 mg/kg is given as an IV infusion over a 2-hour period followed by additional 5 mg/kg infusion doses at 2 and 6 weeks after the first infusion, then every 8 weeks thereafter.