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Wpływ apalutamidu na ekspresję EGFR u pacjentów z nieinwazyjnym rakiem pęcherza moczowego

25 września 2026 zaktualizowane przez: University of Wisconsin, Madison

Randomizowana próba apalutamidu w nieinwazyjnym raku pęcherza moczowego

This phase I trial evaluates the effects of bicalutamide, compared to no study drug (NSD), on epidermal growth factor receptor (EGFR) protein expression in patients with non-muscle invasive bladder cancer. Bicalutamide is in a class of medications called androgen receptor inhibitors. It works by blocking the effects of androgen (a male reproductive hormone) to stop the growth and spread of tumor cells. Previous studies have suggested that expression of a protein called EGFR on tumor cells is related to bladder cancer disease progression. This trial may help doctors evaluate if bicalutamide has any effect on EGFR expression in patients with non-muscle invasive bladder cancer.

Przegląd badań

Status

Rekrutacyjny

Warunki

Interwencja / Leczenie

Szczegółowy opis

PRIMARY OBJECTIVE:

1. To compare epidermal growth factor receptor (EGFR) messenger ribonucleic acid (mRNA) expression measured by reverse transcriptase polymerase chain reaction (rt-PCR) in normal appearing urothelium adjacent to tumor (measured as a ratio relative to urothelium and lamina-propria specific markers) in participants treated with anti-androgen therapy versus (vs.) participants given NSD.

SECONDARY OBJECTIVES:

  1. To determine effect of bicalutamide on EGFR expression (by rtPCR) in the subgroup of patients whose normal appearing urothelium adjacent to tumor expresses the androgen receptor (AR) (at least "1" by immunohistochemistry [IHC] score).
  2. To correlate AR expression in adjacent urothelium (by IHC score) with EGFR expression by rtPCR in participants randomized to bicalutamide versus NSD.
  3. Comparison of pre vs. post intervention urinary biomarkers (CxBladderTM) in both groups, examining the 5 RNAs (by RT-PCR) that make up the test, both as a group and each RNA separately.

EXPLORATORY OBJECTIVES:

  1. Comparison of AR and EGFR (and possibly phosphorylated EGFR [pEGFR]) staining levels (low, moderate, high; by immunocytology) in pre-treatment vs. post-treatment bladder wash immunocytology.
  2. To compare expression of direct androgen response gene (ADAR)-2 measured by rtPCR in normal appearing adjacent (to tumor) urothelium that does and does not express AR (by IHC), in participants randomized to bicalutamide versus NSD.
  3. Ki-67 expression (by IHC) in normal appearing urothelium adjacent to tumor in participants randomized to bicalutamide versus NSD.
  4. Subgroup analysis of Ki-67 expression in the AR+ subgroup.
  5. Differences in expression of AR, EGFR, pEGFR, and Ki-67 (by semi-quantitative IHC) in tumor in participants randomized to bicalutamide versus NSD.
  6. Change in EGFR expression by rt-PCR in tumor in participants randomized to bicalutamide versus NSD.
  7. Fibroblast growth factor receptor 3 (FGFR3) mutation analysis in deoxyribonucleic acid (DNA) extracted from formalin fixed paraffin embedded (FFPE) blocks from neighboring normal urothelium and tumor tissue in participants randomized to bicalutamide versus NSD.
  8. Define changes in the tumor immune microenvironment pre- and post-bicalutamide through liquid biopsies of blood and urine using high-dimensional flow cytometry.
  9. Analyze tumor (biopsy specimen) immune microenvironment via multiplex immunofluorescence and spatial transcriptomics.
  10. Other exploratory markers such as changes in the urinary microbiome in bladder cancer participants randomized to bicalutamide versus NSD.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM 1: Patients receive bicalutamide orally (PO) once daily (QD) on days 1-21. Patients undergo TURBT on day 21. Up to 28 days of bicalutamide prior to TURBT is permitted in the absence of unacceptable toxicity. Patients undergo blood and urine sample collection throughout the study. Patients may optionally undergo tumor biopsy at baseline.

