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Combination Transfer of αCD19-TCRz-41BB and αCD22-TCRz-41BB CAR-T Cells for B-cell Hematologic Malignancy

11. oktober 2016 opdateret af: Jiang Cao, Xuzhou Medical University

A Phase I/II Study of Combination Transfer of αCD19-TCRz-41BB and αCD22-TCRz-41BB Chimeric Antigen Receptor T-Cells in Patients With Refractory or Recurrent CD19/22+ B-lineage Leukemia/Lymphoma

Clinical study of CD19 CAR-T in the treatment of blood and lymphatic system tumor has been achieved a breakthrough. The main solution in clinical research is to use CD19 CAR-T infusion alone. Because of the heterogeneity of the tumor, the patient often carries tumor cells with CD19 deficient but other positive target antigens (such as CD22). Specifically removal of CD19 positive tumor cells in CAR-T treatment, CD19 negative tumor cells or tumor cells which carry other target antigens would amplify with extra free space released at the same time, resulting in the relapse of tumors of heterogeneities. In order to effectively control the recurrence, CAR-T treatment scheme specific for several target antigens was presented and verified. However treatment with the sequential infusion of different target specific CAR-T cells, the window period between two times infusions may be the opportunity for the tumor recurrence of heterogeneity; and bispecific CAR-T has also been reported only one CAR can be fully functioned. In order to avoid these problems, this topic puts forward for the first time in the international with a treatment scheme of an equal amount of infusion of CD19-41BB and CD22-41BB two Car-T in the treatment of refractory hematologic malignancies. We expect the treatment is more effective in eliminating tumor burden, and also can inhibit the recurrence of tumor heterogeneity at the same time.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

To determine:

Primary Outcome Measure:

  • Safety (incidence of adverse events defined as dose-limited toxicity)

Secondary Outcome Measures:

  • Survival of CAR T cells in circulation measured by flow cytometry and qPCR
  • Overall complete remission rate
  • Tissue infiltration of transferred CAR-T cells
  • In vitro killing potential of infiltrated CAR-T cells
  • Phenotype of infused CAR-T cells

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

20

Fase

  • Fase 2
  • Fase 1

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • 18 Years to 70 Years, Male and female
  • Expected survival > 12 weeks
  • Performance score 0-2
  • Histologically confirmed as CD19/22-positive lymphoma/leukemia and who meet one of the following conditions; Patient receive at least 2-4 prior combination chemotherapy regimens (not including single agent monoclonal antibody therapy) and fail to achieve CR; or have disease recurrence; or not eligible for allogeneic stem cell transplantation; or disease responding or stable after most recent therapy but refused further treatment; Disease recurrence after stem cell transplantation; Diagnosis as lymphoma, but refuse conventional treatment such as chemotherapy, radiation, stem cell transplantation and monoclonal antibody therapy
  • Creatinine < 2.5 mg/dl;
  • ALT/AST < 3x normal;
  • Bilirubin < 2.0 mg/dl;
  • Adequate venous access for apheresis, and no other contraindications for leukapheresis;
  • Take contraceptive measures before recruit to this trial;
  • Written voluntary informed consent is given.

Exclusion Criteria:

  • Patients with symptoms of central nervous system
  • Accompanied by other malignant tumor
  • Active hepatitis B or C, HIV infection
  • Any other diseases could affect the outcome of this trial
  • Suffering severe cardiovascular or respiratory disease
  • Poorly controlled hypertension
  • A history of mental illness and poorly controlled
  • Taking immunosuppressive agents within 1 week due to organ transplantation or other disease which need long-lasting administration
  • Occurrence of unstable pulmonary embolism, deep vein thrombosis, or other major arterial/venous thromboembolic events 30 days prior to assignment
  • Reaching a steady dose if receiving anticoagulant therapy before assignment
  • Female study participants of reproductive potential must have a negative serum or urine pregnancy test performed within 48 hours before infusion
  • Pregnant or lactating women
  • Subject suffering disease affects the understanding of informed consent or comply with study protocol

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Mixed CAR-T Transfer
All subjects will be infused with αCD19-TCRz-41BB and αCD22-TCRz-41BB CAR-T cells in equal number
Biologisk: Mixed CAR-T Transfer
All subjects will be infused with αCD19-TCRz-41BB and αCD22-TCRz-41BB CAR-T cells in equal number

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Sikkerhed (hyppighed af uønskede hændelser defineret som dosisbegrænset toksicitet)
Tidsramme: 30 dage
30 dage

Sekundære resultatmål

Resultatmål
Tidsramme
Samlet fuldstændig remissionsrate
Tidsramme: 8 uger
8 uger
Survival of CAR T cells in circulation measured by flow cytometry and qPCR
Tidsramme: 1 years
1 years
Tissue infiltration of transferred CAR-T cells
Tidsramme: 1 years
1 years
In vitro killing potential of infiltrated CAR-T cells
Tidsramme: 1 years
1 years
Phenotype of infused CAR-T cells
Tidsramme: 1 years
1 years

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Xuzhou Medical University

Efterforskere

  • Ledende efterforsker: Jiang Cao, Doctor, Xuzhou Medical University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. september 2016

Primær færdiggørelse (Forventet)

1. december 2018

Studieafslutning (Forventet)

1. december 2019

Datoer for studieregistrering

Først indsendt

13. september 2016

Først indsendt, der opfyldte QC-kriterier

15. september 2016

Først opslået (Skøn)

16. september 2016

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

12. oktober 2016

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

11. oktober 2016

Sidst verificeret

1. oktober 2016

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • XZCJ20160001

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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