Multitargeted Recombinant Ad5 PSA/MUC-1/Brachyury-Based Immunotherapy (TriAdeno) Vaccine With IL-15 Superagonist N-803 in Participants With Clinically Localized Prostate Cancer Undergoing Active Surveillance
Adenocarcinoma · Prostate Cancer · Neoplasms · Carcinoma · Neoplasms, Glandular and Epithelial · Neoplasms by Histologic Type
De qué trata este estudio
El registro indica que este estudio recluta participantes. La disponibilidad puede variar por centro.
- Tipo de estudio
- De intervención
- Fase
- Fase 2
- Rango de edad
- 18 años - 120 años
- Sexo admitido
- Masculino
- Voluntarios sanos
- No aceptados
- Participantes
- 52 Estimado
Estos son puntos de partida, no una decisión de elegibilidad. El equipo debe revisar todos los requisitos.
Las explicaciones y la navegación están en español. Los textos proporcionados por el registro, incluidos títulos, resúmenes y criterios, se conservan en su idioma original. Puedes pedir orientación en español a WCR.
Acerca de la investigación
Background:
Prostate cancer is the second most common cause of cancer-related death among men in the United States. Early-stage, low-grade prostate cancer is managed with active monitoring. However, 35% of men with this cancer will need treatment within 5 years because of tumor growth. Researchers want to know if a new vaccine that targets 3 anti-cancer proteins (TriAdeno) plus a drug (N-803) approved for bladder cancer can help stop prostate tumors from growing.
Objective:
To test TriAdeno and N-803 in people with early-stage prostate cancer.
Eligibility:
People aged 18 years and older with early-stage low- or medium-risk prostate cancer.
Design:
Participants will be screened. They will have a physical exam with blood tests. They will have a test of their heart function. They will have an imaging scan. They may have a rectal exam.
TriAdeno is injected under the skin of the upper thigh; N-803 is injected under the skin of the abdomen. Participants will be treated in up to four 21-day cycles. They will get both injections on the first day of each cycle.
Participants may opt to complete a memory aid: They may record all of their symptoms for 7 days after each injection. They may also complete a questionnaire about their prostate symptoms.
Blood tests, imaging scans, and other tests will be repeated during the study.
A tissue sample (biopsy) of the tumor will be collected during or after cycle 2; a second biopsy may be taken about 1 year later.
Participants will have follow-up phone calls for 5 years....
Leer la descripción completa
Background:
- Prostate cancer (PCa) is the most common non-cutaneous cancer and second most common cause of cancer-related death among men living in the United States.
- With increasing detection of localized, low-grade PCa in the prostate-specific antigen (PSA) screening era, active surveillance of PCa has emerged as a viable management strategy in selected, favorable risk population. Though active surveillance is the preferred management strategy for low-grade PCa and an option for selected favorable, intermediate risk disease according to the National Comprehensive Cancer Network (NCCN), up to 35% of men will need radical therapy within 5 years due to progression of PCa.
- Vaccine strategies represent a novel therapeutic approach in the prevention and possible treatment of early-stage PCa. A new trivalent vaccine which targets 3 tumor-associated antigens (PSA, brachyury, and MUC-1) has been shown to induce an immune response in a Phase I study of patients with metastatic castrate-resistant PCa.
- N-803 is an IL-15 agonist that activates and expands T cells and NK cells. N-803 enhances anti-tumor activity in combination with tumor-targeted vaccines. Clinically, multiple studies have demonstrated the safety of tumor-targeted vaccine in combination with PD-1/PD-L1 blockade. Adding N-803 to PD-1/PD-L1 blockade can produce antitumor responses in disease states where responses to PD-1/PD-L1 alone would not be expected.
- The TriAdeno vaccine has not been evaluated in populations with early stage, low grade PCa.
Primary Objective:
-To determine the effect of an Ad5 PSA/MUC-1/brachyury-based immunotherapy vaccine (TriAdeno) with IL-15 superagonist N-803 on immune infiltration of the local tumor environment by comparing pre- and post-treatment CD8+ and CD4+ T-cell density within the malignant portion of prostate biopsies in participants on active surveillance for low and intermediate risk prostate cancer
Eligibility:
- Biopsy-proven, organ confined low or intermediate risk adenocarcinoma of the prostate
- Age \>=18 years
- Serum PSA \<20 ng/mL (or \<10 ng/mL for participants being treated with 5-alpha-reductase inhibitors)
- Eastern Cooperative Oncology Group (ECOG) performance status \<=1
Design:
- This is an open-label, non-randomized Phase II trial of TriAdeno vaccine given concurrently with N-803 in participants with localized, early stage, low and intermediate risk PCa on active surveillance.
