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Et studie for at finde ud af, om Enfortumab Vedotin givet sammen med Pembrolizumab hjælper personer med muskelinvasiv blærekræft med at beholde deres blære

30. oktober 2026 opdateret af: Astellas Pharma Global Development, Inc.

Et åbent, enarmet, fase 2-studie til evaluering af enfortumab vedotin plus pembrolizumab til bevarelse af blæren hos deltagere med muskelinvasiv blærekræft (EV-209)

People with a type of bladder cancer called muscle-invasive bladder cancer have cancer that has spread into the muscle wall of the bladder. The standard treatment is to have chemotherapy, followed by surgery to completely remove the bladder. This has a significant impact on people with long-term life-altering changes. There are also limited options for people who cannot have chemotherapy or who do not want their bladder removed.

Studies show that enfortumab vedotin, when given with pembrolizumab, can help people with advanced bladder cancer. This treatment has also worked well for people with muscle-invasive bladder cancer who can't receive chemotherapy when it was given before and after bladder-removal surgery. However, some people can't have or won't have this surgery. There is still a need for new treatments that let people keep their bladder. This is especially important for people who respond well to the enfortumab vedotin, when given with pembrolizumab, and may benefit from continuing this study treatment instead of having surgery.

The main aims of this study are to check how many people continue to respond well to enfortumab vedotin with pembrolizumab and how many people have their bladder intact after 2 years.

People in this study will be adults who have muscle-invasive bladder cancer and are able to have surgery to remove the bladder.

People cannot take part if they have nerve damage (sensory or motor neuropathy), have had certain other cancers, have diabetes that is not under control, or have had a transplant.

People will receive infusions of enfortumab vedotin on the 1st and 8th day of 3-week (21-day) cycles. They will also receive pembrolizumab on the 1st day of every 3-week cycle. There will be safety checks at each visit with checks of the tumors at some visits. The doctors will continue to check for medical problems throughout the study.

People will continue to receive study treatment unless their cancer doesn't improve after 9 cycles of study treatment, or until their cancer gets worse, they can't tolerate the study treatment, they start other cancer treatment, they or the doctor decides the person should stop receiving study treatment, or sadly they pass away.

People's whose cancer gets worse or doesn't improve after 9 cycles may need bladder surgery, radiotherapy or chemotherapy. People will visit the clinic after they stop their study treatment, in which they will be asked about any medical problems and have a health check. After this, people will continue to have scans every 12 weeks (3 months) for the first 2 years until their cancer gets worse. After this, if their cancer doesn't get worse, they will continue to have scans every 24 weeks (6 months) for up to 5 years to check for any changes in their cancer. After people's cancer gets worse, they won't have any more scans but will have telephone health checks every 3 months.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

