이 페이지는 자동 번역되었으며 번역의 정확성을 보장하지 않습니다. 참조하십시오 영문판 원본 텍스트의 경우.

CD19/CD22 재발성 또는 불응성 CD19/CD22 발현 B 세포 악성종양이 있는 소아 및 청년의 Bicistronic 키메라 항원 수용체(CAR) T 세포

2026년 10월 23일 업데이트: National Cancer Institute (NCI)

재발성 또는 불응성 CD19/CD22 발현 B 세포 악성종양이 있는 소아 및 청년의 CD19/CD22 바이시스트론 키메라 항원 수용체(CAR) T 세포에 대한 1/2상 용량 증량 연구

Background:

Acute lymphoblastic leukemia (ALL) is the most common cancer in children. About 90% of children and young adults who are treated for ALL can now be cured. But if the disease comes back, the survival rate drops to less than 50%. Better treatments are needed for ALL relapses.

Objective:

To test chimeric antigen receptor (CAR) therapy. CARs are genetically modified cells created from each patient s own blood cells. his trial will use a new type of CAR T-cell that is targeting both CD19 and CD22 at the same time. CD19 and CD22 are proteins found on the surface of most types of ALL.

Eligibility:

People aged 3 to 39 with ALL or related B-cell lymphoma that has not been cured by standard therapy.

Design:

Participants will be screened. This will include:

Physical exam

Blood and urine tests

Tests of their lung and heart function

Imaging scans

Bone marrow biopsy. A large needle will be inserted into the body to draw some tissues from the interior of a bone.

Lumbar puncture. A needle will be inserted into the lower back to draw fluid from the area around the spinal cord.

Participants will undergo apheresis. Their blood will circulate through a machine that separates blood into different parts. The portion containing T cells will be collected; the remaining cells and fluids will be returned to the body. The T cells will be changed in a laboratory to make them better at fighting cancer cells.

Participants will receive chemotherapy starting 4 or 5 days before the CAR treatment.

Participants will be admitted to the hospital. Their own modified T cells will be returned to their body.

Participants will visit the clinic 2 times a week for 28 days after treatment. Follow-up will continue for 15 years....

연구 개요

상세 설명

Background:

  • Despite improvements in therapy, acute lymphoblastic leukemia (ALL) contributes to significant morbidity and mortality for children and young adults with cancer. CD19-CAR and CD22-CAR therapy have proven highly effective in inducing remission in patients with relapsed/refractory disease.
  • Immune escape has been observed by several groups following CD19-CAR and CD22- CAR therapy for B-ALL. Investigation of this phenomenon reveals a complex biology responsible for loss or downregulation of CD19 and/or CD22 expression observed in these cases.
  • The challenges encountered with currently available CD19- and CD22-directed CAR T cells in B-ALL demonstrates the need for combinatorial treatment strategies simultaneously targeting two antigens, such as CD19 and CD22, to enhance the long-term effectiveness of CARs.
  • We have previously treated patients with B-ALL on a phase 1/2 clinical trial using a bivalent CD19/22 CAR T-cell as a first combinatorial treatment strategy. This CAR T-cell construct is well-tolerated and has yielded responses however there has been limited CAR T cell expansion and persistence. Additionally, the previously tested CD19/CD22 bivalent CAR T-cell construct is limited in its ability to target CD22.
  • This new CD19/22 targeted construct being tested in this clinical trial has improved dual targeting capability based on preclinical data/evaluation.

Objectives:

  • Phase I: Assess the safety of administering escalating doses of autologous CD19/CD22- CAR engineered T cells in children and young adults with B cell ALL or lymphoma following a cyclophosphamide/fludarabine conditioning regimen.
  • Phase II: Determine the efficacy of CD19/CD22 therapy in participants with B-ALL/ B-LBL..

Eligibility:

-Participants between >= 3 years and <= 39 years of age, with CD19+ and/or CD22+ B cell ALL or lymphoma who have relapsed or have refractory disease after at least one standard chemotherapy regimen and one salvage regimen, with no alternative curative options.

