PeDRA 2026: Nemolizumab Phase II Data Show Long-Term Symptom Relief for Children Aged 2 to 11 Years With Moderate-to-Severe Atopic Dermatitis

• Patient-reported outcomes from a phase II study of nemolizumab in children aged 2 to 11 with moderate-to-severe atopic dermatitis show meaningful reductions in itch severity, better sleep and improved quality of life, maintained for a year¹
• Currently, there are limited approved treatment options for children living with moderate-to-severe atopic dermatitis, despite the high unmet need – the disease can significantly reduce quality of life for children and create burden on their families^2-8
• These findings expand on the clinical evidence base for nemolizumab, which has multiple global approvals for adult and pediatric patients 12 years of age and older with moderate-to-severe atopic dermatitis, and adults with prurigo nodularis^9,10

ZUG, Switzerland — Galderma (SIX: GALD), the pure-play dermatology category leader, today announced new phase II data showing that nemolizumab provided meaningful improvements in itch, sleep disturbance, and quality of life in children aged 2 to 11 years with moderate-to-severe atopic dermatitis, sustained through Week 52.¹ The results will be presented at The Pediatric Dermatology Research Alliance (PeDRA) Annual Conference.

Up to 25% of children are affected by atopic dermatitis – the most common inflammatory skin disorder in this population – and around one-third of these children have moderate-to-severe disease.^11,12 Atopic dermatitis creates a high burden for both the patients and their loved ones, with persistent itch and recurrent skin lesions often disrupting sleep, school, and social confidence.^2-8 Despite the high prevalence and significant burden, treatment options are limited in the pediatric setting for those with moderate-to-severe disease.³

• Improvements in itch were achieved early in treatment and sustained over one year of follow-up, with Peak Pruritus Numerical Rating Scale four point-response rates between 56%-72% across cohorts at Week 16, and similar and/or higher responses seen at Week 52.
• Reductions in sleep disturbance as measured by the Sleep Disturbance Numerical Rating Scale were similarly achieved early in treatment and maintained through Week 52, with scores improving by -70 to -78% across cohorts at Week 16, and further improvements at Week 52.
• Mean Children’s Dermatology Life Quality Index (for children ≥4 years) scores improved by -10.7, -12.0, and -12.0 from baseline at Week 52 across cohorts.
• Improvements were also observed in both age-appropriate quality of life measures, including the Infants’ Dermatitis Quality of Life index (for children <4 years) and Patient-Oriented Eczema Measure (for children ≥4 years).

Nemolizumab is the first approved monoclonal antibody that specifically targets and inhibits the signaling of IL-31 – a neuroimmune cytokine that drives itch and is involved in inflammation, epidermal dysregulation and fibrosis in both atopic dermatitis and prurigo nodularis.^9,10,13,14 Nemolizumab was initially developed by Chugai Pharmaceutical Co., Ltd. In 2016, Galderma obtained exclusive rights to the development and marketing of nemolizumab worldwide, except in Japan. In Japan, nemolizumab is marketed as Mitchga^® and is approved for the treatment of prurigo nodularis in adults and children aged 13 years and older, as well as pruritus associated with atopic dermatitis in adults and children between the ages of 6 and 12.^15,16 Nemolizumab (under the name Nemluvio^®) was approved by the United States Food and Drug Administration for the treatment of adults with prurigo nodularis, and patients 12 years and older with moderate-to-severe atopic dermatitis, in combination with topical corticosteroids and/or calcineurin inhibitors when the disease is not adequately controlled with topical prescription therapies.⁹ To date, nemolizumab is approved for both adolescents and adults with moderate-to-severe atopic dermatitis and adults with prurigo nodularis in more than 40 countries around the world. Additional regulatory submissions and reviews are ongoing.

: NEMLUVIO® (nemolizumab-ilto) is an interleukin-31 receptor alpha antagonist indicated for:

• the treatment of adults and pediatric patients 12 years of age and older with moderate-to-severe atopic dermatitis in combination with topical corticosteroids and/or calcineurin inhibitors when the disease is not adequately controlled with topical prescription therapies.
• the treatment of adults with prurigo nodularis.

NEMLUVIO is contraindicated in patients with known hypersensitivity to nemolizumab-ilto or to any of the excipients in NEMLUVIO.

Hypersensitivity reactions have been reported with NEMLUVIO use. If clinically significant hypersensitivity reaction occurs, immediately institute appropriate therapy, and discontinue NEMLUVIO. Avoid use of live vaccines during treatment with NEMLUVIO.

Most common adverse reactions (incidence ≥1%) are:

• Atopic Dermatitis: headache (including migraine), arthralgia, urticaria, and myalgia.
• Prurigo Nodularis: headache, dermatitis atopic, eczema, and eczema nummular.

: There are no adequate and well-controlled studies on NEMLUVIO in pregnant women. The limited available information on NEMLUVIO use during pregnancy is not sufficient to inform a drug-associated risk of major birth defects or miscarriage in humans. Human IgG antibodies are known to cross the placental barrier; therefore, NEMLUVIO may be transmitted from the mother to the developing fetus.