240

Fase

  • Fase 2

Kontakter og lokationer

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

Studiekontakt

Studiesteder

      • New South Wales, Australien
        • Rekruttering
        • Site AU61002
    • Queensland
      • Southport, Queensland, Australien
        • Rekruttering
        • Site AU61005
    • Ontario
      • Toronto, Ontario, Canada
        • Rekruttering
        • Site US10003
      • Colchester, Det Forenede Kongerige
        • Rekruttering
        • Site UK44003
      • London, Det Forenede Kongerige
        • Rekruttering
        • Site GB44005
      • London, Det Forenede Kongerige
        • Rekruttering
        • Site UK44004
      • Plymouth, Det Forenede Kongerige
        • Rekruttering
        • Site UK44001
    • Arkansas
      • Little Rock, Arkansas, Forenede Stater, 72211
        • Rekruttering
        • Arkansas Urology Associates
    • California
      • Stanford, California, Forenede Stater, 94305
        • Rekruttering
        • Stanford University School of Medicine
    • Illinois
      • Chicago, Illinois, Forenede Stater, 60612
        • Rekruttering
        • University of Illinois College of Medicine - UIC Cancer Center
      • Lisle, Illinois, Forenede Stater, 60532
        • Rekruttering
        • Accellacare of Duly
    • Indiana
      • Indianapolis, Indiana, Forenede Stater, 46202
        • Rekruttering
        • Indiana University School of Medicine - Simon Cancer Center
    • Kansas
      • Westwood, Kansas, Forenede Stater, 66205
        • Rekruttering
        • The University of Kansas Cancer Center
    • Michigan
      • Detroit, Michigan, Forenede Stater, 48201
        • Rekruttering
        • Karmanos Cancer Institute
      • Royal Oak, Michigan, Forenede Stater, 48073
        • Rekruttering
        • Profound Research LLC at Michigan Hematology and Oncology Consultants
    • New Jersey
      • Cherry Hill, New Jersey, Forenede Stater, 08002
        • Rekruttering
        • Sidney Kimmel Comprehensive Cancer Center (SKCCC) Cherry Hill
      • Washington Township, New Jersey, Forenede Stater, 08080
        • Rekruttering
        • Sidney Kimmel Comprehensive Cancer Center (SKCC) Washington Township
    • New York
      • New York, New York, Forenede Stater, 10017
        • Rekruttering
        • NYU Langone Urology Associates
    • Pennsylvania
      • Bala-Cynwyd, Pennsylvania, Forenede Stater, 19004
        • Rekruttering
        • Centers for Advanced Urology, LLP
      • Philadelphia, Pennsylvania, Forenede Stater, 19107
        • Rekruttering
        • Thomas Jefferson University
      • Willow Grove, Pennsylvania, Forenede Stater, 19090
        • Rekruttering
        • Sidney Kimmel Comprehensive Cancer - Asplundh Cancer Pavilion
    • South Carolina
      • Myrtle Beach, South Carolina, Forenede Stater, 29572
        • Rekruttering
        • Carolina Urologic Research Center
    • Texas
      • Houston, Texas, Forenede Stater, 77030
        • Rekruttering
        • The University of Texas MD Anderson Cancer Center
      • Round Rock, Texas, Forenede Stater, 78681
        • Rekruttering
        • Urology Austin, PLLC
      • San Antonio, Texas, Forenede Stater, 78229
        • Rekruttering
        • Urology San Antonio
    • Wisconsin
      • Madison, Wisconsin, Forenede Stater, 53792
        • Rekruttering
        • University of Wisconsin Hospitals and Clinics
      • Cedex Lyon 08, Frankrig
        • Rekruttering
        • Site FR33004
      • Paris, Frankrig
        • Rekruttering
        • Site FR33002
      • Rennes, Frankrig
        • Rekruttering
        • Site FR33013
      • Strasbourg, Frankrig
        • Rekruttering
        • Site FR33009
      • Strasbourg, Frankrig
        • Rekruttering
        • Site FR33012
      • Suresnes, Frankrig
        • Rekruttering
        • Site FR33011
      • Toulouse, Frankrig
        • Rekruttering
        • Site FR33003
      • Villejuif, Frankrig
        • Rekruttering
        • Site FR33010
      • Bari, Italien
        • Rekruttering
        • Site IT39013
      • Foggia, Italien
        • Rekruttering
        • Site IT39005
      • Meldola, Italien
        • Rekruttering
        • Site IT39009
      • Milan, Italien
        • Rekruttering
        • Site IT39017
      • Kyoto, Japan
        • Rekruttering
        • Kyoto University Hospital
      • Osaka, Japan
        • Rekruttering
        • Osaka Metropolitan University Hospital
    • Gifu
      • Gifu, Gifu, Japan
        • Rekruttering
        • Gifu University Hospital
    • Hyōgo
      • Kobe, Hyōgo, Japan
        • Rekruttering
        • Kobe City Hospital Organization - Kobe City Medical Center General Hospital
    • Ibaraki
      • Tsukuba, Ibaraki, Japan
        • Rekruttering
        • University of Tsukuba Hospital
    • Kanagawa
      • Kawasaki, Kanagawa, Japan
        • Rekruttering
        • St. Marianna University Hospital
    • Tokyo
      • Bunkyo-ku, Tokyo, Japan
        • Rekruttering
        • Tokyo Metropolitan Hospital Organization-Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital
      • Bunkyo-ku, Tokyo, Japan
        • Rekruttering
        • Institute of Science Tokyo Hospital
      • Koto-ku, Tokyo, Japan
        • Rekruttering
        • The Cancer Institute Hospital-Japanese Foundation for Cancer
    • Yamaguchi
      • Ube, Yamaguchi, Japan
        • Rekruttering
        • Yamaguchi University Hospital - Center For Clinical Research
      • Beijing, Kina
        • Rekruttering
        • Cancer Hospital, Chinese Academy of Medical Sciences
      • Langfang, Kina
        • Rekruttering
        • Langfang Campus, Cancer Hospital Chinese Academy of Medical Science
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Kina
        • Rekruttering
        • Sichuan Cancer Hospital
    • Sichuan
      • Chengdu, Sichuan, Kina
        • Rekruttering
        • Shanghai Tenth People's Hospital
      • Lodz, Polen
        • Rekruttering
        • Site PL48005
      • Opole, Polen
        • Rekruttering
        • Site PL48007
      • Poznan, Polen
        • Rekruttering
        • Site PL48008
      • Przemyśl, Polen
        • Rekruttering
        • Site PL48006
      • Granada, Spanien
        • Rekruttering
        • Site ES34011
      • Ourense, Spanien
        • Rekruttering
        • Site ES34002
      • Pamplona, Spanien
        • Rekruttering
        • Site ES34005
      • Gyeonggi-do, Sydkorea
        • Rekruttering
        • Site KR82007
      • Seoul, Sydkorea
        • Rekruttering
        • Site KR82003
      • Seoul, Sydkorea
        • Rekruttering
        • Site KR82001
      • Seoul, Sydkorea
        • Rekruttering
        • Site KR82005
      • Seoul, Sydkorea
        • Rekruttering
        • Site KR82010
      • Seoul, Sydkorea
        • Rekruttering
        • Site KR82008
    • Gyeonggi-do
      • Seongnam-si, Gyeonggi-do, Sydkorea
        • Rekruttering
        • Site KR82002
    • Jeollanam-do
      • Hwasun, Jeollanam-do, Sydkorea
        • Rekruttering
        • Site KR82004
      • Herne, Tyskland
        • Rekruttering
        • Site DE49009

