跳至主要内容
临床试验/NCT07468136
NCT07468136招募中1 期

Phase I/IIa Trial of Retifanlimab and Difluoromethylornithine (DFMO) in Patients With Progressive High-Grade Glioma

Mayo Clinic1 个研究点 分布在 1 个国家目标入组 33 人开始时间: 2026年6月23日最近更新:
干预措施

试验速览

阶段
1 期
状态
招募中
发起方
Mayo Clinic
入组人数
33
试验地点
1
主要终点
Best tolerable dose level of Difluoromethylornithine (DFMO, or eflornithine) (phase I)

研究概览

简要总结

This phase I/II trial tests the safety, side effects best dose and effect of retifanlimab with or without difluoromethylornithine (DFMO) for the treatment of high grade gliomas that are growing, spreading, or getting worse (progressive). Immunotherapy with monoclonal antibodies, such as retifanlimab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. DFMO is in a class of medications called ornithine decarboxylase (ODC) inhibitors. It works by blocking the action of a substance that signals tumor cells to multiply. This helps stop or slow the spread of tumor cells. Giving retifanlimab with or without DFMO mat be safe, tolerable and/or effective in treating patients with progressive high grade glioma.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Sequential
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Age ≥ 18 years
  • Diagnosis of high-grade glioma, including any of the following:
  • Glioblastoma, IDH-wild type (WT)
  • Grade 3 or 4 IDH1/2 mutant astrocytoma or
  • Grade 3 oligodendroglioma
  • Any prior grade 2 astrocytoma or oligodendroglioma that is suspected to have recurred at a higher grade
  • Other high-grade glioma
  • Plan for surgical resection as part of routine clinical care
  • Radiographic disease progression, with or without tissue confirmation
  • Measurable disease
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0, 1 or 2 and Karnofsky Performance Status (KPS) ≥ 60
  • NOTE: PS must be assessed (again) within 7 days prior to first dose of study drug
  • Hemoglobin ≥ 9.0 g/dL (obtained ≤ 15 days prior to registration)
  • Absolute neutrophil count (ANC) ≥ 1500/mm^3 (obtained ≤ 15 days prior to registration)
  • Platelet count ≥ 100,000/mm^3 (obtained ≤ 15 days prior to registration)
  • Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (obtained ≤ 15 days prior to registration)
  • Alanine aminotransferase (ALT) and aspartate transaminase (AST) ≤ 3 x ULN (≤ 5 x ULN for patients with liver involvement) (obtained ≤ 15 days prior to registration)
  • Calculated creatinine clearance ≥ 45 ml/min using the Cockcroft-Gault formula (obtained ≤ 15 days prior to registration)
  • Negative pregnancy test done ≤ 7 days prior to registration, for persons of childbearing potential only
  • Provide written informed consent for the current study
  • Willing to provide consent for the Neuro-oncology biorepository (IRB 12-003458) for archiving of tissue, cerebrospinal fluid (CSF), and/or blood samples
  • Ability to complete forms by themselves or with assistance
  • Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study)

排除标准

  • 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 or able to father a child who are unwilling to employ adequate contraception
  • Uncontrolled intercurrent illness that by the judgement 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 regimens including, but not limited to:
  • ongoing or active infection (e.g., pneumonia, sepsis, etc.) requiring systemic therapy
  • current diagnosis or previous history of immune-related (non-infectious) pneumonitis or interstitial lung disease that requires or required steroids
  • active autoimmune disease that required systemic treatment other than replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroids) ≤ 2 years prior to registration
  • symptomatic congestive heart failure
  • unstable angina pectoris
  • psychiatric illness/social situations that would limit compliance with study requirements (e.g., drug addiction)
  • concurrent active Hepatitis B (defined as hepatitis B surface antigen [HBsAg] positive and/or detectable hepatitis B virus [HBV] deoxyribonucleic acid [DNA]) and Hepatitis C virus (defined as anti-hepatitis C virus [HCV] antibody [Ab] positive and detectable HCV ribonucleic acid [RNA]) infection
  • EXCEPTIONS:
  • Patients with evidence of hepatitis B virus (HBV) infection (HBsAg positive) must have completed at least 4 weeks of HBV antiviral therapy, and the HBV viral load must be undetectable at the time of registration
  • Patients with a history of hepatitis C virus (HCV) are eligible if they have an undetectable HCV viral load. Patients must have completed curative anti-viral treatment ≥ 4 weeks prior to registration.
  • NOTE: Patients without symptoms or prior history do not require testing prior to registration
  • Co-morbid systemic illnesses or other severe concurrent disease that would make the patient inappropriate for entry into the study or interfere with proper assessment of safety and toxicity
  • History of myocardial infarction ≤ 6 months prior to registration or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
  • Active autoimmune disease that has required systemic treatment (other than replacement therapy) ≤ 1 year prior to registration
  • History of allogeneic stem cell transplant
  • Receiving any other investigational agent with therapeutic intent
  • Participants who are unable to swallow the DFMO solution or who are at risk for impaired absorption of oral medication.
  • NOTE: This restriction includes, but is not limited to, refractory vomiting, gastric resection/bypass, and duodenal/jejunal resection
  • Patients with known hypersensitivity or allergy to DFMO or retifanlimab
  • Contraindication to MRI or administration of gadolinium

