Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids

Introduction: Well-differentiated neuroendocrine pulmonary tumours (NETp) are morphologically classified as typical carcinoid (TC) and atypical carcinoid (AC). There are limited data on systemic treatment for metastatic disease. Objective: Our study evaluated the median progression-free survival of...

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Main Authors: Hugo Tanaka, Marcelo Petrocchi Corassa, Helano Freitas, Milton Barros, Rachel Riechelmann
Format: Article
Language:English
Published: Sociedade Brasileira de Oncologia Clínica, Sociedade Brasileira de Cirurgia Clínica and Sociedade Brasileira de Radioterapia 2021-10-01
Series:Brazilian Journal of Oncology
Subjects:
Online Access:http://www.brazilianjournalofoncology.com.br/details/135/en-US/outcomes-of-patients-with-metastatic-neuroendocrine-lung-neoplasms--typical-versus-atypical-carcinoids
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author Hugo Tanaka
Marcelo Petrocchi Corassa
Helano Freitas
Milton Barros
Rachel Riechelmann
author_facet Hugo Tanaka
Marcelo Petrocchi Corassa
Helano Freitas
Milton Barros
Rachel Riechelmann
author_sort Hugo Tanaka
collection DOAJ
description Introduction: Well-differentiated neuroendocrine pulmonary tumours (NETp) are morphologically classified as typical carcinoid (TC) and atypical carcinoid (AC). There are limited data on systemic treatment for metastatic disease. Objective: Our study evaluated the median progression-free survival of patients with metastatic tumours, comparing TC and AC status for different treatments. Methods: Retrospective series of patients with metastatic NETp treated from 2002 to 2019 in a large cancer centre were analysed. Our primary endpoint was progression-free survival according to morphological classification (TC vs. AC). All patients received at least one treatment modality (e.g., somatostatin analogue [SSA], chemotherapy [ChP], and everolimus [Eve]). Variables were analysed using the chi-square test, median progression-free survival (mPFS) rates (months), with comparisons evaluated by the log-rank test. Results: Twenty-seven patients were included: 44% with TC and 56% with AC. TC patients were on average 58-years-old, 83.3% were female, and 33.3% received more than one treatment. AC patients were on average 61-years-old, 66.7% were female, and 20% received more than one treatment. All patients were treated more frequently with SSA (TC: 75% vs. AC: 80%, p=0.756). Cisplatin and etoposide were the most frequent ChP regimen (TC: 75% vs. AC: 30%, p=0.248). Patients with TC and AC treated with SSA had higher mPFS in months (TC mPFS SSA: 14.5, Eve: 2.50, ChP: 4.0, SSA + Eve: 4.50; AC mPFS SSA: 7.50, Eve: 4.50, ChP: 7.50, SSA + Eve: 7.00). Conclusion: Although the statistical analyses did not show a significant difference between treatment, numerically, more patients with TC or AC experienced tumor control with SSAs, where the mPFS pairs showed a possible tendency to differentiate themselves from the other regimes (Eve and ChP).
