NANETS2023 Trials In Progress (12 abstracts)
Phase 3 LEVEL trial of 177Lu-edotreotide vs everolimus in patients with advanced neuroendocrine tumors of lung or thymic origin (GETNE-T2217)
Jaume Capdevila 1 , Nicola Fazio 7 , Rosa Álvarez 2 , Catherine Ansquer 3 , Sergio Baldari 4 , Eric Baudin 5 , Marta Benavent 6 , Lavinia Benini 7 , Amandine Beron 8 , Alfredo Berruti 9 , Sara Cingarlini 12 , Maribel del Olmo-García 13 , Emmanuel Deshayes 14 , Alejandro Garcia-Alvarez 1 , Rocío Garcia-Carbonero 10 , Magalie Haissaguerre 16 , Jorge Hernando 1 , Urbano Anido Herranz 17 , Paula Jimenez-Fonseca 15 , Come Lepage 18 , Belén Llana 15 , Javier Molina-Cerrillo 11 , Francesco Panzuto 19 , Virginia Pubul 20 , Maddalena Sansovini 21 , Salvatore Tafuto 22 , David Taieb 23 , Alex Teulé 24 , Annibale Versari 25 , Guillermo Villacampa 1 & Thomas Walter 26
1Vall d´Hebron University Hospital, Vall d´Hebron Institute of Oncology (VHIO), Barcelona, Spain; 2Gregorio Marañon Hospital, Madrid, Spain; 3Nantes University Hospital, Nantes, France; 4AOU Policlinico G. Martino, Messina, Italy; 5Gustave Roussy, Paris, France; 6Virgen del Rocío University Hospital, Seville, Spain; 7European Institute of Oncology, Milan, Italy; 8Lille University Hospital, Lille, France; 9Azienda Ospedaliera Spedali Civili Brescia, Italy; 10Hospital Universitario 12 de Octubre, Madrid, Spain; 11Hospital Universitario Ramón y Cajal, Madrid, Spain; 12Azienda Ospedaliera Universitaria Integrata Verona, Italy; 13Hospital Universitario y Politécnico La Fe, Valencia, Spain; 14Montpellier Cancer Institute (ICM Val d’Aurelle), Montpellier, France; 15Asturias Central University Hospital, Oviedo, Spain; 16University Hospital Bordeaux, Bordeaux, France; 17University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, Spain; 18Hospital Center University Dijon-Bourgogne, Dijon, France; 19Department of Medical-Surgical Sciences and Translational Medicine, Digestive Disease Unit Sant’Andrea University Hospital, ENETS Center of Excellence, Sapienza University of Rome, Italy; 20Complexo Hospitalario Universitario de Santiago de Compostela; 21IRCCS Istituto Romagnolo per lo Studio dei Tumori "Dino Amadori" - Irsì – Meldola, Italy; 22National Cancer Institute IRCCS, Naples, Italy; 23Department of Nuclear Medicine, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France; 24Catalan Institute of Oncology Hospital, Barcelona, Spain; 25Unit of Nuclear Medicine, S. Maria Nuova Hospital-IRCCS of Reggio Emilia, Reggio Emilia, Italy; 26Edouard Herriot Hospital, Lyon, France
Background: Everolimus is the only approved drug for patients with advanced bronchopulmonary neuroendocrine tumors (NET), and there is an urgent unmet need for alternative treatments. Retrospective data for peptide receptor radionuclide therapy (PRRT) have demonstrated promising activity in somatostatin receptor (SST)-positive lung NET. This study aims to investigate the clinical efficacy, safety, and patient-reported outcomes when 177Lu-edotreotide is used to treat advanced lung and thymic NET, as compared to everolimus.
Methods: The LEVEL trial is a randomized, open-label, phase 3 international trial of 177Lu-edotreotide vs everolimus in patients with confirmed advanced, well/moderately differentiated NET of lung or thymic origin. Participants (target sample n =120) must have WHO grade 1 or 2 disease (typical/atypical), SST-positive lesions and radiological evidence of disease progression in the last 12 months according to RECIST v1.1. They can be systemic treatment naïve or have experienced progression on somatostatin analogues and/or ≤2 additional systemic treatments (e.g., chemotherapy, targeted agents, immunotherapy). Prior PRRT or mammalian target of rapamycin (mTOR) inhibitor treatment is not permitted. Eligible participants will be randomly assigned 3:2 to 6 cycles of 177Lu-edotreotide (total dose 7.5±0.7 GBq) or to oral everolimus 10 mg once daily until progressive disease (PD) or intolerable toxicity. CT or MRI scans will be performed every 12 weeks until PD. Blood samples will be analyzed at baseline, at the time of administration of the first dose of study drug, and at PD for pharmacodynamics and to identify potential predictive biomarkers of treatment response. Archival tumor tissue samples will be analyzed for ancillary studies. The primary endpoint is progression-free survival (PFS) according to RECIST v1.1. The sample size provides at least 80% power to demonstrate statistical significance of treatment differences on PFS based on the protocol assumption. The study uses an event-driven analysis, where the analysis will be performed once the prespecified number of events is reached. Secondary outcome measures include overall response rate, overall survival, safety (adverse events [AEs] and treatment-related AEs], and quality of life (assessed using the EORTC QLQ-C30).
Results: The LEVEL trial has received institutional review board/ethics committee approval, and site start-up is ongoing.
Conclusion: The results of this trial are anticipated to provide evidence regarding the efficacy, safety and effect on quality of life of 177Lu-edotreotide in patients with advanced lung and thymic NET. The study is designed to demonstrate superiority of 177Lu-edotreotide compared to everolimus and may emerge as a new treatment option for this underserved patient population.
Abstract ID 23654
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Endocrine Abstracts
ISSN 1470-3947 (print) | ISSN 1479-6848 (online)
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