Riduzione della dose nella radioterapia prostatica utilizzando un MR-Linac in due frazioni (DESTINATION 2)
De-escalazione della dose nella radioterapia prostatica mediante MR-Linac in 2 frazioni
The goal of this clinical trial is to find out whether lowering the radiation dose to parts of the prostate without visible tumor on MRI can reduce side effects while still effectively treating prostate cancer in men with low or intermediate-risk prostate cancer.
The main questions it aims to answer are:
- Does reducing the radiation dose to healthy prostate tissue lower the risk of bowel and urinary side effects?
- Can we maintain good cancer control by keeping a high dose for MRI-visible tumor areas?
Researchers will compare two treatment approaches:
- One group receives a uniform high dose to the entire prostate.
- The other group receives a lower dose to healthy prostate tissue and a high dose only to visible tumor areas.
Participants will:
- Receive two sessions of MRI-guided radiotherapy using an MR-Linac.
- Complete questionnaires about urinary, bowel, and sexual health before and after treatment.
- Have follow-up visits to monitor side effects and PSA levels for up to 2 years.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Floris Pos, MD, PhD
- Numero di telefono: +31205129111
- Email: f.pos@nki.nl
Luoghi di studio
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Amsterdam, Olanda, 1066CX
- Reclutamento
- The Netherlands Cancer Institute
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Contatto:
- Floris Pos, MD, PhD
- Numero di telefono: +31205129111
- Email: f.pos@nki.nl
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Contatto:
- Email: l.vd.hengel@nki.nl
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Men aged ≥18 years
- Histological confirmation of prostate adenocarcinoma requiring radical radiotherapy
- Gleason score 3+3, 3+4 or 4+3 (ISUP Grade groups (GG) 1, 2 or 3)
- MRI-visible tumour(s) of PIRADS v2 grade 3 or higher and able to be delineated on T2 and diffusion-weighted imaging +/- dynamic contrast-enhanced imaging. Tumour nodule visible on MRI should be considered able to be boosted by treating clinician and <2.5cm in maximal dimension. MRI must be performed within 3 months of trial entry
- The MRI-defined lesion must be confirmed as malignant on biopsies (any Gleason grade is sufficient as long as Gleason score is reported).
- MRI stages mT1 and T2 or mT3a with ≤ 1mm tumour outside gland AND otherwise favourable intermediate risk characteristics (Gleason 3+3, 3+4)(as staged by AJCC TNM 2018)
- PSA <20 ng/ml prior to starting androgen deprivation therapy (ADT).
- WHO Performance status 0-2
- Ability of the participant to understand and the willingness to sign a written informed consent (IC) form.
- Ability/willingness to comply with the patient reported outcome questionnaires schedule throughout the study.
Exclusion Criteria:
- Contraindications to MRI (e.g. pacemaker, potentially mobile metal implant, claustrophobia)
- IPSS Score > 19
- High grade disease (GG3) occult to MRI-defined lesion. As a guide, any pathology for which you would consider surveillance is allowed outside of the MRI-defined area.
- Prostate volume >90cc
- Comorbidities which predispose to significant toxicity (e.g. inflammatory bowel disease) or preclude long term follow up
- Hip replacement, or other pelvic metalwork which causes artefact on diffusion-weighted imaging
- Previous pelvic radiotherapy
- Patients needing >6 months of ADT due to disease parameters.
