European journal of nuclear medicine and molecular imaging · 2022
Efficacy and safety of 177Lu‑DOTATATE in patients with advanced pancreatic neuroendocrine tumours: data from the NETTER-R international, retrospective study.
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Clement Dominique, Navalkissoor Shaunak, Srirajaskanthan Rajaventhan, Courbon Frédéric, Dierickx Lawrence, Eccles Amy, Lewington Valerie, Mitjavila Mercedes, Percovich Juan Carlos, Lequoy Benoît, He Beilei, Folitar Ilya, Ramage John
Аннотация
PURPOSE: NETTER-R aimed to determine the efficacy, safety and tolerability of 177Lu-DOTATATE in patients with progressive, advanced pancreatic neuroendocrine tumours (panNETs) using retrospective real-world data from multiple sites.
METHODS: This international study retrospectively included patients with panNETs treated with 177Lu-DOTATATE. The primary endpoint was progression-free survival (PFS) by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1). Secondary endpoints included overall survival (OS), safety and tumour response.
RESULTS: In total, 110 patients with panNETs were studied; 65.5% received a cumulative dose of 177Lu-DOTATATE 29.6 GBq ± 10% (median: 7.4 GBq). In 62 patients with available RECIST v1.1 tumour response, the median PFS was 24.8 months (95% confidence interval [CI]: 17.5-34.5), and the objective response rate was 40.3% (95% CI: 28.1-53.6); all responses were partial. With a median follow up of 24.5 months (range: 2.0-123.4 months) after the first cycle of 177Lu-DOTATATE, the median OS in the full analysis set (n = 110) was 41.4 months (95% CI: 28.6-50.2). PFS (hazard ratio [HR]: 3.672; p = 0.0009) and OS (HR: 3.360; p < 0.0001) were longer in patients who received no chemotherapy prior to 177Lu-DOTATATE than those who did. No treatment-emergent adverse events (TEAEs) led to treatment discontinuation. Grade 3 anaemia, lymphopenia and thrombocytopenia occurred in 0.9%, 5.4% and 0.9% of patients, respectively. No acute leukaemia or myelodysplastic syndrome was reported. Six patients (5.5%) had renal TEAEs. All renal grade ≥ 3 events were transient and did not lead to treatment modification.
CONCLUSIONS: These results reinforce the role of 177Lu-DOTATATE for the treatment of patients with advanced, somatostatin receptor-positive panNETs.
METHODS: This international study retrospectively included patients with panNETs treated with 177Lu-DOTATATE. The primary endpoint was progression-free survival (PFS) by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1). Secondary endpoints included overall survival (OS), safety and tumour response.
RESULTS: In total, 110 patients with panNETs were studied; 65.5% received a cumulative dose of 177Lu-DOTATATE 29.6 GBq ± 10% (median: 7.4 GBq). In 62 patients with available RECIST v1.1 tumour response, the median PFS was 24.8 months (95% confidence interval [CI]: 17.5-34.5), and the objective response rate was 40.3% (95% CI: 28.1-53.6); all responses were partial. With a median follow up of 24.5 months (range: 2.0-123.4 months) after the first cycle of 177Lu-DOTATATE, the median OS in the full analysis set (n = 110) was 41.4 months (95% CI: 28.6-50.2). PFS (hazard ratio [HR]: 3.672; p = 0.0009) and OS (HR: 3.360; p < 0.0001) were longer in patients who received no chemotherapy prior to 177Lu-DOTATATE than those who did. No treatment-emergent adverse events (TEAEs) led to treatment discontinuation. Grade 3 anaemia, lymphopenia and thrombocytopenia occurred in 0.9%, 5.4% and 0.9% of patients, respectively. No acute leukaemia or myelodysplastic syndrome was reported. Six patients (5.5%) had renal TEAEs. All renal grade ≥ 3 events were transient and did not lead to treatment modification.
CONCLUSIONS: These results reinforce the role of 177Lu-DOTATATE for the treatment of patients with advanced, somatostatin receptor-positive panNETs.