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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT02736500
Other study ID # IRST100.19
Secondary ID
Status Active, not recruiting
Phase Phase 1/Phase 2
First received
Last updated
Start date September 2, 2015
Est. completion date June 2021

Study information

Verified date February 2021
Source Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial 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.


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.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 37
Est. completion date June 2021
Est. primary completion date April 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility 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.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
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.
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

Locations

Country Name City State
Italy Giovanni Paganelli Meldola FC
Italy Lisa Bodei Milan

Sponsors (2)

Lead Sponsor Collaborator
Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori Istituto Europeo di Oncologia IEO MILANO

Country where clinical trial is conducted

Italy, 

Outcome

Type Measure Description Time frame Safety issue
Primary Objective Overall Response Rate rate of objective clinical response (complete response (CR), partial response (PR), or minor response (MR) according to RECIST criteria up to 24 months
Primary toxicity rate The rate of toxicity, either acute or delayed, according to NCI criteria, of the association 177Lu-DOTATATE and metronomic capecitabine. up to 24 months
Secondary Progression free survival in association with histopathology characteristics evaluation of the PFS and the possible association between histopathology characteristics (grading and proliferation index) up to 24 months
Secondary Progression free survival in association with the receptor and metabolic status at OctreoScan and FDG PET Progression free survival in association with the receptor and metabolic status at OctreoScan and FDG PET up to 24 months
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