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PVSRIPO for Patients With Unresectable Melanoma

A Phase I Trial of PVSRIPO for Patients With Unresectable Melanoma

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03712358
Enrollment
12
Registered
2018-10-19
Start date
2018-11-26
Completion date
2021-03-23
Last updated
2024-09-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Melanoma

Brief summary

This study is a Phase I study of oncolytic polio/rhinovirus recombinant (PVSRIPO) to primarily characterize the safety and tolerability of PVSRIPO in patients with AJCC Stage IIIB, IIIC, or IV melanoma in a modified 3+3 phase 1 trial design. Lesion biopsies and blood samples will be obtained pre- and post-injection throughout the study for routine histology/molecular genetic testing and immunologic analysis, respectively. Exploratory objectives include describing the response rates of PVSRIPO-injected versus non-injected lesion(s), the number of CD8 positive T cells present in the tumor biopsies before and after injection of PVSRIPO, and after PVSRIPO administration: the pathologic response in tumor biopsies, changes in the tumor microenvironment, and how systemic immune cell populations may change.

Detailed description

The Primary Objective of the study is to determine the safety profile of PVSRIPO in Stage IIIB, IIIC, and IV recurrent melanoma patients as determined by dose-limiting toxicities (DLT) by cohort, as well as in those retreated with PVSRIPO, when PVSRIPO is injected intralesionally into 1 to 3 or more cutaneous or subcutaneous lesions. As planned, up to 18 patients may be treated with PVSRIPO. Biopsy material will be obtained from tumor tissue prior to and following virus administration, which may be subjected to routine histology along with molecular genetic testing and evaluation of pathological response. Whole blood for immunologic analyses will also be collected throughout the study period. Routine study visits will occur through Day 126. Thereafter, visits will occur every 2-3 months for up to 2 years for subjects who do not progress. For patients with progressive disease, chart review only will occur every 3 months starting at the time of progression. Patients who previously participated in Cohorts 0 through 3, who in the opinion of the investigator, may benefit from continued PVSRIPO administration, may be eligible to receive additional injections.

Interventions

BIOLOGICALPVSRIPO

Intralesional injection of PVSRIPO.

Sponsors

Duke University
CollaboratorOTHER
National Cancer Institute (NCI)
CollaboratorNIH
Istari Oncology, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Undergone prior vaccination against PV and received a boost immunization with trivalent IPOL® (Sanofi-Pasteur SA) at least 1 week, but less than 6 weeks, prior to administration of PVSRIPO (within 6 months of PVSRIPO retreatment). a. Note: Patients who are unsure of their prior vaccination status/who have not been vaccinated must provide proof of vaccination and/or evidence of anti-PV immunity prior to enrollment, as applicable. 2. The patient must have received a boost immunization with trivalent inactivated IPOL™ (Sanofi-Pasteur) at least 1 week prior to administration of the study agent. 3. Patient must have histologically proven unresectable, recurrent, melanoma, stage IIIB, IIIC, or stage IV (AJCC staging must be documented in patient's medical record, as determined by CT of the chest, abdomen and pelvis, and/or whole body positron emission tomography (PET) scan, and MRI of the brain within 4 weeks prior to administration of study drug). 4. Patients with BRAF mutations, must have failed at least 2 lines of therapy, specifically one BRAF targeted therapy and at least one anti-PD-1 based therapy. For BRAF wild type, patients must have failed at least one anti-PD-1 based therapy. 5. Patient must be ≥ 18 years of age. 6. Patient must have an Eastern Cooperative Oncology Group (ECOG) / Zubrod status of 0-1. 7. Patient's disease must be bi-dimensionally measurable by caliper or radiological method as defined in the immune-related response criteria (irRC). 8. At least 1 injectable cutaneous, subcutaneous or nodal melanoma lesion ≥ 10 mm in longest diameter or, multiple injectable melanoma lesions which in aggregate have a longest diameter of ≥ 10 mm (Cohorts 0 and possibly 1). For cohorts where 2 or 3 injections are planned (Cohorts 1 and 2), the patient must have at least 2 injectable melanoma lesions (when 2 doses are planned) or ≥3 injectable melanoma lesions when at least 3 doses are planned in different lesions (Cohorts 2 through 4). a. Note: PVSRIPO retreatment requires ≥2 lesions amenable to injection. 9. At least one measurable lesion that will not be injected. 10. Serum lactate dehydrogenase (LDH) levels less than 1.5 x upper limit of normal (ULN). 11. Patient must have adequate bone marrow, liver and renal function as assessed by the following: 1. Hemoglobin \> 9.0 g/dl 2. White blood count (WBC) of \> 2000 m3 3. Absolute neutrophil count (ANC) \> 1,000/mm3 4. Platelet count \> 75,000/mm3 5. Total bilirubin \< 2.0 x ULN 6. Alanine aminotransferse (ALT) and aspartate aminotransferance (AST) \< 2.5 x the ULN

Exclusion criteria

1. Females who are pregnant or breast-feeding. 2. Adults of reproductive potential not employing an effective method of birth control. 3. Patients with severe, active co-morbidity, defined as follows: 1. Patients with an active infection requiring treatment or having an unexplained febrile illness (Tmax \> 99.5°F/37.5°C). 2. Patients with impaired cardiac function or clinically significant cardiac disease, such as congestive heart failure requiring treatment (New York Heart Association Class ≥ 2), uncontrolled hypertension or clinically significant arrhythmia; QTcF \> 470 msec on ECG if performed or congenital long QT syndrome; acute myocardial infarction or unstable angina pectoris \< 3 months prior to study. 3. Patients with known lung (FEV1 \< 50%) disease or uncontrolled diabetes mellitus (HgbA1c\>7). 4. Patients with albumin allergy. 5. Autoimmune disease: History of or current active autoimmune diseases, \[e.g. including but not limited to inflammatory bowel diseases \[IBD\], rheumatoid arthritis, autoimmune thyroiditis, autoimmune hepatitis, systemic sclerosis (scleroderma and variants), systemic lupus erythematosus, autoimmune vasculitis, autoimmune neuropathies (such as Guillain-Barre syndrome)\]. Vitiligo and adequately controlled endocrine deficiencies such as hypothyroidism are not exclusionary. 6. Known immunosuppressive disease, human immunodeficiency virus (HIV) infection, or chronic Hepatitis B or C. 4. Patients with a previous history of neurological complications due to PV infection. 5. Patients who have not recovered from the toxic effects of prior chemo- and/or radiation therapy. Guidelines for this recovery period are dependent upon the specific therapeutic agent being used. Toxicities must have resolved to CTCAE grade 1 or less with the following exceptions (alopecia, fatigue, vitiligo). 6. Patients with undetectable anti-tetanus toxoid IgG. 7. Patients with known history of agammaglobulinemia. 8. Patients on greater than 10 mg per day of prednisone within the 2 weeks prior to admission for PVSRIPO injection. 9. Patients with worsening steroid myopathy (history of gradual progression of bilateral proximal muscle weakness, and atrophy of proximal muscle groups). 10. Patients with prior, unrelated malignancy requiring current active treatment with the exception of cervical carcinoma in situ and adequately treated basal cell or squamous cell carcinoma of the skin. 11. Clinically active cerebral or bone metastases. 12. Greater than 3 visceral metastases (this does not include nodal metastases associated with visceral organs). 13. Prior allogeneic stem cell transplantation. 14. Concomitant therapy with any of the following: IL-2, interferon, or other non-study immunotherapy regimens; cytotoxic chemotherapy; immunosuppressive agents; other investigation therapies; or chronic use of systemic corticosteroids (used in the management of cancer or non-cancer-related illnesses). However, during the course of the study, use of corticosteroids is allowed if used for treating immune related adverse events (irAE), adrenal insufficiencies, or if administered at doses of prednisone 10 mg daily or equivalent. 15. Active clinically serious infection \> CTCAE Grade 2. 16. Antineoplastic therapy, radiotherapy, or any other investigational drug within 15 days prior to first study drug administration.

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Patients With Dose Limiting Toxicity by Cohort24 monthsTo characterize the safety and tolerability of PVSRIPO in American Joint Committee on Cancer (AJCC) Stage IIIB, IIIC, or IV melanoma.