: There are no data on the presence or transfer of NEMLUVIO in human milk, the effects on the breastfed infant, or the effects on milk production. Human IgG is known to be present in human milk. The effects of local gastrointestinal and limited systemic exposure to NEMLUVIO on the breastfed infant are unknown. NEMLUVIO has not been administered to nursing/lactating women. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for NEMLUVIO and any potential adverse effects on the breastfed child from NEMLUVIO or from the underlying maternal condition.

The safety and effectiveness of NEMLUVIO have not been established in pediatric patients younger than 12 years of age for the treatment of moderate-to-severe atopic dermatitis or pediatric patients younger than 18 years of age for the treatment of prurigo nodularis.

Galderma (SIX: GALD) is the pure-play dermatology category leader, present in approximately 90 countries. We deliver an innovative, science-based portfolio of premium flagship brands and services that span the full spectrum of the fast-growing dermatology market through Injectable Aesthetics, Dermatological Skincare and Therapeutic Dermatology. Since our foundation in 1981, we have dedicated our focus and passion to the human body’s largest organ – the skin – meeting individual consumer and patient needs with superior outcomes in partnership with healthcare professionals. Because we understand that the skin we are in shapes our lives, we are advancing dermatology for every skin story. For more information: www.galderma.com.

1. Eichenfield LF, et al. Patient-Reported Outcomes and Quality of Life in Pediatric Patients (Aged 2–11 Years) with Moderate-to-Severe Atopic Dermatitis Treated with Nemolizumab. Abstract presented at The Pediatric Dermatology Research Alliance (PeDRA) Annual Conference; October 15-17, 2026; United States.
2. Schoch JJ, et al. Atopic dermatitis: Update on skin-directed management: clinical report. Pediatrics. 2025; 155(6):e2025071812. doi:10.1542/peds.2025-071812.
3. Eichenfield LF, et al. Patient-reported impact of atopic dermatitis on pediatric and adolescent patients with moderate-to-severe disease: results of a real-world, cross-sectional survey. Pediatr Dermatology. 2025;42:523-531. doi:10.1111/pde.15940.
4. Vittrup I, et al. The association between atopic dermatitis, cognitive function and school performance in children and young adults. Br J Dermatol. 2023;188(3):341-349. doi: 10.1093/bjd/ljac058.
5. Mostafa N and Smith S D. Improving psychological health outcomes in children with atopic dermatitis. Clin Cosmet Investig Dermatol. 2023;16:2821-2827. doi: 10.2147/CCID.S393254.
6. Stingeni L, et al. Atopic Dermatitis and Patient Perspectives: Insights of Bullying at School and Career Discrimination at Work. J Asthma Allergy. 2021;14:919-928. doi:10.2147/JAA.S317009
7. Kelly K A, et al. Skin disease in children: Effects on quality of life, stigmatization, bullying, and suicide risk in pediatric acne, atopic dermatitis, and psoriasis patients. Children (Basel). 2021;8(11):1057. doi:10.3390/children8111057.
8. Lee D G, et al. Sleep Disturbances in Children With Atopic Dermatitis: A Scoping Review. J Cutan Med Surg. 2023;27(2):157-164. doi:10.1177/12034754231159337.
9. Nemluvio® U.S. Prescribing Information. Available online. Accessed October 2026.
10. Nemluvio® European Medicines Agency. Summary of Product Characteristics. Available online. Accessed October 2026.
11. Jennifer J, et al. Atopic Dermatitis: Update on Skin-Directed Management: Clinical Report. Pediatrics. 2025;155(6):e2025071812. doi:10.1542/peds.2025-071812.
12. Shaw TE, Currie GP, Koudelka CW, Simpson EL. Eczema prevalence in the United States: data from the 2003 National Survey of Children’s Health. J Invest Dermatol. 2011;131(1):67-73.
13. Silverberg, et al. Phase 2B randomized study of nemolizumab in adults with moderate-to-severe atopic dermatitis and severe pruritus. J Allergy Clin Immunol. 2020;145(1):173-182. doi: 10.1016/j.jaci.2019.08.013.
14. Bewley, et al. Prurigo Nodularis: A Review of IL-31RA Blockade and Other Potential Treatments. Dermatol Ther (Heidelb). 2022;12(9):2039-2048. doi: 10.1007/s13555-022-00782-2.
15. Chugai Pharmaceutical Co., Ltd. Maruho Obtained Regulatory Approval for Mitchga, the first Antibody Targeting IL-31 for Itching Associated with Atopic Dermatitis. Available online. Accessed October 2026.
16. Chugai Pharmaceutical Co., Ltd. Mitchga Approved for Itching in Pediatric Atopic Dermatitis and Prurigo Nodularis, for its Subcutaneous Injection 30mg Vials. Available online. Accessed October 2026.

Contacts

For further information:

Christian Marcoux, M.Sc.
Chief Communications Officer
christian.marcoux@galderma.com
+41 76 315 26 50

Richard Harbinson
Corporate Communications Director
richard.harbinson@galderma.com
+41 76 210 60 62

Céline Buguet
Franchises and R&D Communications Director
celine.buguet@galderma.com
+41 76 249 90 87

Emil Ivanov
Head of Strategy, Investor Relations, and ESG
emil.ivanov@galderma.com
+41 21 642 78 12

Jessica Cohen
Investor Relations and Strategy Director
jessica.cohen@galderma.com
+41 21 642 76 43