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Midgut Neuroendocrine TumorsGENEBIOLuNETNCT03667092

Exploration of Molecular Biomarkers for Lu-177 DOTATATE Therapy in Midgut Neuroendocrine Tumor

A study testing non-drug intervention type in people with Midgut Neuroendocrine Tumors, run by University Hospital, Toulouse at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Midgut neuroendocrine tumours present an increasing incidence and poor survival at 5 years with limited therapeutic options for metastatic, non-operable cases. Lu-177 Dotatate, targeting somatostatin receptors, is an internal vectorized radiotherapy using Lu-177, an ideal radionuclide for peptide radionuclide therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Midgut Neuroendocrine Tumors
What is being tested?
non-drug intervention type
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
47 participants
Where
1 siteFrance
Study dates
1 Sep 2018to 22 May 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients ≥18 years old; histopathologically confirmed grade 1-2 midgut neuroendocrine tumor with documented progression during the year preceding inclusion upon RECIST criteria on computerized tomography, Octreoscan or Ga-68 positron emission tomography/computerized tomography
  • Patients having an indication for Lu-177 Dotatate treatment validated during multidisciplinary meeting coordinated by Pr Rosine Guimbaud under RENATEN coordination;
  • Measurable target lesions upon RECIST criteria
  • Patients on somatostatin analogues treatment. Every somatostatin analogue injection should be organized to be administered 24 to 48 hours after each injection of Lu-177 Dotatate.
  • All patients should be in a clinical state allowing them to continue treatment.
  • Social security affiliation is mandatory.

Who cannot join

  • Patients on chemotherapy or other targeted therapy within the 4 months preceding peptide receptor radionuclide therapy
  • Fertile patients refusing active contraception ; pregnancy.
  • Patients with prior chemotherapy or peptide receptor radionuclide therapy administration
  • Patients with uncontrollable psychotic disorders
  • Renal hepatic and medullary insufficiency

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU de Toulouse

    Toulouse, France, 31059

Other trials in France

About this study

Official title: Pilot Study for Measuring Molecular Biomarkers and Their Capacity to Characterize Radionuclide Therapy With Lu-177 DOTATATE) in Metastatic G1-G2 Neuroendocrine Midgut Tumors

Midgut neuroendocrine tumours present an increasing incidence and poor survival at 5 years with limited therapeutic options for metastatic, non-operable cases. Lu-177 Dotatate, targeting somatostatin receptors, is an internal vectorized radiotherapy using Lu-177, an ideal radionuclide for peptide radionuclide therapy. In NETTER-1 phase III randomized clinical trial, Lu-177 Dotatate proved its superiority in increasing progression free survival for midgut neuroendocrine tumors. This study hypothesize that finding biomarkers of individual radio sensitivity for this type of internal vectorized therapy would allow treatment personalization. The protocol aim at studying transcript variations induced by this therapy.

Read the detailed description

Internal vectorized therapy using Lu-177 Dotatate (abbreviated peptide receptor radionuclide therapy) was recently shown to improve progression free survival and response in metastatic progressive midgut neuroendocrine tumors (NETTER-1 phase III trial).

Lu-177 Dotatate is administered as a series of four consecutive intra veinous injections of an activity of 7.4 gigabequerel every 8 weeks.

In order to identify potential biomarkers of radio sensitivity to Lu-177 Dotatate, investigators aim to study the stability of gene/miRNA transcripts in the absence of Lu-177 Dotatate or at 6 months after treatment as well as the variations in transcript analysis after 2 Lu-177 Dotatate injections and at the end of the treatment.

Transcript variation analysis will be confronted and correlated with peripheral blood pharmacokinetic studies aimed at calculating time activity curves and provide biodosimetry information; other correlations with imaging modalities assessment of dosimetry or disease response to treatment or toxicity effects induced by Lu-177 Dotatate will also be studied.

Being tested
non-drug intervention type
Keywords
Lu-177 Dotatate, transcript analysis and variation, molecular biomarkers, midgut neuroendocrine tumors

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • non-drug intervention typeBiological

    Also called Blood samples

    8 peripheral blood samples (8x5ml) will be obtained at different times ; before, during and after treatment

Study groups in NCT03667092
Study groupRoleWhat they receive
Non-drug intervention typeExperimentalExploration of gene transcript variation on seriate blood samples before treatment, before and after the 2nd and the 4th Lu-Dotatate injection and before and after the 6 month post treatment follow-up. Measures of stability and reproducibility of selected gene transcripts and miRNA as radio sensitivity genes or progressive metastatic midgut neuroendocrine tumors genetic signatures before and during Lu-177 Dotatate internal vectorized therapy, as well as on the 6-month follow-up.
Receives: Biological: non-drug intervention type

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Peptide receptor radionuclide therapy radio-induction variation of radiosensibility/reparation genes

    Variations in gene transcripts will be registered and processed by a bio-informatician

    Measured: Change from before at during treatment

Secondary outcomes (3)
  1. Evaluation of gene transcript variations

    Analysis of gene transcript variation by quantitative real-time polymerase chain reaction

    Measured: during treatment and until 48 hours after treatment

  2. Evaluation of interindividual variability with NONMEN software

    Analysis of Lu-177 DOTATATE plasma concentration during treatment and 48 hours after treatment

    Measured: during treatment and until 48 hours after treatment

  3. Evaluation of therapeutic response according to RECIST criteria

    Correlation between gene variations and the therapeutic response assessed on RECIST criteria

    Measured: 6 months post therapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Sep 2018
  2. Study start1 Sep 2018
  3. Primary completion22 May 2024
  4. Study completion22 May 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03667092
Sponsor's protocol ID
RC31/17/0356
Acronym
GENEBIOLuNET
Status last verified
Apr 2025
First submitted
27 Jul 2018
Last updated
10 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Jacques V, Dierickx L, Texier JS, Brillouet S, Courbon F, Guimbaud R, Vija L, Savagner F. Evaluation of a blood miRNA/mRNA signature to follow-up Lu-PRRT therapy for G1/G2 intestinal neuroendocrine tumors. Front Endocrinol (Lausanne). 2024 Jun 14;15:1385079. doi: 10.3389/fendo.2024.1385079. eCollection 2024.

    PubMed 38948517

Questions about this trial

What is this clinical trial studying?

A study testing non-drug intervention type in people with Midgut Neuroendocrine Tumors, run by University Hospital, Toulouse at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 10 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Peptide receptor radionuclide therapy radio-induction variation of radiosensibility/reparation genes (time frame: Change from before at during treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03667092, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Apr 2025.

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