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Methotrexate Versus Cyclosporine in Adults with Moderate-to-Severe Atopic Dermatitis: A Phase III Randomized Noninferiority Trial

Abstract : BACKGROUND: Methotrexate is currently used to treat atopic dermatitis but has never been assessed versus cyclosporine in adults. OBJECTIVE: This study evaluated the efficacy and safety of methotrexate versus cyclosporine in patients with moderate-to-severe atopic dermatitis. METHODS: Patients were randomized to receive either oral methotrexate (15 mg/wk) or cyclosporine (2.5 mg/kg/d) for 8~weeks. The primary end point was a patient achieving 50% improvement in the SCORing Atopic Dermatitis index (SCORAD 50) at week 8. When the primary end point was not achieved, methotrexate was increased to 25 mg and cyclosporine to 5 mg during the next 16 weeks. The secondary end points were a patient achieving a 50% reduction in the Eczema Area Severity Intensity index (EASI 50) and SCORAD 50 at each visit (ClinicalTrials.gov no. NCT00809172). RESULTS: A total of 97 patients received methotrexate 15 mg (n~= 50) or cyclosporine 2.5 mg (n~= 47). Regarding the primary end point at week 8, methotrexate was inferior to cyclosporine because the proportion of patients with SCORAD 50 was 8% (4 of 50) in the methotrexate arm versus 42% (18 of 43) in the cyclosporine arm. The difference in percentages for the 2 treatment groups (2-sided 90% CI) was~-34% (-48% to~-20%). At week 8, methotrexate and cyclosporine dosages were increased in 56% and 49% of the patients, respectively. Regarding EASI 50, the noninferiority end point was reached at week 20 in 92% (22 of 24) of patients in the methotrexate arm and 87% (26 of 30) of patients in the cyclosporine arm. The treatment-related adverse events were more frequent with cyclosporine (P \textless .0001). CONCLUSIONS: Methotrexate 15 mg/wk was inferior to cyclosporine 2.5 mg/kg/d at week 8. Increasing the doses of methotrexate to 25 mg/wk induced a significant improvement versus cyclosporine at week~20.
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https://hal.archives-ouvertes.fr/hal-01911515
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Submitted on : Friday, November 2, 2018 - 7:33:49 PM
Last modification on : Wednesday, December 8, 2021 - 1:23:13 PM

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Catherine Goujon, Manuelle Viguier, Delphine Staumont-Sallé, Claire Bernier, Gérard Guillet, et al.. Methotrexate Versus Cyclosporine in Adults with Moderate-to-Severe Atopic Dermatitis: A Phase III Randomized Noninferiority Trial. Journal of Allergy and Clinical Immunology: In Practice, Elsevier, 2018, 6 (2), pp.562-569.e3. ⟨10.1016/j.jaip.2017.07.007⟩. ⟨hal-01911515⟩

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