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Células inmunitarias modificadas (células dendríticas autólogas) y una vacuna (Prevnar) después de la radioterapia de haz externo de dosis alta en el tratamiento de pacientes con cáncer de hígado irresecable

30 de septiembre de 2026 actualizado por: Mayo Clinic

Estudio piloto de inyección intratumoral de células dendríticas después de radioterapia de haz externo conformal de dosis alta en pacientes con cáncer de hígado irresecable

This early phase I trial studies the side effects of autologous dendritic cells and a vaccine called Prevnar in combination with immune checkpoint inhibition (with bevacizumab and atezolizumab or druvalumab) in treating patients liver cancer that cannot be removed by surgery (unresectable) after undergoing standard high-dose external beam radiotherapy. Autologous dendritic cells are immune cells generated from patients' own white blood cells that are grown in a special lab and trained to stimulate the immune system to destroy tumor cells. A pneumonia vaccine called Prevnar may also help stimulate the immune system. Bevacizumab is in a class of medications called antiangiogenic agents. It works by stopping the formation of blood vessels that bring oxygen and nutrients to tumor. This may slow the growth and spread of tumor. Immunotherapy with monoclonal antibodies, such as atezolizumab and durvalumab, may help the body's immune system attack the tumor, and may interfere with the ability of tumor cells to grow and spread. Giving autologous dendritic cells and Prevnar in combination with immune checkpoint inhibition after radiotherapy may be safe, and tolerable and may stimulate the body's own immune system to fight against the tumor in patients with unresectable liver cancer.

Descripción general del estudio

Descripción detallada

PRIMARY OBJECTIVE:

I. Evaluation of safety and tolerability of an autologous dendritic cell (DC) vaccine delivered by intra-tumoral injection in patients with primary liver cancer treated with high-dose conformal external beam radiotherapy (EBRT). (Pilot Study) II. Estimate the progression-free survival rate at 2 years post-registration to see if treatment is efficacious compared to historical data in hepatocellular carcinoma (HCC). (Phase II Group 2) II. Estimate the progression-free survival to see if treatment is efficacious compared to historical data in intrahepatic cholangiocarcinoma (iCCA) patients. (Phase II Group 3)

SECONDARY OBJECTIVES:

I. To assess feasibility in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 versus [vs.] 2 vs. 3).

II. To assess overall response rate in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

III. To assess progression free survival in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

IV. To assess clinical benefit rate in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

V. To assess time to response in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

VI. To assess duration of response in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

VII. To assess overall survival in patients with liver cancer treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

RADIOLOGIC STUDY OBJECTIVE:

I. To assess the radiologic response over time of primary liver tumors treated with high-dose conformal EBRT followed by autologous DC vaccine injection by group (Group 1 vs. 2 vs. 3).

CORRELATIVE RESEARCH OBJECTIVES:

I. To monitor patients' immune response after vaccine therapy by group (Group 1 vs. 2 vs. 3).

II. To assess the immune response to pneumococcal 13-valent conjugate vaccine (Prevnar) and similar pneumococcal vaccines by group (Group 1 vs. 2 vs. 3).

OUTLINE:

PILOT STUDY (GROUP I) (CLOSED WITH AMENDMENT 3): Patients with unresectable intrahepatic cholangiocarcinoma (CCA) undergo apheresis for dendric cell manufacturing and standard of care high-dose EBRT for 5 or 15 fractions over 1-3 weeks (cycle 1). Patients then receive autologous dendritic cells intratumorally (IT) on day 1 of cycles 2-8 and pneumococcal 13-valent conjugate vaccine intramuscularly (IM) on day 1 of cycles 2-4 only. Treatment repeats every 28 days for up to 7 cycles in the absence of disease progression or unacceptable toxicity.

