Overview

Personalized Neoantigen Peptide-Based Vaccine in Combination With Pembrolizumab for the Treatment of Advanced Solid Tumors, The PNeoVCA Study

Status:
Not yet recruiting
Trial end date:
2025-02-24
Target enrollment:
0
Participant gender:
All
Summary
This phase I trial tests the safety and tolerability of an experimental personalized vaccine when given by itself and with pembrolizumab in treating patients with solid tumor cancers that have spread to other places in the body (advanced). The experimental vaccine is designed target certain proteins (neoantigens) on individuals' tumor cells. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving the personalized neoantigen peptide-based vaccine with pembrolizumab may be safe and effective in treating patients with advanced solid tumors.
Phase:
Phase 1
Accepts Healthy Volunteers?
No
Details
Lead Sponsor:
Mayo Clinic
Collaborator:
National Cancer Institute (NCI)
Treatments:
Cyclophosphamide
Pembrolizumab
Sargramostim
Criteria
Inclusion Criteria:

- PRE-REGISTRATION COHORT 1 ONLY: Histologically confirmed unresectable locally advanced
or metastatic solid malignancies

- PRE-REGISTRATION COHORT 1 ONLY: Has cancer progression after at least one line of
standard of care systemic treatment

- PRE-REGISTRATION COHORT 2 ONLY: Histologically confirmed unresectable locally advanced
or metastatic solid malignancies that pembrolizumab is Food and Drug Administration
(FDA) approved indication including melanoma, non-small cell lung cancer (NSCLC), head
and neck squamous cell cancer (HSNCC), urothelial carcinoma, any microsatellite
instability (MSI)-high tumor, gastric or gastroesophageal junction (GEJ)
adenocarcinoma, cervical cancer, hepatocellular carcinoma (HCC), merkel cell carcinoma
(MCC), renal cell carcinoma (RCC), endometrial carcinoma, tumor mutational burden-high
(TMB-H) cancer, cutaneous squamous cell carcinoma (cSCC), and triple-negative breast
cancer (TNBC).

- PRE-REGISTRATION COHORT 2 ONLY: Currently on pembrolizumab with or without
chemotherapy and imaging obtained within 28 days before pre-registration shows no
evidence of cancer progression by RECIST (version 1.1) criteria

- PRE-REGISTRATION: Age >= 18 years

- PRE-REGISTRATION: Willing to provide mandatory tissue specimens for correlative
research

- NOTE: This includes mandatory fresh tissue specimen at pre-registration for
complete exome and transcriptome sequencing unless patient had sequencing under
Mayo Institutional Review Board (IRB) protocol #13-000942, #14-004094, or
#21-007742 and has been identified for potential production of REAL Neo vaccine

- PRE-REGISTRATION: Soft tissue lesion amenable for adequate tissue sampling

- NOTE: It should not be tumor which was radiated in the past

- PRE-REGISTRATION: Measurable disease as defined by RECIST (version 1.1) criteria

- NOTE: Tumor lesions in a previously irradiated area are not considered measurable
disease

- PRE-REGISTRATION: Patients with actionable genomic abnormality including, but not
limited to EGFR, ALK, MET, ROS-1, RET, NTRK, KRAS or BRAF must have also received and
progressed on at least one line of prior FDA-approved targeted therapy

- PRE-REGISTRATION: Provide written informed consent

- PRE-REGISTRATION: Willing to return to enrolling institution for follow-up (during the
Active Monitoring Phase of the study)

- PRE-REGISTRATION: Willing to provide mandatory blood specimens for correlative
research

- PRE-REGISTRATION: Negative pregnancy test done =< 7 days prior to pre-registration for
persons of childbearing potential only

- NOTE: If the urine test is positive or cannot be confirmed as negative, a serum
pregnancy test will be required.

- PRE-REGISTRATION: Willing to employ a highly effective method of contraception from
the time of pre-registration through 6 months after the final vaccine cycle

- PRE-REGISTRATION: Willing to receive a tetanus vaccination if subject has not had one
=< 1 year prior to pre-registration

- PRE-REGISTRATION: Eastern Cooperative Oncology Group (ECOG) of 0 or 1

- PRE-REGISTRATION: Anticipated life expectancy of > 6 months

- PRE-REGISTRATION: Recovered from all toxicities associated with prior treatment to
acceptable baseline status (for laboratory toxicity see below limits for inclusion) or
National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE),
version 5.0, Grade of 0 or 1, except for toxicities not considered a safety risk per
treating investigator (e.g., alopecia or vitiligo).

