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再発性または新たに診断された神経膠芽腫の被験者を対象とした維持テモゾロミドと組み合わせた活性化遺伝子改変同種または自家 γδ T 細胞 (DeltEx) による第 1b/2 相薬剤耐性免疫療法

2026年11月2日 更新者:In8bio Inc.

再発性の被験者における維持テモゾロミド(TMZ)と組み合わせた活性化遺伝子改変同種または自己γδT細胞(DeltEx)による薬剤耐性免疫療法(DRI)の安全性、耐性および有効性を調査する第1b / 2相非盲検試験または新たに診断された膠芽腫

This multicenter, Phase 1b/2 study is being conducted to determine if the experimental cell therapy is safe, tolerable and can delay the return of cancer in patients with a newly diagnosed or recurrent glioblastoma multiforme (GBM) in combination with standard chemotherapy treatment temozolomide (TMZ). If there is a 25% or greater improvement in survival in this study then the therapy should be studied further.

調査の概要

詳細な説明

This is a Phase 1b and 2 open-label cellular therapy trial using genetically modified gamma-delta (γδ) T cells or DeltEx Drug Resistant Immunotherapy (DRI). Gamma-delta T cells are a type of immune cell that may help the immune system recognize and kill cancer cells. The cells have been modified to make them resistant to the killing effects of chemotherapy such that they may be administered in combination with chemotherapy without being destroyed. The chemotherapy that is being used in this study is called temozolomide (TMZ) which is the standard-of-care used to treat glioblastoma patients. The DRI cells are given in combination with a standard dose of TMZ and are administered through a catheter directly into the brain where the tumor is located.

There are four arms to this study for eligible subjects with either newly diagnosed or relapsed IDH wild-type (IDH-wt) glioblastoma (GBM). Arm A will enroll newly diagnosed glioblastoma subjects to receive DRI cells derived from their own cells (autologous). The Phase 1b, Arms B and C will enroll subjects to receive DRI cells derived from a donor's cells (allogeneic). Subjects in the Phase 1b portion and Arm B must have relapsed disease, that is disease that has returned after initial treatment, while Arm A and C subjects must have newly diagnosed disease.

Prescreening subjects will have a standard-of-care surgical resection of their tumor. Once their preliminary eligibility is confirmed, they will have a Rickham catheter placed which is a device typically used to deliver chemotherapy into the brain that will be used to deliver the DRI cells directly to the tumor.

Following the surgical resection, subjects in Arm A will return to the study doctor's office/clinic to undergo a procedure called an apheresis. This procedure will isolate the immune cells from the blood to help make the DRI product for the subject. These cells include the gamma-delta T cells that will be used to make the DRI cells. Once the cells for the DRI product are made, they are frozen and stored for future use. In the Phase Ib and Arms B and C of the trial, a donor will undergo apheresis to provide the source of cells for the DRI product.

Following apheresis and confirmation that the required number of gamma-delta T cells were successfully collected; subjects in Arm A and C will begin the recommended or standard-of-care treatment for newly diagnosed GBM. This will include six weeks of chemotherapy with TMZ and radiation. Subjects will then have about a four week break prior to beginning the maintenance phase of treatment. Maintenance therapy includes five days of chemotherapy, every 28 days, which is repeated for six cycles. The previously frozen DRI product is thawed, prepared and is infused on the first day of each five-day cycle through the Rickham catheter. Subjects received a total of 6 infusions.

Subjects in the Phase Ib and Arm B will only receive one dose of TMZ along with the DRI product every 28 days for a total of six cycles.

Subjects will be observed for a of minimum 30 days after receiving the first dose of the DRI gamma-delta T cells. Subjects will be followed for potential side effects. The approximate duration of the study may be up to 15 years, or until disease progression or subjects withdraw from the study.

研究の種類

介入

入学 (推定)

4

段階

  • フェーズ2
  • フェーズ 1

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Alabama
      • Birmingham、Alabama、アメリカ、35294
        • University of Alabama at Birmingham
    • Florida
      • Tampa、Florida、アメリカ、33612
        • Moffitt Cancer Center
    • Kentucky
      • Louisville、Kentucky、アメリカ、40202
        • University of Louisville Hospital/James Graham Brown Cancer Center
    • Ohio
      • Cleveland、Ohio、アメリカ、44195
        • Cleveland Clinic
      • Columbus、Ohio、アメリカ、43210
        • Ohio State University Wexner Medical Center- James Cancer Center

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Subjects with histologically or cytologically confirmed history of IDH-wild type glioblastoma

    • Phase 1b and Arm B of Phase 2: Subjects must have completed no more than one standard therapy for glioblastoma, have received no prior Avastin® therapy (unless solely used for edema management) and be eligible for resection
    • Arms A and C: Subjects must have newly diagnosed, treatment naïve glioblastoma
    • Phase 1b and Arm B and Arm C: Subjects must have a partially matched haploidentical or matched related donor.
  • Subjects with magnetic resonance imaging (MRI) features consistent with and suspicious for recurrent malignant glioma in Phase 1b and Arm B.

  • Agreeable to inserting and maintaining a Rickham catheter.

  • ≥ 18 years of age.

  • Karnofsky Performance Status ≥ 70%

  • Female subjects of childbearing potential must have a negative urine/serum pregnancy test within 72 hours of study enrollment. Female subjects of childbearing potential are those who have not been surgically sterilized or have not been free of menses for > 2 years.

  • Male subjects and their female partners and female subjects of childbearing potential must be willing to use a combination of two methods of birth control or be surgically sterile or abstain from heterosexual activity for the course of the study.