PHASE II STUDY (GROUP II): Patients with unresectable HCC undergo apheresis for dendric cell manufacturing and standard of care high-dose EBRT for 5 or 15 fractions over 1-3 weeks (cycle 1). Patients then receive autologous dendritic cells IT on day 1 of cycles 2-8 and pneumococcal 13-valent conjugate vaccine or other pneumococcal vaccine IM on day 1 of cycles 2-4 only. Patients also receive standard of care atezolizumab intravenously (IV) over 30-60 minutes and bevacizumab IV over 30-90 minutes starting on day 2 of cycles 2-8. Treatment repeats every 21 days for up to 7 cycles in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo an esophagogastroduodenoscopy (EGD) at screening and CT, PET/CT and/or MRI, biopsy and urine and blood sample collection throughout the study.

PHASE II STUDY (GROUP III): Patients with iCCA undergo apheresis for dendric cell manufacturing and standard of care high-dose EBRT for 5 or 15 fractions over 1-3 weeks (cycle 1). Patients then receive autologous dendritic cells IT on day 1 of cycles 2-8 and pneumococcal 13-valent conjugate vaccine or other pneumococcal vaccine IM on day 1 of cycles 2-4 only. Patients also receive standard of care atezolizumab IV over 30-60 minutes and durvalumab IV starting on day 2 of cycles 2-8. Treatment repeats every 21 days for up to 7 cycles in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo CT, PET/CT and/or MRI, biopsy and urine and blood sample collection throughout the study.

After completion of study treatment, patients are followed up at 2 weeks and then every 3 months for 1 year (beginning at week 36 or 12 weeks after last autologous dendritic cell dose whichever is earlier). Patients are then followed every 3 months until disease progression, and then every 6 months until 5 years after registration.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

85

Fase

  • Fase 2
  • Fase 1

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Ubicaciones de estudio

    • Minnesota
      • Rochester, Minnesota, Estados Unidos, 55905
        • Reclutamiento
        • Mayo Clinic in Rochester
        • Contacto:
        • Investigador principal:
          • Lewis R. Roberts, MD, PhD
        • Investigador principal:
          • Lionel Kankeu Fonkoua, MD

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Age >= 18 years

  • Pilot study (group 1): Histologic confirmation of intrahepatic CCA (Closed as of amendment 3)

  • Phase II study (group 2): Histologic and/or radiologic confirmation of hepatocellular carcinoma (HCC)

  • Phase II study (group 3): Histologic confirmation of intrahepatic cholangiocarcinoma (iCCA)

  • The following tumor characteristics must be met

    • Unresectable disease: HCC (group 2) or intrahepatic CCA (group 3)

    • Measurable or evaluable disease

    • All lesions should be treatable by EBRT while meeting normal tissue constraints

    • Tumor lesions should be accessible using an ultrasound (US)-guided approach for intratumoral DC injection

    • No evidence of extrahepatic tumor (excluding tumor thrombus) by computed tomography (CT) or magnetic resonance imaging (MRI) scan

      • NOTE: Patients who are not candidates for surgical treatment or for ablation with curative intent are allowed
  • Good candidate for standard of care high-dose conformal EBRT in the view of the investigator

  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1

  • GROUP 2 HCC ONLY: Absolute neutrophil count (ANC) >= 1000/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Absolute lymphocyte count (ALC) >= 500/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Absolute monocyte count (AMC) >= 300/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Platelet count >= 50,000/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Hemoglobin >= 9.0 g/dL (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Total bilirubin < 1.5 mg/dL (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 5 x upper limit of normal (ULN) (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Creatinine =< 2 mg/dL (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Prothrombin time (PT)/international normalized ratio (INR)/activated partial thromboplastin time (aPTT) =< 1.5 x ULN (obtained =< 15 days prior to registration)

  • GROUP 2 HCC ONLY: Absence of proteinuria at screening as demonstrated by one of the following:

    • Urine protein/creatinine (UPC) ratio < 1.0 at screening OR
    • Urine dipstick for proteinuria < 2+ (patients discovered to have >= 2+ proteinuria on dipstick urinalysis at baseline should undergo a 24-hour urine collection and must demonstrate =<1g of protein in 24 hours to be eligible)
  • GROUP 3 iCCA ONLY: Absolute neutrophil count (ANC) ≥ 1000/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Absolute lymphocyte count ≥ 500/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Absolute monocyte count ≥ 300/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Platelet count ≥ 50,000/mm^3 (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Hemoglobin ≥ 9.0 g/dL (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Total bilirubin < 1.5 x ULN (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) and alkaline phosphatase (ALP) ≤ 2.5 x ULN (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: Creatinine ≤ 2 mg/dL (obtained =< 15 days prior to registration)

  • GROUP 3 iCCA ONLY: PT/INR/aPTT ≤ 1.5 x ULN (obtained =< 15 days prior to registration)

    • NOTE: If patient is receiving therapeutic anticoagulation, patient must be on a stable anticoagulant regimen
  • Ability to provide written consent

  • Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study)

  • Willingness to provide blood and tissue samples for correlative research purposes

Exclusion Criteria:

  • Any of the following because this study involves an investigational agent, the genotoxic, mutagenic and teratogenic effects of which on the developing fetus and newborn are unknown:

    • Pregnant persons
    • Nursing persons
    • Persons of childbearing potential who are unwilling to employ highly effective contraception during heterosexual intercourse while on this study and for 5 months after the last dose of study medication
  • Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens

  • Immunocompromised patients and patients known to be HIV positive.

    • NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial if they are stable on anti-retroviral therapy, have a CD4+ T cell count ≥ 200/uL, and have an undetectable viral load
  • Uncontrolled intercurrent illness including, but not limited to:

    • Ongoing or active infection requiring systemic treatment or that could impact patient safety
    • Severe infection ≤ 4 weeks prior to registration, including, but not limited to, hospitalization for complications of infection, bacteremia, or severe pneumonia
    • Significant cardiovascular disease (New York Heart Association [NYHA] class II), symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia
    • Or, psychiatric illness/social situations (e.g., substance abuse) that would limit compliance with study requirements
  • Receiving any other investigational agent that would be considered a treatment for the primary neoplasm

  • Other active malignancy =< 1 year prior to registration that is considered by the investigator to interfere with the current treatment or measurement of outcomes

  • Major surgery =< 4 weeks prior to enrollment (other than diagnostic surgery or surgical spacer placement in preparation for radiation treatment), or anticipation of need for a major surgical procedure during the study

  • History of hypersensitivity or anaphylactoid reactions to pneumococcal vaccine or any component of the formulation, including diphtheria toxoid

  • Active or history of autoimmune disease or immune deficiency, including but not limited to,myasthenia gravis, myositis, autoimmune hepatitis, Crohn's disease, inflammatory bowel disease, antiphospholipid antibody syndrome, rheumatoid arthritis, Sjogren syndrome, systemic lupus erythematosus, Guillain-Barre syndrome, multiple sclerosis, Wegener granulomatosis, or similar conditions

    • NOTE: Exceptions are allowed for:

      • Patients with hypothyroidism on thyroid replacement therapy

      • Patients with type 1 diabetes mellitus on insulin regimen

      • Patients with eczema, psoriasis lichen simplex chronicus, or vitiligo with dermatologic manifestations only (e.g., patients with psoriatic arthritis are excluded) are eligible for the study provided all of the following conditions are met:

        • Rash must cover < 10% of body surface area
        • Disease is well controlled at baseline and requires only low-potency topical corticosteroids
        • There has been no occurrence of acute exacerbations of the underlying condition requiring psoralen plus ultraviolet A radiation, methotrexate, retinoids, biologic agents, oral calcineurin inhibitors, or high potency or oral corticosteroids ≤ 12 months prior to registration
  • Requires anticoagulant treatment (INR > 1.5 x ULN) or use of anti-platelet agents that cannot be discontinued for the intratumoral injection procedure

