A Pilot Study to Evaluate the Safety and Feasibility of Neoantigen-Targeted Dendritic Cell Vaccination in Diffuse Hemispheric Glioma, H3 G34-Mutant
概览
- 阶段
- 1 期
- 干预措施
- Biospecimen Collection
- 疾病 / 适应症
- Diffuse Hemispheric Glioma, H3 G34-Mutant
- 发起方
- Jonsson Comprehensive Cancer Center
- 入组人数
- 6
- 试验地点
- 1
- 主要终点
- Incidence of regimen-limiting toxicities
- 状态
- 进行中（未招募）
- 最后更新
- 2个月前
概览
简要总结
This phase I trial tests the safety and side effects, and best dose of a vaccine (neoantigen-target ppDC) in treating patients with H3 G34-mutant diffuse hemispheric glioma. Vaccines made from the patient's own white blood cells and peptide-pulsed dendritic cells may help the body build an effective immune response to kill tumor cells. Giving neoantigen-targeted ppDC may be safe, tolerable and/or effective in treating patients with diffuse hemispheric glioma with a H3 G34 mutation.
详细描述
PRIMARY OBJECTIVE: I. To evaluate the safety and feasibility of neoantigen-targeted ppDC in adult patients with diffuse hemispheric glioma (DHG). SECONDARY OBJECTIVES: I. To evaluate the immunogenicity of neoantigen-targeted ppDC in adult patients with DHG. II. To determine whether neoantigen-targeted ppDC facilitates systemic T cell-mediated adaptive immune activation in DHG patients. III. To determine whether neoantigen-targeted ppDC facilitates a target-specific anti-tumor T cell expansion in DHG patients. IV. To determine whether pro-inflammatory phenotypic changes in systemic immune cell populations are detected in peripheral blood in response to neoantigen-targeted ppDC vaccination in DHG patients. EXPLORATORY OBJECTIVES: I. To estimate the potential efficacy of neoantigen-targeted ppDC in DHG patients. II. To correlate physiologic and metabolic magnetic resonance imaging (MRI) with systemic immunologic response after neoantigen-targeted ppDC in DHG patients. III. To isolate and sequence immunodominant anti-tumor T cell T-cell receptor (TCRs) stimulated by neoantigen-targeted ppDC in DHG patients. IV. To explore whether study participants demonstrating immune-reactive responses to neoantigen-targeted ppDC harbor significantly different gastrointestinal microbiota profiles in comparison to unresponsive participants. OUTLINE: Patients undergo leukapheresis 10 days prior to first injection. Patients then receive ppDC intradermally (ID) with poly ICLC intramuscularly (IM) in both arms every 2 weeks (Q2W) for total 3 doses and then every 6 months for up to 3 doses. Patients undergo magnetic resonance imaging (MRI) throughout the trial. Patients also undergo blood sample collection throughout the trial in addition to stool sample collection during screening and on the trial. After completion of study treatment, patients are followed up at 30 and 120 days and then up to 24 months.
