Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

Testing the Addition of an Anti-cancer Viral Gene Therapy, Toca 511/Toca FC, to the Usual Treatment (Temozolomide and Radiation Therapy) for Newly Diagnosed Glioblastoma

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04105374
Recruitment Status : Not yet recruiting
First Posted : September 26, 2019
Last Update Posted : October 24, 2019
Sponsor:
Collaborator:
National Cancer Institute (NCI)
Information provided by (Responsible Party):
NRG Oncology

Brief Summary:
This phase II/III trial studies how well vocimagene amiretrorepvec (Toca 511) and extended release flucytosine (Toca FC) work when added to the usual treatment (temozolomide and radiation therapy) in treating patients with newly diagnosed glioblastoma. Toca 511 is a live virus that has been built to carry a gene into tumor cells. This gene carries instructions that cause the tumor cells to turn Toca FC, typically used to treat fungal infections, into a drug that may kill the tumor cells. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving Toca 511 and Toca FC in addition to the usual treatment (temozolomide and radiation therapy) may help shrink or stabilize cancer or extend the life of patients with newly diagnosed glioblastoma.

Condition or disease Intervention/treatment Phase
Anaplastic Astrocytoma Glioblastoma Oligodendroglioma Supratentorial Glioblastoma Drug: Extended Release Flucytosine Device: NovoTTF-100A Device Other: Quality-of-Life Assessment Other: Questionnaire Administration Radiation: Radiation Therapy Drug: Temozolomide Procedure: Therapeutic Conventional Surgery Biological: Vocimagene Amiretrorepvec Phase 2 Phase 3

  Show Detailed Description

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 900 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase II/III Randomized, Open-Label Study of Toca 511, A Retroviral Replicating Vector, Combined With Toca FC With Temozolomide and Radiation Followed by Adjuvant Temozolomide and Toca FC Compared to Temozolomide and Radiation Followed by Adjuvant Temozolomide in Patients With Newly Diagnosed Glioblastoma
Estimated Study Start Date : January 31, 2020
Estimated Primary Completion Date : November 30, 2025
Estimated Study Completion Date : November 30, 2030


Arm Intervention/treatment
Active Comparator: Arm I (surgery, radiation therapy, temozolomide)
Beginning on week 5 following standard of care surgery, patients undergo radiation therapy over 30 fractions 5 days per week for up to 6 weeks, and receive temozolomide PO QD for up to 49 days. At the discretion of treating physician, patients may also receive novoTTF-100A (Optune) device 0-7 weeks following radiation and temozolomide treatment. One month following completion of radiation therapy, patients continue to receive temozolomide PO QD on days 1-5. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity.
Device: NovoTTF-100A Device
Receive Optune device
Other Names:
  • NovoTTF-100A
  • NovoTTF-100A System
  • NovoTTFields
  • NovoTumor Treatment Fields
  • Optune
  • Optune Device

Other: Quality-of-Life Assessment
Ancillary studies
Other Name: Quality of Life Assessment

Other: Questionnaire Administration
Ancillary studies

Radiation: Radiation Therapy
Undergo radiation
Other Names:
  • Cancer Radiotherapy
  • Irradiate
  • Irradiated
  • irradiation
  • Radiation
  • Radiotherapeutics
  • RADIOTHERAPY
  • RT
  • Therapy, Radiation

Drug: Temozolomide
Given PO
Other Names:
  • CCRG-81045
  • Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-
  • M & B 39831
  • M and B 39831
  • Methazolastone
  • RP-46161
  • SCH 52365
  • Temcad
  • Temodal
  • Temodar
  • Temomedac
  • TMZ

Procedure: Therapeutic Conventional Surgery
Undergo standard of care surgery

Experimental: Arm II (Toca 511, Toca FC, radiation therapy, temozolomide)
Patients receive vocimagene amiretrorepvec via intracranial injection during surgery on day 1. Beginning on week 5 following surgery, patients receive extended release flucytosine PO TID for 7 consecutive days every 7 weeks. Patients also undergo radiation therapy and receive temozolomide as in arm I. After completion of radiation therapy and at the discretion of the treating physician, patients may continue to receive extended release flucytosine PO TID for 7 consecutive days every 8 weeks in the absence of disease progression or unacceptable toxicity.
Drug: Extended Release Flucytosine
Given PO
Other Names:
  • Extended Release 5-FC
  • Extended Release 5-Fluorocytosine
  • Extended-Release 5-FC
  • Extended-Release 5-Fluorocytosine
  • Extended-Release Flucytosine
  • Toca FC

