The first reported case of trastuzumab induced interstitial lung disease associated with anti-neutrophil cytoplasmic antibody vasculitis – A case report and a prospective cohort study on the usefulness of neutrophil derived biomarkers in monitoring vasculitis disease activity during follow-up

Breast

Chiau-Jing Jung¹  Ching-Hung Lin²  Chen-Han Chang³  Yi-Ming Huang⁴  Yih-Leong Chang⁵  Lo Chiao⁶  Yu-Min Kuo⁷  Song-Chou Hsieh⁸ 

[1]Corresponding author. Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan.

[2]Department of Pathology, National Taiwan University Cancer Center and National Taiwan University College of Medicine, Taipei, Taiwan

[3]Department of Medical Oncology, National Taiwan University Hospital, Taipei, Taiwan

[4]Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan

[5]Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan

[6]Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan

[7]Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

[8]Graduate Institute of Pathology, College of Medicine, National Taiwan University College of Medicine, Taipei, Taiwan

关键词: Trastuzumab;    Antineutrophil cytoplasmic antibody;    Interstitial lung disease;    Breast cancer;   

DOI  :  

来源: DOAJ

【 摘 要 】

Targeted therapies against human epidermal growth factor receptor 2 (HER2) are associated with increased interstitial lung disease (ILD). Trastuzumab, lapatinib, pertuzumab, and trastuzumab emtansine have markedly extended HER2 breast cancer survival but current knowledge on how these HER2-targeted agents induce interstitial lung disease is still poorly defined due to limited cases in the literature. Physicians mostly managed this complication by dose interruption, dose de-escalation, or discontinuation with success. In 2019, the FDA had granted accelerated approval on trastuzumab deruxtecan (T-Dxd) in HER2 breast cancer in the late line setting. Severe ILD incidence rate was over ten percent and led to fatal outcomes in 2.2% of patients in the T-Dxd trial. Searching for biomarkers to detect ILD incidence before it becomes clinically fulminant or for treatment response monitoring is of high clinical value.A Case of life-threatening trastuzumab-induced ILD was encountered in our facility. The ILD was confirmed to be antineutrophil cytoplasmic antibody (ANCA) pulmonary capillaritis. The biomarker of neutrophil extracellular traps (NETs), serum MPO-DNA complex, showed a good correlation with the clinical severity. Soon after B cell depleting agent rituximab usage, the serum MPO-DNA outperformed ANCA autoantibody and maintained its correlation with clinical severity. In addition to the trastuzumab-induced ILD case, a prospective cohort in our facility also confirmed the usefulness of MPO-DNA in monitoring vasculitis activity. We postulated that upfront testing with biomarkers of vasculitis during HER2 targeted treatment with high ILD incidence may be beneficial in the future.

【 授权许可】

Unknown