Treatment of metastatic paraganglioma: experience of a single center

David Veríssimo1, Catarina Regala2, Inês Damásio2

  • 1Endocrinology Department, Hospital das Forças Armadas - Pólo de Lisboa, Lisbon, Portugal. d.verissimo87@gmail.com.

Endocrine
|January 31, 2024
PubMed
Abstract

Insights

Surgery is the only effective treatment for metastatic paragangliomas (mPPGL), offering complete and long-lasting responses. Other therapies like radioactive isotopes and chemotherapy primarily achieve stable disease in mPPGL patients.

Area of Science:

  • Endocrinology
  • Oncology
  • Surgical Oncology

Background:

  • Metastatic paragangliomas (mPPGL) have limited treatment options and efficacy data.
  • This study presents a single European center's experience in managing mPPGL.

Purpose of the Study:

  • To evaluate and compare the efficacy and safety of diverse treatment modalities for mPPGL.
  • To provide insights into the outcomes of surgical and non-surgical interventions for mPPGL.

Main Methods:

  • Retrospective analysis of 25 mPPGL patients treated between 2000 and 2022.
  • Evaluation of surgical (primary tumor/metastasis debulking) and non-surgical treatments (radioactive isotopes, TKI, chemotherapy, radiotherapy).

Main Results:

  • Surgery achieved complete response in 87% (primary) and 87.5% (metastasis debulking), with durable results.
  • Other therapies predominantly resulted in stable disease; few partial responses were observed.
  • Median overall survival was 14 years, with 66% of patients alive at follow-up.

Conclusions:

  • Surgery is the recommended first-line treatment for mPPGL, offering the sole possibility for complete response.
  • The findings support surgical intervention for achieving satisfactory and long-lasting outcomes in mPPGL management.