    • NOTE: Heparin for line patency without detectable lab abnormalities in coagulation will be allowed
  • Corticosteroids =< 2 weeks prior to registration, including oral, intravenous (IV), subcutaneous, or inhaled routes of administration

    • NOTE: Patients on chronic corticosteroids for adrenal insufficiency or other reasons may enroll if they receive less than 10 mg/day of prednisone (or equivalent)

    • NOTE: Exception allowed for patients who need prophylactic steroids prior to imaging for contrast allergies

      • Exception: Patients who received acute, low-dose systemic immunosuppressant medication or a one-time pulse dose of systemic immunosuppressant medication (e.g., 48 hours of corticosteroids for a contrast allergy) are eligible for the study
      • Exception: Patients who received mineralocorticoids (e.g., fludrocortisone), corticosteroids for chronic obstructive pulmonary disease (COPD) or asthma, or low-dose corticosteroids for orthostatic hypotension or adrenal insufficiency are eligible for the study
  • History of myocardial infarction =< 6 months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias

  • Child Pugh class B or C cirrhosis of the liver

  • Previously received immune modulating therapies including but not limited to immune checkpoint inhibitors targeting PD-1 PDL-1 CTLA4, etc.; or prior dendritic cell therapy

  • Prior liver radiation, including radioembolization

  • GROUP 2 ONLY: Barcelona Clinic Liver Cancer (BCLC) stage D disease

  • GROUP 2 ONLY: History of untreated high-risk gastroesophageal varices

  • Active tuberculosis

  • Treatment with therapeutic oral or IV antibiotics ≤ 2 weeks prior to registration

    • NOTE: Exception for patients receiving prophylactic antibiotics (e.g., to prevent a urinary tract infection or chronic obstructive pulmonary disease exacerbation) are eligible for the study
  • Prior allogeneic stem cell or solid organ transplantation

  • Treatment with a live, attenuated vaccine ≤ 4 weeks prior to registration

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: No aleatorizado
  • Modelo Intervencionista: Asignación cruzada
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Phase II Group 2 (EBRT, dendritic cells, Prevnar, atezo, bev)

Patients with unresectable HCC undergo apheresis for dendric cell manufacturing and standard of care high-dose EBRT for 5 or 15 fractions over 1-3 weeks (cycle 1). Patients then receive autologous dendritic cells IT on day 1 of cycles 2-8 and pneumococcal 13-valent conjugate vaccine or other pneumococcal vaccine IM on day 1 of cycles 2-4 only. Patients also receive standard of care atezolizumab IV over 30-60 minutes and bevacizumab IV over 30-90 minutes starting on day 2 of cycles 2-8. Treatment repeats every 21 days for up to 7 cycles in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo an EGD at screening and CT, PET/CT and/or MRI, biopsy and urine and blood sample collection throughout the study.

Given IV

Otros nombres:
  • Avastin
  • ABP 215
  • Anti-VEGF
  • Anticuerpo monoclonal humanizado anti-VEGF
  • Anticuerpo monoclonal anti-VEGF SIBP04
  • RhuMAb anti-VEGF
  • Bevacizumab awwb
  • Bevacizumab Biosimilar ABP 215
  • Bevacizumab Biosimilar BEVZ92
  • Bevacizumab Biosimilar BI 695502
  • Bevacizumab Biosimilar CBT 124
  • Bevacizumab Biosimilar CT-P16
  • Bevacizumab Biosimilar FKB238
  • Bevacizumab Biosimilar GB-222
  • Bevacizumab Biosimilar HD204
  • Bevacizumab Biosimilar HLX04
  • Bevacizumab Biosimilar IBI305
  • Bevacizumab biosimilar LY01008
  • Bevacizumab Biosimilar MIL60
  • Bevacizumab Biosimilar Mvasi
  • Bevacizumab Biosimilar MYL-1402O
  • Bevacizumab Biosimilar QL 1101
  • Bevacizumab biosimilar RPH-001
  • Bevacizumab Biosimilar SCT501
  • Bevacizumab Biosimilar Zirabev
  • Bevacizumab-awwb
  • Bevacizumab-bvzr
  • BP102
  • Biosimilar BP102
  • HD204
  • Inmunoglobulina G1 (factor de crecimiento endotelial vascular anti-humano de cadena gamma de rhuMab-VEGF monoclonal de ratón humano), disulfuro con cadena ligera de rhuMab-VEGF monoclonal de ratón humano, dímero
  • Mvasi
  • MYL-1402O
  • Anticuerpo monoclonal anti-VEGF humanizado recombinante
  • rhuMab-VEGF
  • SCT501
  • SIBP 04
  • SIBP-04
  • SIBP04
  • Zirabev
  • QL1101
  • Bevacizumab Biosimilar QL1101
  • Vegzelma
  • Alymsys
  • Aybintio
  • Onbevzi
  • Avzivi
  • Oyavás

