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Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) Natriuretic factors and inflammation biomarkers as predictors of survival in [17...
Journal Information
Vol. 44. Issue 5.
(September - October 2025)
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3
Vol. 44. Issue 5.
(September - October 2025)
Original Article
Natriuretic factors and inflammation biomarkers as predictors of survival in [177Lu]Lu-DOTA-TATE therapy of neuroendocrine tumors
Factores natriuréticos y biomarcadores de inflamación como predictores de supervivencia en la terapia con [177Lu]Lu-DOTA-TATE de los tumores neuroendocrinos
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A. Piñeiro Donisa,
Corresponding author
adrianpd34@gmail.com

Corresponding author.
, L. Menéndez-Murosb, J.L. Villa-Palaciosa, E. Triviño-Ibáñeza, M.A. Muros-Fuentesa
a Servicio de Medicina Nuclear, Hospital Universitario Virgen de las Nieves, Granada, Spain
b Servicio de Reumatología, Hospital Clínico San Cecilio, Granada, Spain
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Table 1. Clinical parameters of the patients and tumor characteristics.
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Table 2. Histological characteristics and analytical parameters related to overall survival.
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Table 3. Tumoral characteristics and analytical parameters related to progression-free survival.
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Abstract
Objective

To analyze the prognostic value of N-terminal prohormone of brain natriuretic peptide (NT-proBNP) and other biomarkers of inflammation in patients with neuroendocrine tumors (NETs) treated with [177Lu]Lu-DOTA-TATE (Lutathera®). The prognostic value of histological characteristics of the tumor was also analyzed.

Patients and methods

Prospective study of a cohort of patients with advanced and metastatic NETs treated with [177Lu]Lu-DOTA-TATE. Before the administration of doses, NT-proBNP, hemoglobin, hematocrit, C-reactive protein, leukocytes, lymphocytes, neutrophils, neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) have been determined. Overall survival (OS) and progression free survival (PFS) were calculated, using the Kaplan-Meier method, and curves were compared with a log-rank test. To determine the predictor variables of OS, a Cox regression model was fitted.

Results

48 NET patients treated with [177Lu]Lu-DOTA-TATE. Median OS was 96 months and PFS was 29 months. Factors associated with lower OS were: NTproBNP values>300 pg/mL (HR: 10,5; p = 0,005) in the subgroup of patients with grades 2–3, in addition to inflammatory indices NLR > 2 (HR: 3,87; p = 0,049) and PLR > 300 (HR: 11,88; p = 0,01) and higher tumor grade (HR: 6,45; p = 0,011). PLR > 300 (HR: 5,506; p = 0,003) was also associated with lower PFS. In contrast, higher levels of lymphocytes (HR: 0,21; p = 0,002), hemoglobin (HR: 0,65; p = 0,041) and hematocrit (HR: 0,862; p = 0,031) were associated with higher OS, without significant changes in PFS.

Conclusion

In patients with NETs treated with [177Lu]Lu-DOTA-TATE, the determination of natriuretic factors (NT-ProBNP) and other inflammatory biomarkers may be useful as predictors of survival and prognostic factors.

Keywords:
Neuroendocrine tumors
Peptide receptor radionuclide therapy
[177Lu]Lu-DOTA-TATE
Natriuretic peptide
NT-proBNP
Inflammatory biomarkers
Overall survival
Progression-free survival
Resumen
Objetivo

Analizar el valor pronóstico del propéptido natriurético cerebral N-terminal (NT-proBNP) y otros biomarcadores de inflamación en pacientes con tumores neuroendocrinos (TNE) tratados [177Lu]Lu-DOTA-TATE (Lutathera®). Evaluar el valor pronóstico de las características tumorales.

Pacientes y métodos

Cohorte prospectiva de pacientes con TNE avanzados y metastásicos tratados con [177Lu]Lu-DOTA-TATE. Previamente a la administración, se realizó una determinación analítica de NT-proBNP, hemoglobina, hematocrito, proteína C reactiva (PCR), leucocitos, linfocitos, neutrófilos, ratio neutrófilos/linfocitos (NLR) y ratio plaquetas/linfocitos (PLR). Se calcularon la supervivencia global (SG) y supervivencia libre de progresión (SLP) con el método de Kaplan-Meier y se compararon las curvas con la prueba log-rank. Las variables predictoras de SG y SLP se determinaron con un modelo de regresión univariante de Cox.

Resultados

48 pacientes de TNE tratados con [177Lu]Lu-DOTA-TATE. La mediana de SG fue de 96 meses y la de SLP de 29 meses. Los factores asociados con menor SG fueron: los valores de NT-proBNP>300 pg/mL (HR: 10,5; p = 0,005) en el subgrupo de pacientes con grados 2-3, además de los índices inflamatorios NLR > 2 (HR:3,87; p = 0,049) y PLR > 300 (HR: 11,88; p = 0,01) y el mayor grado tumoral (HR: 6,45; p = 0,011). Los valores de PLR > 300 (HR: 5,506; p = 0,003) también se asociaron a menor SLP. En cambio, niveles mayores de linfocitos (HR: 0,21; p = 0,002), hemoglobina (HR: 0,65; p = 0,041) y hematocrito (HR: 0,862; p = 0,031) se asociaron con mayor SG, sin cambios significativos de SLP.

Conclusiones

En los pacientes con TNE tratados con [177Lu]Lu-DOTA-TATE, la determinación de NT-proBNP y otros biomarcadores de inflamación pueden tener utilidad como predictores de supervivencia, teniendo estos valor pronóstico.

Palabras clave:
Tumores neuroendocrinos
Terapia con radioligandos
[177Lu]Lu-DOTA-TATE
Péptidos natriuréticos
NT-proBNP
Biomarcadores de inflamación
Supervivencia global
Supervivencia libre de progresión

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