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Evaluering af sikkerhed og effektivitet af prostatabesparende radikal cystektomi

2. november 2026 opdateret af: Johns Hopkins University

Et prospektivt, randomiseret forsøg, der sammenligner prostatakapselbesparende og nervebesparende radikal cystektomi hos patienter med blærekræft

The purpose of this clinical trial is to determine if prostate-capsule-sparing cystectomy improves functional outcomes without comprising oncologic outcomes in male patients receiving a radical cystectomy. Patients will be randomized to one of two groups: prostate capsule-sparing radical cystectomy or nerve-sparing radical cystectomy. Patients will be monitored following standard of care guidelines and clinical data will be collected. Patients in both groups will be asked to complete an erectile function questionnaire at multiple timepoints. Patients who receive an orthotopic neobladder will be asked to complete a questionnaire to monitor urinary function at multiple timepoints. Patient adverse events will be monitored to ensure patients safety.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The purpose of this study is to determine if prostate capsule-sparing cystectomy improves functional outcomes without compromising the oncologic outcomes in patients with bladder cancer. The comparison arm will be patients undergoing nerve-sparing radical cystectomy. Participants will be randomized to receive either a nerve-sparing radical cystectomy or a prostate capsule-sparing radical cystectomy. Patients will be monitored following standard of care guidelines every 3-months post-operatively up to and including 24 months post-operatively. As part of standard of care post-operative follow-up patients will have routine history and physical exams, urine cytology, urine culture, Complete Blood Count (CBC), Comprehensive Metabolic Panel (CMP), and Prostate Specific Antigen (PSA). Standard of Care diagnostic imaging will also occur. The Sexual Health Inventory for Men (SHIM) Questionnaire will be given to patients 6-weeks post-operatively and every 3-months post-operatively up to and including 24-months post-operatively. To measure urinary function in patients who receive orthotopic neobladder, the Validated Pad Questionnaire will be given 6-weeks post-operatively and every 3-months post-operatively up to and including 24-months post operatively. Adverse Events will be monitored in both groups as defined by the CTCAE 5.0 guidelines.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

70

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

    • District of Columbia
      • Washington D.C., District of Columbia, Forenede Stater, 20016
        • Rekruttering
        • Sibley Memorial Hospital
        • Kontakt:
        • Kontakt:
    • Maryland
      • Baltimore, Maryland, Forenede Stater, 21287
        • Rekruttering
        • Johns Hopkins Hospital
        • Kontakt:
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Han

Beskrivelse

Inclusion Criteria:

  • Subjects with pathologically confirmed bladder cancer scheduled for radical cystectomy
  • Variant histologies of bladder cancer permitted
  • Neoadjuvant therapy permitted
  • Age > 18 years old
  • Ability to understand and willingness to sign a written informed consent document

Exclusion Criteria:

  • Patients that are not candidates for cystectomy
  • Moderate to severe erectile dysfunction with SHIM score <17
  • Bladder cancer with bladder neck or prostatic involvement, including cancer in the prostatic urethra
  • Prior pelvic radiation
  • Confirmed prostate cancer:
  • Patients with abnormal Digital rectal exam (DRE), PSA >3 or Prostate Imaging Reporting & Data System (PIRADS) 4 lesions on prostate Multiparametric MRI (mpMRI) will undergo prostate biopsy to rule out prostate cancer
  • Increased genetic risk of prostate cancer per National Comprehensive Cancer Network (NCCN) guidelines:
  • ≥1 first-, second-, or third-degree relative with: breast cancer at age ≤50 y, colorectal or endometrial cancer at age ≤50 y, male breast cancer at any age, ovarian cancer at any age, exocrine pancreatic cancer at any age, metastatic, regional, very-high-risk, high-risk prostate cancer at any age
  • ≥1 first-degree relative (father or brother) with: prostate cancer at age ≤60 y
  • ≥2 first-, second-, or third-degree relatives with: breast cancer at any age, prostate cancer at any age
  • ≥3 first- or second-degree relatives with: Lynch syndrome-related cancers, especially if diagnosed
  • Patients with Lynch syndrome

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Prostate Capsule-Sparing Radical Cystectomy

Patients randomized to this arm will receive the prostate capsule-sparing surgery performed in the form of standard simple prostatectomy. Patients will also have a cystectomy with one of the following urinary diversions: ileal conduit, Indiana Pouch, or orthotopic neobladder.

