Clinical Trials Logo

Clinical Trial Summary

This is a non-randomized phase II , open label, comparative study. Patients with advanced non-resectable and/or progressive gastro-entero-pancreatic Neuroendocrine Tumours - GEP-NET, (G1, G2 and G3), Broncho-pulmonary Carcinoids (BPCs Atypical-AC or Typical-TC), pheochromocytoma/paraganglioma (PPGLs) and neuroendocrine tumours of unknown primary (NET-CUP) with overexpression of somatostatin receptor (SSTR positive) will be enrolled in the study and will be treated using Peptide Receptor Radionuclide Therapy (PRRT) initially with Yttrium-90 (90Y) DOTATATE (DOTA-0-Tyr3-Octreotate), and then compare to Lutecium-177 (177Lu) DOTATATE or mix of both Yttrium-90 (90Y) and Lutecium-177 (177Lu) DOTATATE. Total maximum activity for Yttrium-90 up to 4x3,7GBq, for Lutecium-177 up to 4x5,55GBq (Lu-177) and for both (mix) 4x3,7GBq (90Y and 177Lu 50% each).


Clinical Trial Description

This is a non-randomized phase II, open-label, comparative study. Patients with advanced, unresectable and/or progressive Gastro-Entero-Pancreatic Neuroendocrine Tumors - GEP-NET, (histological grade G1, G2 and G3), Broncho-Pulmonary Carcinoids (BPCs), including typical carcinoid (AC) and typical carcinoid (TC), pheochromocytoma/paragangliomas (PPGLs) and neuroendocrine tumors (cancers) of unknown primary (NET-CUP). All with overexpression of somatostatin receptor (SSTR positive) based on somatostatin receptor imaging (scintigraphy or PET), will be enrolled in this study.

Initially patients will be assigned to single arm of PRRT using yttrium-90 (90Y) DOTATATE (DOTA-0-Tyr3-Octreotate) and then patients will be non-randomly assigned to one of the two groups lutecium-177 (177Lu) DOTATATE or mix yttrium (90Y) DOTATATE and lutecium-177 (177Lu) DOTATATE (50% each). The dosages (total activity used in each group of treated patients will be as follows:

1. Total activity of 90Y DOTATATE 4x3,7GBq (14,8 GBq) for 4 cycles at 8 ± 2 weeks (400mCi)

2. Total activity of 177Lu DOTATATE 4x5,55GBq (22,2 GBq for 4 cycles at 8 ± 2 weeks (600 mCi)

3. Total activity of mix both 90Y DOTATATE and 177Lu DOTATATE (50 each) 4x3,7 GBq for 4 cycles at 8 ± 2 weeks (400mCi).

The non-randomized, phase II study design, allows for proposed initial active treatment arm using standard dose of 90Y DOTATATE and experimental treatment arm which composed of two options of PRRT with lutecium-177 DOTATATE or mix 90Y and 177Lu DOTATATE. The experimental therapy arm will be consisting of randomly allocated patients.

Subjects including in this study will be evaluated in the mixed patients' population, including GEP-NET, bronchopulmonary carcinoid (BPCs), paraganglioma/pheochromocytomas (PPGLs) and NET of unknown origin (NET-CUP).

Estimates of the original goals of the study can be assessed for each scheme separately using a two-step design using an external standard for comparison (the investigator's previous published results include standard PRRT using 90Y DOTATATE in subjects with GEP-NET).

Although the sample size in this study is not based on any specific statistical hypothesis to compare separate groups of patients those with PRRT using 90Y DOTATATE, next those with 177Lu DOTATATE and those who will receive mix 90Y and 177Lu DOTATATE.

This study design allows an objective set of clinical efficacy results in terms of PRRT responses and safety in these three treatment regimens in the same patient population, even different groups of tumors, which may be useful when planning next generation of the clinical trial using PRRT. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04029428
Study type Interventional
Source University of Warmia and Mazury
Contact Jaroslaw B Cwikla, MD, PhD
Phone +48602112599
Email jbcwikla@interia.pl
Status Recruiting
Phase Phase 2
Start date November 2, 2004
Completion date January 1, 2021

See also
  Status Clinical Trial Phase
Completed NCT01218555 - Study of Everolimus (RAD001) in Combination With Lenalidomide Phase 1
Recruiting NCT03412877 - Administration of Autologous T-Cells Genetically Engineered to Express T-Cell Receptors Reactive Against Neoantigens in People With Metastatic Cancer Phase 2
Withdrawn NCT04614766 - A Clinical Trial Evaluating the Safety of Combining Lutathera(R) and Azedra(R) to Treat Mid-gut Neuroendocrine Tumors Phase 1/Phase 2
Recruiting NCT05556473 - F-Tryptophan PET/CT in Human Cancers Phase 1
Completed NCT03273712 - Dosimetry-Guided, Peptide Receptor Radiotherapy (PRRT) With 90Y-DOTA- tyr3-Octreotide (90Y-DOTATOC) Phase 2
Recruiting NCT05636618 - Targeted Alpha-Particle Therapy for Advanced SSTR2 Positive Neuroendocrine Tumors Phase 1/Phase 2
Terminated NCT03986593 - Cryoablation of Bone Metastases From Endocrine Tumors N/A
Recruiting NCT04584008 - Targeted Agent Evaluation in Digestive Cancers in China Based on Molecular Characteristics N/A
Completed NCT02815969 - The Indol Profile; Exploring the Metabolic Profile of Neuroendocrine Tumors
Completed NCT02441062 - Impact of Ga-68 DOTATOC PET-CT Imaging in Management of Neuroendocrine Tumors Phase 2
Active, not recruiting NCT02174549 - Dose-defining Study of Tirapazamine Combined With Embolization in Liver Cancer Phase 1/Phase 2
Completed NCT02132468 - A Ph 2 Study of Fosbretabulin in Subjects w Pancreatic or Gastrointestinal Neuroendocrine Tumors w Elevated Biomarkers Phase 2
Completed NCT02134639 - PET-CT Imaging of Neuro-endocrine Tumors and Preliminary Clinical Evaluation N/A
Recruiting NCT01201096 - Neo-adjuvant Peptide Receptor Mediated Radiotherapy With 177Lutetium in Front of Curative Intended Liver Transplantation in Patients With Hepatic Metastasis of Neuroendocrine Tumors (NEO-LEBE) N/A
Terminated NCT01163526 - Perfusion CT as a Predictor of Treatment Response in Patients With Hepatic Malignancies N/A
Completed NCT01099228 - Combination Targeted Radiotherapy in Neuroendocrine Tumors N/A
Completed NCT00171873 - Antiproliferative Effect of Octreotide in Patients With Metastasized Neuroendocrine Tumors of the Midgut Phase 3
Active, not recruiting NCT05077384 - Open-label Study of Surufatinib in Japanese Patients Phase 1/Phase 2
Active, not recruiting NCT04544098 - Lutathera in People With Gastroenteropancreatic (GEP), Bronchial or Unknown Primary Neuroendocrine Tumors That Have Spread to the Liver Early Phase 1
Active, not recruiting NCT02736500 - Peptide Receptor Radionuclide Therapy With 177Lu-Dotatate Associated With Metronomic Capecitabine In Patients Affected By Aggressive Gastro-Etero-Pancreatic Neuroendocrine Tumors Phase 1/Phase 2