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Nivolumab

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Ipilimumab

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Immune Checkpoint Inhibitors

PART I: Patients undergo collection of tissue samples for TMB level. Patients with elevated TMB may be eligible for Part II.

PART II: Patients receive nivolumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for up to 26 cycles in the absence of disease progression or unacceptable toxicity.

PART I: Patients undergo collection of tissue samples for TMB level. Patients with elevated TMB may be eligible for Part II.

PART II: Patients receive nivolumab IV over 30 minutes and ipilimumab IV over 30-90 minutes on day 1. Treatment repeats every 21 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients then receive nivolumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for up to 23 cycles in the absence of disease progression or unacceptable toxicity.

Biospecimen Collection

Daniel A Morgenstern

This phase Ib trial investigates the side effects of the combination of nivolumab and ipilimumab, and to see how well they work in treating patients with cancers that have come back (relapsed) or does not respond to treatment (refractory) and have an increased number of genetic changes. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Tumor mutational burden (TMB) is the total amount of genetic changes or "mutations" found in tumor cells. Some studies in adults with cancer have shown that patients with a higher TMB (an increased number of genetic changes) are more likely to respond to immunotherapy drugs. There is also evidence that nivolumab and ipilimumab can shrink or stabilize cancer in adult patients with cancer. This study is being done to help doctors learn if the combination of nivolumab and ipilimumab can help children, adolescents, and young adults patients live longer.

PRIMARY OBJECTIVE:

I. To confirm the safety and tolerability of nivolumab-based combination therapy in children, adolescent and young adult (CAYA) patients with relapsed/refractory hypermutant cancers (including solid tumors, central nervous system \[CNS\] tumors, neuroblastoma, and lymphoma).

Ia. To determine the tolerability, define and describe the toxicities, and determine the recommended phase 2 dose (RP2D) of nivolumab and ipilimumab combination therapy in CAYA patients with relapsed/refractory hypermutant cancers.

SECONDARY OBJECTIVE:

I. To assess objective overall response rate (ORR) to the nivolumab-based combination therapy in CAYA patients with relapsed/refractory hypermutant cancers within the confines of a Phase 1b study.

EXPLORATORY OBJECTIVES:

I. To assess clinical benefit rate (CBR) (objective response and stable disease for at least two \[2\] protocol reassessments), progression-free survival (PFS), and overall survival (OS) following nivolumab-based combination therapy in CAYA patients with relapsed/refractory hypermutant cancers.

II. To explore correlations between tumor genotype (including tumor mutation burden \[TMB\], specific gene mutations, etc.) and response to nivolumab-based combination therapy in CAYA patients with relapsed/refractory hypermutant cancers.

III. To discover biomarkers predicting response of hypermutant CAYA cancers undergoing PD-1 blockade including tumor neoantigen formation, specific T-cell receptor rearrangements (TCRR) of tumor infiltrating lymphocytes (TILs), and detailed characterization and activation of the immune infiltrations including the TILs.

IV. To explore the use of minimally invasive methods to monitor and predict response to immune checkpoint inhibition in hypermutant cancers including assessment of circulating tumor deoxyribonucleic acid (DNA) and circulating T-cells immunophenotypic profiling (differentiation markers, cytokines, etc.).

OUTLINE:

PART I: Patients undergo collection of tissue samples for TMB level. Patients with elevated TMB may be eligible for Part II.

PART II: Patients are assigned to 1 of 2 dose levels.

DOSE LEVEL 1: Patients receive nivolumab intravenously (IV) over 30-90 minutes and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients then receive nivolumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for up to 23 cycles in the absence of disease progression or unacceptable toxicity.

DOSE LEVEL -1: Patients receive nivolumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for up to 26 cycles in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days and then every 12 weeks for 1 year.

Testing the Combination of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) in Children, Adolescent, and Young Adult Patients With Relapsed/Refractory Cancers That Have an Increased Number of Genetic Changes, The 3CI Study

3CI Study: Childhood Cancer Combination Immunotherapy. Phase Ib and Expansion Study of Nivolumab Combination Immunotherapy in Children, Adolescent and Young Adult (CAYA) Patients With Relapsed/Refractory Hypermutant Cancers

NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.

Graded by the revised National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0.

The portion of patients achieving complete response (iCR/CR) or partial response (iPR/PR). Response duration is measured from the time of initial response until documented disease progression.

The sum of the objective response (OR) and stable disease (iSD/SD) for at least two protocol reassessments periods.

National Cancer Institute (NCI)

Glioma

Brain Neoplasms

Medulloblastoma

Diffuse Intrinsic Pontine Glioma

Ependymoma

Brain Diseases

Central Nervous System Diseases

Brain Stem Neoplasms

Infratentorial Neoplasms

Pembrolizumab

Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 21 days for 34 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo standard MRI, DCE permeability MRI, DTI, DSC perfusion MRI, MR diffusion imaging and may undergo MR spectroscopy as well as CSF and blood sample collection during screening and on study.