Other: Quality-of-Life Assessment
Ancillary studies
Other Name: Quality of Life Assessment

Other: Questionnaire Administration
Ancillary studies

Radiation: Radiation Therapy
Undergo radiation
Other Names:
  • Cancer Radiotherapy
  • Irradiate
  • Irradiated
  • irradiation
  • Radiation
  • Radiotherapeutics
  • RADIOTHERAPY
  • RT
  • Therapy, Radiation

Drug: Temozolomide
Given PO
Other Names:
  • CCRG-81045
  • Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-
  • M & B 39831
  • M and B 39831
  • Methazolastone
  • RP-46161
  • SCH 52365
  • Temcad
  • Temodal
  • Temodar
  • Temomedac
  • TMZ

Procedure: Therapeutic Conventional Surgery
Undergo standard of care surgery

Biological: Vocimagene Amiretrorepvec
Given via intracranial injection
Other Names:
  • DNA (Synthetic Toca 511-encoding Retroviral Vector AC3-yCD2(V))
  • Toca 511




Primary Outcome Measures :
  1. Progression free survival (PFS) (Phase II) [ Time Frame: Time from randomization to the first documented progressive disease (PD) as determined by central review, or death due to any cause, whichever occurs first, assessed for up to 5 years ]
    Analysis of treatment comparison between the experimental and standard-of-care arms will be performed once the required number of centrally-reviewed PFS events is reached . The Kaplan-Meier method will be used to calculate the PFS rates for each of the two arms. Hazard ratio (HR) on the treatment effect will be calculated using the stratified Cox proportional hazard model. A one-sided stratified log-rank test will be used to test the difference in PFS between the two arms.

  2. Overall survival (OS) (Phase III) [ Time Frame: The time from randomization to death due to any cause, assessed up to 5 years ]
    Analysis of the treatment comparison between the experimental and standard of care arms will be performed once the required number of deaths is reached. The Kaplan-Meier method will be used to calculate the OS rates for each of the two arms. The primary endpoint will be assessed using a one-sided stratified log-rank test, incorporating only stratification factors, to test the difference in OS between the two arms. Hazard ratio (HR) on the treatment effect will be calculated using the stratified Cox proportional hazard model adjusting for stratification factors. In addition to assessing the effect of treatment arm, IDH mutation status, MGMT status, the interaction between MGMT status and treatment arm, extent of resection, and use of Optune (in only the standard-of-care arm) will be assessed using a log-rank test and Cox proportional hazards models.


Secondary Outcome Measures :
  1. Incidence of grade 3 or higher adverse events [ Time Frame: Until death, assessed up to 5 years ]
    Will be graded according to Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Counts of all adverse events (AEs) by grade will be provided by treatment arm. Frequencies and percentages will be provided for the worst grade AE experienced by the patient by treatment arm. The number of patients with at least 1 grade 3 or higher AE will be compared between the treatment arms. A comparison between treatment arms of grade 3 and higher AEs related to any aspect of protocol treatment will be tested. A comparison between arms of the following events will also be conducted: any new solid tumor, hematologic malignancy or myelodysplastic syndrome and any neurologic decline not attributed to tumor progression, and any toxicity that is possibly, probably or definitely related to protocol treatment. All comparisons will be tested using a chi-square test with a two-sided significance level of 0.05.

  2. Overall survival (OS) (Phase II) [ Time Frame: The time from randomization to death due to any cause, assessed up to 5 years ]
    The Kaplan-Meier method will be used to calculate the OS rates for each arm. HR on the group variable will be calculated using the Cox proportional hazard model. A two-sided stratified log-rank test will be used to test the difference in OS and PFS between the two arms at a significance level of 0.05.

  3. Progression free survival (PFS) (Phase III) [ Time Frame: Time from randomization to the first documented PD as determined by central review, or death due to any cause, whichever occurs first, assessed for up to 5 years ]
    The Kaplan-Meier method will be used to calculate the PFS rates for the following sets of groups: treatment arms, IDH mutation status, or extent of resection. HR on the group variable will be calculated using the Cox proportional hazard model. A two-sided stratified log-rank test will be used to test the difference in OS and PFS between the two arms at a significance level of 0.05. In addition to assessing the effect of treatment arm, IDH mutation status, MGMT status, the interaction between MGMT status and treatment arm, extent of resection, and use of Optune (in only the standard-of-care arm) will be assessed using a log-rank test and Cox proportional hazards models.