研究者
入排标准
入选标准
- •Participants between the ages of 18 and 50 years with pathologically-confirmed diagnosis of (or pathology re-review consistent with) DHG will be enrolled in this study
- •A female participant who has childbearing potential must have negative urine or serum pregnancy test 72 hours prior to the first dose and be willing to use adequate method of contraception for course of study and 120 days after last dose
- •The participant (or legally acceptable representative if applicable) provides informed consent (and written assent from minors) for the trial
- •An interval of the following durations prior to enrollment:
- •At least 28 days from prior surgical resection
- •At least 14 days from prior stereotactic biopsy
- •Have clinical pathology results, commercial targeted exome sequencing results, or sufficient archival tumor tissue to confirm DHG following registration. The following amount of tissue is preferred: 25-50 mg flash frozen tissue block. Formalin-fixed, paraffin embedded (FFPE) tissue block or 10 FFPE unstained slides (5µm thick) is acceptable at the discretion of the Sponsor-Investigator
- •Have a Karnofsky performance status (KPS) ≥ 70
- •Absolute neutrophil count (ANC) ≥ 1500/uL (specimens must be collected within 14 days prior to the start of study treatment)
- •Platelets ≥ 100 000/µL (specimens must be collected within 14 days prior to the start of study treatment)
排除标准
- •Age \> 50 years or \< 18 years
- •Have had more than 1 separately-treated recurrences of the index tumor
- •A woman of child-bearing potential who has a positive urine pregnancy test within 72 hours prior to enrollment. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
- •Has received prior systemic anti-cancer therapy including investigational agents within 2 weeks prior to enrollment. Note: Participants must have recovered from all adverse events (AEs) due to previous therapies to ≤ grade 1 or baseline. Participants with ≤ grade 2 neuropathy may be eligible
- •Has received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (eg, FluMist®) are live attenuated vaccines and are not allowed
- •Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study treatment. Note: Participants who have entered the follow-up phase of an investigational study may participate as long as it has been 4 weeks after the last dose of the previous investigational agent
- •Has a diagnosis of immunodeficiency or is receiving chronic systemic corticosteroid therapy (dosing exceeding 1 mg/kg/day of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug
- •Has a known additional malignancy that is progressing or has required active treatment within the past 3 years. Note: Participants with basal cell carcinoma of the skin squamous cell carcinoma of the skin, or carcinoma in situ (e.g. breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy are not excluded
- •Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
- •Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis
研究组 & 干预措施
Treatment (PpDC vaccine, Poly ICLC)
Patients undergo leukapheresis 10 days prior to first injection. Patients then receive ppDC ID with poly ICLC IM in both arms Q2W for total 3 doses and then every 6 months for up to 3 doses. Patients undergo MRI throughout the trial. Patients also undergo blood sample collection throughout the trial in addition to stool sample collection during screening and on the trial.
干预措施: Biospecimen Collection
Treatment (PpDC vaccine, Poly ICLC)
Patients undergo leukapheresis 10 days prior to first injection. Patients then receive ppDC ID with poly ICLC IM in both arms Q2W for total 3 doses and then every 6 months for up to 3 doses. Patients undergo MRI throughout the trial. Patients also undergo blood sample collection throughout the trial in addition to stool sample collection during screening and on the trial.
干预措施: Dendritic Cell Therapy
Treatment (PpDC vaccine, Poly ICLC)
Patients undergo leukapheresis 10 days prior to first injection. Patients then receive ppDC ID with poly ICLC IM in both arms Q2W for total 3 doses and then every 6 months for up to 3 doses. Patients undergo MRI throughout the trial. Patients also undergo blood sample collection throughout the trial in addition to stool sample collection during screening and on the trial.
干预措施: Leukapheresis
Treatment (PpDC vaccine, Poly ICLC)
Patients undergo leukapheresis 10 days prior to first injection. Patients then receive ppDC ID with poly ICLC IM in both arms Q2W for total 3 doses and then every 6 months for up to 3 doses. Patients undergo MRI throughout the trial. Patients also undergo blood sample collection throughout the trial in addition to stool sample collection during screening and on the trial.
干预措施: Magnetic Resonance Imaging
Treatment (PpDC vaccine, Poly ICLC)
Patients undergo leukapheresis 10 days prior to first injection. Patients then receive ppDC ID with poly ICLC IM in both arms Q2W for total 3 doses and then every 6 months for up to 3 doses. Patients undergo MRI throughout the trial. Patients also undergo blood sample collection throughout the trial in addition to stool sample collection during screening and on the trial.
干预措施: Poly ICLC
结局指标
主要结局
Incidence of regimen-limiting toxicities
时间窗: Up to 120 days after last dose
Will be graded in severity according to Common Terminology Criteria for Adverse Events version 5.0 (CTCAE, v 5.0) guidelines, monitoring for 30 days following each dose for adverse event recording, and for 120 days following each dose for serious adverse event recording.
次要结局
- Targets of clonal cytotoxic T cell expansion(Up to 4 years)
- Pro-inflammatory phenotypic changes in immune cell populations(Up to 4 years)
- Changes of immune cell markers profile in T cell and myeloid-derived cell populations(Up to 4 years)
- Significant clonal T cell expansion(Up to 4 years)
- Significant increase in gamma-interferon (IFN) gene expression signature(Up to 4 years)
- Changes in immune cell subset expansion and contraction in T cell and myeloid-derived cell populations(Up to 4 years)