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Updated: Dec 27, 2025

Determination of the Relative Potency of an Anti-TNF Monoclonal Antibody mAb by Neutralizing TNF Using an In Vitro Bioanalytical Method
Published on: September 16, 2017
Efficacy of an anti-TNF-alpha agent in refractory livedoid vasculopathy: a retrospective analysis
1Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Background:
Livedoid vasculopathy is a recurrent thrombo-occlusive vasculopathy of cutaneous blood vessels and its standard or first-line therapy is still controversial. Besides hypercoagulability, inflammatory factors may also play a secondary role in the pathogenesis of this disease. Monotherapy of thrombolytics cannot achieve satisfactory results because of concomitant inflammation.
Objective:
This pilot study aimed to determine the efficacy of an anti-TNF-alpha agent in patients with refractory livedoid vasculopathy.
Methods:
We studied five patients with livedoid vasculopathy who were resistant to steroids, antiplatelets, or danazol therapy, and were treated with etanercept 25-50 mg once a week for 12 consecutive weeks. We assessed clinical characteristics, laboratory findings, and etanercept's efficacy on skin lesions, pain, and quality of life.
Results:
Etanercept therapy resulted in fast relief of pain in a mean time of 2 weeks. The median duration for the disappearance of erythema and ulcer healing was 8.8 weeks and 10.6 weeks, respectively. There was a reduction in pain by 34.3% after 12 consecutive weeks of etanercept treatment. Disease severity and quality of life significantly improved.
Conclusions:
In refractory livedoid vasculopathy patients, etanercept therapy is efficient for skin lesions and pain, and improvement of quality of life, especially in rapid relief of pain.
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