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Multicenter Study for External Validation of the TB-NET Score (TB-NET)

Multicentric Study for External Validation of the TB-NET Score

This is a retrospective, observational, multicenter study aiming to externally validate the TB-NET Score in an independent cohort of patients with advanced well-differentiated gastroenteropancreatic neuroendocrine tumors (GEP-NETs) or lung carcinoids. The primary objective is to validate the prognostic value of the TB-NET Score for progression-free survival (PFS). Secondary objectives include the evaluation of overall survival (OS), objective response rate (ORR), grade 3-4 adverse events, biochemical and functional imaging correlates, and the potential additional prognostic value of tumor growth rate (TGR).

Panoramica dello studio

Stato

Reclutamento

Condizioni

Descrizione dettagliata

This is a retrospective, observational, multicenter study designed to externally validate the TB-NET Score in an independent cohort of patients with advanced well-differentiated neuroendocrine tumors.

Eligible patients will include adults with histologically confirmed advanced well-differentiated gastroenteropancreatic neuroendocrine tumors (GEP-NETs) or typical or atypical lung carcinoids who have received systemic therapy. GEP-NETs may be grade 1, 2, or 3, provided that well-differentiated morphology is confirmed. Patients with poorly differentiated neuroendocrine carcinomas will be excluded.

The primary objective is to externally validate the prognostic value of the TB-NET Score for progression-free survival (PFS). Secondary objectives include the assessment of overall survival (OS), objective response rate (ORR), grade 3-4 adverse events, biochemical and functional imaging correlates, and evaluation of whether tumor growth rate (TGR) provides additional prognostic information for PFS.

A minimum of 200 patients is planned, with no predefined maximum sample size. Clinical, pathological, radiological, treatment, and outcome data will be retrospectively collected by participating centers and entered into a centrally coordinated electronic data capture system. Statistical analyses will be performed centrally by the Gastrointestinal Tumors Unit at Fundación Jiménez Díaz.

Only pseudonymized data will be shared for the purposes of the study. Data transfers between participating centers and the Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz (IIS-FJD) will be governed by appropriate data transfer agreements when required. The study has received approval from the Research Ethics Committee of Fundación Jiménez Díaz.

Tipo di studio

Osservativo

Iscrizione (Stimato)

400

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

    • São Paulo
      • São Paulo, São Paulo, Brasile, 01308-050
        • Reclutamento
        • Hospital Sírio-Libanês
        • Contatto:
      • Clichy, Francia, 92110
        • Reclutamento
        • Hôpital Beaujon
        • Contatto:
    • Bavaria
      • Erlangen, Bavaria, Germania, 91054
        • Reclutamento
        • Universitätsklinikum Erlangen
        • Contatto:
    • Lombardy
      • Milan, Lombardy, Italia, 20132
        • Reclutamento
        • IRCCS Ospedale San Raffaele
        • Contatto:
    • Lesser Poland Voivodeship
      • Krakow, Lesser Poland Voivodeship, Polonia, 30-688
        • Reclutamento
        • University Hospital in Kraków
        • Contatto:
          • Marta Opalinska, MD, PhD
          • Numero di telefono: +48 12 400 10 00
          • Email: mkal@vp.pl
    • Cantabria
      • Santander, Cantabria, Spagna, 39008
        • Reclutamento
        • Hospital Universitario Marqués de Valdecilla
        • Contatto:
    • Madrid
      • Madrid, Madrid, Spagna, 28040
        • Reclutamento
        • Hospital Universitario Fundación Jiménez Díaz
        • Contatto:
    • Massachusetts
      • Boston, Massachusetts, Stati Uniti, 02215
    • Skåne County
      • Malmö, Skåne County, Svezia, 214 28
    • Ankara
      • Ankara, Ankara, Turchia (Türkiye), 06080

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

Patients with histologically confirmed well differentiated advanced GEP-NETs or Lung Carcinoids starting any line of systemic therapy.

Descrizione

Inclusion Criteria:

  • Adult patients with histologically confirmed well differentiated advanced GEP-NETs or Lung Carcinoids starting any line of systemic therapy.
  • Grade 1, 2 or 3 if well-differentiated morphology for GEP-NETs. Typical or Atypical Lung Carcinoids.
  • At least one target lesion.

Exclusion Criteria:

  • Patients with Neuroendocrine Carcinomas.
  • Patients with no target lesions (according to RECIST 1.1 criteria).

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Modelli osservazionali: COHORT
  • Prospettive temporali: RETROSPECTIVE

Coorti e interventi

Gruppo / Coorte
Patients With Advanced Well-Differentiated NETs

Adult patients with histologically confirmed well differentiated advanced GEP-NETs or Lung Carcinoids starting any line of systemic therapy.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Progression-Free Survival (PFS)
Lasso di tempo: From treatment initiation until the first documented disease progression or death from any cause, whichever occurs first, assessed up to 120 months.

Progression-free survival, defined as the time from treatment initiation to documented disease progression. Patients without documented progression at the end of follow-up will be censored at the date of the last follow-up without progression.

From treatment initiation until the first documented disease progression or death from any cause, whichever occurs first, assessed up to 120 months.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Objective Response Rate (ORR)
Lasso di tempo: From treatment initiation until disease progression or the last tumor response assessment, assessed up to 120 months.

Response rate defined by RECIST 1.1

From treatment initiation until disease progression or the last tumor response assessment, assessed up to 120 months.
Overall Survival (OS)
Lasso di tempo: From treatment initiation until death from any cause or last follow-up, assessed up to 120 months.

The time from treatment initiation to death; patients alive at the end of follow up will be censored at the time of last follow up.

From treatment initiation until death from any cause or last follow-up, assessed up to 120 months.

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Incidence of Grade 3-4 Adverse Events According to CTCAE
Lasso di tempo: From treatment initiation until treatment discontinuation or the last available safety assessment, assessed up to 120 months.

The proportion of patients experiencing at least one Grade 3 or 4 adverse event during treatment, assessed according to the Common Terminology Criteria for Adverse Events (CTCAE). Grade 3 adverse events are defined as severe, and Grade 4 adverse events as life-threatening.

From treatment initiation until treatment discontinuation or the last available safety assessment, assessed up to 120 months.
Correlation of Chromogranin A, 5-HIAA, and Neuron-Specific Enolase Levels With TB-NET Score
Lasso di tempo: At baseline, prior to treatment initiation.

The association between baseline biochemical marker levels, including chromogranin A (CgA), 5-hydroxyindoleacetic acid (5-HIAA), and neuron-specific enolase (NSE), and tumor burden assessed using the TB-NET Score will be evaluated. Correlations will be analyzed separately for each biomarker using appropriate statistical methods.

At baseline, prior to treatment initiation.
Percentage of Patients With Positive Baseline 18F-FDG PET/CT According to TB-NET Score Risk Group
Lasso di tempo: At baseline, prior to treatment initiation.

The percentage of patients with positive baseline fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) will be calculated separately for the low-risk (TB-NET Score 1-2) and high-risk (TB-NET Score ≥3) groups. Imaging positivity will be assessed as a binary variable (positive versus negative) based on the imaging report. Only patients with available baseline 18F-FDG PET/CT results will be included. Unit of Measure: Percentage of patients.

At baseline, prior to treatment initiation.
Incremental Prognostic Value of Tumor Growth Rate at 3 and 6 Months for Progression-Free Survival
Lasso di tempo: TGR assessed at 3 and 6 months after treatment initiation; subsequent PFS assessed from each landmark until disease progression or death from any cause, whichever occurs first, up to 120 months after treatment initiation.

The incremental prognostic value of tumor growth rate (TGR), assessed at 3 and 6 months after treatment initiation, will be evaluated for progression-free survival (PFS). TGR will be calculated using serial radiological tumor measurements and expressed as percentage tumor growth per month. Separate landmark analyses at 3 and 6 months will assess the association between TGR and subsequent PFS using Cox proportional hazards regression models, comparing the TB-NET Score alone with the TB-NET Score plus TGR.

TGR assessed at 3 and 6 months after treatment initiation; subsequent PFS assessed from each landmark until disease progression or death from any cause, whichever occurs first, up to 120 months after treatment initiation.
Percentage of Patients With Positive Baseline 68Ga-SSTR PET/CT According to TB-NET Score Risk Group
Lasso di tempo: At baseline, prior to treatment initiation.

The percentage of patients with positive baseline gallium-68-labeled somatostatin receptor positron emission tomography/computed tomography (68Ga-SSTR PET/CT) will be calculated separately for the low-risk (TB-NET Score 1-2) and high-risk (TB-NET Score ≥3) groups. Imaging positivity will be assessed as a binary variable (positive versus negative) based on the imaging report. Only patients with available baseline 68Ga-SSTR PET/CT results will be included. Unit of Measure: Percentage of patients.

At baseline, prior to treatment initiation.
Percentage of Patients With Positive Baseline Somatostatin Receptor Scintigraphy According to TB-NET Score Risk Group
Lasso di tempo: At baseline, prior to treatment initiation.

The percentage of patients with positive baseline somatostatin receptor scintigraphy (OctreoScan) will be calculated separately for the low-risk (TB-NET Score 1-2) and high-risk (TB-NET Score ≥3) groups. Imaging positivity will be assessed as a binary variable (positive versus negative) based on the imaging report. Only patients with available baseline OctreoScan results will be included. Unit of Measure: Percentage of patients.

At baseline, prior to treatment initiation.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Angela Lamarca, MD, PhD, Hospital Universitario Fundación Jiménez Díaz

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

12 maggio 2026

Completamento primario (Stimato)

1 marzo 2027

Completamento dello studio (Stimato)

1 settembre 2027

Date di iscrizione allo studio

Primo inviato

30 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

22 ottobre 2026

Primo Inserito (Effettivo)

29 ottobre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

12 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

10 novembre 2026

Ultimo verificato

1 novembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • EO016-26_FJD

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .