Table 2. Dupilumab Efficacy.
End Point | Placebo (n = 83) | Dupilumab, 300 mg | ||
---|---|---|---|---|
Every 8 wk (n = 84) | Every 4 wk (n = 86) | Weekly or Every 2 wk (n = 169) | ||
Coprimary end points | ||||
Percent change in EASI score from SOLO baseline: difference between SOLO-CONTINUE baseline and week 36, LS mean (SE) | −21.67 (3.13) | −6.84 (2.43)a | −3.84 (2.28)a | −0.06 (1.74)a |
Patients with EASI-75 at week 36 among patients with EASI-75 at SOLO-CONTINUE baseline, No./total No. (%) | 24/79 (30.4) | 45/82 (54.9)b | 49/84 (58.3)a | 116/162 (71.6)a |
Key secondary end points | ||||
Among patients with IGA score of 0 or 1 at SOLO-CONTINUE baseline, No./total No. (%) | ||||
Patients with IGA score maintained within 1 point of baseline at week 36 | 18/63 (28.6) | 32/64 (50.0)c | 41/66 (62.1)a | 89/126 (70.6)a |
Patients with IGA score of 0 or 1 at week 36 | 9/63 (14.3) | 21/64 (32.8)c | 29/66 (43.9)a | 68/126 (54.0)a |
Patients with increase of ≥3 in Peak Pruritus NRS score from SOLO-CONTINUE baseline to week 35 among patients with SOLO-CONTINUE baseline score ≤7, No./total No. (%) | 56/80 (70.0) | 45/81 (55.6) | 41/83 (49.4)c | 57/168 (33.9)a |
Other secondary end pointsd | ||||
Percent change in EASI scores from SOLO-CONTINUE baseline, LS mean (SE) | −6.61 (0.80) | −1.75 (0.74)a | −1.37 (0.74)a | −0.09 (0.51)a |
Patients with EASI-50 at week 36 among patients with EASI-50 at SOLO-CONTINUE baseline, No./total No. (%) | 33/83 (39.8) | 46/84 (54.8) | 52/86 (60.5)c | 124/169 (73.4)a |
Percent change in Peak Pruritus NRS score from SOLO baseline: difference between SOLO-CONTINUE baseline and week 35, LS mean (SE) | −35.6 (4.3) | −16.7 (4.1)a | −8.6 (4.0)a | 0.1 (3.1)a |
Time to first event of IGA score ≥2 among patients with IGA score of 0 or 1 at SOLO-CONTINUE baseline | ||||
No. of patients with an event | 60 | 52 | 50 | 85 |
No. of patients censored | 3 | 12 | 16 | 41 |
No. of days | ||||
Mean (SD) | 76.0 (62.02) | 112.2 (85.98) | 105.0 (89.14) | 139.7 (99.95) |
Median (95% CI) | 57 (56-58) | 85 (59-113) | 80 (55-85) | 114 (85-169) |
Hazard ratio vs placebo (95% CI) | NA | 0.63 (0.43 to 0.92) | 0.71 (0.49 to 1.05) | 0.45 (0.32 to 0.64) |
Patients with IGA scores increased to 3 or 4 at week 36 among patients with IGA score of 0 or 1 at SOLO-CONTINUE baseline, No./total No. (%) | 42/63 (66.7) | 31/64 (48.4)e | 23/66 (34.8)a | 33/126 (26.2)a |
Percent change in SCORAD from SOLO baseline: difference between SOLO-CONTINUE baseline and week 36, LS mean (SE) | −28.97 (3.68) | −10.42 (2.99)a | −2.21 (2.74)a | −0.33 (2.09)a |
Percent BSA affected: change from SOLO-CONTINUE baseline, LS mean (SE) | −9.16 (1.64) | −2.74 (1.53)f | −1.74 (1.46)a | 1.27 (1.04)a |
Change from SOLO-CONTINUE baseline, LS mean (SE) | ||||
POEM | −7.0 (0.90) | −2.8 (0.78)a | −0.8 (0.73)a | 0.3 (0.56)a |
DLQI | −3.1 (0.52) | −1.5 (0.46)c | −0.3 (0.48)a | 0.2 (0.33)a |
HADS | −0.8 (0.60) | −0.7 (0.52) | −0.2 (0.54) | 0.8 (0.39)c |
Annualized event rate of flares from SOLO-CONTINUE baseline through week 36g,h | ||||
Total No. of flares | 62 | 46 | 38 | 36 |
Total patient-years followed | 54.7 | 56.9 | 58.2 | 112.1 |
Adjusted annualized rate (95% CI) | 0.75 (0.47-1.21) | 0.59 (0.36-0.96) | 0.44 (0.26-0.73) | 0.21 (0.13-0.35) |
Relative risk vs placebo (95% CI) | NA | 0.78 (0.45 to 1.36) | 0.58 (0.33 to 1.03) | 0.28 (0.17 to 0.49)a |
Well-controlled weeks before rescue medication use, mean (SD), %i | 40.9 (30.35) | 53.2 (32.95) | 53.3 (35.86) | 63.0 (32.36) |
Annualized event rate of skin infection treatment-emergent adverse events (excluding herpetic infections) through week 36 | ||||
Total No. of events | 10 | 7 | 1 | 4 |
Total patient-years of follow up | 54.7 | 56.9 | 58.2 | 112.1 |
Adjusted annualized rate (95% CI) | 0.12 (0.04-0.33) | 0.09 (0.03-0.25) | 0.01 (0.001-0.097) | 0.02 (0.007-0.083) |
Relative risk vs placebo (95% CI) | NA | 0.71 (0.23-2.23) | 0.10 (0.01-0.83)c | 0.20 (0.06-0.72)c |
Post hoc end pointsd | ||||
Percent change in EASI score from SOLO baseline to SOLO-CONTINUE week 36, subgroups by original dose regimen in SOLO, LS mean (SE) | ||||
