Promising drug combo shows hope for slowing rare gut tumors
NCT ID NCT03972488
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether adding Lutathera to standard octreotide treatment can delay tumor growth in people with advanced neuroendocrine tumors of the stomach, intestines, or pancreas. The trial involved 226 patients with fast-growing tumors (grades 2 and 3) who had not received prior treatment. Results focus on how long the cancer stays under control and tumor shrinkage rates.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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226 people
The number who actually took part.
- Started
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Jan 2020
- Expected to finish
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Oct 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Presence of metastasized or locally advanced, inoperable (curative intent) histologically proven, well differentiated Grade 2 or Grade 3 gastroenteropancreatic neuroendocrine (GEP-NET) tumor diagnosed within 6 months prior to screening. * Ki67 index ≥10 and ≤ 55% * Patients ≥ 15 years of age and a body weight of \> 40 kg at screening * Expression of somatostatin receptors on all target lesions documented by CT/MRI scans, assessed by any of the following somatostatin receptor imaging (SRI) modalities within 3 months prior to randomization: \[68Ga\]-DOTA-TOC (e.g. Somakit-TOC®) PET/CT (or MRI when applicable based on target lesions) imaging, \[68Ga\]-DOTA-TATE PET/CT (or MRI when applicable based on target lesions) imaging (e.g. NETSPOT®), Somatostatin Receptor scintigraphy (SRS) with \[111In\]-pentetreotide (Octreoscan® SPECT/CT), SRS with \[99mTc\]-Tektrotyd, \[64Cu\]-DOTA-TATE PET/CT (or MRI when applicable based on target lesions) imaging. * The tumor uptake observed in the target lesions must be \> normal liver uptake. * Karnofsky Performance Score (KPS) ≥ 60 * Presence of at least 1 measurable site of disease * Patients who have provided a signed informed consent form to participate in the study, obtained prior to the start of any protocol related activities Exclusion Criteria: * Creatinine clearance \< 40 mL/min calculated by the Cockroft Gault method * Hb concentration \< 5.0 mmol/L (\<8.0 g/dL); WBC \< 2x10E9/L (2000/mm3); platelets \< 75x10E9/L (75x10E3/mm3) * Total bilirubin \> 3 x ULN * Serum albumin \< 3.0 g/dL unless prothrombin time is within the normal range * Pregnancy or lactation * Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, are not allowed to participate in this study UNLESS they are using highly effective methods of contraception throughout the study treatment period (including cross-over and re-treatment, if applicable) and for 7 months after study drug discontinuation * Peptide receptor radionuclide therapy (PRRT) at any time prior to randomization in the study. * Documented RECIST progression to previous treatments for the current GEP-NET at any time prior to randomization * Patients for whom in the opinion of the investigator other therapeutic options (eg chemo-, targeted therapy) are considered more appropriate than therapy offered in the study, based on patient and disease characteristics * Any previous therapy with Interferons, Everolimus (mTOR-inhibitors), chemotherapy or other systemic therapies for GEP-NET administered for more than 1 month or within 12 weeks prior to randomization in the study. * Any previous radioembolization, chemoembolization and radiofrequency ablation for GEP-NET * Any surgery within 12 weeks prior to randomization in the study * Known brain metastases, unless these metastases have been treated and stabilized for at least 24 weeks, prior to screening in the study. Patients with a history of brain metastases must have a head CT or MRI with contrast to document stable disease prior to randomization in the study. * Uncontrolled congestive heart failure (NYHA II, III, IV). Patients with history of congestive heart failure who do not violate this exclusion criterion will undergo an evaluation of their cardiac ejection fraction prior to randomization via echocardiography. The results from an earlier assessment (not exceeding 30 days prior to randomization) may substitute the evaluation at the discretion of the Investigator, if no clinical worsening is noted. The patient's measured cardiac ejection fraction in these patients must be ≥40% before randomization. * QTcF \> 470 msec for females and QTcF \> 450 msec for males or congenital long QT syndrome * Uncontrolled diabetes mellitus as defined by hemoglobin A1c value \> 7.5% * Hyperkaleamia \> 6.0 mmol/L (CTCAE Grade 3) which is not corrected prior to study enrolment * Any patient receiving treatment with short-acting octreotide, which cannot be interrupted for 24 h before and 24 h after the administration of Lutathera, or any patient receiving treatment with SSAs (e.g. octreotide long-acting), which cannot be interrupted for at least 6 weeks before the administration of Lutathera. * Patients with any other significant medical, psychiatric, or surgical condition, currently uncontrolled by treatment, which may interfere with the completion of the study. * Prior external beam radiation therapy to more than 25% of the bone marrow. * Current spontaneous urinary incontinence * Other known co-existing malignancies except non-melanoma skin cancer and carcinoma in situ of the uterine cervix, unless definitively treated and proven no evidence of recurrence for 5 years * Patient with known incompatibility to CT Scans with IV contrast due to allergic reaction or renal insufficiency. If such a patient can be imaged with MRI, then the patient would not be excluded. * Hypersensitivity to any somatostatin analogues, the IMPs active substance or to any of the excipients. * Patients who have participated in any therapeutic clinical study/received any investigational agent within the last 30 days