ARM 2: Patients receive NSD PO QD on days 1-21. Patients undergo TURBT on day 21. Up to 28 days of NSD prior to TURBT is permitted in the absence of unacceptable toxicity. Patients undergo blood and urine sample collection throughout the study. Patients may optionally undergo tumor biopsy at baseline.

After completion of study treatment, patients are followed up 20-30 days after TURBT.

Typ studiów

Interwencyjne

Zapisy (Szacowany)

80

Faza

  • Faza 1

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

    • Arizona
      • Tucson, Arizona, Stany Zjednoczone, 85719
        • Rekrutacyjny
        • University of Arizona Cancer Center - Prevention Research Clinic
        • Kontakt:
        • Główny śledczy:
          • Juan Chipollini
    • California
      • Los Angeles, California, Stany Zjednoczone, 90048
        • Jeszcze nie rekrutacja
        • Cedars Sinai Medical Center
        • Kontakt:
        • Główny śledczy:
          • Michael A. Ahdoot
    • Maryland
      • Bethesda, Maryland, Stany Zjednoczone, 20892
        • Jeszcze nie rekrutacja
        • National Cancer Institute Urologic Oncology Branch
        • Kontakt:
        • Główny śledczy:
          • Sandeep Gurram
    • New York
      • Rochester, New York, Stany Zjednoczone, 14642
        • Jeszcze nie rekrutacja
        • University of Rochester
        • Kontakt:
        • Główny śledczy:
          • Edward M. Messing
    • Ohio
      • Columbus, Ohio, Stany Zjednoczone, 43210
        • Rekrutacyjny
        • Ohio State University Comprehensive Cancer Center
        • Kontakt:
        • Główny śledczy:
          • Debasish Sundi
    • Wisconsin
      • Madison, Wisconsin, Stany Zjednoczone, 53792
        • Rekrutacyjny
        • University of Wisconsin Carbone Cancer Center - University Hospital
        • Kontakt:
        • Główny śledczy:
          • Kyle A. Richards

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Męski

Opis

Inclusion Criteria:

  • Biologic male adults (>= 18 years old)

    • Note: Because no dosing or adverse event (AE) data are currently available on the use of bicalutamide in participants < 18 years of age, children are excluded from this study but will be eligible for future pediatric trials, if applicable
  • Have suspected new or occasionally recurrent NMIBC (i.e., </= 2 prior NMIBC episodes in the 18 months preceding the cystoscopy where the index tumor was identified) on clinic-based cystoscopy or imaging as viewed by an American Urological Association (AUA) board-certified urologist

  • Have had cross sectional imaging of the abdomen and pelvis (computed tomography [CT] or magnetic resonance imaging [MRI] with or without contrast) within 6 months prior to enrollment with no signs of upper tract urothelial cancer (UC), invasive, nor metastatic disease

    • Note: If adenopathy or upper tract abnormalities are identified, a negative biopsy and or ureteroscopy is required prior to enrollment
  • Participants with single and multiple tumor lesions

  • In the opinion of the treating urologist, the participant is suitable to undergo surgery.

  • Participants may have received intravesical chemotherapy at any time.

  • Total bilirubin =< 1.5 x institutional upper limit of normal (note: in participants with Gilbert's syndrome, if total bilirubin is > 1.5 x upper limit of normal, measure direct and indirect bilirubin and if direct bilirubin is =< 1.5 x upper limit of normal, participants may be eligible)

  • Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT]) =< 2 × institutional upper limit of normal

  • Alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase [SGPT]) =< 2 × institutional upper limit of normal

  • Serum Testosterone >= 250 ng/dL

  • Thyroid stimulating hormone (TSH) within institutional normal

  • The effects of bicalutamide on the developing human fetus at the recommended therapeutic dose are unknown. For this reason, men who are having sex must wear a condom when engaging in any activity that allows for passage of ejaculate to another person throughout the course of the study and 4 months after receiving last dose of study intervention. Male participants should also be advised of the benefit for a female partner to use a highly effective method of contraception as a condom may break or leak. Additionally, men must agree to not donate sperm for the purpose of reproduction during the study and for a minimum of 4 months after receiving the last dose of study intervention

  • Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria:

  • Participants who have had a previous exposure to sex hormone (e.g., exogenous androgens) or anti-androgenic therapies (e.g., luteinizing hormone-releasing hormone [LHRH] agonists, LHRH antagonists, 5 alpha reductase-inhibitors, abiraterone or other anti-androgens) within 6 months of accrual
  • Participants taking Coumarin derivative anticoagulation (e.g., warfarin). Other anticoagulation medications are allowed.
  • Participants receiving any other investigational agents.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to bicalutamide.
  • History of prior or concurrent muscle invading UC, or concurrent prostatic urethral, urethral, or upper tract UC or non-urothelial bladder cancer
  • History of radiation therapy to the pelvis, prostate or prostatic bed, or rectum
  • Any condition (uncontrolled intercurrent illness, psychiatric illness, or social situation) for which, in the opinion of the investigator, participation would not be in the best interest of the participant (e.g., compromise the well-being) or that could prevent, limit, or confound the protocol-specified assessments.
  • Allergy or hypersensitivity to bicalutamide, or excipients, unable or unwilling to take ADT.
  • Plans to father a child while enrolled in this study or within 4 months after the last dose of study intervention.
  • Participants with suspected Carcinoma in Situ (CIS) without suspected Ta or T1 disease are not eligible.
  • Participants with a history of documented CIS within 2 years are not eligible.
  • Participants who have received Gacillus Calmette-Guerin (BCG) within 2 years are not eligible.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Zapobieganie
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Poczwórny

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Arm 1 (bicalutamide,TURBT)

Patients receive bicalutamide PO QD on days 1-21. Patients undergo TURBT on day 21. Up to 28 days of bicalutamide prior to TURBT is permitted in the absence of unacceptable toxicity. Patients undergo blood and urine sample collection throughout the study. Patients may optionally undergo tumor biopsy at baseline.

Ancillary studies

Undergo tumor biopsy

Inne nazwy:
  • Bx
  • TYP_BIOPSY
  • Biopsja

Undergo blood and urine sample collection

Inne nazwy:
  • Pobieranie próbek biologicznych
  • Zebrano próbki biologiczne
  • Kolekcja próbek

Given PO

Inne nazwy:
  • Casodex

Undergo TURBT

Inne nazwy:
  • Resekcja przezcewkowa (TURBT)
  • TURBT
Eksperymentalny: Arm 2 (TURBT)

Patients undergo TURBT on day 21. Patients undergo blood and urine sample collection throughout the study. Patients may optionally undergo tumor biopsy at baseline.

Ancillary studies

Undergo tumor biopsy

Inne nazwy:
  • Bx
  • TYP_BIOPSY
  • Biopsja

Undergo blood and urine sample collection

Inne nazwy:
  • Pobieranie próbek biologicznych
  • Zebrano próbki biologiczne
  • Kolekcja próbek

Undergo TURBT

Inne nazwy:
  • Resekcja przezcewkowa (TURBT)
  • TURBT

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Average Epidermal Growth Factor Receptor (EGFR) expression level
Ramy czasowe: Up to 28 days

Will be analyzed as a continuous variable. A two-sample t-test will be conducted to test whether there are significant differences of the log-transformed EGFR expression level (measured by reverse transcriptase polymerase chain reaction [rtPCR]) in normal appearing urothelium adjacent to tumor in participants treated with anti-androgen therapy versus (vs.) NSD participants. In case the normality assumption of the two-sample t-test does not hold, Wilcoxon rank-sum test will be performed as a sensitivity analysis. Considering androgen receptor (AR) status can be a treatment effect modifier, a regression analysis will also be performed with the log-transformed EGFR expression level as the outcome and treatment status (bicalutamide or NSD), AR status, and treatment-AR interaction as the predictors.