Undergo MRI

Otros nombres:
  • Resonancia magnética
  • Imágenes Médicas, Resonancia Magnética / Resonancia Magnética Nuclear
  • SRES
  • RMN
  • Imágenes de resonancia magnética nuclear
  • Imágenes por resonancia magnética (IRM)
  • resonancia magnética nuclear
  • Resonancia magnética estructural

Undergo biopsy

Otros nombres:
  • Caja
  • BIOPSIA

Undergo CT or PET/CT

Otros nombres:
  • Connecticut
  • GATO
  • Análisis de gato
  • Tomografía Axial Computarizada
  • Tomografía computarizada
  • tomografía axial computarizada
  • Tomografía computarizada (TC)
  • Escaneo de gato de diagnóstico

Undergo PET/CT

Otros nombres:
  • Imágenes médicas, tomografía por emisión de positrones
  • MASCOTA
  • Escaneo de mascotas
  • PT
  • tomografía por emisión de positrones

Given IV

Otros nombres:
  • Tecentriq
  • MPDL3280A
  • RO5541267
  • RG7446
  • MPDL328OA
  • MPDL-3280A

Undergo urine and blood sample collection

Otros nombres:
  • Recolección de muestras biológicas
  • Muestra biológica recolectada
  • Coleccion de especimenes

Undergo high-dose EBRT

Otros nombres:
  • EBRT
  • Radioterapia definitiva
  • Radiación de haz externo
  • Radioterapia de haz externo
  • Haz externo RT
  • radiación externa
  • Radioterapia externa
  • radiación de haz externo
  • Radiación, haz externo
  • Teleradioterapia
  • Teleterapia
  • Radiación de teleterapia
  • Radioterapia de haz externo (convencional)

Undergo apheresis

Otros nombres:
  • Aféresis
  • Aferido
  • Eliminación de componentes sanguíneos
  • Colección, aféresis/leucaféresis
  • Hemaféresis

Given IM

Otros nombres:
  • Prevenar 13
  • PCV 13
  • Vacuna PCV13

Given IT

Undergo EGD

Otros nombres:
  • EGD
  • Endoscopia superior
Experimental: Pilot study (pheresis, EBRT, dendritic cells, Prevnar)

Patients with unresectable intrahepatic CCA undergo apheresis for dendric cell manufacturing and standard of care high-dose EBRT for 5 or 15 fractions over 1-3 weeks (cycle 1). Patients then receive autologous dendritic cells IT on day 1 of cycles 2-8 and pneumococcal 13-valent conjugate vaccine IM on day 1 of cycles 2-4 only. Treatment repeats every 28 days for up to 7 cycles in the absence of disease progression or unacceptable toxicity. (CLOSED WITH AMENDMENT 3)

Undergo high-dose EBRT

Otros nombres:
  • EBRT
  • Radioterapia definitiva
  • Radiación de haz externo
  • Radioterapia de haz externo
  • Haz externo RT
  • radiación externa
  • Radioterapia externa
  • radiación de haz externo
  • Radiación, haz externo
  • Teleradioterapia
  • Teleterapia
  • Radiación de teleterapia
  • Radioterapia de haz externo (convencional)

