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Studie van E7777 voorafgaand aan Kymriah voor R/R DLBCL

2 november 2026 bijgewerkt door: Masonic Cancer Center, University of Minnesota

Fase I/II-onderzoek waarbij E7777 wordt gebruikt om regulatoire T-celdepletie te verbeteren voorafgaand aan Tisagenlecleucel (Kymriah)-therapie voor recidiverend/refractair diffuus grootcellig B-cellymfoom (DLBCL)

This is a multicenter Phase I study to determine the maximum tolerated dose (MTD) of E7777 when given prior to cyclophosphamide/fludarabine (CY/Flu) lymphodepletion (LD) chemotherapy and an FDAapproved CAR-T product Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma (DLBCL) or follicular lymphoma grade 3 who are at a higher risk for failure of CAR-T therapy

Studie Overzicht

Toestand

Geschorst

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

E7777 is a recombinant fusion toxin consisting of full-length human IL-2 fused to the catalytic domains of diphtheria toxin. This trial is designed to augment lymphodepletion prior to CAR-T cells by administration of a targeted immunotoxin against CD25-expressing T-cells. CD25 is expressed at high levels on Tregs but also on activated effector T cells. The use of the CAR-T cell product and associated apheresis and LD chemotherapy is considered standard of care (SOC).

Studietype

Ingrijpend

Inschrijving (Geschat)

30

Fase

  • Fase 2
  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

    • Minnesota
      • Minneapolis, Minnesota, Verenigde Staten, 55455
        • University of Minnesota, Masonic Cancer Center

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Diagnosis of a relapse or refractory (r/r) B cell lymphoma, for which treatment with tisagenleucel (Kymriah), Axicabtagene (Yescarta) or Lisocabtagene Maraleucel (Breyanzi) is planned, including :

  • diffuse large B-cell lymphoma (DLBCL) not otherwise specified,

  • high grade B-cell lymphoma

  • DLBCL arising from follicular lymphoma

  • Primary mediastinal B cell lymphoma

  • Follicular lymphoma grade 3B

  • And considered at high risk for progression after CAR-T therapy by meeting one or more of the following factors:

  • refractory to last line of therapy/remission of less than 12 months

  • myc over expression >40% in any prior biopsy or bcl2/bcl6 and c-myc re-arrangement (double/triple hit)

    • 2 sites of extranodal disease
  • IPI ≥ 3

  • Elevated LDH at the time of relapse

  • Has secured coverage for Kymriah, Yescarta,Breyanzi administration

  • Age 18 years or older at the time of signing the consent

  • ECOG Performance status of 0, 1, or 2

  • Adequate bone marrow reserve (may be transfusion dependent)

  • Adequate organ function at enrollment and within 14 days of planned E7777 treatment as defined in Section 4.1.7

  • Hemodynamically stable and LVEF ≥ 50% confirmed by echocardiogram or MUGA

    • Grade 1 dyspnea (CTCAE v5) and SpO2 > 91% on room air
  • Sexually active females of child-bearing potential and males with partners of child bearing potential must agree to use effective contraception during therapy

  • Provides voluntary written consent prior to the performance of any research related activities.

Exclusion Criteria:

  • Pregnant or breastfeeding - Females of childbearing potential must have a blood test or urine study within 14 days prior to study enrollment to rule out pregnancy. All females will be considered to be of childbearing potential unless they are postmenopausal (amenorrheic for at least 12 consecutive months, in the appropriate age group, and without other known or suspected cause) or have been sterilized surgically (i.e., bilateral tubal ligation, total hysterectomy, or bilateral oophorectomy, all with surgery at least 1 month before dosing)
  • Known bone marrow involvement, if history of bone marrow involvement must have a BM biopsy to rule-out current involvement
  • Prior allogeneic transplant
  • Ocular disease or complaints visual acuity impairment, color or shape distortion, or blurred vision - potential participants are required to have an ophthalmological examine as part of screening
  • Active CNS involvement by malignancy (history of CNS disease with negative CSF by flow cytometry and/or stable findings on brain MRI are acceptable)
  • Uncontrolled active hepatitis B or hepatitis C
  • Active or inactive HIV infection
  • Untreated active bacterial, viral or fungal infection (e.g. blood culture positive ≤ 72 hours prior to enrollment)
  • History of heart failure or pulmonary edema, evidence of pleural effusion or active lower extremity edema
  • Uncontrolled unstable angina and/or myocardial infarction within 3 months of enrollment
  • Investigational medicinal product within the last 7 days prior to apheresis or CAR-T infusion