Conventional Magnetic Resonance Imaging

Diffusion Tensor Imaging

Diffusion Weighted Imaging

Dynamic Contrast-enhanced MR Perfusion

Dynamic Susceptibility Contrast-Perfusion-Weighted Imaging

Magnetic Resonance Spectroscopic Imaging

Site Public Contact

Nathan J. Robison

Sonia Partap

Kathleen M. Dorris

Jason R. Fangusaro

Ira J. Dunkel

Natasha Pillay Smiley

James T. Felker

Patricia A. Baxter

Vijay Ramaswamy

Eugene I Hwang

This phase I trial studies the side effects and best dose of pembrolizumab and to see how well it works in treating younger patients with high-grade gliomas (brain tumors that are generally expected to be fast growing and aggressive), diffuse intrinsic pontine gliomas (brain stem tumors), brain tumors with a high number of genetic mutations, ependymoma or medulloblastoma that have come back (recurrent), progressed, or have not responded to previous treatment (refractory). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may induce changes in the body's immune system, and may interfere with the ability of tumor cells to grow and spread.

PRIMARY OBJECTIVES:

I. To establish the safety and describe adverse effects associated with administration of the adult recommended dose of pembrolizumab (MK-3475) in each stratum separately.

II. To estimate the sustained objective response rate, (complete response \[CR\] + partial response \[PR\], sustained for at least 9 weeks) associated with pembrolizumab (MK-3475) treatment for pediatric patients with recurrent, progressive or refractory diffuse intrinsic pontine glioma (DIPG), non-brainstem high grade glioma (NB-HGG), ependymoma or medulloblastoma.

III. To establish the safety and describe adverse effects associated with administration of the adult recommended dose of pembrolizumab (MK-3475) in pediatric patients with progressive or recurrent hypermutated tumors, including those with constitutional mismatch-repair deficiency (CMMRD) syndrome.

IV. To estimate the sustained response rate of pediatric patients with progressive or recurrent hypermutated NB-HGG, including those with CMMRD syndrome, treated with pembrolizumab (MK-3475).

V. To determine changes in the immunophenotypic profile of PD-1hi CD8+ T cells from serial peripheral blood samples obtained before and during treatment with pembrolizumab (MK-3475) in pediatric patients with hypermutated brain tumors, including those with CMMRD syndrome.

SECONDARY OBJECTIVES:

I. To assess the relationship between outcome (response and progression-free survival) and potential biomarkers, including PD-L1 expression, patient immunophenotype, ribonucleic acid (RNA) signature profile, mutational profile, tumor gene expression and circulating tumor deoxyribonucleic acid (DNA) (ctDNA).

II. To estimate the duration of objective response in patients with measurable disease at baseline and estimate progression-free/event-free/overall survival for patients in each stratum treated with pembrolizumab (MK-3475).

III. To evaluate PD-L1 expression on archival tissue obtained from pediatric patients with eligible primary central nervous system (CNS) tumors.

IV. To examine the ability of quantitative magnetic resonance (MR) spectroscopy and diffusion/weighted imaging/apparent diffusion coefficient (ADC) mapping to provide early assessment of tumor behavior and specifically distinguish pseudoprogression/tumor inflammation from tumor progression.

V. To explore the use of serial MR permeability (dynamic contrast-enhanced \[DCE\]) and MR perfusion (dynamic susceptibility contrast \[DSC\]) to determine if elevated relative cerebral blood volume (rCBV) and transfer coefficient (ktrans) can distinguish pseudoprogression/tumor inflammation from tumor progression in tumors treated on this protocol.

VI. To characterize biomarkers, patient immunophenotyping, mutational load (as determined by whole exome sequencing), the tumor gene expression profile and ctDNA in patients receiving pembrolizumab (MK-3475).

VII. To estimate the duration of objective response, progression-free survival/event free survival and document overall survival of pediatric patients with progressive or recurrent hypermutated NB-HGG, including those with CMMRD syndrome, treated with pembrolizumab (MK-3475).

VIII. To estimate the progression-free survival (PFS) of all patients enrolled on stratum C and sustained objective response rate of pediatric patients with hypermutated progressive low grade gliomas including those with CMMRD, treated with pembrolizumab (MK-3475).

IX. To categorize the T-cell receptor repertoire in PD-1+ cells obtained from peripheral blood or from tumor tissue, when available, before and after treatment with pembrolizumab (MK-3475) in pediatric patients treated in stratum C (hypermutated brain tumors).