  4. Objective response rate (ORR) [ Time Frame: Up to 18 months ]
    Will be determined centrally. Frequencies and percent of responses will be provided for each group (treatment arm and IDH mutation status) for patients with measurable disease. Patients with a confirmed complete response (CR) or partial response (PR) will be considered responders. The percent of responders at 1 year will be of interest, although ORR will be calculated at 6 and 18 months as well. Between arm comparisons will be tested using a two-sided chi-square test with a significance level of 0.05.


Other Outcome Measures:
  1. Duration of response (DOR) [ Time Frame: The duration in which a durable response is observed, spanning from time of initial response until PD, assessed for up to 5 years ]
    Will only be performed in the subset of patients with measurable disease at the post-surgical MRI who respond per central review using mRANO . The Kaplan-Meier method will be used to estimate the time from initial response to PD with a log rank test used to compare between arm differences. Between arm comparisons will be tested using a t-test or Wilcoxon test, depending on the normality of the data.

  2. Tumor-microenvironment signature [ Time Frame: Up to 5 years ]
    The microenvironmental and tumor signatures are derived from ribonucleic acid (RNA) sequencing. They are continuous variables and will be correlated with tumor response and treatment effect. Descriptive statistics will be provided by treatment arm.

  3. Genome-wide deoxyribonucleic acid (DNA) methylation and copy number profiles [ Time Frame: Up to 5 years ]
    DNA methylation profiles, with the application of the DKFZ classifier, has proven useful to confirm histopathologic diagnosis, identify clinically relevant tumor subtypes and reveal specific DNA copy number changes (for example EGFR amplification in glioblastoma [GBM]). These represent both continuous and categorical variables and will be correlated with tumor response and treatment effect. Descriptive statistics will be provided by treatment arm.

  4. Corticosteroid administration [ Time Frame: Up to 5 years ]
    Corticosteroid administration will be assessed at baseline and throughout treatment and follow-up. Between arm comparisons will be tested using a two-sided chi-square test. Dexamethasone or equivalent dose will also be compared between treatment arms using a t-test or Wilcoxon test, depending on the normality of the data. Time points of interest are pre-treatment, start of chemo radiation therapy (RT), completion of chemo RT, then annually in conjunction with follow-up.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Presumptive diagnosis of glioblastoma based on magnetic resonance imaging (MRI) imaging within 14 days prior to registration.

    • NOTE: Patients who undergo treatment with Toca 511 whose final pathology shows diagnosis other than glioblastoma (e.g. anaplastic astrocytoma or oligodendroglioma or any other histology) will be treated with Toca FC and chemoradiation; however they will not be analyzed in the primary endpoint. The outcomes of these patients will be reported descriptively. Similarly the patients with anaplastic astrocytoma or oligodendroglioma or any other histology treated on the standard-of-care arm will be reported separately and they are allowed to receive the treatment per choice of the treating physician/ investigator (for e.g. radiation therapy [RT] plus temozolomide or RT plus procarbazine-lomustine-vincristine [PCV])
  • In addition, patients who have undergone biopsy with diagnosis of glioblastoma and who have never received any chemotherapy and/or radiation and are candidates for >= 80% resection of enhancing region are eligible
  • The tumor must be unifocal, confined to the supratentorial compartment and based on the pre-operative evaluation, the patient is a candidate for >= 80% resection of enhancing region
  • Measurable disease preoperatively, defined as at least 1 contrast enhancing lesion, with 2 perpendicular measurements of at least 1 cm, as per Response Assessment in Neuro-Oncology (RANO) criteria
  • The hematoxylin and eosin (H&E) slide and formalin-fixed paraffin-embedded (FFPE) tumor tissue block must be available to be sent for mandatory central pathology review after registration
  • Patients must be able to undergo an evaluation by MRI within 96 hours post surgery to assess extent of resection
  • Karnofsky performance status >= 70 within 14 days prior to registration
  • History/physical examination within 14 days prior to registration
  • Platelet count >= 100,000/mm^3 (within 14 days prior to registration)
  • Hemoglobin (Hgb) >= 10 g/dL (within 14 days prior to registration)
  • Absolute neutrophil count (ANC) >= 1,500/mm^3 (within 14 days prior to registration)
  • Absolute lymphocyte count (ALC) >= 1000/mm^3 (within 14 days prior to registration)
  • Total bilirubin =< 1.5 x upper limit of normal (ULN) (unless has Gilbert?s syndrome) (within 14 days prior to registration)
  • Alanine aminotransferase (ALT) =< 2.5 x ULN (within 14 days prior to registration)
  • Estimated glomerular filtration rate of at least 50 mL/min by the Cockcroft Gault formula (within 14 days prior to registration)
  • Women of childbearing potential (women who have not had >=12 months of non therapy induced amenorrhea or are not surgically sterile) must have had a negative serum pregnancy test within 14 days prior to registration and must agree to use a birth control method in addition to barrier methods (condoms or diaphragm) during treatment with temozolomide
  • If the patient is randomized to arm 2, the patient or patient?s partner must be willing to use barrier method of contraception for 12 months after receiving Toca 511 and 1 month after stopping Toca FC or until there is no evidence of the virus in the patient?s blood, whichever is longer
  • The patient or a legally authorized representative must provide study-specific informed consent prior to registration

