AI Article Synopsis

  • Extramammary Paget disease (EMPD) is a rare skin cancer mainly affecting older adults in the anogenital areas, with no proven treatments from clinical trials so far.
  • Researchers created a patient-derived xenograft model to test various treatments, discovering that eribulin showed significant effectiveness against EMPD tumors.
  • A phase II clinical trial, started in October 2022, is assessing eribulin's efficacy in unresectable EMPD patients, with plans to establish it as a standard treatment if results are positive.

Article Abstract

Extramammary Paget disease (EMPD) is a rare cutaneous malignancy that predominantly affects the anogenital areas of the elderly. Although the efficacy of docetaxel and other cytotoxic agents for advanced EMPD has been reported in small retrospective case studies, no treatment has been proven effective in prospective clinical trials. We established the world's first in vivo EMPD experimental model (a patient-derived xenograft model). In our treatment experiment, xenograft tumours showed a remarkable response to eribulin. This study evaluates the efficacy of eribulin for patients with advanced EMPD. In October 2022, we started a single-arm phase II trial to evaluate the efficacy of eribulin as a treatment for adult patients with unresectable EMPD with measurable lesions. Enrolment in this clinical trial is open to patients with any prior treatment for EMPD. The primary endpoint is overall response rate; the secondary endpoints include disease control rate, overall survival, progression-free survival and adverse events. The study protocol was approved by the Ethics Committee of Hokkaido University and the other collaborating institutions. If the primary endpoint is met, it is our hope that eribulin will be regarded as a standard medication for patients with advanced EMPD.

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http://dx.doi.org/10.1111/exd.14993DOI Listing

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