Design:

  • Phase I, 3 + 3 dose escalation design across 4 cohorts (B-ALL/B-cell lymphoblastic lymphoma: A: low-disease burden (<25 % marrow blasts without extramedullary disease) vs. B: high-disease burden (>= 25 % marrow blasts or with EMD). C: B-cell non-Hodgkin lymphoma D: CD19+ or CD22+ single antigen positivity using the following dose levels: -2: 1 x 10^5 transduced T cells/kg (+/- 20%); -1: 3 x 10^5 transduced T cells/kg (+/- 20%); 1: 1 x 10^6 transduced T cells/kg (+/- 20%); and 2: 3x 10^6 transduced T cells/kg (+/- 20%). Cohorts will enroll concurrently.

  • Participants will be treated based on disease burden and will receive 1 of 2 lymphodepleting preparative regimens:

    • Lymphodepleting preparative regimen # 1: Fludarabine (30 mg/m^2/d x 3 on Days -4, -3, -2) and cyclophosphamide (900 mg/m^2/d x 1 on Day -2) followed by infusion of CD19/CD22-CAR T-cells on D0.
    • Lymphodepleting preparative regimen #2: Fludarabine (30 mg/m2/d x 4 on Days -5, -4, -3, -2) and cyclophosphamide (600 mg/m2/d x 2 on Days -3, -2) followed by infusion of CD19/CD22-CAR T-cells on D0.
    • Determination for use of LD regimen #1 versus #2 will be based on pre-treatment absolute lymphocyte count, pre-existing cytopenias, receipt of prior CAR T-cell therapy, high disease burden and assessment of infection risk.
  • Participants will be evaluated sequentially for toxicity, antitumor effects, CAR expansion and persistence, and other biologic correlatives.

연구 유형

중재적

등록 (추정된)

130

단계

  • 2 단계
  • 1단계

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

연구 장소

    • Maryland
      • Bethesda, Maryland, 미국, 20892
        • 모병
        • National Institutes of Health Clinical Center
        • 연락하다:
          • For more information at the NIH Clinical Center contact National Cancer Institute Referral Office
          • 전화번호: 888-624-1937

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

3년 (어린이, 성인)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

모두

설명

  • INCLUSION CRITERIA:

  • Diagnosis

    • Participant must:

      • Have pathology confirmed B cell ALL (not isolated to the testis or CNS), CML with ALL transformation, or high-grade lymphoma (e.g., Burkitt's lymphoma, B-lymphoblastic lymphoma, diffuse large B-cell lymphoma, inclusive of low-grade lymphoma that has transformed to high grade disease); and
      • Have relapsed or been refractory after at least one standard chemotherapy regimen and at least one salvage treatment. Participants with Philadelphia chromosome + ALL must have failed prior tyrosine kinase inhibitor; and
      • Be ineligible for allogeneic stem cell transplant (SCT), have refused SCT, or have recurred after SCT; and
      • Be unable to access (in a timely manner), ineligible for, or have relapsed/failed after or not responded to a commercially available CD19 CAR T-cell construct; and
    • Have evidence of at least minimal residual disease or PET-avid disease (lymphoma) at the time of enrollment.

  • CD22/CD19 expression

    • Cohorts A1b, B1b, C2b

      • CD19 must be detected on >15% of the malignant cells by immunohistochemistry or > 80% by flow cytometry.
      • CD22 positivity must be confirmed.
    • Cohorts D1b, 2 B-ALL

      • CD19 or CD22 positivity must be confirmed
      • Age >= 3 years of age and <=39 years of age at time of enrollment.
      • Clinical Performance status: Participants >= 16 years of age: Karnofsky >= 50%; Participants < 16 years of age: Lansky scale >= 50%.
  • Participants must have adequate organ and marrow function as defined below:

    • leukocytes >= 750/mcL*

    • platelets >= 50,000/mcL*

    • total bilirubin <=2 X ULN (except in the case of participants with documented Gilbert's disease > 3x ULN)

    • AST(SGOT)/ALT(SGPT) <=10 X institutional upper limit of normal

    • creatinine <= the maximum for age listed in the table below OR

    • measured creatinine clearance >=60 mL/min/1.73 m^2 for participants with creatinine levels above the max listed below per age.