Patients randomized to this arm will receive the prostate capsule-sparing surgery performed in the form of standard simple prostatectomy. Patients will also have a cystectomy with one of the following urinary diversions: ileal conduit, Indiana Pouch, or orthotopic neobladder.

Andet: Nerve-Sparing Radical Cystectomy

Patients randomized to this arm will receive the nerve-sparing surgery will be performed in the form of the standard nerve-sparing radical prostatectomy. Patients will also have a cystectomy with one of the following urinary diversions: ileal conduit, Indiana Pouch, or orthotopic neobladder.

Patients randomized to this arm will receive the nerve-sparing surgery will be performed in the form of the standard nerve-sparing radical prostatectomy. Patients will also have a cystectomy with one of the following urinary diversions: ileal conduit, Indiana Pouch, or orthotopic neobladder.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Functional Outcomes as assessed by the Sexual Health Inventory for Men (SHIM)
Tidsramme: Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively, 24-months post-op

Comparison of functional outcomes focusing on preservation of erectile function in patients undergoing cystectomy for bladder cancer. Functional Outcomes will be measured by the Sexual Health Inventory for Men (SHIM) Questionnaire. The Sexual Health Inventory for Men defines the following ranges of Erectile Dysfunction (ED): 1-7 is Severe ED, 8-11 Moderate ED, 12-16 Mild to Moderate ED, and 17 to 21 is Mild ED.

Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively, 24-months post-op

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in urinary function in patients with orthotopic neobladder as assessed by the Validated Pad Questionnaire
Tidsramme: Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively , 24-months post-op

Urinary function in patient with orthotopic neobladder urinary diversions measured using the Validated Pad Questionnaire. The Validated Pad questionnaire will be used to determine the percentage of patients utilizing 1 to 2 pads versus 2 or more pads for night and day, respectively.

Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively , 24-months post-op
Change in overall patient survival
Tidsramme: Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively, 24-months post-op

Comparing the overall survival of patients in both arms of the study

Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively, 24-months post-op
Change in disease specific status
Tidsramme: Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively, 24-months post-op

Comparing the status of disease specific in both arms of the study

Baseline, 6 weeks-post operatively, 3-months post-operatively, 6-months post-operatively, 9-months post-operatively, 12-months post-operatively, 15-months post-operatively, 18-months post-operatively, 21-months post-operatively, 24-months post-op
Soft tissue surgical margin rate as assessed by pathology
Tidsramme: Up to 4-weeks after surgical intervention

Pathologists will examine the soft tissue surgical margin rate to determine positive or negative soft tissue surgical margin.

Up to 4-weeks after surgical intervention
Safety as assessed by adverse events experienced by study participants
Tidsramme: Up to 24-months post-operative

Comparing the differences in adverse events (grades 2-5) as experienced by the participants of in each study arm. The grading of adverse events are defined by the CTCAE 5.0 guidelines.

Up to 24-months post-operative

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Ledende efterforsker: Armine Smith, MD, Johns Hopkins University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

25. oktober 2023

Primær færdiggørelse (Anslået)

1. juli 2028

Studieafslutning (Anslået)

1. juli 2029

Datoer for studieregistrering

Først indsendt

16. marts 2023

Først indsendt, der opfyldte QC-kriterier

28. marts 2023

Først opslået (Faktiske)

31. marts 2023

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • IRB00345549

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