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A Study of Lower Dose Radiation Therapy for People With Prostate Cancer

17. juni 2026 oppdatert av: Memorial Sloan Kettering Cancer Center

Dose dE-eScalaTion IN prostATe radIOtherapy usiNg an MR-Linac in 2 Fractions - A Randomized Trial (DESTINATION 2)

The purpose of this study is to see whether giving a lower (de-escalated) dose of radiation therapy to some parts of the prostate can reduce side effects compared to giving the same (uniform) dose of radiation therapy to the whole prostate.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

54

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

  • Navn: Victoria Brennan, MBBCH BAO
  • Telefonnummer: 212-639-8904
  • E-post: brennanv@mskcc.org

Studer Kontakt Backup

  • Navn: Zachary Moore, MD, PhD
  • Telefonnummer: 212-639-5803
  • E-post: MooreZ@mskcc.org

Studiesteder

  • Forente stater
    • New Jersey
      • Basking Ridge, New Jersey, Forente stater, 07920
        • Rekruttering
        • Memorial Sloan Kettering at Basking Ridge (Limited Protocol Activities)
        • Ta kontakt med:
      • Middletown, New Jersey, Forente stater, 07748
        • Rekruttering
        • Memorial Sloan Kettering at Monmouth (Limited Protocol Activities)
        • Ta kontakt med:
      • Montvale, New Jersey, Forente stater, 07645
        • Rekruttering
        • Memorial Sloan Kettering at Bergen (Limited Protocol Activities)
        • Ta kontakt med:
    • New York
      • Commack, New York, Forente stater, 11725
        • Rekruttering
        • Memorial Sloan Kettering at Suffolk-Commack (Limited Protocol Activities)
        • Ta kontakt med:
      • Harrison, New York, Forente stater, 10604
        • Rekruttering
        • Memorial Sloan Kettering at Westchester (Limited Protocol Activities)
        • Ta kontakt med:
      • New York, New York, Forente stater, 10065
        • Rekruttering
        • Memorial Sloan Kettering Cancer Center (All Protocol Activities)
        • Ta kontakt med:
          • Victoria Brennan, MBBCH BAO
          • Telefonnummer: 212-639-8904
      • Uniondale, New York, Forente stater, 11553
        • Rekruttering
        • Memorial Sloan Kettering at Nassau (Limited Protocol Activities)
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Documentation of Disease

    o Patients must have pathologically confirmed prostate adenocarcinoma.

  • Definition of Disease

    • Grade Group (GG) 1, 2, or 3.
    • PSA less than 20 ng/mL prior to starting ADT, if used.
    • Clinical stage of TX, T1 or T2 on digital rectal examination. May have up to radiological stage T3a on MRI. MRI must be performed within 12 months of randomization.
    • MRI-visible tumor(s), all having PIRADS v2.1 scores of 3, 4, or 5. Each tumor should be able to be delineated on T2 and diffusion-weighted imaging (DWI) +/- dynamic contrast-enhanced imaging (DCE).
    • Tumor nodule visible on MRI should be considered able to be boosted by treating clinician (ie meet urethral constraints while maintaining mandatory GTV coverage) and <2.5cm in maximal dimension.
    • The MRI-defined lesion must be confirmed as malignant on biopsies (Grade group 1, 2, or 3).
    • Patients can be concurrently treated with androgen deprivation therapy (ADT) if this would be standard of care. LHRH analogues, LHRH agonists or Bicalutamide are permitted. ADT is not mandatory where this would usually be omitted. Patients needing greater than 6 months of ADT due to disease parameters should be excluded.
    • No high grade disease (GG3) occult to MRI-defined lesion. As a guide, any pathology for which you would consider surveillance (e.g. GG1, low volume GG2) is allowed outside of the MRI-defined area.
    • No contraindications to MRI (e.g. pacemaker, potentially mobile metal implant, claustrophobia).
    • Prostate volume less than or equal to 90mL.
    • No evidence of nodal or distant metastatic disease.

  • Prior Treatment

    o No history of previous radiation to the prostate, prostate surgery (including transurethral resection of the prostate (TURP)), or other local prostate cancer treatments.

  • Age ≥ 18
  • ECOG Performance Status of ≤ 2 (See Appendix I for performance status criteria)

  • Required Organ Function

    • Adequate hematologic function defined as follows:

      • Absolute neutrophil count (ANC) ≥ 1,500 cells/mm3
      • Platelets ≥ 100,000 cells/mm3
      • Hemoglobin ≥ 8 g/dl

    • Adequate renal function defined as follows:

      • Creatinine clearance (CrCL) of ≥30 mL/min by the Cockcroft-Gault formula:

CrCl (mL/min) = [140 - age (years)] x weight (kg) / 72 x creatinine (mg / dL) {x 0.85 for female patients}

  • Adequate hepatic function defined as follows:

    • Total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN) (patients with known Gilbert's disease who have bilirubin level ≤ 3 x ULN may be enrolled)
    • AST and ALT ≤3 x institutional ULN

  • Adequate cardiac function defined as follows:

    • Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification.

    • To be eligible for this trial, patients should be class 2B or better (see Appendix II: New York Heart Association (NYHA) Functional Classification).

      • Comorbid Conditions
  • No active infection requiring parenteral antibiotic(s).
  • Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial.
  • No severe GU symptoms that would preclude extreme hypofractionation per the discretion of the treating physician.
  • No IPSS Score greater than 19.

  • No comorbidities which predispose to significant toxicity (e.g. inflammatory bowel disease) or preclude long term follow up.

    • Ability of the participant to understand and the willingness to sign a written informed consent form.
    • Willing to consent to contraception during and for 1 year after treatment when applicable.
    • Ability/willingness to comply with the patient reported outcome questionnaires schedule throughout the study.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Group 1: Uniform dose SBRT
Stråling: MR-guided Stereotactic Body Radiation Therapy
MR-guided 2 fraction Stereotactic Body Radiation Therapy
Andre navn:
  • MR-veiledet SBRT
Eksperimentell: Group 2: De-escalated dose SBRT
Stråling: MR-guided Stereotactic Body Radiation Therapy
MR-guided 2 fraction Stereotactic Body Radiation Therapy
Andre navn:
  • MR-veiledet SBRT

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Number of participants with acute GU toxicities
Tidsramme: 12 weeks from the start of radiation therapy
To estimate the absolute and relative risk of acute GU toxicity (CTCAE v5) when delivering dose de-escalated or uniform dose prostate SBRT, both using a 2-fraction regimen.
12 weeks from the start of radiation therapy

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Memorial Sloan Kettering Cancer Center

Etterforskere

  • Hovedetterforsker: Victoria Brennan, MBBCH BAO, Memorial Sloan Kettering Cancer Center

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Hjelpsomme linker

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

28. mai 2026

Primær fullføring (Antatt)

28. mai 2030

Studiet fullført (Antatt)

28. mai 2030

Datoer for studieregistrering

Først innsendt

29. mai 2026

Først innsendt som oppfylte QC-kriteriene

4. juni 2026

Først lagt ut (Faktiske)

9. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

18. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

17. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 26-150

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made following one year after publication and for up to 36 months later. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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