Other

MeasureTime frameDescription
Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)4.1 monthsTo describe the number of CD8 positive T cells present in the tumor biopsies before and after injection of PVSRIPO.
The Change in Tumor Pathology From Baseline to After PVSRIPO Injection4.1 monthsDetermine the pathologic response in tumor biopsies after PVSRIPO by confirming presence or absence of viable tumor cells.
Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeks24 monthsTo describe the response rates via lesion size of PVSRIPO-injected versus non-injected lesion(s) as defined per the investigator using immune related response criteria (irRC).
The Change in Inflammatory Cells and Markers After PVSRIPO in Injected Versus Non Injected Lesions (Cohorts 0-3 Only)4.1 monthsDetermine changes in the tumor microenvironment from biopsies after PVSRIPO; includes but not limited to examination of CD8, PVR (CD155), PD-L1, CD4, FoxPE, and PD-1.
Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)24 monthsDescribe how systemic immune cell populations may change after treatment with PVSRIPO.
The Detection of Viral Replication in Injected Versus Non Injected Lesions (Cohorts 0-3 Only)4.1 monthsDetermine viral replication via a number of methods (e.g., qRT-PCR, ICH).

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 0 (PVSRIPO)
A single dose of PVSRIPO into a single lesion. PVSRIPO: Intralesional injection of PVSRIPO.
3
Cohort 1 (PVSRIPO)
A single dose of PVSRIPO into 2 different lesions, 21 days apart, when applicable per dose escalation guidelines. PVSRIPO: Intralesional injection of PVSRIPO.
3
Cohort 2 (PVSRIPO)
A single dose of PVSRIPO into 3 different lesions, 21 days apart, when applicable per dose escalation guidelines. PVSRIPO: Intralesional injection of PVSRIPO.
3
Cohort 3 (PVSRIPO)
A single dose of PVSRIPO into 3 different lesions, 21 days apart, when applicable per dose escalation guidelines. PVSRIPO: Intralesional injection of PVSRIPO.
3
Cohort 4 (PVSRIPO)
A single dose of PVSRIPO into a single lesion, followed by PVSRIPO injected into up to 6 lesions at Day 10 and every 21 days thereafter. PVSRIPO: Intralesional injection of PVSRIPO.
0
Total12

Baseline characteristics

CharacteristicCohort 0 (PVSRIPO)Cohort 1 (PVSRIPO)Cohort 2 (PVSRIPO)Cohort 3 (PVSRIPO)Total
Age, Continuous60.7 years
STANDARD_DEVIATION 10.69
59.7 years
STANDARD_DEVIATION 19.55
70.3 years
STANDARD_DEVIATION 4.62
71.0 years
STANDARD_DEVIATION 7.81
65.4 years
STANDARD_DEVIATION 11.64
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants3 Participants3 Participants3 Participants12 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
3 Participants3 Participants3 Participants3 Participants12 Participants
Sex: Female, Male
Female
1 Participants2 Participants0 Participants1 Participants4 Participants
Sex: Female, Male
Male
2 Participants1 Participants3 Participants2 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 30 / 30 / 30 / 0
other
Total, other adverse events
3 / 33 / 33 / 33 / 30 / 0
serious
Total, serious adverse events
0 / 30 / 30 / 30 / 30 / 0

Outcome results

Primary

Proportion of Patients With Dose Limiting Toxicity by Cohort

To characterize the safety and tolerability of PVSRIPO in American Joint Committee on Cancer (AJCC) Stage IIIB, IIIC, or IV melanoma.

Time frame: 24 months

Population: Study closed to enrollment due to business decision prior to enrolling Cohort 4.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 0 (PVSRIPO)Proportion of Patients With Dose Limiting Toxicity by Cohort0 Participants
Cohort 1 (PVSRIPO)Proportion of Patients With Dose Limiting Toxicity by Cohort0 Participants
Cohort 2 (PVSRIPO)Proportion of Patients With Dose Limiting Toxicity by Cohort0 Participants
Cohort 3 (PVSRIPO)Proportion of Patients With Dose Limiting Toxicity by Cohort0 Participants
Other Pre-specified

Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)

Describe how systemic immune cell populations may change after treatment with PVSRIPO.

Time frame: 24 months

Population: Cohort 3 missing data; Cohort 4 not enrolled

ArmMeasureGroupValue (MEAN)
Cohort 0 (PVSRIPO)Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)Pre-treatment10315 cells per 200,000 events
Cohort 0 (PVSRIPO)Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)Post-treatment5949 cells per 200,000 events
Cohort 1 (PVSRIPO)Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)Pre-treatment7879 cells per 200,000 events
Cohort 1 (PVSRIPO)Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)Post-treatment20574 cells per 200,000 events
Cohort 2 (PVSRIPO)Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)Pre-treatment39776 cells per 200,000 events
Cohort 2 (PVSRIPO)Change Relative to Baseline in Type and/or Function of T Cells Via Flow Cytometry (Cohorts 0-3 Only)Post-treatment102332 cells per 200,000 events
Other Pre-specified

Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)

To describe the number of CD8 positive T cells present in the tumor biopsies before and after injection of PVSRIPO.

Time frame: 4.1 months

Population: Cohort 4 not enrolled

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentAbsent0 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentSparse3 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentDense0 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentMissing data0 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentAbsent0 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentSparse2 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentDense0 Participants
Cohort 0 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentMissing data1 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentDense3 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentSparse1 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentAbsent0 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentMissing data0 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentSparse0 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentMissing data0 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentAbsent0 Participants
Cohort 1 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentDense2 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentDense1 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentMissing data1 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentMissing data2 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentSparse1 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentDense1 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentSparse0 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentAbsent0 Participants
Cohort 2 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentAbsent0 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentSparse0 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentDense0 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentMissing data3 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentAbsent0 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentSparse0 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentMissing data3 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentAbsent0 Participants
Cohort 3 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentDense0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentMissing data0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentMissing data0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentDense0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentDense0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentAbsent0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentSparse0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Pre-treatmentSparse0 Participants
Cohort 4 (PVSRIPO)Number of CD8 Positive T Cells by Immunohistochemistry on Pre Treatment and Post Treatment Biopsy (Cohorts 0-3 Only)Post-treatmentAbsent0 Participants
Other Pre-specified

Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeks

To describe the response rates via lesion size of PVSRIPO-injected versus non-injected lesion(s) as defined per the investigator using immune related response criteria (irRC).

Time frame: 24 months

Population: Based on immune-related response criteria (irRC).

ArmMeasureGroupValue (NUMBER)
Cohort 0 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 WeeksNot Evaluable3 participants
Cohort 0 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune related Stable Disease (irSD)0 participants
Cohort 0 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune-related Partial Response (irPR)0 participants
Cohort 1 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 WeeksNot Evaluable3 participants
Cohort 1 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune related Stable Disease (irSD)0 participants
Cohort 1 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune-related Partial Response (irPR)0 participants
Cohort 2 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune-related Partial Response (irPR)2 participants
Cohort 2 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 WeeksNot Evaluable1 participants
Cohort 2 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune related Stable Disease (irSD)0 participants
Cohort 3 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 WeeksNot Evaluable1 participants
Cohort 3 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune related Stable Disease (irSD)1 participants
Cohort 3 (PVSRIPO)Response Rates Via Measurement of Cutaneous Lesions Every 3 Weeksimmune-related Partial Response (irPR)1 participants
Other Pre-specified

The Change in Inflammatory Cells and Markers After PVSRIPO in Injected Versus Non Injected Lesions (Cohorts 0-3 Only)

Determine changes in the tumor microenvironment from biopsies after PVSRIPO; includes but not limited to examination of CD8, PVR (CD155), PD-L1, CD4, FoxPE, and PD-1.

Time frame: 4.1 months

Population: Data were not collected for this measure

Other Pre-specified

The Change in Tumor Pathology From Baseline to After PVSRIPO Injection

Determine the pathologic response in tumor biopsies after PVSRIPO by confirming presence or absence of viable tumor cells.

Time frame: 4.1 months

Population: Insufficient sample for analysis and Cohort 4 not enrolled

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 0 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionComplete response0 Participants
Cohort 0 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionNo response2 Participants
Cohort 0 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionMissing data1 Participants
Cohort 1 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionNo response2 Participants
Cohort 1 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionMissing data1 Participants
Cohort 1 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionComplete response0 Participants
Cohort 2 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionNo response1 Participants
Cohort 2 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionComplete response1 Participants
Cohort 2 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionMissing data1 Participants
Cohort 3 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionMissing data2 Participants
Cohort 3 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionNo response0 Participants
Cohort 3 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionComplete response1 Participants
Cohort 4 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionComplete response0 Participants
Cohort 4 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionNo response0 Participants
Cohort 4 (PVSRIPO)The Change in Tumor Pathology From Baseline to After PVSRIPO InjectionMissing data0 Participants
Other Pre-specified

The Detection of Viral Replication in Injected Versus Non Injected Lesions (Cohorts 0-3 Only)

Determine viral replication via a number of methods (e.g., qRT-PCR, ICH).

Time frame: 4.1 months

Population: Insufficient sample for analysis and Cohort 4 not enrolled

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026