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

Alle

Beskrivelse

Inclusion Criteria:

  • Participant has histologically-confirmed MIBC, stage cT2-T4aN0M0 or T1-T4aN1M0. NOTE: urothelial carcinomas (UCs) not originating from the bladder (e.g., upper tract [ureters, renal pelvis], urethra) are not eligible. UCs invading into the prostatic stroma with no histologic muscle invasion is allowed, provided that the extent of disease is confirmed via imaging.
  • Participant has predominant UC histology (≥ 50%). NOTE: Participants with mixed histology are eligible provided the urothelial component is ≥ 50% (participants whose tumors contain predominant [≥ 50%] plasmacytoid variant are not eligible). Participants whose tumors contain any neuroendocrine histology are not eligible.
  • Participant is deemed eligible for radical cystectomy and pelvic lymph node dissection.
  • Participant has accessible archival tumor tissue from the primary tumor, for which source and availability have been confirmed prior to study intervention. If no archival tumor tissue is available, the participant will have a biopsy to obtain tumor tissue prior to study intervention.
  • Participant has Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.
  • Have a transurethral resection of a bladder tumor within 60 days (+14 days) prior to, or during screening (from the date of informed consent form signature).

Exclusion Criteria:

  • Participant has preexisting sensory or motor neuropathy Grade ≥ 2.

  • Participant has ≥ N2 disease or metastatic disease (M1) as identified by imaging

  • Participant has a history of uncontrolled diabetes mellitus within 3 months prior to screening. Uncontrolled diabetes (within 3 months before first dose) is defined as hemoglobin A1c (HbA1c) ≥ 8% or HbA1c between 7% and < 8% with associated diabetes symptoms (polyuria or polydipsia) that are not otherwise explained. The lowest HbA1c during the screening period will be used to determine eligibility.

  • Participant has a second malignancy diagnosed within 3 years before first dose of study intervention, or any evidence of residual disease from a previously diagnosed malignancy. Participant with non-melanoma skin cancer, localized prostate cancer treated with curative intent with no evidence of progression, low-risk or very low-risk (per standard guidelines) localized prostate cancer under active surveillance/watchful waiting without intent to treat, or carcinoma in situ of any type (if complete resection was performed) are allowed.

  • Participant has known active keratitis or corneal ulcerations. Participant with superficial punctate keratitis is allowed if the disorder is being adequately treated.

  • Participant has a history of (non-infectious) pneumonitis/interstitial lung disease (ILD) that required steroids or has current pneumonitis/ILD.

  • Participant has a history of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography (CT) scan.

  • Participant has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior the first dose of study intervention. Inhaled or topical steroids are permitted in the absence of active autoimmune disease. Physiologic replacement doses of corticosteroids are permitted for participants with adrenal insufficiency.

  • Participant has active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids or immunosuppressive drugs).

    • Replacement therapy (e.g., thyroxine, insulin, physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment and is allowed.
    • Brief (< 7 days) use of systemic corticosteroids is allowed when use is considered standard of care.
    • Participant with vitiligo, psoriasis, type 1 diabetes mellitus, hypothyroidism, or resolved childhood asthma/atopy will not be excluded.
    • Participant requiring intermittent use of bronchodilators, inhaled steroids, or local steroid injections will not be excluded.
    • Participant with hypothyroidism that is stable with hormone replacement therapy or Sjögren's syndrome will not be excluded.
  • Participant has received prior therapy with an anti-programmed cell death protein 1 (PD-1), anti-programmed death-ligand 1 (PD-L1), or anti-programmed death-ligand 2 agent or with an agent directed to another stimulatory or coinhibitory T-cell receptor (e.g., CTLA-4, OX-40, CD137).

  • Participant has received prior systemic anti-cancer therapy for MIBC/non-muscle invasive bladder cancer (NMIBC), or received prior systemic anti-cancer therapy including investigational agents (including enfortumab vedotin or other monomethyl auristatin E-based antibody-drug conjugates) within 3 years prior to screening.

NOTE: Prior treatment for NMIBC with intravesical instillation therapy such as Bacillus Calmette-Guérin or intravesical chemotherapy is permitted. Prior systemic treatment (including, but not limited to, anti-PD-1/PD-L1 treatment with pembrolizumab, etc.) received for NMIBC is not permitted.

  • Participant has received a partial cystectomy of the bladder to remove any NMIBC or MIBC.
  • Participant has received any prior radiotherapy to the bladder.

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: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Enfortumab Vedotin with Pembrolizumab

Participants will receive enfortumab vedotin on days 1 and 8 of every 21-day cycle and pembrolizumab on day 1 of every 21-day cycle.

IV

Intravenous infusion (IV)

Andre navne:
  • ASG-22CE
  • PADCEV

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overall clinical complete response (cCR) rate after treatment with enfortumab vedotin in combination with pembrolizumab as assessed by investigator
Tidsramme: Up to 27 weeks

cCR rate is defined as the proportion of participants having cCR after treatment with enfortumab vedotin in combination with pembrolizumab.

cCR is defined as no visible tumor detected on cystoscopy or no residual tumor on transurethral resection of bladder tumor (TURBT); no evidence of malignancy, except for the presence of Ta (low grade), and no radiographic evidence of residual or metastatic disease on imaging (magnetic resonance urogram [MRU] or computed tomography urogram [CTU] if contraindicated). Bladder wall thickening on imaging is acceptable if not associated with malignancy, except for the presence of Ta (low grade), and negative urine cytology.