- Previous invasive malignancy within the last 2 years excluding basal or squamous cell carcinomas of the skin, low risk non-muscle invasive bladder cancer (assuming cystoscopic follow up now negative) or small renal masses on surveillance.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
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Altro: SBRT a dose uniforme
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27 Gy dose in 2 fractions to the whole prostate+/- seminal vesicles with a 0mm PTV margin using MR-linac |
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Altro: SBRT a dose de-escalata
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The benign prostate +/- SV CTV will receive 20 Gy in 2 fractions with a 0mm PTV margin using MR-linac. The intraprostatic tumor masses (on MRI) will receive 27 Gy in 2 fractions. A 4mm GTV to PTV margin will be added to the in-traprostatic MR visible tumour to form PTV 27Gy. |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Acute GU toxicity
Lasso di tempo: within 13 weeks of starting radiotherapy
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Physician-reported acute Grade 2 or higher CTCAE GU toxicity observed within 13 weeks of starting radiotherapy |
within 13 weeks of starting radiotherapy
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Dosimetry
Lasso di tempo: During Radiotherapy treatment of 8 days
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Estimate the accumulated dose differences between treatment arms in terms of dose to prostate CTV, rectum, urethra and bladder |
During Radiotherapy treatment of 8 days
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Late GI toxicity
Lasso di tempo: 1 and 2 years after radiotherapy treatment
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Physician reported late GI toxicity according to CTCAE v5.0 |
1 and 2 years after radiotherapy treatment
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Biochemical relapse-free survival
Lasso di tempo: 2 years
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Assess biochemical relapse-free survival for 2 years |
2 years
|
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Severity of erectile dysfunction experienced by patient
Lasso di tempo: Before radiotherapy treatment, and at 6, 12 and 24 months after radiotherapy treatment
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The IIEF-5 patient reported outcomes (PROs) assess the acute severity of erectile dysfunction |
Before radiotherapy treatment, and at 6, 12 and 24 months after radiotherapy treatment
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Acute GI toxicity
Lasso di tempo: At baseline, after the last fraction, and 2, 4 and 12 weeks after radiotherapy treatment
|
Physician reported acute GI toxicity according to CTCAE v5.0 |
At baseline, after the last fraction, and 2, 4 and 12 weeks after radiotherapy treatment
|
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Late GU toxicity
Lasso di tempo: 1 and 2 years after radiotherapy treatment
|
Physician reported late GU toxicity according to CTCAE v5.0 |
1 and 2 years after radiotherapy treatment
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Late sexual toxicity
Lasso di tempo: 1 and 2 years after radiotherapy treatment
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Physician reported late sexual toxicity according to CTCAE v5.0 |
1 and 2 years after radiotherapy treatment
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Severity of urinary symptoms (GU) experienced by patient
Lasso di tempo: Before radiotherapy treatment, after the last fraction, at 2, 4 and 12 weeks post-treatment, and at 6, 12 and 24 months after radiotherapy treatment
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The patient reported outcomes (PROs) International Prostate Symptoms Score (IPSS) assess the severity of urinary symptoms what the patient experiences |
Before radiotherapy treatment, after the last fraction, at 2, 4 and 12 weeks post-treatment, and at 6, 12 and 24 months after radiotherapy treatment
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Health-related quality of life experienced by patient
Lasso di tempo: Before start radiotherapy, week 4 and week 12, at 6, 12 and 24 months after radiotherapy treatment.
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The EPIC-26 patient reported outcomes (PROs) assess the health-related quality of life |
Before start radiotherapy, week 4 and week 12, at 6, 12 and 24 months after radiotherapy treatment.
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Collaboratori e investigatori
Sponsor
Sponsor
Collaboratori
Collaboratori
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie urogenitali
- Malattie genitali
- Neoplasie genitali, maschio
- Neoplasie urogenitali
- Neoplasie per sede
- Neoplasie
- Malattie genitali, maschio
- Malattie della prostata
- Malattie urogenitali maschili
- Neoplasie per tipo istologico
- Neoplasie, ghiandolari ed epiteliali
- Carcinoma
- Neoplasie prostatiche
- Adenocarcinoma
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- M24DTI
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Descrizione del piano IPD
It is intended that data will be shared within the MOMENTUM collaboration, between centres delivering treatment in the same way as DESTINATION2. Pseudonymised data will be stored within MOMENTUM for at least 5 years. Storage will be cloud based and as the treating centre we will have free access to the data and control over who else can assess it.
Periodo di condivisione IPD
5 years
Informazioni su farmaci e dispositivi, documenti di studio
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