Sequentiality Of Everolimus And STZ-5FU In Advanced Pancreatic Neuroendocrine Tumor

Study Overview

Sequentiality of Everolimus and STZ-5FU in Advanced Pancreatic Neuroendocrine Tumor

The purpose of this study is to compare streptozotocin (STZ) vs everolimus as first line treatment for advanced pNET and to elucidate which sequence of STZ based chemotherapy and the mammalian Target of Rapamycin (mTOR) inhibitor, everolimus, gives better results in terms of second Progression Free Survival (PFS) in well differentiated and advanced pancreatic NETs.

STZ plus 5-Fuorouracil (5FU) is the actual standard of care for advanced pancreatic Neuroendocrine tumours (pNETS) in the European Union. Everolimus has been recently approved for its use in advanced pNETs by the Food and Drug Administration (FDA) and in Europe by the European Medical Agency (EMA). A randomized study is needed to have a clear knowledge about the best sequence for its administration; this is, before or after palliative chemotherapy. There may or may not be any benefits from giving first each other treatment of the study. The information obtained from this study will help the physician improve the treatment and management of patients with advanced pNET. This study was planned to compare STZ-5FU chemotherapy followed by everolimus upon progression versus the reverse sequence. However sequential studies with pNETs are hard to be managed in terms of time and costs. Therefore the protocol was amended to have PFS1 (progression free survival after course 1) as primary endpoint and PFS2 (i.e. progression free survival after both STZ based chemotherapy and Everolimus or the reverse order) as secondary endpoint. This information will be extremely valuable for the day to day clinical practice of pNETs oncologists

Neuroendocrine Tumors

DRUG: Drug: Everolimus
DRUG: STZ-5FU

GETNE1206
2013-000726-66 (EUDRACT_NUMBER Identifier) (EUDRACT_NUMBER: )

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates	Results Reporting Dates	Study Record Updates
First Submitted 2014-08-20	Results First Submitted 2025-02-24	Last Update Submitted that met QC Criteria 2025-05-09
First Submitted that Met QC Criteria 2014-09-18	Results First Submitted that Met QC Criteria 2025-05-09	Last Update Posted (ACTUAL) 2025-05-11
First Posted (ACTUAL) 2014-09-22	Results First Posted 2025-05-11	Last Verified 2025-05

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

Design Details

Primary Purpose:
Treatment

Allocation:
Randomized

Interventional Model:
Crossover

Masking:
None

Arms and Interventions

Participant Group/Arm	Intervention/Treatment
ACTIVE_COMPARATOR: Sequence A, drug: everolimus first Everolimus (10mg/daily, oral) followed by STZ-5FU (injection/infusion; Moertel or Uppsala regime).	DRUG: Drug: Everolimus 10mg/daily, oral. Number of Cycles: until progression or unacceptable toxicity develops. DRUG: STZ-5FU 0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-5 every 6 weeks (Moertel) or 0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-3, and then 1 day with 1g/m2 and 1 day 400mg/m2 5-FU every 3 weeks (Uppsala). Number of Cycles: until progression or unac
EXPERIMENTAL: Sequence B, drug: STZ - 5FU first STZ-5FU (injection/infusion; Moertel or Uppsala regime) followed by Everolimus (10 mg/ daily, oral)	DRUG: Drug: Everolimus 10mg/daily, oral. Number of Cycles: until progression or unacceptable toxicity develops. DRUG: STZ-5FU 0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-5 every 6 weeks (Moertel) or 0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-3, and then 1 day with 1g/m2 and 1 day 400mg/m2 5-FU every 3 weeks (Uppsala). Number of Cycles: until progression or unac

Participant Group/Arm

Intervention/Treatment

ACTIVE_COMPARATOR: Sequence A, drug: everolimus first

Everolimus (10mg/daily, oral) followed by STZ-5FU (injection/infusion; Moertel or Uppsala regime).

DRUG: Drug: Everolimus

10mg/daily, oral. Number of Cycles: until progression or unacceptable toxicity develops.

DRUG: STZ-5FU

0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-5 every 6 weeks (Moertel) or 0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-3, and then 1 day with 1g/m2 and 1 day 400mg/m2 5-FU every 3 weeks (Uppsala). Number of Cycles: until progression or unac

EXPERIMENTAL: Sequence B, drug: STZ - 5FU first

STZ-5FU (injection/infusion; Moertel or Uppsala regime) followed by Everolimus (10 mg/ daily, oral)

DRUG: Drug: Everolimus

10mg/daily, oral. Number of Cycles: until progression or unacceptable toxicity develops.