- The TriAdeno vaccines will be administered subcutaneously (SC) at doses of 5x1011 viral particles (VP) on Day 1 of every 21-day cycle for up to four (4) cycles.
- N-803 will be administered SC at 15 mcg/kg on Day 1 of every 21-day cycle for up to four (4) cycles.
- Up to 49 participants may be treated.
¿Quién podría participar?
La lista siguiente contiene el texto del patrocinador. Puede incluir condiciones, tratamientos previos, resultados de pruebas y otros requisitos. Aparecer en tu búsqueda no significa que califiques.
- INCLUSION CRITERIA:
- Histologically confirmed diagnosis of organ confined, low- or intermediate-risk PCa (Gleason grade group 1 or 2) identified in at least one prostate biopsy core. Biopsies performed at outside institutions should have Gleason score confirmed at the NCI by a genitourinary (GU) pathologist.
- Participants must be on active surveillance.
- Pre-study treatment tissue availability (at least one formalin-fixed paraffin embedded \[FFPE\] biopsy core or one H\&E-stained slide and at least 5 unstained slides) obtained between 3 and 24 months prior to treatment initiation is mandatory for study initiation.
- Serum PSA level of \<20 ng/mL (or \<10ng/mL for participants being treated with 5- alpha-reductase inhibitors)
- Clinical stage \<=T2a by digital rectal exam (DRE)
- Age \>=18 years
- Eastern Cooperative Oncology Group (ECOG) performance status \<=1.
- Adequate organ and marrow function as defined below:
- Absolute neutrophil count (ANC) \>=1.0 x 10\^9/L
- Hemoglobin (Hgb) \>=9 g/dL
- Platelets \>=75,000/mcL
- Prothrombin International Normalized Ratio (INR) \<1.5 x upper limit of normal (ULN)
- Partial thromboplastin time (PTT) \<1.5 x ULN
- Total bilirubin \<1.5 x ULN
- Aspartate aminotransferase (AST) \<=2.5 x ULN
- Alanine aminotransferase (ALT) \<=2.5 x ULN
- Creatinine \<=1.5 x ULN
OR
--Calculated Creatinine clearance \>=40 mL/min/1.73 m\^2 for individuals with creatinine levels above institutional normal (using either Chronic Kidney Disease Epidemiology Collaboration \[CKD-EPI\] equation)
- Treatment with steroid therapy must have a washout of at least 6 weeks prior to initiation of study treatment. Physiologic (replacement) doses of steroids as well as nasal, topical, or inhaled steroids are allowed.
- Vaccination with a live (attenuated) vaccine (e.g., FluMist(R)) or a killed (inactivated)/subunit vaccine (e.g., PNEUMOVAX(R), Fluzone(R)) must occur not sooner than 28 days or 14 days, respectively, prior to initiation of study treatment.
- Participants must agree to use an effective method of contraception (barrier, surgical sterilization, abstinence) for the duration of the study treatment and up to one (1) month after the last study drug injection. Participants must not freeze or donate sperm within the same period.
- Participants must be able to understand and willing to sign a written informed consent document.
EXCLUSION CRITERIA:
- Prior treatment for PCa by surgery, radiation, local ablative (i.e., cryosurgery or highintensity focused ultrasound), or androgen-deprivation therapy.
- Evidence of PCa with metastatic disease.
- Prior treatment with adenovirus-based vector immunotherapy, adenovirus-based vaccines, or investigational vaccines.
- Prior solid organ or bone marrow transplant.
- Immunodeficiency or splenectomy.
- Presence of a known active acute or chronic infection, including human immunodeficiency virus (HIV), confirmed by PCR, and hepatitis B virus (HBV) and hepatitis C virus (HCV), as determined by hepatitis B surface antigen (HBsAg) and HCV serology.
- History of autoimmune disease (active or past), except for autoimmune-related thyroid disease, type I diabetes, and vitiligo if the condition(s) is well controlled.