      • Age (Years) <= 5 / Maximum Serum Creatinine (mg/dL) <= 0.8

      • Age (Years) 6 to <= 10 / Maximum Serum Creatinine (mg/dL) <= 1.0

      • Age (Years) >10 / Maximum Serum Creatinine (mg/dL) <= 1.2

        • a participant will not be excluded because of pancytopenia >= Grade 3 if it is due to underlying bone marrow involvement by leukemia
  • Central nervous system (CNS) Status

  • Participants with leukemia with CNS 1 and 2 disease are eligible in the absence of exclusion criteria

  • Participants of child-bearing or child-fathering potential must be willing to practice effective birth control from the time of enrollment until 12 months following completion of study treatment for women and for 4 months following completion of study treatment for men.

  • Participants who are breastfeeding or plan to breastfeed must agree to discontinue/postpone breastfeeding while on study therapy and until 1 month after the administration of CAR.

  • Cardiac function: Left ventricular ejection fraction >= 45% or fractional shortening >=28%

  • Pulmonary Function

    • Baseline oxygen saturation >92% on room air at rest
  • Ability of participant or Legally Authorized Representative (LAR) to understand and the willingness to sign a written informed consent document.

  • Ability and willingness of participant or Legally Authorized Representative (LAR) to co- enroll on 15-C-0028: Follow-up Evaluation for Gene-Therapy Related Delayed Adverse Events after Participation in Pediatric Oncology Branch Clinical Trials.

EXCLUSION CRITERIA:

Participants meeting any of the following criteria are not eligible for participation in the study:

  • Participants with CNS3 disease, progressing neurologic signs* of CNS disease, radiologically detected active CNS lymphoma (*resolving manifestation or persistent and/or irreversible findings from prior CNS involvement (e.g., blindness) is not exclusionary)

  • Hyperleukocytosis (>= 50,000 blasts/microL)

  • Positive serum or urine beta-HCG pregnancy test performed at screening.

  • Participants will be excluded based on prior therapy if they fail to meet following washout criteria:

    • Therapy: Systemic Chemotherapy, anti-neoplastic agents, antibody- based therapies

    • Washout*: >=2 weeks

    • Exceptions: 6 weeks for clofarabine or nitrosoureas; No washout for prior intrathecal chemotherapy, steroid therapy, hydroxyurea (no dose increases within prior 2 weeks) or ALL maintenance-type chemotherapy (vincristine, 6-mercaptopurine, oral methotrexate, or a tyrosine kinase inhibitor for participants with Ph+ ALL) provided there is recovery from any acute toxic effects

    • Therapy: Radiation

    • Washout*: >=3 weeks

    • Exceptions: No time restriction with radiation therapy if the volume of bone marrow treated is less than 10% and the participant has measurable/evaluable disease outside the radiation window

    • Therapy: Allogeneic Stem Cell Transplant

    • Washout*: >= 100 days since SCT; >= 30 days since completion of immunosuppression; >= 6 weeks since donor lymphocyte infusion (DLI)

    • Exceptions: Cannot have evidence of active graft-versus-host disease (GVHD) requiring systemic immunosuppression

    • Therapy: CAR T-Cell Therapy or other Adoptive Cell Therapy

    • Washout*: > 30 days post infusion

      • Washout: Time between therapy and apheresis
  • Positive HIV antibodies consistent with active HIV.

  • Positive hepatitis C antibodies or positive Hepatitis B surface antigen (HbsAG) indicative of current/active HCV/HBV.

  • Active second malignancy other than in situ carcinoma of the cervix, unless the tumor was treated with curative intent at least two years previously and participant is in remission.

  • History of severe, immediate hypersensitivity reaction attributed to compounds of similar chemical or biologic composition to any agents used in study or in the manufacturing of the cells.

  • Uncontrolled, symptomatic, intercurrent illness or social situations that would limit compliance with study requirements or in the opinion of the PI would pose an unacceptable risk to the participant.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위화되지 않음
  • 중재 모델: 병렬 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: 1/Phase I Dose Escalation-with standard LD - CLOSED

CD19/CD22-CAR-transduced T cells at escalating dose + standard LD (75 mg/mg2 Flu+ 900 mg/m2 Cy)

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 1b/Phase 1 Dose Escalation - low disease burden

CD19/CD22-CAR-transduced T cells

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 2/Phase I Dose Escalation- with intensified LD - CLOSED

CD19/CD22-CAR-transduced T cells + standard LD (120 mg/m2 Flu + 1200 mg/m2 Cy)

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 2b/Phase 1 Dose Escalation - high disease burden

CD19/CD22-CAR-transduced T cells

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 3/Phase II Dose Expansion- with low disease burden - CLOSED