Undergo apheresis

Otros nombres:
  • Aféresis
  • Aferido
  • Eliminación de componentes sanguíneos
  • Colección, aféresis/leucaféresis
  • Hemaféresis

Given IM

Otros nombres:
  • Prevenar 13
  • PCV 13
  • Vacuna PCV13

Given IT

Experimental: Phase II Group 3 (EBRT, dendritic cells, Prevnar, atezo, tir)

Patients with iCCA undergo apheresis for dendric cell manufacturing and standard of care high-dose EBRT for 5 or 15 fractions over 1-3 weeks (cycle 1). Patients then receive autologous dendritic cells IT on day 1 of cycles 2-8 and pneumococcal 13-valent conjugate vaccine or other pneumococcal vaccine IM on day 1 of cycles 2-4 only. Patients also receive standard of care durvalumab IV starting on day 2 of cycles 2-8. Treatment repeats every 21 days for up to 7 cycles in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo CT, PET/CT and/or MRI, biopsy and urine and blood sample collection throughout the study.

Undergo MRI

Otros nombres:
  • Resonancia magnética
  • Imágenes Médicas, Resonancia Magnética / Resonancia Magnética Nuclear
  • SRES
  • RMN
  • Imágenes de resonancia magnética nuclear
  • Imágenes por resonancia magnética (IRM)
  • resonancia magnética nuclear
  • Resonancia magnética estructural

Undergo biopsy

Otros nombres:
  • Caja
  • BIOPSIA

Undergo CT or PET/CT

Otros nombres:
  • Connecticut
  • GATO
  • Análisis de gato
  • Tomografía Axial Computarizada
  • Tomografía computarizada
  • tomografía axial computarizada
  • Tomografía computarizada (TC)
  • Escaneo de gato de diagnóstico

Undergo PET/CT

Otros nombres:
  • Imágenes médicas, tomografía por emisión de positrones
  • MASCOTA
  • Escaneo de mascotas
  • PT
  • tomografía por emisión de positrones

Given IV

Otros nombres:
  • Tecentriq
  • MPDL3280A
  • RO5541267
  • RG7446
  • MPDL328OA
  • MPDL-3280A

Given IV

Otros nombres:
  • Imfinzi
  • MEDI-4736
  • MEDI4736
  • MEDIO 4736

Undergo urine and blood sample collection

Otros nombres:
  • Recolección de muestras biológicas
  • Muestra biológica recolectada
  • Coleccion de especimenes

Undergo high-dose EBRT

Otros nombres:
  • EBRT
  • Radioterapia definitiva
  • Radiación de haz externo
  • Radioterapia de haz externo
  • Haz externo RT
  • radiación externa
  • Radioterapia externa
  • radiación de haz externo
  • Radiación, haz externo
  • Teleradioterapia
  • Teleterapia
  • Radiación de teleterapia
  • Radioterapia de haz externo (convencional)

Undergo apheresis

Otros nombres:
  • Aféresis
  • Aferido
  • Eliminación de componentes sanguíneos
  • Colección, aféresis/leucaféresis
  • Hemaféresis

Given IM

Otros nombres:
  • Prevenar 13
  • PCV 13
  • Vacuna PCV13

Given IT

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Incidence of significant toxicity (Pilot study)
Periodo de tiempo: Up to completion of cycle 2 (each cycle is 28 days)

A significant toxicity is defined as a dose limiting toxicity that is possibly, probably, or definitely related to dendritic cell (DC) treatment. Toxicities will be assessed using the Cancer Therapy Evaluation Program active version of the Common Terminology Criteria for Adverse Events.

Up to completion of cycle 2 (each cycle is 28 days)
Progression-free survival rate at 2 years (Phase II)
Periodo de tiempo: At 2 years

Defined as the time from registration to disease progression or death due to all causes.