X. To define the specificity of T-cell receptors against tumor antigens identified in objective IX.

XI. To characterize functional features of T-cell populations after pembrolizumab (MK-3475) treatment and relate these findings to epigenetic programs within these cells.

OUTLINE:

Patients receive pembrolizumab intravenously (IV) over 30 minutes on day 1. Treatment repeats every 21 days for 34 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo standard magnetic resonance imaging (MRI), dynamic contrast-enhanced magnetic resonance (MR) perfusion (DCE permeability) MRI, diffusion tensor imaging (DTI), dynamic susceptibility contrast-perfusion-weighted imaging (DSC perfusion) MRI, diffusion weighted imaging (MR diffusion imaging) and may undergo MR spectroscopy as well as cerebrospinal fluid (CSF) and blood sample collection during screening and on study.

After completion of study treatment, patients are followed up at 30 days, every 3 months for 1 year, then every 6 months for up to 3 years.

Pembrolizumab in Treating Younger Patients With Recurrent, Progressive, or Refractory High-Grade Gliomas, Diffuse Intrinsic Pontine Gliomas, Hypermutated Brain Tumors, Ependymoma or Medulloblastoma

A Safety and Preliminary Efficacy Trial of Pembrolizumab (MK-3475) in Children With Recurrent, Progressive or Refractory Diffuse Intrinsic Pontine Glioma (DIPG), Non-Brainstem High-Grade Gliomas (NB-HGG), Ependymoma, Medulloblastoma or Hypermutated Brain Tumors

Will be graded according to National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. All adverse events observed during the dose finding period as well as during later courses will be summarized by stratum and by dose (if applicable). Separate tables for adverse events attributable to pembrolizumab will also be provided for each of the three strata.

Stratum specific exact confidence interval estimates will be provided for the sustained objective response rates. In addition, if adequate number of responses is observed to make such analyses meaningful, stratum-specific confirmed sustained objective response rates observed during treatment will be estimated by cumulative incidence functions.

A 1-sample t-distribution-based confidence interval (or its non-parametric counterparts, as needed) will be used to estimate the average change in the percentage of CD8+ T cells that are PD-1+ due to treatment with pembrolizumab.

Log-ranks tests or Cox regression models will be used to explore associations between biomarkers and PFS and OS.

Kaplan-Meier estimates of event free survival distribution for all evaluable patients within each stratum will be provided.

Kaplan-Meier estimates of OS distribution for all evaluable patients within each stratum will be provided. Log-ranks tests or Cox regression models will be used to explore associations between biomarkers and progression free survival (PFS) and OS.

Will report any objective radiological responses observed in subjects who were not part of the primary cohort of progressive/recurrent high-grade gliomas (HGGs).

The biomarker data generated as part of this study will be summarized via descriptive statistics and plots. The association between response and potential biomarkers will be evaluated by Fisher's exact or Chi-square test for categorical outcomes and two sample t-tests (or appropriate non-parametric counterparts) for continuous outcomes. Log-ranks tests or Cox regression models will also be used to explore associations between biomarkers and PFS and OS. These analyses will be done in a stratum specific fashion.

Observed values of the proposed quantitative imaging parameters as well as changes in these parameters across time will be described and summarized via descriptive statistics and plots. Mixed effects models will be used to explore differences in estimated slope parameters of the quantitative imaging. Pairwise changes in these imaging parameters across various time points will also be described. T-tests (or their non-parametric equivalent) will be used to compare differences in pairwise changes between patients with progression vs. pseudoprogression/tumor inflammation.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Testing the Combination of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) in Children, Adolescent, and Young Adult Patients With Relapsed/Refractory Cancers That Have an Increased Number of Genetic Changes, The 3CI Study	NCT04500548	Constitutional ... Hematopoietic a... Lynch Syndrome Recurrent Lymph... Recurrent Malig... Recurrent Neuro... Recurrent Prima... Refractory Lymp... Refractory Mali... Refractory Neur... Refractory Prim... Xeroderma Pigme...	Biospecimen Col... Ipilimumab Nivolumab	12 Months - 25 Years	National Cancer Institute (NCI)
Pembrolizumab in Treating Younger Patients With Recurrent, Progressive, or Refractory High-Grade Gliomas, Diffuse Intrinsic Pontine Gliomas, Hypermutated Brain Tumors, Ependymoma or Medulloblastoma	NCT02359565	Constitutional ... Lynch Syndrome Malignant Gliom... Recurrent Brain... Recurrent Child... Recurrent Diffu... Recurrent Medul... Refractory Brai... Refractory Diff... Refractory Epen... Refractory Medu...	Biospecimen Col... Conventional Ma... Diffusion Tenso... Diffusion Weigh... Dynamic Contras... Dynamic Suscept... Magnetic Resona... Pembrolizumab	1 Year - 30 Years	National Cancer Institute (NCI)

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