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Neoepitope-based Personalized Vaccine Approach in Patients With Newly Diagnosed Glioblastoma

15 de noviembre de 2017 actualizado por: Washington University School of Medicine

A Pilot Study to Assess the Safety, Feasibility, and Preliminary Efficacy of a Neoepitope-based Personalized Vaccine Approach in Patients With Newly Diagnosed Glioblastoma

The early clinical development paradigm for chemotherapeutic agents has significantly influenced the development of therapeutic cancer vaccines. However, there are major differences between these two classes of therapeutics that have important implications for early clinical development. Specifically, the phase 1 concept of dose escalation to find a maximum-tolerated dose does not apply to most therapeutic cancer vaccines. Most therapeutic cancer vaccines are associated with minimal toxicity at a range that is feasible to manufacture or administer, and there is little reason to believe that the maximum-tolerated dose is the most effective dose.

In a recent article from the biostatistics literature, Simon et al. write that "the initial clinical trial of many new vaccines will not be a toxicity or dose-ranging trial but rather will involve administration of a fixed dose of vaccine … in most cases the dose selected will be based on preclinical findings or practical considerations. Using several dose levels in the initial study to find the minimal active dose or to characterize the dose-activity relationship is generally not realistic".

Consistent with these recommendations, the general philosophy of the phase 1 clinical trial is to facilitate a prompt preliminary evaluation of the safety and immunogenicity of the personalized synthetic long peptide vaccine strategy. The proposed clinical trial will test a fixed dose of vaccine. There is considerable experience with the synthetic long peptide vaccine platform. The synthetic long peptide vaccine platform has an excellent safety profile, and the optimal dose appears to be based on practical considerations (solubility of the peptide). The dose to be tested in the proposed clinical trial is consistent with other similar cancer vaccine trials that have been recently completed or are currently ongoing. The sample size (n=10) will provide a reasonably reliable estimate of the safety and immunogenicity of the vaccine.

Descripción general del estudio

Tipo de estudio

Intervencionista

Inscripción (Actual)

1

Fase

  • 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.

Ubicaciones de estudio

    • Missouri
      • Saint Louis, Missouri, Estados Unidos, 63110
        • Washington University School of Medicine

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:

  • Newly diagnosed histologically confirmed glioblastoma multiforme (WHO grade IV). Patients with secondary glioblastoma, in particular those who are IDH1 or IDH2 mutant, will not be excluded.
  • Patients who had craniotomy with biopsy, subtotal resection, total gross resection, or re-resection will be permitted.
  • Consented to genome sequencing and dbGaP-based data sharing and has provided or will provide germline (PBMC) and tumor DNA/RNA samples of adequate quality for sequencing. (Acquisition of specimens for sequencing and the sequencing itself may be done under this study or as part of routine care or another research project.)
  • At least 18 years of age.
  • Karnofsky performance status ≥ 60%
  • Normal bone marrow and organ function as defined below:

    • Absolute neutrophil count ≥ 1,500/mcL
    • Platelets ≥ 100,000/mcL
    • Total bilirubin ≤ 1.5 x IULN
    • AST(SGOT)/ALT(SGPT) ≤ 3.0 x IULN
    • Creatinine ≤ IULN OR creatinine clearance ≥ 60 mL/min/1.73 m2 for patients with creatinine levels above institutional normal
  • Systemic corticosteroid therapy is permitted provided dosing is no greater than 4 mg per day (dexamethasone or equivalent) on the day of vaccine administration
  • Bevacizumab will be allowed if given for symptomatic control of vasogenic edema and to avoid high dose of corticosteroids
  • Women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately.
  • Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).