At 2 years
PFS (Phase II Group 3)
Periodo de tiempo: Up to 5 years

Defined as the time from registration to disease progression or death due to all causes.

Up to 5 years

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Overall response rate
Periodo de tiempo: Up to 1 year post treatment

The overall response rate will be estimated by the number of patients with an objective status of complete response (CR) or partial response (PR) divided by the total number of evaluable patients. Exact binomial 95% confidence intervals for the true overall response rate will be calculated.

Up to 1 year post treatment
Number of patients who received at least one dose of intratumoral DC injection
Periodo de tiempo: Up to 1 year post treatment

The feasibility of the regimen will be estimated by the number of patients who received at least one dose of intratumoral DC injection divided by the total number of patients who received apheresis.

Up to 1 year post treatment
Clinical benefit rate
Periodo de tiempo: Up to 1 year post treatment

The clinical benefit rate will be estimated by the number of patients with an objective status of stable disease or CR or PR at any time divided by the total number of evaluable patients. Exact binomial 95% confidence intervals for the true clinical benefit rate will be calculate

Up to 1 year post treatment
Time to response
Periodo de tiempo: Up to 1 year post treatment

Time to response is defined for all evaluable patients who have achieved an objective response as the date of initiation of vaccination treatment to the date at which the patient's objective status is first noted to be either a CR or PR. Time to response will be summarized descriptively using Kaplan-Meier methodology.

Up to 1 year post treatment
Duration of response
Periodo de tiempo: Up to 1 year post treatment

Duration of response is defined for all evaluable patients who have achieved an objective response as the date at which the patient's objective status is first noted to be either a CR or PR to the earliest date progression is documented. Duration of response will be summarized descriptively using Kaplan-Meier methodology.

Up to 1 year post treatment
Overall survival
Periodo de tiempo: Up to 5 years

Defined as the time from registration to death from any cause.

Up to 5 years
Progression-free survival
Periodo de tiempo: Up to 5 years

Defined as the time from registration to disease progression or death due to all causes.

Up to 5 years

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in target lesion measurements
Periodo de tiempo: Baseline up to 1 year post treatment

All enhancing lesions will be evaluated over time for each patient. The percent change from baseline in target lesion measurements will be assessed over time. Differences in values over time will be summarized descriptively and graphically.

Baseline up to 1 year post treatment
Change in immunologic correlates before and after vaccination treatment
Periodo de tiempo: Baseline up to 1 year post treatment

Change in immunologic correlates before and after vaccination treatment will be evaluated and summarized both quantitatively and graphically. Each of the correlative endpoints will be summarized individually, but will also be evaluated in terms of their relationships to one another; i.e., will use Spearman rank correlation coefficient to assess the correlations between baseline levels as well as between changes before and after treatment in these immunologic markers. In addition, these immunologic markers will be correlated with cancer and treatment related outcomes (e.g. response, adverse events). Relationships will also be explored graphically using scatter plots.

Baseline up to 1 year post treatment

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Investigadores

  • Investigador principal: Lewis R. Roberts, MD, PhD, Mayo Clinic in Rochester
  • Investigador principal: Lionel Kankeu Fonkoua, MD, Mayo Clinic in Rochester

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

19 de septiembre de 2019

Finalización primaria (Estimado)

31 de agosto de 2030

Finalización del estudio (Estimado)

31 de agosto de 2030

Fechas de registro del estudio

Enviado por primera vez

6 de mayo de 2019

Primero enviado que cumplió con los criterios de control de calidad

7 de mayo de 2019

Publicado por primera vez (Actual)

8 de mayo de 2019

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

5 de octubre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

30 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • MC1641
  • R01CA274985 (Subvención/contrato del NIH de EE. UU.)
  • 16-009335 (Otro identificador: Mayo Clinic Institutional Review Board)
  • R01CA294704 (Subvención/contrato del NIH de EE. UU.)

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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