CD19/CD22-CAR-transduced T cells at MTD/or highest dose administered with LD

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 3b Phase I Dose Escalation: Either CD19 or CD22 positivity

CD19/CD22-CAR-transduced T cells

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 4/Phase II Dose Expansion- with high disease burden - CLOSED

CD19/CD22-CAR-transduced T cells at MTD/or highest dose administered with LD regimen #2

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

실험적: 4b Phase II Dose Expansion in B-ALL/B-LBL

CD19/CD22-CAR-transduced T cells at RP2D

CD19/CD22-CAR-transduced T cells on D0 after lymphodepleting preparative regimen

Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the patient s body weight, at 900 mg/m2/dose after fludarabine infusion.

Fludarabine is administered as an IV infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on BSA (25 mg/m2/dose).

간섭 없음: A/Pre-treatment

All participants enrolled on the study prior to treatment initiation.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Safety
기간: 30 days post CAR T infusion

Assess the safety of administering escalating doses of autologous CD19/CD22-CAR engineered T cells in children and young adult with B cell ALL or lymphoma following a cyclophosphamide/fludarabine LD.

30 days post CAR T infusion
Efficacy
기간: Monthly until 3 months post CAR T infusion and then at 6 months and every 6 months after that, for 2 years post-infusion for each participant, up to 2 years after the entry date of the last participant.

Determine the efficacy of CD19/CD22 therapy in participants with B-ALL/B-LBL.

Monthly until 3 months post CAR T infusion and then at 6 months and every 6 months after that, for 2 years post-infusion for each participant, up to 2 years after the entry date of the last participant.

2차 결과 측정

결과 측정
측정값 설명
기간
Assess response and toxicity (CRS grade)
기간: Up to two years after last participant has entered

Assess overall response rate and CRS grades (toxicity) in participants who received subsequent infusion

Up to two years after last participant has entered
Overall response rate
기간: Monthly until 3 months post infusion and then at 6 months and every 6 months after that, for 2 years post-infusion for each participant, for up to two years from the entry date of the last participant

Phase I: Evaluate the ability of CD19/CD22-CAR T cells to mediate clinical activity in children and young adults with CD19+ and/or CD22+ B cell ALL or lymphoma.

Monthly until 3 months post infusion and then at 6 months and every 6 months after that, for 2 years post-infusion for each participant, for up to two years from the entry date of the last participant
Progression free survival (PFS) and Overall survival (OS)
기간: Up to two years after the last participant has entered.

Evaluate PFS and OS in participants, in the phase II cohort (inclusive of those treated in the phase 1 arms at the RP2D)

Up to two years after the last participant has entered.
Persistence and expansion
기간: Up to two years after the last participant has entered.

Evaluate persistence and expansion of CD19/CD22-CAR T cells in children and young adults with CD19+ and/or CD22+ B-ALL or lymphoma

Up to two years after the last participant has entered.
Adverse Events
기간: 30 days post CAR T infusion

Phase II: Assess the safety of CD19/CD22 therapy in participants with B-ALL/B-LBL regardless of disease burden and antigen expression.

30 days post CAR T infusion
Feasibility
기간: Up to two years after the last participant has entered.

Determine the feasibility of producing CD19/CD22-CAR T cells meeting the established release criteria.

Up to two years after the last participant has entered.

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 수석 연구원: Sara K Silbert, M.D., National Cancer Institute (NCI)

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2022년 12월 28일

기본 완료 (추정된)

2027년 7월 1일

연구 완료 (추정된)

2029년 7월 1일

연구 등록 날짜

최초 제출

2022년 7월 1일

QC 기준을 충족하는 최초 제출

2022년 7월 1일

처음 게시됨 (실제)

2022년 7월 5일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 10월 26일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 10월 23일

마지막으로 확인됨

2026년 10월 22일

추가 정보

이 연구와 관련된 용어

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

예

IPD 계획 설명

All IPD recorded in the medical record will be shared with intramural investigators upon request.

IPD 공유 기간

Clinical data available during the study and indefinitely.

IPD 공유 액세스 기준

Clinical data will be made available via subscription to BTRIS and with the permission of the study PI.

IPD 공유 지원 정보 유형

  • 연구_프로토콜
  • 수액
  • ICF

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

예

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

구독하다