Exclusion Criteria:

  • As this is a safety and feasibility study, prior immunotherapy will be permitted. However, any prior immunotherapy must be discontinued at least 2 weeks before peptide vaccine administration. Non-immunologic therapy may be continued.
  • Inadequate tissue acquisition to allow for neoantigen screening
  • No candidate neoantigen identified during screening
  • A history of other malignancy ≤ 3 years previous with the exception of non-melanoma skin cancer, any in situ cancer that has been successfully resected and cured, treated superficial bladder cancer, or any early-stage solid tumor that was successfully resected without need for adjuvant radiation or chemotherapy.
  • Currently receiving any other investigational agents.
  • Known allergy, or history of serious adverse reaction to, vaccines such as anaphylaxis, hives, or respiratory difficulty.
  • A history of allergic reactions attributed to compounds of similar chemical or biologic composition to poly-ICLC or other agents used in the study.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
  • History of pre-existing immunodeficiency disorder including chronic infection (i.e. hepatitis B, hepatitis C, HIV), or autoimmune condition requiring immunosuppressive therapy. This includes inflammatory bowel disease, ulcerative colitis, Crohn's disease, systemic vasculitis, scleroderma, psoriasis, multiple sclerosis, hemolytic anemia, immune-mediated thrombocytopenia, rheumatoid arthritis, systemic lupus erythematosus, Sjogren's syndrome, sarcoidosis, or other rheumatologic disease or any other medical condition or use of medication which might make it difficult for the patient to complete the full course of treatments or to generate an immune response to vaccines.
  • Presence of clinically significant increased intracranial pressure (e.g. impending herniation) or hemorrhage, uncontrolled seizures, or requirement for immediate palliative treatment.
  • Pregnant and/or breastfeeding. Women of childbearing potential must have a negative pregnancy test within 7 days of first dose of vaccine.

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: N / A
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Arm 1: Peptide/poly-ICLC
  • For all patients, concurrent chemoradiation with temozolomide will be given per standard of care and is outside the scope of this study as per standard of care.
  • The long peptide + poly-ICLC will be given on Cycle 1 Day 1 of maintenance temozolomide.
  • If the vaccine is not ready by this time, the first vaccination will begin on Day 1 of the next cycle of maintenance temozolomide.
  • The peptide + poly-ICLC vaccine will be given again on Days 8, 15, and 22 of the first cycle, as a priming strategy.
  • On all subsequent cycles, the peptide vaccine + poly-ICLC will be given on Day 22 (+/-3 days).
Otros nombres:
  • Temodar®
Otros nombres:
  • Hiltonol

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Periodo de tiempo
Safety and tolerability of adjuvant personalized neoantigen peptide vaccine with poly-ICLC as measured by grade 3 and 4 adverse events as defined by CTCAE v. 4.03
Periodo de tiempo: 30 days after completion of treatment (approximately 7 months)
30 days after completion of treatment (approximately 7 months)
Feasibility of the peptide vaccine with poly-ICLC as measured by the ability to identify patient tumor-derived candidate neoantigens and generate a tumor-specific vaccine from time of initial diagnosis to time of proposed administration of the vaccine
Periodo de tiempo: Approximately 12-14 weeks
Approximately 12-14 weeks

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Progression-free survival (PFS) rate
Periodo de tiempo: Up to 24 months after last dose of vaccine
  • PFS: duration of time from start of treatment to time of progression or death, whichever occurs first.
  • Progression will be evaluated using the updated response assessment criteria for high-grade gliomas: Response Assessment in Neuro-Oncology (RANO) working group guideline
Up to 24 months after last dose of vaccine
Overall survival (OS) rate
Periodo de tiempo: Up to 24 months after last dose of vaccine
OS: duration of time from start of treatment to time of death from any cause
Up to 24 months after last dose of vaccine
Number of neoantigens present in patients with newly diagnosed GBM
Periodo de tiempo: After completion of treatment (approximately 6 months)
After completion of treatment (approximately 6 months)

Colaboradores e Investigadores

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

Investigadores

  • Investigador principal: Gavin Dunn, M.D., Ph.D., Washington University School of Medicine

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)

3 de diciembre de 2015

Finalización primaria (Actual)

14 de febrero de 2017

Finalización del estudio (Actual)

14 de febrero de 2017

Fechas de registro del estudio

Enviado por primera vez

27 de julio de 2015

Primero enviado que cumplió con los criterios de control de calidad

27 de julio de 2015

Publicado por primera vez (Estimar)

29 de julio de 2015

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

17 de noviembre de 2017

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

15 de noviembre de 2017

Última verificación

1 de noviembre de 2017

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

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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