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Clinical Trials/NCT05685004
NCT05685004Active, not recruitingPhase 2

Randomized Phase 2b Study of Safety And Efficacy Of TVI-Brain-1 Combined With Conformal Radiotherapy And Temozolomide Vs Standard Therapy In Newly Diagnosed MGMT Negative Glioblastoma Multiforme (GBM)

TVAX Biomedical8 sites in 1 country120 target enrollmentStarted: September 15, 2023Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 2
Status
Active, not recruiting
Sponsor
Enrollment
120
Locations
8
Primary Endpoint
Survival

Study Overview

Brief Summary

This randomized study is designed to compare the combination of TVI-Brain-1 immunotherapy and standard therapy compared to standard therapy alone as a treatment for newly diagnosed MGMT unmethylated glioblastoma patients. The patients' own cancer cells collected after surgery are combined into a vaccine to produce an immune response that significantly increases the number of cancer neoantigen-specific effector T cell precursors in the patient's body. These cancer neoantigen-specific T cells are harvested from the blood, subsequently stimulated and expanded, and infused back into the patient.

Detailed Description

This randomized study is designed to compare the combination of TVI-Brain-1 immunotherapy and standard therapy compared to standard therapy alone as a treatment for newly diagnosed MGMT unmethylated glioblastoma patients. The general procedures include the collection and testing of cancer tissue samples after surgery and chemoradiation therapy (radiation and temozolomide). For the patients randomized into the investigational study treatment group, they will also receive two vaccinations created from their own cancer cells, undergo leukapheresis to collect immune T-cells from their blood, and transfer of those activated effector T-cells after chemoradiation therapy. All patients are followed with MRIs at follow-up visits.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Single (Outcomes Assessor)

Masking Description

Blinded over-read of sequential MRI assessments

Eligibility Criteria

Ages
18 Years to 80 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Newly diagnosed MGMT unmethylated glioblastoma multiforme (no prior treatment)
  • Sufficient cancer tissue obtained to allow for manufacture of autologous cancer cell vaccines
  • The attenuated autologous cancer cell product generated has satisfied the product release criteria as determined by the sponsor quality control department
  • Medical history, physical examination and laboratory testing performed within approximately 7 days before enrollment revealing kidney and liver organ function within normal limits
  • not currently receiving glucocorticoids and have been off glucocorticoids for at least 24 hours prior to vaccination as well as when they receive the T cell infusion.
  • Patient function assessment (Karnofsky score is > 60)
  • a life expectancy of > 12 weeks.
  • Hemoglobin is > 10 g/dL (may be transfused)
  • White blood cell count is > 3,000 cells/microliter (mcL) of blood.
  • Platelet count is > 100,000 platelets per mcL of blood (transfusion independent)
  • Lymphocyte count is > 1,000 cells/mcL of blood.

Exclusion Criteria

  • another concomitant life-threatening disease (not including glioblastoma multiforme)
  • a second malignancy that is not in remission as determined by the clinical investigator. Exception: squamous or basal cell carcinoma of the skin.
  • requirement for treatment with glucocorticoids to control brain swelling
  • presence of active autoimmune disease that is currently being actively treated.
  • psychological, familial, sociological or geographical conditions that do not permit adequate medical follow-up and compliance with the study protocol.
  • Current pregnancy or a plan to become pregnant within 1-year following the study.

Arms & Interventions

Standard of Care

Active Comparator

Subjects will have standard surgery which will be followed approximately 5 weeks later by combined radiotherapy and chemotherapy consisting of temozolomide 75 mg/m2 dosed once daily beginning on the first day of radiotherapy and continuing until the final day of radiotherapy. Subjects will receive adjuvant temozolomide, and proceed with post therapy surveillance.

Intervention: Standard of Care (Procedure)

Standard of Care

Active Comparator

Subjects will have standard surgery which will be followed approximately 5 weeks later by combined radiotherapy and chemotherapy consisting of temozolomide 75 mg/m2 dosed once daily beginning on the first day of radiotherapy and continuing until the final day of radiotherapy. Subjects will receive adjuvant temozolomide, and proceed with post therapy surveillance.

