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Table 3 Changes in treatment group from starting treatment for patients treated with monotherapy or combination therapy

From: Real-world health outcomes in adults with moderate-to-severe psoriasis in the United States: a population study using electronic health records to examine patient-perceived treatment effectiveness, medication use, and healthcare resource utilization

Starting treatment groupa

New treatment group

Percentage switched

n (%)

Median (days)b

IQR

Topical, n = 44,603

Phototherapy

1613 (3.6)

48.0

0.0–296.0

Oral Systemic

2232 (5.0)

139.0

14.0–327.3

Biologic

2841 (6.4)

135.0

15.0–283.0

Oral Systemic + Biologic

9 (0.0)

30.0

0.0–48.0

Multiple Switch

11,927 (26.7)

79.0

7.0–243.0

No Switch

25,981 (58.2)

327.0

174.8–365.0

Phototherapy, n = 5248

Topical

2438 (46.5)

84.0

33.0–185.0

Oral Systemic

19 (0.4)

113.0

53.0–149.0

Biologic

18 (0.3)

79.0

44.3–142.5

Oral Systemic + Phototherapy

45 (0.9)

56.0

5.0–239.0

Biologic + Phototherapy

17 (0.3)

76.0

21.0–189.0

Other Interventions

665 (12.7)

35.0

3.0–97.0

Multiple Switch

726 (13.8)

98.0

45.0–182.0

No Switch

1320 (25.2)

160.0

55.0–350.7

Oral Systemic, n = 7116

Topical

1751 (24.6)

105.0

21.0–219.0

Oral Systemic

7 (0.1)

0.0

0.0–111.0

Biologic

6 (0.1)

34.5

7.0–134.8

Oral Systemic + Phototherapy

19 (0.3)

2.0

0.0–166.5

Oral Systemic + Biologic

73 (1.0)

35.0

0.0–100.0

Other Interventions

445 (6.3)

33.0

0.0–136.0

Multiple Switch

2459 (34.6)

117.0

45.0–215.5

No Switch

2356 (33.1)

159.0

61.0–299.1

Biologic, n = 11,767

Topical

1857 (15.8)

191.0

83.0–290.2

Oral Systemic

5 (0.0)

317.0

0.0–342.2

Biologic

5 (0.0)

42.0

39.0–87.0

Biologic + Phototherapy

15 (0.1)

7.0

0.0–204.9

Oral Systemic + Biologic

80 (0.7)

204.8

39.5–302.5

Other Interventions

800 (6.8)

0.0

0.0–186.6

Multiple Switch

4669 (39.7)

112.0

15.0–227.0

No Switch

4336 (36.9)

238.0

139.0–319.8

Oral Systemic + Phototherapy, n = 146

Topical

10 (6.9)

52.5

36.5–141.5

Phototherapy

10 (6.9)

165.0

146.8–240.6

Oral Systemic

14 (9.6)

88.5

31.0–132.8

Multiple Switch

99 (67.8)

90.0

40.5–156.0

No Switch

13 (8.9)

54.0

20.0–144.0

Biologic + Phototherapy, n = 65

Biologic

9 (12.0)

91.0

28.0–227.0

Multiple Switch

56 (74.7)

70.0

38.8–148.0

Oral Systemic + Biologic, n = 350

Oral Systemic

18 (5.1)

81.5

3.8–210.5

Biologic

54 (15.2)

144.5

49.8–227.0

Multiple Switch

237 (66.8)

94.0

35.0–189.0

No Switch

41 (11.6)

140.1

48.0–298.5

Oral Systemic + Biologic + Phototherapy, n = 5

Multiple Switch

5 (100.0)

137.0

109.0–196.0

Other Interventions, n = 13,200

Topical

1782 (13.5)

25.5

0.0–140.0

Phototherapy

408 (3.1)

0.0

0.0–0.0

Oral Systemic

491 (3.7)

0.0

0.0–86.0

Biologic

1488 (11.3)

12.0

0.0–158.3

Multiple Switch

4835 (36.6)

13.0

0.0–102.5

No Switch

4196 (31.8)

265.0

115.9–365.0

  1. IQR interquartile range
  2. aPatient numbers provided for starting treatment as documented in EMA for the study period
  3. bFor patients tracked in EMA prior to the study initiation date, their first visit date was captured and time on treatment was normalized to account for overall time documented in EMA