Immunogene-modified T (IgT) Cells Against Glioblastoma Multiforme

Study Purpose

This study aims to treat patients who have been diagnosed with brain cancer including glioblastoma multiforme (GBM). The treatment combines two different approaches to fight cancer: immune modulators and antigen-specific T cells. Immune checkpoint antibodies have been tested on various tumors with good outcomes. GBM is known to express increased levels of certain antigens that can be targeted by antigen-specific T cells. Thus, in this study, the gene-modified T cells specific for GBM antigens will be combined with immune modulatory genes to treat patients in dose escalation cohorts.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 1 Year - 80 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

1. abilities to understand and the willingness to provide written informed consent; 2. patients are ≥ 1 and ≤ 80 years old; 3. recurrent glioblastoma or brain tumor patients with measurable tumors. Patients have received standard care of medication, such as gross total resection with concurrent radio-chemotherapy (~54
  • - 60 Gy, TMZ).
Patients must either not be receiving dexamethasone or receiving ≤ 4 mg/day at the time of leukopheresis; 4. Malignant cells are target antigen positive confirmed by immunostaining, quantitative PCR or sequencing; 5. karnofsky performance score (KPS) ≥ 60; 6. life expectancy >3 months; 7. satisfactory bone marrow, liver and kidney functions as defined by the following: absolute neutrophile count ≥ 1500/mm^3; hemoglobin > 10 g/dL; platelets > 100000 /mm^3; Bilirubin < 1.5×ULN; alanine aminotransferase (ALT) or aspartate aminotransferase (AST) < 2.5×ULN; creatinine < 1.5×ULN; 8. peripheral blood absolute lymphocyte count must be above 0.8×10^9/L; 9. satisfactory heart functions; 10. patients must be willing to follow the orders of doctors; 11. women of reproductive potential (between 15 and 49 years old) must have a negative pregnancy test within 7 days of study start. Male and female patients of reproductive potential must agree to use birth control during the study and 3 months post study.

Exclusion Criteria:

1. a prior history of gliadel implantation 4 weeks before this study start or antibody based therapies; 2. HIV positive; 3. tuberculosis infection not under control; 4. history of autoimmune disease, or other diseases require long-term administration of steroids or immunosuppressive therapies; 5. history of allergic disease, or allergy to immune cells or study product excipients; 6. patients already enrolled in other immune cell clinical study; 7. patients, in the opinion of investigators, may not be eligible or not able to comply with the study.

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT03170141
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Shenzhen Geno-Immune Medical Institute
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Lung-Ji Chang, PhD
Principal Investigator Affiliation Shenzhen Geno-Immune Medical Institute
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Other
Overall Status Enrolling by invitation
Countries China
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Glioblastoma Multiforme of Brain, Glioblastoma Multiforme
Additional Details

Background: Glioblastoma multiforme (GBM) is the most dangerous and aggressive form of brain cancer. Chimeric antigen receptor (CAR)-modified T cells have been shown to mediate long-term durable remissions in recurrent or refractory CD19+ B cell malignancies, and thus the CAR-T therapy approach is considered a promising treatment against GBM. Certain antigens are highly specific in GBM, such as epidermal growth factor receptor variant iii, EGFRviii. EGFRviii is a variant form of EGFR protein, and one of the potential target antigens in GBM. Alternative antigens such as GD2 and MucI have also been targeted as potential GBM antigens. Tumor microenvironment is known to suppressive anti-cancer immune responses. Many immune checkpoint inhibitors have demonstrated marked anti-tumor activities. Instead of infusing antibodies, this study aims to infuse antigen-specific T cells modified with immune modulatory genes (IgT) such as genes encoding immune checkpoint inhibitors. Combination of tumor targeting and immune modulatory activities, the IgT cells could target both the tumor cells and the tumor microenvironment.

Arms & Interventions

Arms

Experimental: Antigen-specific IgT cells

Patients will receive non-myeloablative chemotherapy consisting of fludarabine and/or cyclophosphamide, followed by intravenous infusion of autologous IgT cells. A standard 3+3 escalation approach will be used to obtain the safe dosage of IgT cells. The tested IgT cell dosage ranges from 0.5×10^5 /kg to 2.5×10^7 /kg

Interventions

Biological: - Antigen-specific IgT cells

Tumor antigen-specific IgT cells are infused intravenously or directly to the tumor location of the patients in a three-day split-dose regimen(day 0,10%; day1, 30%; day2, 60%)to complete a total targeted dose. Drug: cyclophosphamide 250 mg/m^2 d1-3; Drug: Fludarabine 25mg/m^2 d1-3

Contact a Trial Team

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International Sites

Shenzhen Geno-immune Medical Institute, Shenzhen, Guangdong, China

Status

Address

Shenzhen Geno-immune Medical Institute

Shenzhen, Guangdong, 518000

Shenzhen People's Hospital, Shenzhen, Guangdong, China

Status

Address

Shenzhen People's Hospital

Shenzhen, Guangdong, 518100

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