- PRE-REGISTRATION: Hemoglobin >= 9.0 g/dL (obtained =< 28 days prior to
pre-registration) (Must be >= 7 days after most recent transfusion)

- PRE-REGISTRATION: Absolute neutrophil count (ANC) >= 1500/mm^3 or >= 1.5 X 10^9/L
(obtained =< 28 days prior to pre-registration)

- PRE-REGISTRATION: Platelet count >= 100,000/mm^3 or >= 100 X 10^9/L (obtained =< 28
days prior to pre-registration) (Must be >=7 days after most recent transfusion)

- PRE-REGISTRATION: Total bilirubin =< 1.5 x upper limit of normal (ULN) (obtained =< 28
days prior to pre-registration)

- PRE-REGISTRATION: Aspartate transaminase (AST) and alanine transaminase (ALT) =< 2.5 x
ULN or =< 5 x ULN for patients with liver metastases (obtained =< 28 days prior to
pre-registration)

- PRE-REGISTRATION: Creatinine =< 1.5 x ULN OR calculated creatinine clearance must be
>= 50 ml/min using the Cockcroft-Gault formula (obtained =< 28 days prior to
pre-registration)

- PRE-REGISTRATION: International normalized ratio (INR) or prothrombin time (PT) and
activated partial thromboplastin time (aPTT) =< 1.5 x ULN unless patient is receiving
anticoagulant therapy in which case PT or PTT must be within target range of therapy
(obtained =< 28 days prior to pre-registration)

- REGISTRATION COHORT 1 ONLY: Histologically confirmed unresectable locally advanced or
metastatic solid malignancies

- REGISTRATION COHORT 1 ONLY: Has cancer progression after at least one line of standard
of care systemic treatment

- REGISTRATION COHORT 2 ONLY: Histologically confirmed unresectable locally advanced or
metastatic solid malignancies that pembrolizumab is FDA approved indication (including
melanoma, non-small cell lung cancer (NSCLC), head and neck squamous cell cancer
(HSNCC), urothelial carcinoma, any microsatellite instability (MSI)-high tumor,
gastric or gastroesophageal junction (GEJ) adenocarcinoma, cervical cancer,
hepatocellular carcinoma (HCC), merkel cell carcinoma (MCC), renal cell carcinoma
(RCC), endometrial carcinoma, tumor mutational burden-high (TMB-H) cancer, cutaneous
squamous cell carcinoma (cSCC), and triple-negative breast cancer (TNBC).

- REGISTRATION COHORT 2 ONLY: Pembrolizumab without chemotherapy remains as a reasonable
treatment option at the treating physician's decision

- REGISTRATION: Age >= 18 years

- REGISTRATION: Soft tissue lesion amenable for adequate tissue sampling

- NOTE: It should not be tumor which was radiated in the past.

- REGISTRATION: Successful sequencing and production of REAL-Neo vaccine

- REGISTRATION: Measurable disease as defined by RECIST (version 1.1) criteria

- NOTE: Tumor lesions in a previously irradiated area are not considered measurable
disease

- REGISTRATION: ECOG Performance Status (PS) 0 or 1

- REGISTRATION: Anticipated life expectancy of > 6 months

- REGISTRATION: Hemoglobin >= 9.0 g/dl (obtained =< 14 days prior to registration)

- REGISTRATION: Absolute neutrophil count (ANC) >= 1500/mm^3 (obtained =< 14 days prior
to registration)

- REGISTRATION: Platelet count >= 100,000/mm^3 (obtained =< 14 days prior to
registration)

- REGISTRATION: Total bilirubin =< 1.5 x ULN (obtained =< 14 days prior to registration)

- REGISTRATION: Alanine aminotransferase (ALT) and aspartate transaminase (AST) =< 3 x
ULN (=< 5 x ULN for patients with liver involvement) (obtained =< 14 days prior to
registration)

- REGISTRATION: PT/INR and aPTT =< 1.5 x ULN unless patient is receiving anticoagulant
therapy in which case INR or aPTT must be within target range of therapy (obtained =<
14 days prior to registration)

- REGISTRATION: Calculated creatinine clearance >= 50 ml/min using the Cockcroft-Gault
formula (obtained =< 14 days prior to registration)

- REGISTRATION: Provide written informed consent

- REGISTRATION: Willing to provide mandatory blood specimens for correlative research

- REGISTRATION: Willing to provide mandatory tissue specimens for correlative research

- REGISTRATION: Willing to return to enrolling institution for follow-up (during the
Active Monitoring Phase of the study)

- REGISTRATION: Patients with actionable genomic abnormality including, but not limited
to EGFR, ALK, MET, ROS-1, RET, NTRK, KRAS or BRAF must have also received and
progressed on at least one line of prior FDA-approved targeted therapy

- REGISTRATION: Negative pregnancy test done =< 14 days prior to registration for
persons of childbearing potential only

- NOTE: If the urine test is positive or cannot be confirmed as negative, a serum
pregnancy test will be required

- REGISTRATION: Willing to employ a highly effective method of contraception from the
time of pre-registration through 6 months after the final vaccine cycle

- REGISTRATION: Willing to receive a tetanus vaccination if subject has not had one =< 1
year prior to pre-registration

- REGISTRATION: Recovered from all toxicities associated with prior treatment to
acceptable baseline status (for laboratory toxicity see below limits for inclusion) or
National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE),
version 5.0, Grade of 0 or 1, except for toxicities not considered a safety risk per
treating investigator (e.g., alopecia or vitiligo)

Exclusion Criteria:

- PRE-REGISTRATION: Any of the following because this study involves an investigational
agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and
newborn are unknown:

- Pregnant person

- Nursing person unwilling to stop breast feeding

- Person of childbearing potential who are unwilling to employ adequate
contraception from the time of registration through 6 months after the final
vaccine cycle

- PRE-REGISTRATION: Co-morbid systemic illnesses or other severe concurrent disease
which, in the judgment 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 prescribed regimens

- PRE-REGISTRATION: History of myocardial infarction =< 6 months prior to
pre-registration, or congestive heart failure requiring use of ongoing maintenance
therapy for life-threatening ventricular arrhythmias.

