Case Report: Local injection of an IL-17 inhibitor successfully treats Acrodermatitis continua of Hallopeau and avoids immune shift - Report - MDSpire

Case Report: Local injection of an IL-17 inhibitor successfully treats Acrodermatitis continua of Hallopeau and avoids immune shift

  • By

  • Yali Li

  • Shiying Li

  • Yuning Zhang

  • Yuhan Chen

  • Tao Guo

  • Chen Li

  • June 9, 2026

  • 0 min

Share

Successful Local Administration of an IL-17 Inhibitor in ACH Treatment

Overview

This report details a successful case of local IL-17 inhibitor injections in a 13-year-old girl with refractory acrodermatitis continua of Hallopeau (ACH), avoiding systemic immune drift. The treatment led to significant improvement in skin lesions and quality of life without the adverse effects typically associated with systemic therapies.

Background

Acrodermatitis continua of Hallopeau (ACH) is a chronic and challenging skin disorder characterized by pustular lesions primarily affecting the distal extremities. Traditional treatments often yield poor results and can lead to immune imbalances. The use of biologic agents targeting the IL-17 pathway has shown promise, but systemic administration may provoke adverse immune responses, necessitating alternative local treatment strategies.

Data Highlights

AssessmentBaselineWeek 16
PPPASI14.40
DLQI240
NAPSI1600

Key Findings

  • Local injections of Xeligekimab effectively treated refractory ACH lesions.
  • The patient experienced significant improvement in PPPASI, DLQI, and NAPSI scores.
  • Systemic immune drift was avoided through localized treatment.
  • Previous systemic therapies, including acitretin and upadacitinib, were ineffective.
  • Local administration of IL-17 inhibitors may represent a novel approach for managing ACH.

Clinical Implications

The findings suggest that local administration of IL-17 inhibitors can be a viable treatment option for patients with refractory ACH, potentially minimizing systemic side effects. Clinicians should consider this approach for patients who do not respond to conventional therapies.

Conclusion

Local injection of IL-17 inhibitors may provide an effective treatment alternative for refractory ACH, warranting further investigation to validate these findings in larger cohorts.

Related Resources & Content

  1. Dermatology and Therapy, 2026 -- Lebrikizumab ADvocate1 and 2 Monotherapy and ADjoin (Long-Term) Trials: Use of Topicals Therapies
  2. Journal of Gastroenterology, 2018 -- Emerging Therapeutic Strategies for Inflammatory Bowel Disorders
  3. conexiant, 2023 -- IL-17, IL-23 Therapies Lead Psoriasis Care
  4. ScienceDirect, 2025 -- Acrodermatitis continua of Hallopeau—clinical review and proposed management algorithm
  5. British Journal of Dermatology, 2025 -- Global Delphi consensus on treatment goals for generalized pustular psoriasis
  6. Co-administration of immunomodulators enhances recovery from anti-drug antibody-induced loss of efficacy in anti-TNF treatment for inflammatory bowel disease
  7. Acrodermatitis continua of Hallopeau—clinical review and proposed management algorithm - ScienceDirect
  8. Global Delphi consensus on treatment goals for generalized pustular psoriasis | British Journal of Dermatology | Oxford Academic
  9. Successful treatment of severe acrodermatitis continua of hallopeau with Bimekizumab: A case report - PMC

Original Source(s)

Related Content