Overview

This trial is active, not recruiting.

Conditions neuroendocrine tumors, gastro entero pancreatic neuroendocrine tumors
Treatments 28 gbq 177lu-dotatate, 22 gbq 177lu-dotatate
Phase phase 1/phase 2
Sponsor Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori
Collaborator Istituto Europeo di Oncologia IEO MILANO
Start date July 2015
End date July 2017
Trial size 37 participants
Trial identifier NCT02736500, IRST100.19

Summary

The aim of this phase I-II study is to evaluate the efficacy and toxicity of PRRT with 177Lu-DOTATATE (Lu-PRRT) associated to metronomic chemotherapy with Capecitabine in patients affected by aggressive FDG-positive gastro-entero-pancreatic NET. Moreover to analyze the effects of the capecitabine metronomic schedule on the level of circulating angiogenetic factors.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation non-randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking open label
Primary purpose treatment
Arm
(Experimental)
5 cycles of 5.5 GBq (150 mCi) each, up to the total cumulative activity of 28 GBq (750 mCi) 177Lu-DOTATATE
28 gbq 177lu-dotatate
Patients without risk factors (particularly long standing and poorly controlled diabetes and hypertension) for late renal toxicity will be administered with 5 cycles of 5.5 GBq (150 mCi) each, up to the total cumulative activity of 28 GBq (750 mCi) of 177Lu-DOTATATE.
(Experimental)
6 cycles of 3.7 GBq (100 mCi) each, up to the total cumulative activity of 22 GBq (600 mCi) 177Lu-DOTATATE
22 gbq 177lu-dotatate
Patients with risk factors for late renal toxicity will be administered with 6 cycles of 3.7 GBq (100 mCi) each, up to the total cumulative activity of 22 GBq (600 mCi)177Lu-DOTATATE

Primary Outcomes

Measure
Objective Overall Response Rate
time frame: up to 24 months
toxicity rate
time frame: up to 24 months

Secondary Outcomes

Measure
Progression free survival in association with histopathology characteristics
time frame: up to 24 months
Progression free survival in association with the receptor and metabolic status at OctreoScan and FDG PET
time frame: up to 24 months

Eligibility Criteria

Male or female participants at least 18 years old.

Inclusion Criteria: - Histopathologic diagnosis of inoperable or metastatic gastro-entero-pancreatic neuroendocrine neoplasia. - Conserved hematological, liver and renal parameters: haemoglobin >= 10 g/dL, absolute neutrophil count (ANC) >= 1.5 x 109 /L, platelets >= 100 x 109 /L, bilirubin ≤1.5 X UNL (upper normal limit), ALT <2.5 X UNL (< 5 X UNL in presence of liver metastases), creatinine < 2 mg/dL. - Age more than 18 years. - Patients with documented disease will be admitted to therapeutic phase only if the diagnostic receptor imaging (OctreoScan) demonstrate a significant uptake in the tumor (grade 2 or 3, according to a preset scoring, where grade 1= equal to normal liver, grade2 = higher than normal liver, grade 3= higher than kidneys and spleen), that may allow delivering a low absorbed dose to normal organs and a high dose to the tumor. - Patients with documented disease will be admitted to therapeutic phase only if the 18FDG PET/CT is positive with a SUV > 2.5 at least in one documented lesion. - Disease must be measurable by means of conventional imaging (CT or MRI). - Before treatment clinical history data will be collected, physical examination will be performed and diagnostic and laboratory data will be examined. - Patients must not receive other treatments (e.g. chemo- or radiotherapy) from one month before to two months after the completion of 177Lu-DOTATATE cycles. - Patients must be naive from previous radionuclide treatments with radiopeptides (e.g. 111Inpentetreotide, 90Y-DOTATOC) or other radiopharmaceuticals (e.s. 131I-MIBG, 131I). Exclusion Criteria: - Pregnancy/breastfeeding (a pregnancy test not older than 7 days is mandatory). - Assessed bone marrow invasion > 25%. - Other concomitant neoplasm (excluding in situ basaliomas and radically treated cervical cancers). - ECOG score higher than 2. - Expectancy of life shorter than 6 months. - Patients with psycho-physical conditions that are not suitable for entering this clinical study and fulfilling its requirements.

Additional Information

Official title Peptide Receptor Radionuclide Therapy With 177Lu-Dotatate Associated With Metronomic Capecitabine In Patients Affected By Aggressive Gastro-Etero-Pancreatic Neuroendocrine Tumors
Principal investigator Giovanni Paganelli, MD
Description Neuroendocrine tumors (NETs) are relatively rare tumors, mainly originating from the digestive system, able to produce bioactive amines and hormones. NETs tend to be slow growing and are often diagnosed when metastatic. Treatment is multidisciplinary and should be individualized according to the tumor type, burden, and symptoms. Therapeutic tools include surgery, interventional radiology, and medical treatments such as somatostatin analogues, interferon, chemotherapy, new targeted drugs (everolimus, sunitinib) with radiolabelled somatostatin analogues. Despite the options available, antiproliferative treatment options for patients with inoperable gastro-entero-pancreatic (GEP) NETs are limited. PRRT with radiolabelled somatostatin analogues 90Y-DOTATOC, and 177Lu-DOTATATE (177Lu-DOTA-D-Phe1-Tyr3-octreotate), has been experimented for more then 15 years in few centers. The introduction of PRRT and, particularly, the advent of 177Lu-DOTATATE, broke through the poor scenario of available treatment for NETs. Dosimetric studies demonstrated that 90Y-DOTATOC and 177Lu-DOTATATE are able to deliver high radiation doses to somatostatin receptor sst2-expressing tumors and low doses to normal organs. Clinical studies demonstrated that partial and complete objective responses in up to 30% of patients can be obtained, with a great survival benefit including those with stable disease. Side effects may involve the kidney and the bone marrow and are usually mild. Renal protection is used to minimize the risk of a late decrease of renal function. Recently, in order to further increase the objective response to PRRT, a combined treatment with the radiosensitizer capecitabine, has been proposed and tested on GEP-NET patients' population. Capecitabine is the oral prodrug of 5-fluorouracile (5-FU), which is active in GEP tumors and a radiosensitizer itself. The finding that neo-angiogenesis can be shut down also with cytotoxic drugs like capecitabine when administered in low and frequent doses, constitutes the rationale for proposing a particular schedule of chemotherapy that is, therefore, named "metronomic" or "anti-angiogenic". Based on the reported experience, the investigators think to offer a combined therapy in aggressive, metabolically active tumors, such as those patients with a positive FDG scan. FDG-PET allow the investigators to obtain in vivo imaging of increased glycolysis which is known to be an hallmark of tumor aggressiveness. The aim of this phase I-II study is to evaluate the efficacy and toxicity of PRRT with 177Lu-DOTATATE (Lu-PRRT) associated to metronomic chemotherapy with Capecitabine in patients affected by aggressive FDG-positive gastro-entero-pancreatic NET. Moreover to analyze the effects of the capecitabine metronomic schedule on the level of circulating angiogenetic factors.
Trial information was received from ClinicalTrials.gov and was last updated in September 2016.
Information provided to ClinicalTrials.gov by Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori.