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Validating DW-MRI and Fat Fraction in Multiple Myeloma Post-ASCT: The RAC-FAT Study"

7 settembre 2026 aggiornato da: Fondazione EMN Italy Onlus

Multicenter Observational Study for the Validation of the Predictive Role of Diffusion-Weighted Whole-body MRI (DW-MRI) Imaging Response According to MY-RADS Criteria (RAC Score) and Fat Fraction (rFF%) After Autologous Stem Cell Transplantation in Multiple Myeloma Patients Treated With First-Line Anti-CD38-Based Therapy (RAC-FAT Study)

This is a multicenter, observational, retrospective-prospective study designed to validate the predictive role of advanced imaging in patients with newly diagnosed multiple myeloma (NDMM). The main purpose of this study is to estimate the prevalence of radiological response categories (Response Assessment Category, RAC score) and evaluate the predictive value of relative Fat Fraction (rFF%) using Diffusion-Weighted Whole-Body Magnetic Resonance Imaging (DW-MRI) in patients who have undergone autologous stem cell transplantation (ASCT) after receiving first-line anti-CD38-based quadruplet induction therapy.

Panoramica dello studio

Descrizione dettagliata

The role of functional imaging in Multiple Myeloma (MM) has become essential for assessing treatment response. This study focuses on the Myeloma Response Assessment and Diagnosis System (MY-RADS) guidelines and the quantitative parameter of rFF% to identify "functional high-risk" patients who may experience early relapse despite achieving conventional deep responses.The study will involve two cohorts:Retrospective Cohort: Includes patients treated since January 1st, 2020, with available post-ASCT DW-MRI data performed during routine clinical practice.Prospective Cohort: Includes newly diagnosed patients enrolled after their standard-of-care ASCT and post-transplant DW-MRI assessment.Participants will not receive any investigational or trial-specific treatment. All diagnostic and therapeutic procedures follow the current standard of care. Data regarding clinical characteristics, treatment details (induction, ASCT, maintenance), DW-MRI parameters (RAC score, apparent diffusion coefficient [ADC], and rFF% values), and minimal residual disease (MRD) will be collected and recorded in an anonymized electronic Case Report Form (eCRF).The study aims to enroll a minimum of 92 participants to evaluate:Primary Endpoint: Prevalence of RAC1 and RAC≥2 categories post-ASCT.Secondary Endpoints: Progression-free survival (PFS) and Overall Survival (OS) stratified by RAC score and rFF%, and the concordance between imaging results and bone marrow MRD.

Tipo di studio

Osservativo

Iscrizione (Stimato)

92

Contatti e Sedi

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Contatto studio

Luoghi di studio

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

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

The study population consists of adult patients with Newly Diagnosed Multiple Myeloma (NDMM) who are eligible for transplantation and have been treated according to the most recent standards of care.

Descrizione

Inclusion criteria:

  • Newly diagnosed MM participants eligible for ASCT, treated with anti-CD38-based quadruplet induction therapy and ASCT, with post-ASCT/premaintenance DW-MRI available (in tandem ASCT, DW-MRI after second ASCT will be considered).
  • Age ≥18 years.
  • Participant must sign an informed consent form (ICF) that he or she understands the purpose of, and procedures required for the trial and is willing to participate in the trial.

Exclusion Criteria:

- Absence of post-ASCT/pre-maintenance DW-MRI.

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

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
Observational: MM Patient Cohort
This cohort includes transplant-eligible patients with newly diagnosed multiple myeloma (NDMM) who have completed first-line anti-CD38-based quadruplet induction therapy and autologous stem cell transplantation (ASCT).
Collection and analysis of Diffusion-Weighted Whole-body MRI data performed post-ASCT. The radiological response is evaluated using the Response Assessment Category (RAC) score (1 to 5) according to MY-RADS criteria.
Quantitative assessment of the relative Fat Fraction (percentage of fat within skeletal regions) measured on residual focal lesions after transplantation to identify functional high-risk (FHR) patients.
Retrospective and prospective collection of clinical outcomes, including Progression-Free Survival (PFS), Overall Survival (OS), and Minimal Residual Disease (MRD) status from medical records.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Radiological Response Categories (RAC1 and RAC≥2)
Lasso di tempo: Post-ASCT / Pre-maintenance (approx. 3-4 months after ASCT))
Prevalence of radiological response categories evaluated by post-ASCT DW-MRI according to MY-RADS criteria.
Post-ASCT / Pre-maintenance (approx. 3-4 months after ASCT))

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Progression-Free Survival (PFS) according to RAC score
Lasso di tempo: Minimum 2 years, up to 4 years
Defined as the time from the date of ASCT to the first documented disease progression (per IMWG criteria) or death from any cause.
Minimum 2 years, up to 4 years
Overall Survival (OS) according to RAC score
Lasso di tempo: Minimum 2 years, up to 4 years
Defined as the time from the date of ASCT to death from any cause.
Minimum 2 years, up to 4 years
PFS and OS according to relative Fat Fraction (rFF%)
Lasso di tempo: Minimum 2 years, up to 4 years
Evaluation of survival outcomes based on the 17.2% rFF% threshold identified on residual focal skeletal lesions.
Minimum 2 years, up to 4 years
RAC Score and IMWG Response Concordance
Lasso di tempo: 4 months post-ASCT
To assess RAC score in relation to response according to IMWG criteria
4 months post-ASCT
Concordance between RAC score and bone marrow MRD
Lasso di tempo: Pre-maintenance (approx. 100 days post-ASCT)
Assessment of the agreement between radiological response (RAC score) and Minimal Residual Disease (MRD) status (when available).
Pre-maintenance (approx. 100 days post-ASCT)
Early Relapse Rate and rFF%
Lasso di tempo: 18 months post-ASCT)
Proportion of participants with early relapse (within 18 months post-ASCT) associated with rFF% < 17.2%.
18 months post-ASCT)
PFS by Combined MRD and RAC Score
Lasso di tempo: Through study completion, an average of 2 years
Evaluation of post-ASCT progression-free survival (PFS) stratified by the combined assessment of bone marrow minimal residual disease (MRD) status and radiological Response Assessment Category (RAC) score.
Through study completion, an average of 2 years
OS by Combined MRD and RAC Score
Lasso di tempo: Through study completion, an average of 2 years.
Evaluation of post-ASCT overall survival (OS) stratified by the combined assessment of bone marrow minimal residual disease (MRD) status and radiological Response Assessment Category (RAC) score.
Through study completion, an average of 2 years.

Collaboratori e investigatori

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

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 (Stimato)

1 ottobre 2026

Completamento primario (Stimato)

1 agosto 2028

Completamento dello studio (Stimato)

1 agosto 2030

Date di iscrizione allo studio

Primo inviato

21 luglio 2026

Primo inviato che soddisfa i criteri di controllo qualità

30 luglio 2026

Primo Inserito (Effettivo)

4 agosto 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

9 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

7 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

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 .

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