Up to 27 weeks
Bladder-intact event-free survival (BI-EFS) rate in participants who achieve cRC after 9 cycles of treatment with enfortumab vedotin in combination with pembrolizumab as assessed by investigator
Tidsramme: 2 years

BI-EFS rate is defined as the proportion of participants who have not had an observed BI-EFS event 2 years after the first dose.

BI-EFS is defined as the time from first dose to either histologically confirmed recurrent muscle-invasive bladder cancer (MIBC), disease progression, cystectomy, or death from any cause.

2 years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overall cCR rate after 4 cycles of treatment with enfortumab vedotin in combination with pembrolizumab as assessed by investigator
Tidsramme: Up to 12 weeks

cCR rate is defined as the proportion of participants having cCR after completing 4 cycles of enfortumab vedotin and/or pembrolizumab.

cCR is defined as no visible tumor detected on cystoscopy or no residual tumor on TURBT; no evidence of malignancy, except for the presence of Ta (low grade), and no radiographic evidence of residual or metastatic disease on imaging (MRU or CTU if contraindicated). Bladder wall thickening on imaging is acceptable if not associated with malignancy, except for the presence of Ta (low grade), and negative urine cytology.

Up to 12 weeks
BI-EFS rate in participants who achieve cCR after 4 cycles of treatment with enfortumab vedotin in combination with pembrolizumab as assessed by investigator
Tidsramme: 2 years

BI-EFS rate is defined as the proportion of participants who have not had an observed BI-EFS event 2 years after the first dose.

BI-EFS is defined as the time from first dose to either histologically confirmed recurrent MIBC, disease progression, cystectomy, or death from any cause.

2 years
Overall Survival (OS)
Tidsramme: Up to 5 years

OS is defined as the time from first dose to death due to any cause in participants who achieve cCR after completing up to 9 cycles of enfortumab vedotin and/or pembrolizumab.

Up to 5 years
Disease-Free Survival (DFS) as assessed by investigator
Tidsramme: Up to 5 years

DFS is defined as the time from cCR to the first occurrence of either radiologically or pathologically confirmed local or distant recurrence, or death from any cause in participants who achieve cCR after completing up to 9 cycles of enfortumab vedotin and/or pembrolizumab.

Up to 5 years
Metastatic-free Survival (MFS) as assessed by investigator
Tidsramme: Up to 5 years

MFS is defined as the time from first dose to the first occurrence of either radiologically or pathologically confirmed distant metastasis, or death from any cause in participants who achieve cCR after completing up to 9 cycles of enfortumab vedotin and/or pembrolizumab.

Up to 5 years
Number of participants with Adverse Events (AEs)
Tidsramme: Up to 12 months

AEs will be coded using the MedDRA. An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

Up to 12 months
Number of participants with laboratory value abnormalities and/or adverse events (AEs)
Tidsramme: Up 11.5 months

Number of participants with potentially clinically significant laboratory values.

Up 11.5 months
Treatment discontinuation rate due to AEs
Tidsramme: Up 12 months

Treatment discontinuation rate is defined as the number of participants discontinuing due to AEs.

Up 12 months

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

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)

12. marts 2026

Primær færdiggørelse (Anslået)

30. november 2027

Studieafslutning (Anslået)

30. april 2031

Datoer for studieregistrering

Først indsendt

13. marts 2026

Først indsendt, der opfyldte QC-kriterier

13. marts 2026

Først opslået (Faktiske)

17. marts 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 7465-CL-0209

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as compounds terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.

IPD-delingstidsramme

Access to participant level data is offered to researchers after publication of the primary manuscript (if applicable) and is available as long as Astellas has legal authority to provide the data.

IPD-delingsadgangskriterier

Researchers must submit a proposal to conduct a scientifically relevant analysis of the study data. The research proposal is reviewed by an Independent Research Panel. If the proposal is approved, access to the study data is provided in a secure data sharing environment after receipt of a signed Data Sharing Agreement.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • CSR

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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