- PRE-REGISTRATION: Acute, reversible effect(s) of prior therapy not recovered to
baseline regardless of interval since last treatment

- PRE-REGISTRATION: Uncontrolled illness including, but not limited to:

- Ongoing or active infection

- Psychiatric illness/social situations

- Dyspnea at rest due to complications of advanced malignancy or other disease that
requires continuous oxygen therapy

- Congestive heart failure with New York Heart Association class III or IV moderate
to severe objective evidence of cardiovascular disease

- Stroke =< 6 months prior to pre-registration

- Significant cardiac arrhythmia or unstable angina

- Any other conditions that would limit compliance with study requirements

- PRE-REGISTRATION: Immunocompromised patients and patients known to be human
immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy

- PRE-REGISTRATION: Receiving any other investigational agent which would be considered
as a treatment for the primary neoplasm, except for pembrolizumab

- PRE-REGISTRATION: Any prior hypersensitivity or adverse reaction to GM-CSF

- PRE-REGISTRATION: Other active malignancy =< 3 years prior to pre-registration

- EXCEPTIONS: Non-melanotic skin cancer or carcinoma-in-situ of the cervix

- NOTE: If there is a history of prior malignancy, they must not be receiving other
specific treatment for their cancer

- PRE-REGISTRATION: Known history of active autoimmune disease that has required
systemic treatment in the =< 30 days (i.e., with use of disease modifying agents,
corticosteroids, or immunosuppressive drugs) prior to pre-registration

- NOTE: Replacement therapy (e.g., thyroxine, insulin, or physiologic
corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not
considered a form of systemic treatment. Patients with vitiligo, Graves disease,
or psoriasis not requiring systemic treatment within the past 30 days are not
excluded. Patients with celiac disease controlled with diet modification are not
excluded

- REGISTRATION: Any of the following because this study involves an investigational
agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and
newborn are unknown:

- Pregnant persons

- Nursing persons

- Persons of childbearing potential who are unwilling to employ adequate
contraception

- REGISTRATION: Any of the following prior therapies:

- Chemotherapy, experimental drugs (except for pembrolizumab), or small molecules
inhibitors (except for endocrine therapies) =< 3 weeks prior to registration

- Radiation =< 2 weeks prior to registration

- Major Surgery =< 4 weeks prior to registration

- Received a live vaccine =< 30 days prior to registration

- NOTE: Recent anti-PD1 or anti-PD-L1, such as pembrolizumab, nivolumab,
atezolizumab, and durvalumab, is allowed, but the last dose of anti-PD-1 or
anti-PD-L1 treatment should be more than 21 days from first dose of vaccination
on the study (for Cohort 2 only)

- Palliative radiation therapy for symptoms control including, but not limited to,
bone metastatic lesion radiation therapy is allowed, but the last dose of
radiation therapy should be more than 14 days from the first dose of vaccination
on the study

- REGISTRATION: CTCAE >= Grade 3 treatment-emergent adverse event (TEAE) to prior
checkpoint inhibitor, TEAE requiring systemic corticosteroids (> 10 mg daily
prednisone equivalent), or permanent treatment discontinuation due to toxicity

- REGISTRATION: Neuromuscular disorders (e.g. inflammatory myopathies, muscular
dystrophy, amyotrophic lateral sclerosis and spinal muscular atrophy), or a history of
rhabdomyolysis

- REGISTRATION: Active autoimmune diseases that require chronic systemic steroids (> 10
mg daily prednisone equivalent) or immunosuppressive agents

- REGISTRATION: Requirement for systemic corticosteroids (> 10 mg daily prednisone
equivalent) or other immunosuppressive medications =< 14 days prior to registration

- NOTE: Inhaled or topical steroids, and adrenal replacement steroid doses > 10 mg
daily prednisone equivalent, are permitted in the absence of active autoimmune
disease

- REGISTRATION: Evidence of leptomeningeal disease

- REGISTRATION: Central nervous system metastases that are untreated, symptomatic, or
require steroids > 10 mg daily prednisone equivalent

- NOTE: Patients with history of stable treated brain metastases are eligible.
Stable treated metastases are defined as follows: No evidence of progression for
>= 4 weeks on brain imaging (either magnetic resonance imaging [MRI] or computed
tomography [CT] scan)

- REGISTRATION: Co-morbid systemic illnesses or other severe concurrent disease which,
in the judgment 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 prescribed regimens