DRUG: STZ-5FU

0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-5 every 6 weeks (Moertel) or 0,5g/m2 STZ on days 1-5 and 400mg/m2 5-FU on days 1-3, and then 1 day with 1g/m2 and 1 day 400mg/m2 5-FU every 3 weeks (Uppsala). Number of Cycles: until progression or unac

Primary Outcome Measures	Measure Description	Time Frame
First Progression Free Survival (PFS1)	Proportion of patients who are alive without progression to Course 1 from the date of randomization in STZ based CT vs Everolimus arms Definitions for PFS rate for course 1 at 12 months: * No: number (proportion) of patients who were not alive and progression free according to the respective definition (main, conservative, and optimistic); * Yes: number (proportion) of patients who were alive and progression free according to the respective definition (main, conservative, and optimistic).	At 12 months

Secondary Outcome Measures	Measure Description	Time Frame
Second Progression Free Survival (Second PFS)	PFS of Course 1 (PFS1) + interval between treatments + PFS of Course 2 (PFS2), where PFS1 represents progression free survival of Course 1 and PFS2 represents progression free survival of Course 2	Until the end of study every 12 weeks, approximately up to 5 years
Progression-free Survival (PFS) to First Treatment	Time from the date of randomization to the date of first disease progression.	Throughout the study period every 12 weeks, approximately up to 5 years
Adverse Events (AEs) Rate	Number of patients expiriencing adverse events, treatment-related AEs and serious adverse events (SAEs)	Throughout the study period in continous monitoring at every visit for approximately up to 5 years
Frequency of Dose Modifications to First Treatment	Percentage of patients who require a dose reduction or interruption for management of adverse events during the study period	Throughout the study period, approximately up to 5 years
Best Overall Response (BOR) to First Study Treatment	Best response achieved with the first study treatment according to RECIST V1.0	Throughout the study period, every 12 weeks up to approximately 5 years
Objective Response Rate (ORR) to First Study Treatment	The ORR is defined as the number of patients having as their BOR to first treatment either Complete response (CR) or Partial Response (PR) measured by RECIST criteria version 1.0.	Throughout the study period every 12 weeks, up to approximately 5 years
Frequency of Dose Modifications to Second Treatment	Percentage of patients who require a dose reduction or interruption for management of adverse events during the study period	Throughout the study period, approximately up to 5 years
Overall Survival (OS)	The median OS defined as the time from the date of randomization until death from any cause. This is estimated by kaplan meier method.	Throughout the study period, up to approximately 5 years
Best Overall Response (BOR) to Second Study Treatment	Best response achieved with the second study treatment according to RECIST V1.0	Throughout the study period, every 12 weeks up to approximately 5 years
Objective Response Rate (ORR) to Second Study Treatment	The ORR is defined as the number of patients having as their BOR to second treatment either Complete response (CR) or Partial Response (PR) measured by RECIST criteria version 1.0.	Throughout the study period every 12 weeks, up to approximately 5 years
Progression-free Survival (PFS) to Second Treatment	Time from the date of first dose of second treatment to the date of second disease progression.	Throughout the study period every 12 weeks, approximately up to 2 years

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person’s general health condition or prior treatments.

Ages Eligible for Study:
ALL

Sexes Eligible for Study:
18 Years

Accepts Healthy Volunteers:

Histologically proven diagnosis of unresectable or metastatic, advanced pancreatic NET.
Documented confirmation of pancreatic NET G1 or G2 as per European Neuroendocrine Society (ENETS) classification system.
Patients from whom a paraffin-embedded primary tumour or metastasis block is available and to be sent by Courier.
Before study inclusion, patients must show progressive disease documented by radiology 12 months prior to study inclusion. Treatment naive patients can be also included if the patient needs active treatment with either chemotherapy or everolimus.
Presence of measurable disease as per Response Evaluation Criteria in Solid Tumors (RECIST) criteria 1.0, documented by a Triphasic Computed Tomography (CT) scan or multiphase MRI radiological assessment.
Previous treatment with somatostatin (SS) analogues is allowed. Only those patients with active functioning syndrome at entry can continue with SS analogues during the study.
Adequate bone marrow and renal functions, and serum fasting cholesterol
Women with child-bearing potential must have a negative serum pregnancy test.
Written Informed Consent obtained according to local regulations

Previous treatment with chemotherapy and/or mTOR inhibitors or tyrosine kinase inhibitors.
Immune therapy or radiation therapy within 4 weeks prior to the patient entering the study.
Hepatic artery embolization within the last 6 months (1 month if there are other sites of measurable disease), or cryoablation/radiofrequency ablation of hepatic metastasis within 2 months of enrolment.
Previous treatment with Peptide-Receptor Radionuclide Therapy (PRRT) within the last 6 months and/or without progression following PRRT.
Uncontrolled diabetes mellitus.
Any severe and/or uncontrolled medical conditions.
Treatment with potent inhibitors or inducers of Cytochrome P450 3A4 (CYP3A) isoenzyme within 5 days immediately before the start of treatment.
Patients on chronic treatment with corticosteroids or any other immunosuppressive agent.
Patients known to be HIV seropositive.
Known intolerance or hypersensitivity to everolimus or its excipients or other rapamycin analogues. Patients with rare hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicinal product.
Known intolerance or hypersensitivity to 5FU or STZ or its excipients (notice that this criterion includes patients with known deficit of dihydropyrimidine dehydrogenase deficiency -DPD).
Pregnant, lactating women or fertile adults not using effective birth control methods.
For administrative matters (insurance) patients ≥ 95 are not allowed during the trial.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

European Neuroendocrine Tumor Society
Kantar Health
Novartis Pharmaceuticals

Investigators

PRINCIPAL_INVESTIGATOR: Salazar Ramon, MD, PhD, Instituto Catalán de Oncologia, ICO-Hospitalet

Publications

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

No publications available

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