- History of heart disease, such as congestive heart failure (class II, III, or IV defined by the New York Heart Association functional classification), history of unstable or poorly
controlled angina, or history (\<1 year prior to initiation of study therapy) of ventricular arrhythmia.
- Acute or chronic skin disorders that will interfere with injection into the skin of the extremities or subsequent assessment of potential skin reactions.
- Second malignancy within 3 years prior to initiation of study therapy. Note: Individuals with curatively treated non-melanoma skin cancers or non-muscle invasive bladder cancer will not be excluded.
- History of herbal products that may decrease PSA levels (e.g., saw palmetto).
- Participants who have undergone surgery within 4 weeks prior to initiation of study therapy.
- Participants receiving any other investigational agents within 30 days prior to initiation of study therapy.
- History of allergic reaction attributed to compounds of similar chemical or biological composition to the study drugs.
- Uncontrolled intercurrent illness that would limit compliance with study requirements suggested by medical history, physical examination, or standard clinical assessments such as imaging, EKG, and laboratory studies.
Tratamiento, grupos y participación
El registro puede describir tratamientos y duración sin incluir un calendario completo. Pide al equipo las visitas, procedimientos, riesgos, costos y alternativas. Mantén tu atención habitual salvo que tu médico te indique un cambio.
- Asignación
- No aplica
- Enmascaramiento
- Sin enmascaramiento
Arm 1
TriAdeno vaccine with N-803
Biological: TriAdeno vaccine · Drug: N-803
TriAdeno vaccine BIOLOGICAL
The TriAdeno vaccine will be administered on Day 1 of every 21-day cycle for up to 4 cycles.
N-803 DRUG
N-803 will be administered on Day 1 of every 21-day cycle for up to 4 cycles.
Qué evalúan los investigadores
Estas medidas indican qué se estudia. No prueban que un tratamiento funcione.
Medidas principales
To determine the effect of TriAdeno vaccine with N-803 on immune infiltration of the local tumor environment
Plazo: Baseline/prior to treatment, C2D14 (or as late as C4D21), and optionally at 1 year
Change in the density of T-cell immune infiltrates in the malignant portions of prostate using a paired two sample t-test
Medidas secundarias
To assess the adverse events associated with TriAdeno vaccine and N-803
Plazo: Day 1 of each cycle, and through at least 30 days after last treatment
Toxicities will be reported in a descriptive fashion per type, frequency, and grade
To determine the effect of the TriAdeno vaccines with N-803 on the change in PSA
Plazo: Day 1 of each cycle after C1, 30 days after last treatment, and in follow-up about every 3 months for 1 year and every 6 months for the subsequent 4 years after the end of study therapy
Change in PSA will be analyzed using a paired two sample t-test.
Revisa las tablas completas y sus limitaciones en el registro oficial.
Abrir resultados oficiales ↗Centros de investigación (1)
El estado general puede diferir del estado de un centro. Confirma la disponibilidad antes de trasladarte.
1 centros
National Institutes of Health Clinical CenterBethesda, Maryland, United StatesReclutando
Equipo y fechas
- Patrocinador principal
- National Cancer Institute (NCI)
- Inicio del estudio
- 15 nov 2026 Estimado
- Finalización primaria
- 15 jun 2028 Estimado
- Finalización del estudio
- 15 jun 2029 Estimado
- Primera publicación
- 8 may 2026 Real
- Última actualización
- 10 nov 2026 Real
Contactos oficiales del estudio
Título oficial del estudio
Phase II Trial of a Multitargeted Recombinant Ad5 PSA/MUC-1/Brachyury-based Immunotherapy (TriAdeno) Vaccine With IL-15 Superagonist N-803 in Participants With Clinically Localized Prostate Cancer Undergoing Active Surveillance
Consulta a Wellness Clinical Research
Tu mensaje va a WCR, incluso si otra organización realiza este estudio. WCR puede orientarte, pero podría no realizar este estudio, tener acceso a su equipo ni poder inscribirte.
Fuente: API v2 de ClinicalTrials.gov. Patrocinadores e investigadores envían la información. La NLM no aprueba la seguridad ni la ciencia de todos los estudios registrados. Aviso del registro.
Consultado: 11 nov 2026 · Última actualización del registro: 10 nov 2026