Characteristics and outcome of systemic treatment for metastatic or unresectable thymic carcinoma: A single institution experience

Thorac Cancer. 2024 Feb;15(4):339-346. doi: 10.1111/1759-7714.15198. Epub 2023 Dec 27.

Abstract

Background: Thymic carcinoma is a rare disease with an incidence of around 0.5 cases per million with a poor prognosis. The aim of this study was to assess patient outcomes with advanced thymic carcinoma receiving first-line chemotherapy.

Methods: In our retrospective cohort study, we included patients who underwent treatment for metastatic thymic carcinoma between January 2013 to December 2019 in our hospital. Overall survival, progression-free survival (PFS), objective response rates (ORR) and chemotherapy regimens were assessed and analyzed.

Results: A total of 27 patients were retrospectively analyzed. All patients received a platinum (cisplatin or carboplatin) based regimen as first-line chemotherapy (29.6% received ADOC, 11.1% received PE, 40.7% received CP, 14.8% received CAP). The median PFS on first-line chemotherapy was 199 days. The response rate was 40.7%. Median overall survival (OS) was 585 days. Positive CD5 staining was associated with better PFS.

Conclusion: We highlight the critical role of platinum-based chemotherapy agents as a primary treatment modality in advanced thymic carcinoma, underscoring the efficacy of platinum as a first-line option for recurrent disease, even in cases previously treated with platinum. Additionally, our findings indicate that CD5 positivity could be associated with improved PFS, suggesting its potential as a prognostic marker.

Keywords: cisplatin; platinum; thymic cancer.

MeSH terms

  • Antineoplastic Agents* / therapeutic use
  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use
  • Cisplatin / therapeutic use
  • Humans
  • Platinum / therapeutic use
  • Retrospective Studies
  • Thymoma* / drug therapy
  • Thymoma* / pathology
  • Thymus Neoplasms* / drug therapy
  • Thymus Neoplasms* / pathology
  • Treatment Outcome

Substances

  • Antineoplastic Agents
  • Cisplatin
  • Platinum