Exclusion Criteria:

  • History of prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years
  • A contrast enhancing brain tumor on MRI that is any of the following:

    • Multi focal (defined as 2 separate areas of contrast enhancement measuring at least 10 mm in 2 planes that are not contiguous on either fluid attenuated inversion recovery [FLAIR] or T2 hyperintensity);
    • Associated with either diffuse subependymal or leptomeningeal dissemination; or
    • > 50 mm in any dimension
  • Active infection (excluding skin or toenail infections) requiring systemic antibiotic, antifungal or antiviral therapy within 28 days prior to registration
  • Bleeding diathesis, or must take anticoagulants, or antiplatelet agents, including nonsteroidal anti inflammatory drugs (NSAIDs), at the time of the scheduled resection that cannot be stopped for surgery
  • Known human immunodeficiency virus (HIV) positive status
  • History of allergy or intolerance to flucytosine
  • Swallowing difficulty that would prevent patient from being able to swallow either temozolomide or Toca FC or severe active mal-absorption
  • Patients who are breast feeding or lactating
  • Intent to undergo treatment with the Gliadel wafer at the time of this surgery or has received the Gliadel
  • Prior to registration, steroid treatment beyond a maximum of 8 mg/day of dexamethasone (or equivalent) or a total of 8 weeks (56 days) is excluded
  • Severe pulmonary, cardiac or other systemic disease, specifically:

    • New York Heart Association > =Class II congestive heart failure within 6 months (180 days) prior to registration, unless asymptomatic and well controlled with medication
    • Uncontrolled or significant cardiovascular disease, clinically significant ventricular arrhythmia (such as ventricular tachycardia, ventricular fibrillation, or Torsades de pointes), clinically significant pulmonary disease (such as >= grade 2 dyspnea)
    • Any other disease that as per investigator assessment may affect the patient?s compliance or place the patient at higher risk of potential treatment complications

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04105374


Sponsors and Collaborators
NRG Oncology
National Cancer Institute (NCI)
Investigators
Layout table for investigator information
Principal Investigator: Manmeet S Ahluwalia NRG Oncology

Layout table for additonal information
Responsible Party: NRG Oncology
ClinicalTrials.gov Identifier: NCT04105374     History of Changes
Other Study ID Numbers: NRG-BN006
NCI-2019-04562 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
NRG-BN006 ( Other Identifier: NRG Oncology )
NRG-BN006 ( Other Identifier: CTEP )
U10CA180868 ( U.S. NIH Grant/Contract )
First Posted: September 26, 2019    Key Record Dates
Last Update Posted: October 24, 2019
Last Verified: October 2019

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: No
Keywords provided by NRG Oncology:
Toca 511
Toca FC
Additional relevant MeSH terms:
Layout table for MeSH terms
Glioblastoma
Astrocytoma
Oligodendroglioma
Glioma
Neoplasms, Neuroepithelial
Neuroectodermal Tumors
Neoplasms, Germ Cell and Embryonal
Neoplasms by Histologic Type
Neoplasms
Neoplasms, Glandular and Epithelial
Neoplasms, Nerve Tissue
Flucytosine
Temozolomide
Antineoplastic Agents, Alkylating
Alkylating Agents
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Antifungal Agents
Anti-Infective Agents
Antimetabolites