研究组 & 干预措施

Group A (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo CSF fluid collection with or without lumbar puncture.

干预措施: Biospecimen Collection (Procedure)

Group A (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo CSF fluid collection with or without lumbar puncture.

干预措施: Lumbar Puncture (Procedure)

Group A (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo CSF fluid collection with or without lumbar puncture.

干预措施: Retifanlimab (Biological)

Group B1 (retifanlimab only then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes, on day 1 of cycle 1. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Eflornithine (Drug)

Group B1 (retifanlimab only then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes, on day 1 of cycle 1. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Tumor Resection (Procedure)

Group B2 (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1, in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Magnetic Resonance Imaging (Procedure)

Group A (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo CSF fluid collection with or without lumbar puncture.

干预措施: Magnetic Resonance Imaging (Procedure)

Group A (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo CSF fluid collection with or without lumbar puncture.

干预措施: Tumor Resection (Procedure)

Group B1 (retifanlimab only then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes, on day 1 of cycle 1. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Biospecimen Collection (Procedure)

Group B1 (retifanlimab only then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes, on day 1 of cycle 1. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Lumbar Puncture (Procedure)

Group B1 (retifanlimab only then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes, on day 1 of cycle 1. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Magnetic Resonance Imaging (Procedure)

Group B2 (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1, in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Biospecimen Collection (Procedure)

Group B2 (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1, in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Lumbar Puncture (Procedure)

Group B2 (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1, in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Tumor Resection (Procedure)

Group B2 (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1, in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Eflornithine (Drug)

Group B2 (retifanlimab and DFMO then surgery)

Experimental

Patients receive retifanlimab IV, over 30 minutes on day 1 of cycle 1 and DFMO PO Q8H on days 1-14 of cycle 1, in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care resection surgery. Patients then receive retifanlimab IV, over 30 minutes, on day 1 of each cycle and DFMO PO Q8H on days 1-14 of each cycle. Cycles repeat every 28 days for 16 additional cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study and may optionally undergo cerebrospinal fluid collection with or without lumbar puncture.

干预措施: Retifanlimab (Biological)

结局指标

主要结局

Best tolerable dose level of Difluoromethylornithine (DFMO, or eflornithine) (phase I)

时间窗: Up to 5 years

Will use a modified Bayesian Optimal Interval phase I/II (BOIN12) trial design to identify a dose level that is tolerable and has sufficient/optimal pharmacodynamic effects \[e.g., maximum tolerated dose (MTD)\]. Will evaluate toxicity up front to determine dose levels that have acceptable tolerability. Both dose limiting toxicity and pharmacodynamic activity will be used to identify the best dose to bring forward for the phase IIa portion.

Change in T cell/myeloid cell ratio (phase IIa)

时间窗: From baseline up to 5 years

Will use a log2 transformation of this percentage measure. Will summarize this within each of the treatment arms, and will compare these measures between arms using a two-sample t-test or a nonparametric Wilcoxon rank sum test if not sufficiently normally distributed.

次要结局

  • T cell/myeloid cell ratio(From baseline up to 5 years)
  • Myeloid cell abundance(Up to 5 years)
  • Extracellular cytokines/ chemokines(Up to 5 years)
  • Incidence of adverse events (AE)(Up to 5 years)
  • Progression free survival (PFS)(Up to 5 years)

研究者

发起方
Mayo Clinic
申办方类型
Other
责任方
Sponsor

研究点 (1)

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