Exclusion Criteria:

  • Subject in Arm A or donor from Phase 1b, Arms B, and Arm C received vaccinations within 4 weeks or underwent surgery (major or minor) within 72 hours before leukapheresis collection.
  • Cellular immunotherapy or gene therapy or within six weeks prior to entering the study, surgical resection or alkylating agent chemotherapy within four weeks prior to entering the study, receiving tumor treating fields (TTF) Optune therapy, or have received experimental immunotherapy at any time
  • Subjects receiving any other investigational agents concurrently while on study.
  • Have not recovered from adverse events (≤ Grade 1) from previously administered therapy. Subjects with alopecia unless of immune origin are an exception to this criterion and may qualify for this study
  • Have received prior treatment with an allogeneic therapy, including bone marrow or solid tumor transplant.
  • Concurrent malignancy or an active second malignancy. Subjects with a history of second malignancy must have no evidence of cancer for two years prior to enrolment or have a surgically cured cancer with low risk of recurrence to enroll. Discuss with medical monitor prior to enrolment.
  • Contraindication to the placement of an intracranial access device (Rickham catheter) at the time of surgery.
  • Prior history of encephalitis, multiple sclerosis, or other CNS infection <1 year prior to glioblastoma diagnosis.
  • Uncontrolled intercurrent illness including, but not limited to ongoing or active infection, or any other medical condition that precludes surgery. Also, medical/surgical/psychiatric illness/social situations that would limit compliance with study requirements or confound interpretation of safety and efficacy data. Subjects with a history of seizure as a result of their glioblastoma must be seizure free and on appropriate anti-epileptic medication for 3 weeks prior to dosing with the investigational agent.
  • Allergies/hypersensitivity to amino bisphosphonates such as Zoledronate®, Pamidronate® or similar.
  • History of HIV or active hepatitis even if well controlled or history of an autoimmune condition.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:非ランダム化
  • 介入モデル:単一グループの割り当て
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:1) Autologous Newly Diagnosed Disease: Phase 2 Arm A

Arm A subjects with newly diagnosed disease will receive autologously derived, genetically modified gamma-delta T cells administered with maintenance temozolomide.

Arm A: Cells will be administered on Day 1 of each of 6, 28-day cycles in combination with TMZ maintenance

実験的:2) Allogeneic Relapsed Disease: Phase 1b and Phase 2

Phase 1b subjects with relapsed disease will have allogeneic derived, genetically modified gamma-delta T cells administered with temozolomide

Phase 1b and Arm B: Cells will be administered on Day 1 of each of 6, 28-day cycles in combination with D1 of TMZ 150mg/m2

Arms C: Cells will be administered on Day 1 of each of 6, 28-day cycles in combination with TMZ maintenance

実験的:3) Allogeneic Newly Diagnosed Disease: Phase 2 Arm C

Arm C subjects with newly diagnosed disease will receive allogeneic derived, genetically modified gamma-delta T cells administered with maintenance temozolomide.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Autologous Phase 2, Arm A in newly diagnosed glioblastoma: 12-month overall survival (OS) rate
時間枠:12 Months

Date of first dose to date of death by any cause

12 Months
Allogeneic Phase 1b, establishes the recommended phase 2 dose (RP2D) for phase 2 allogeneic arms and subject or product characteristics that will optimize manufacturing
時間枠:28 days

<30% dose limiting toxicity (DLT) observed with dose

28 days
Allogeneic Phase 2, Arm B confirmed recurrent glioblastoma, 9-month overall survival (OS)
時間枠:9 Months

Date of first dose to date of death by any cause

9 Months
Allogeneic Phase 2, Arm C newly diagnosed glioblastoma, 12-month overall survival (OS) rate
時間枠:12 Months

Date of first dose to date of death by any cause

12 Months

二次結果の測定

結果測定
メジャーの説明
時間枠
Assessment of safety
時間枠:12 Months

Assessment of safety is based on total number of treatment emergent adverse events and serious adverse events Assessment of safety is also based on change from baseline of clinical laboratory tests including change in liver function tests, renal function and complete blood counts Assessment of safety is also based on change from baseline of vital signs including heart rate, blood pressure, temperature and pulse oximetry

12 Months
Assessment of tolerability
時間枠:12 Months

Assessment of tolerability is based on total number of treatment emergent adverse events and serious adverse events Assessment of tolerability is also based on change from baseline of clinical laboratory tests including change in liver function tests, renal function and complete blood counts Assessment of tolerability is also based on change from baseline of vital signs including heart rate, blood pressure, temperature and pulse oximetry

12 Months
Overall response rate (ORR)
時間枠:12 Months

ORR is defined as the rate of the best overall response as complete response (CR) or partial response (PR).

12 Months
Time to progression (TTP)
時間枠:12 Months

Time to progression will be defined as the time from first dose until objective tumor progression

12 Months
Progression free survival (PFS)
時間枠:12 Months

PFS will be defined as the time from first dose until objective tumor progression or death, whichever comes first.

12 Months
Definition of product characteristics
時間枠:12 Months

Product characteristics that predict for maximal success of product creation:

Age of donor ( <50 years of age, 51-65 years of age, >65 years of age), Total white blood cell count and individual immune cell count (neutrophils, T cells, gamma delta T cells) of the apheresis product, Time to infusion of manufactured product of apheresis material (1 month, 2months)

12 Months

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • 主任研究者:Louis B Nabors, MD、University of Alabama at Birmingham

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2023年9月8日

一次修了 (推定)

2026年12月1日

研究の完了 (推定)

2026年12月1日

試験登録日

最初に提出

2022年12月9日

QC基準を満たした最初の提出物

2022年12月16日

最初の投稿 (実際)

2022年12月23日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月4日

QC基準を満たした最後の更新が送信されました

2026年11月2日

最終確認日

2026年3月1日

詳しくは

本研究に関する用語

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

未定

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

はい

米国FDA規制機器製品の研究

いいえ

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