Originally taking dupilumab, 300 mg, every 2 wk | ||||
No. | 39 | 39 | 41 | 80 |
LS mean (SE), % | −72.73 (5.68) | −82.80 (4.12) | −85.35 (4.08) | −90.75 (2.96)j |
Originally taking dupilumab, 300 mg, weekly | ||||
No. | 44 | 45 | 45 | 89 |
LS mean (SE), % | −69.32 (3.38) | −87.04 (3.24)a | −88.70 (3.00)a | −91.88 (2.13)a |
Percent change in EASI score from SOLO baseline to SOLO-CONTINUE week 36, subgroups by SOLO-CONTINUE baseline IGA and EASI, LS mean (SE) | ||||
Subgroup with IGA score >1 at week 36, among patients with IGA score of 0 or 1 at SOLO-CONTINUE baseline | ||||
No. | 53 | 36 | 32 | 50 |
LS mean (SE), % | −63.7 (8.08) | −76.1 (9.14) | −76.3 (8.12) | −79.7 (7.60)c |
Subgroup with <75% improvement in EASI score from SOLO baseline at week 36, among patients with EASI-75 at baseline | ||||
No. | 34 | 14 | 19 | 17 |
LS mean (SE), % | −43.9 (4.81) | −47.4 (6.96) | −57.8 (6.39)c | −58.6 (6.68)c |
Patients who achieved EASI-90 at week 36 among patients with EASI-90 at SOLO-CONTINUE baseline, No./total No. (%) | 10/55 (18.2) | 16/49 (32.7) | 33/56 (58.9)a | 75/116 (64.7)a |
Percent change in Peak Pruritus NRS score from SOLO baseline to SOLO-CONTINUE week 35, subgroups by original dose regimen in SOLO (weekly or every 2 wk), LS mean (SE) | ||||
Originally taking dupilumab, 300 mg, every 2 wk | ||||
No. | 39 | 39 | 41 | 80 |
LS mean (SE), % | −27.05 (7.57) | −50.93 (6.41)c | −51.61 (6.31)k | −60.91 (4.75)a |
Originally taking dupilumab, 300 mg, weekly | ||||
No. | 44 | 45 | 45 | 89 |
LS mean (SE), % | −33.32 (7.29) | −38.68 (6.97) | −50.64 (7.14) | −59.59 (5.35)a |
Patients with improvement in Peak Pruritus NRS score from SOLO baseline to SOLO-CONTINUE week 35, No./total No. (%) | ||||
≥4 Pointsl | 10/78 (12.8) | 21/79 (26.6)c | 27/82 (32.9)m | 78/159 (49.1)a |
≥3 Pointsn | 15/82 (18.3) | 28/82 (34.1)c | 34/84 (40.5)j | 95/166 (57.2)a |
Patients who reported no sleep disturbance in the past 7 d at week 36 (POEM item 2), No. (%) | 18 (21.7) | 30 (35.7) | 41 (47.7)a | 103 (60.9)a |
SCORAD Sleep Loss (scale, 0-10): change from SOLO baseline to SOLO-CONTINUE week 36, LS mean (SE) | −2.7 (0.3) | −3.3 (0.3) | −4.2 (0.2)a | −4.3 (0.2)a |
Patients who reported no pain or discomfort, EQ-5D item, at week 36 among patients who reported moderate or severe pain or discomfort at SOLO baseline, No./total No. (%) | 13/63 (20.6) | 25/64 (39.1)c | 30/72 (41.7)c | 78/138 (56.5)a |
Abbreviations: DLQI, Dermatology Life Quality Index; EASI, Eczema Area and Severity Index; EASI-50, proportion of patients with 50% or greater improvement in EASI from SOLO baseline; EASI-75, proportion of patients with 75% or greater improvement in EASI from SOLO baseline; EASI-90, proportion of patients with 90% or greater improvement in EASI from SOLO baseline; EQ-5D, EuroQol 5-Dimensional Scale; HADS, Hospital Anxiety and Depression Score; IGA, Investigator’s Global Assessment; SOLO-CONTINUE, Study to Confirm the Efficacy and Safety of Different Dupilumab Dose Regimens in Adults With Atopic Dermatitis; LS, least squares; NA, not applicable; NRS, Numerical Rating Scale; POEM, Patient-Oriented Eczema Measure; SCORAD, Scoring Atopic Dermatitis.
P < .001 vs placebo.
P = .004 vs placebo.
P < .05 vs placebo.
P values are nominal for all endpoints other than coprimary or key secondary.
P = .009 vs placebo.
P = .002 vs placebo.
Safety analysis set: placebo, n = 82; dupilumab every 8 weeks, n = 84; dupilumab every 4 weeks, n = 87; dupilumab weekly or every 2 weeks, n = 167.
Flares were defined as worsening of disease requiring initiation or escalation of rescue treatment.
Defined as the proportion of patients who responded “yes” to the question: “Has your eczema been well-controlled over the last week?” and for whom no rescue treatment was administered during that week.
P ≤ .003 vs placebo.
P = .006 vs placebo.
Patients with Peak Pruritus NRS scores of 4 or greater at SOLO baseline.
P = .005 vs placebo.
Patients with Peak Pruritus NRS scores of 3 or greater at SOLO baseline.