Intervention: Radiotherapy (Radiation)

Standard of Care

Active Comparator

Subjects will have standard surgery which will be followed approximately 5 weeks later by combined radiotherapy and chemotherapy consisting of temozolomide 75 mg/m2 dosed once daily beginning on the first day of radiotherapy and continuing until the final day of radiotherapy. Subjects will receive adjuvant temozolomide, and proceed with post therapy surveillance.

Intervention: Temozolomide (Drug)

Interventional TVI-Brain-1 Autologous Vaccine and activated autologous blood-derived t cells

Experimental

TVI-Brain-1 immunotherapy is integrated with radiation and temozolomide in the test group in the following manner: 1) Subjects undergo surgical resection of their cancer and are tapered off steroids. 2) Subjects receive the first vaccination of TVI-Brain-1 as soon as the laboratory prepared vaccine is available for use (approximately 7 - 14 days following surgery). 3) Subjects receive a second vaccination 7-10 days later. 4) Subjects are leukapheresed to obtain immune T cells for ex vivo-activation. 5) Subjects' T cells are stored frozen until after chemoradiotherapy is completed. 6) Following chemoradiotherapy Subjects are infused with activated effector T cells followed by a 10-day course of low-dose interleukin 2 (IL-2). 7) Subjects then proceed with post therapy surveillance.

Intervention: TVI-Brain-1 (Biological)

Interventional TVI-Brain-1 Autologous Vaccine and activated autologous blood-derived t cells

Experimental

TVI-Brain-1 immunotherapy is integrated with radiation and temozolomide in the test group in the following manner: 1) Subjects undergo surgical resection of their cancer and are tapered off steroids. 2) Subjects receive the first vaccination of TVI-Brain-1 as soon as the laboratory prepared vaccine is available for use (approximately 7 - 14 days following surgery). 3) Subjects receive a second vaccination 7-10 days later. 4) Subjects are leukapheresed to obtain immune T cells for ex vivo-activation. 5) Subjects' T cells are stored frozen until after chemoradiotherapy is completed. 6) Following chemoradiotherapy Subjects are infused with activated effector T cells followed by a 10-day course of low-dose interleukin 2 (IL-2). 7) Subjects then proceed with post therapy surveillance.

Intervention: Standard of Care (Procedure)

Interventional TVI-Brain-1 Autologous Vaccine and activated autologous blood-derived t cells

Experimental

TVI-Brain-1 immunotherapy is integrated with radiation and temozolomide in the test group in the following manner: 1) Subjects undergo surgical resection of their cancer and are tapered off steroids. 2) Subjects receive the first vaccination of TVI-Brain-1 as soon as the laboratory prepared vaccine is available for use (approximately 7 - 14 days following surgery). 3) Subjects receive a second vaccination 7-10 days later. 4) Subjects are leukapheresed to obtain immune T cells for ex vivo-activation. 5) Subjects' T cells are stored frozen until after chemoradiotherapy is completed. 6) Following chemoradiotherapy Subjects are infused with activated effector T cells followed by a 10-day course of low-dose interleukin 2 (IL-2). 7) Subjects then proceed with post therapy surveillance.

Intervention: Radiotherapy (Radiation)

Interventional TVI-Brain-1 Autologous Vaccine and activated autologous blood-derived t cells

Experimental

TVI-Brain-1 immunotherapy is integrated with radiation and temozolomide in the test group in the following manner: 1) Subjects undergo surgical resection of their cancer and are tapered off steroids. 2) Subjects receive the first vaccination of TVI-Brain-1 as soon as the laboratory prepared vaccine is available for use (approximately 7 - 14 days following surgery). 3) Subjects receive a second vaccination 7-10 days later. 4) Subjects are leukapheresed to obtain immune T cells for ex vivo-activation. 5) Subjects' T cells are stored frozen until after chemoradiotherapy is completed. 6) Following chemoradiotherapy Subjects are infused with activated effector T cells followed by a 10-day course of low-dose interleukin 2 (IL-2). 7) Subjects then proceed with post therapy surveillance.

Intervention: Temozolomide (Drug)

Outcomes

Primary Outcomes

Survival

Time Frame: From date of randomization until the date of death from any cause assessed up to 24 months after randomization.

All Subjects will be evaluated and contacted to evaluate their status

Secondary Outcomes

  • Progression-free survival(From date of randomization until the date of first documented progression assessed up to 24 months after randomization)

Investigators

Sponsor
TVAX Biomedical
Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (8)

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