Up to 28 days

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Effect of bicalutamide on EGFR expression
Ramy czasowe: Up to 28 days

A two-sample Wilcoxon rank-sum test will be conducted to compare the difference of EGFR expression in AR positive participants treated with and without bicalutamide.

Up to 28 days
AR expression in adjacent urothelium
Ramy czasowe: Up to 28 days

Will evaluate the correlation between AR expression in adjacent urothelium with EGFR expression. Pearson correlation and Spearman's rank correlation will be calculated between the AR expression and EGFR expression.

Up to 28 days
Pre vs. post intervention urinary biomarkers
Ramy czasowe: Up to 28 days

Comparison of pre vs. post intervention urinary biomarkers (CxBladderTM) in both groups, examining the 5 ribonucleic acids (RNAs) (by rtPCR) that make up the test, both as a group and each RNA separately. Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days

Inne miary wyników

Miara wyniku
Opis środka
Ramy czasowe
AR and EGFR (and possibly phosphorylated EGFR [pEGFR]) staining levels
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Expression of direct androgen response gene (ADAR)-2
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Ki-67 expression
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Ki-67 expression in the AR+ subgroup
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Differences in expression of AR, EGFR, pEGFR, and Ki-67
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Change in EGFR expression in tumor from participants randomized to bicalutamide versus NSD
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Analysis of fibroblast growth factor receptor 3 (FGFR3) in deoxyribonucleic acid (DNA)
Ramy czasowe: Up to 28 days

Extracted from fixed paraffin embedded (FFPE) blocks from neighboring normal urothelium and tumor tissue in participants treated with or without bicalutamide. Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
Changes in the tumor immune microenvironment pre- and post-bicalutamide
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions.

Up to 28 days
Analysis of tumor (biopsy specimen) infiltrating CD8+ T-cells
Ramy czasowe: Up to 28 days

The tumor immune microenvironment will be analyzed via multiplex immunofluorescence and spatial transcriptomics. Assessments will include CD8+ T-cell functional markers: TCF1/Tcf7 of CD44+, CD62L, PD-1, TIM3 and SLAMF6. Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days
AR, EGFR, and pEGFR in biopsies of tumors
Ramy czasowe: At index cystoscopy and TURBT

Optional biopsy tissue will be used to compare AR, EGFR, and pEGFR in biopsies of tumors done at index cystoscopy vs. transurethral resection of bladder tumor in participants randomized to bicalutamide versus NSD.

At index cystoscopy and TURBT
Exploratory markers
Ramy czasowe: Up to 28 days

Will be summarized by descriptive statistics such as rates and proportions and compared between NSD and bicalutamide using nonparametric tests such as the Kruskal-Wallis test.

Up to 28 days

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Współpracownicy

Śledczy

  • Główny śledczy: Edward M Messing, University of Wisconsin, Madison

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Rzeczywisty)

25 czerwca 2026

Zakończenie podstawowe (Szacowany)

1 czerwca 2028

Ukończenie studiów (Szacowany)

1 grudnia 2028

Daty rejestracji na studia

Pierwszy przesłany

27 sierpnia 2022

Pierwszy przesłany, który spełnia kryteria kontroli jakości

27 sierpnia 2022

Pierwszy wysłany (Rzeczywisty)

30 sierpnia 2022

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

30 września 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

25 września 2026

Ostatnia weryfikacja

1 września 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • 2026-0131
  • P30CA014520 (Grant/umowa NIH USA)
  • UG1CA242635 (Grant/umowa NIH USA)
  • NCI-2022-06871 (Identyfikator rejestru: CTRP (Clinical Trial Reporting Program))
  • INT22-09-01 (Inny identyfikator: DCP)
  • 2026-0131 (Inny identyfikator: UWCCC)
  • Protocol Version 8/26/26 (Inny identyfikator: DCP)

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

TAK

Opis planu IPD

NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Tak

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

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