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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A.O.di Bologna Policl.S.Orsola
Bologna, Italy
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Arcispedale Santa Maria Nuova, Reggio Emilia - Oncology
Reggio Emilia, Italy
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Asan Medical Center - Oncology
Seoul, South Korea
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Azienda Ospedaliera Sant'Andrea - Università La Sapienza U.O.C. Mal App. Digerente e - Oncology
Roma, Italy
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BC Cancer Agency
Vancouver, Canada
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Bristol Haematology and Oncology Centre
Bristol, United Kingdom
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CHU Paris Nord-Val de Seine
Clichy, France
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CHU-Hôtel Dieu Service de Médecine Nucléaire
Nantes, France
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Centre Hospitalier Universitaire de Quebec
Québec, Canada
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Erasmus Medisch Centrum
Rotterdam, Netherlands
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Fondazione Irccs Istituto Nazionale Tumori
Milan, Italy
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Guys And St Thomas Hospital
London, United Kingdom
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Hospices Civils de Lyon (HCL) - Hopital Edouard Herriot
Lyon, France
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Hospital General Universitario Gregorio Marañón
Madrid, Spain
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Hospital Universitari i Politecnic La Fe
Valencia, Spain
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Hospital Universitario Ramón y Cajal
Madrid, Spain
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Hospital Universitario Vall d'Hebrón
Barcelona, Spain
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IRCCS fondazione Pascale - Oncology
Naples, Italy
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Ieo, Irccs
Milan, Italy
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Institut Gustave Roussy
Villejuif, France
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Institut du Cancer de Montpellier - Oncology
Montpellier, France
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Istituto Oncologico Romagnolo
Meldola, Italy
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Kings College Hospital - Oncology
London, United Kingdom
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London Health Sciences Centre, University of Western Ontario - Oncology
London, Canada
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MD Anderson Cancer Center
Houston, Texas, 77030, United States
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Mayo Clinic - Oncology
Rochester, Minnesota, 55905, United States
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Royal Free Hospital, London
London, United Kingdom
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Seoul National University Bundang Hospital
Seongnam-si, South Korea
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Seoul National University Hospital - Department of Internal Medicine
Seoul, South Korea
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Severance Hospital, Yonsei University Health System - Medical Oncology
Seoul, South Korea
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Sunnybrook Health Sciences Centre
Toronto, Canada
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UMC Utrecht - Oncology
Utrecht, Netherlands
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USF - H. Lee Moffitt Cancer Center and Research Institute
Tampa, Florida, 33612, United States
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University of Genova - Oncology
Genova, Italy
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University of Iowa Hospitals and Clinics - Oncology
Iowa City, Iowa, 52242, United States
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University of Kentucky UK Markey Cancer Center
Lexington, Kentucky, 40536, United States
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Universitätsklinikum Erlangen
Erlangen, Germany
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Universitätsklinikum Essen - Klinik für Nuklearmedizin
Essen, Germany
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Weston Park Hospital
Sheffield, United Kingdom
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Yale Cancer Center
New Haven, Connecticut, 06520, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Swiss registry aims to map rare neuroendocrine tumors
- Can a black seed extract boost immunotherapy against a rare cancer?
- One dose may not fit all: blood tests could tailor cancer drug dosing
- German study reveals Real-World use of PRRT for neuroendocrine tumors
- Massive study to map Real-World GEP-NET care
- Could a liver artery shot make cancer treatment more effective?