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spelling doaj.art-14d39abe1d1c4cb4ab333962d7dbf32c2023-09-26T09:00:16ZengSociedade Brasileira de Oncologia Clínica, Sociedade Brasileira de Cirurgia Clínica and Sociedade Brasileira de RadioterapiaBrazilian Journal of Oncology2526-87322021-10-01170010.5935/2526-8732.20200041Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoidsHugo Tanaka0https://orcid.org/0000-0002-9513-0478Marcelo Petrocchi Corassa1https://orcid.org/0000-0002-7707-8768Helano Freitas2https://orcid.org/0000-0002-8415-073XMilton Barros3https://orcid.org/0000-0001-7916-5737Rachel Riechelmann4https://orcid.org/0000-0002-0107-9617AC Camargo Center, Department of Clinical Oncology - Sao Paulo - Sao Paulo - BrazilAC Camargo Center, Department of Clinical Oncology - Sao Paulo - Sao Paulo - BrazilAC Camargo Center, Department of Clinical Oncology - Sao Paulo - Sao Paulo - BrazilAC Camargo Center, Department of Clinical Oncology - Sao Paulo - Sao Paulo - BrazilAC Camargo Center, Department of Clinical Oncology - Sao Paulo - Sao Paulo - BrazilIntroduction: Well-differentiated neuroendocrine pulmonary tumours (NETp) are morphologically classified as typical carcinoid (TC) and atypical carcinoid (AC). There are limited data on systemic treatment for metastatic disease. Objective: Our study evaluated the median progression-free survival of patients with metastatic tumours, comparing TC and AC status for different treatments. Methods: Retrospective series of patients with metastatic NETp treated from 2002 to 2019 in a large cancer centre were analysed. Our primary endpoint was progression-free survival according to morphological classification (TC vs. AC). All patients received at least one treatment modality (e.g., somatostatin analogue [SSA], chemotherapy [ChP], and everolimus [Eve]). Variables were analysed using the chi-square test, median progression-free survival (mPFS) rates (months), with comparisons evaluated by the log-rank test. Results: Twenty-seven patients were included: 44% with TC and 56% with AC. TC patients were on average 58-years-old, 83.3% were female, and 33.3% received more than one treatment. AC patients were on average 61-years-old, 66.7% were female, and 20% received more than one treatment. All patients were treated more frequently with SSA (TC: 75% vs. AC: 80%, p=0.756). Cisplatin and etoposide were the most frequent ChP regimen (TC: 75% vs. AC: 30%, p=0.248). Patients with TC and AC treated with SSA had higher mPFS in months (TC mPFS SSA: 14.5, Eve: 2.50, ChP: 4.0, SSA + Eve: 4.50; AC mPFS SSA: 7.50, Eve: 4.50, ChP: 7.50, SSA + Eve: 7.00). Conclusion: Although the statistical analyses did not show a significant difference between treatment, numerically, more patients with TC or AC experienced tumor control with SSAs, where the mPFS pairs showed a possible tendency to differentiate themselves from the other regimes (Eve and ChP).http://www.brazilianjournalofoncology.com.br/details/135/en-US/outcomes-of-patients-with-metastatic-neuroendocrine-lung-neoplasms--typical-versus-atypical-carcinoidscarcinoid tumortypical carcinoidatypical carcinoideverolimussomatostatin analoguechemotherapyadjuvant/ neuroendocrine tumor
spellingShingle Hugo Tanaka
Marcelo Petrocchi Corassa
Helano Freitas
Milton Barros
Rachel Riechelmann
Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids
Brazilian Journal of Oncology
carcinoid tumor
typical carcinoid
atypical carcinoid
everolimus
somatostatin analogue
chemotherapy
adjuvant/ neuroendocrine tumor
title Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids
title_full Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids
title_fullStr Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids
title_full_unstemmed Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids
title_short Outcomes of patients with metastatic neuroendocrine lung neoplasms: typical versus atypical carcinoids
title_sort outcomes of patients with metastatic neuroendocrine lung neoplasms typical versus atypical carcinoids
topic carcinoid tumor
typical carcinoid
atypical carcinoid
everolimus
somatostatin analogue
chemotherapy
adjuvant/ neuroendocrine tumor
url http://www.brazilianjournalofoncology.com.br/details/135/en-US/outcomes-of-patients-with-metastatic-neuroendocrine-lung-neoplasms--typical-versus-atypical-carcinoids
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AT helanofreitas outcomesofpatientswithmetastaticneuroendocrinelungneoplasmstypicalversusatypicalcarcinoids
AT miltonbarros outcomesofpatientswithmetastaticneuroendocrinelungneoplasmstypicalversusatypicalcarcinoids
AT rachelriechelmann outcomesofpatientswithmetastaticneuroendocrinelungneoplasmstypicalversusatypicalcarcinoids