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Sequentiële toewijzing
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Dose level 1 : E7777 at 5 mcg/kg

Single dose of E7777 given on Day -7 two days prior to the start of lymphodepleting chemotherapy

E7777 is a recombinant fusion toxin consisting of full-length human IL-2 fused to the catalytic domains of diphtheria toxin. E7777 is preferentially bound to and internalized by cells expressing the high affinity form (CD25+) of the IL-2 receptor.

Fludarabine 25 mg/m2 IV daily for 3 days. Days -5, -4 and -3. Taken in combination with Cyclophosphamide

Cyclophosphamide 250 mg/m2 IV daily for 3 days starting with the first dose of fludarabine. Days -5, -4 and -3.

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Kymriah

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Jakarta

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Breyanzi
Experimenteel: Dose level 1 : E7777 at 7 mcg/kg

Single dose of E7777 given on Day -7 two days prior to the start of lymphodepleting chemotherapy

E7777 is a recombinant fusion toxin consisting of full-length human IL-2 fused to the catalytic domains of diphtheria toxin. E7777 is preferentially bound to and internalized by cells expressing the high affinity form (CD25+) of the IL-2 receptor.

Fludarabine 25 mg/m2 IV daily for 3 days. Days -5, -4 and -3. Taken in combination with Cyclophosphamide

Cyclophosphamide 250 mg/m2 IV daily for 3 days starting with the first dose of fludarabine. Days -5, -4 and -3.

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Kymriah

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Jakarta

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Breyanzi
Experimenteel: Dose level 1 : E7777 at 9 mcg/kg

Single dose of E7777 given on Day -7 two days prior to the start of lymphodepleting chemotherapy

E7777 is a recombinant fusion toxin consisting of full-length human IL-2 fused to the catalytic domains of diphtheria toxin. E7777 is preferentially bound to and internalized by cells expressing the high affinity form (CD25+) of the IL-2 receptor.

Fludarabine 25 mg/m2 IV daily for 3 days. Days -5, -4 and -3. Taken in combination with Cyclophosphamide

Cyclophosphamide 250 mg/m2 IV daily for 3 days starting with the first dose of fludarabine. Days -5, -4 and -3.

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Kymriah

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Jakarta

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Breyanzi
Experimenteel: MTD from phase 1

Single dose of E7777 (Maximum tolerated dose level identified in phase 1) given on Day -7 two days prior to the start of lymphodepleting chemotherapy

E7777 is a recombinant fusion toxin consisting of full-length human IL-2 fused to the catalytic domains of diphtheria toxin. E7777 is preferentially bound to and internalized by cells expressing the high affinity form (CD25+) of the IL-2 receptor.

Fludarabine 25 mg/m2 IV daily for 3 days. Days -5, -4 and -3. Taken in combination with Cyclophosphamide

Cyclophosphamide 250 mg/m2 IV daily for 3 days starting with the first dose of fludarabine. Days -5, -4 and -3.

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Kymriah

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Jakarta

Patient will receive one FDA approved CAR-T product - Tisagenlecleucel/Kymriah, Axicabtagene Ciloleucel/Yescarta, or lisocabtagene maraleucel/Breyanzi) for the treatment of relapsed/refractory diffuse large B-cell lymphoma

Andere namen:
  • Breyanzi

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Establish maximum tolerated dose (MTD)
Tijdsspanne: 1 month

The primary objective of this Phase I study is to establish a maximum tolerated dose (MTD) of E7777 when given prior to standard of care CAR-T therapy product for the treatment of relapsed/refractory B-cell lymphoma who are at a higher risk for failure of CAR-T therapy.

1 month

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Number of participants experiencing adverse events
Tijdsspanne: 100 days Post E7777 infusion

Number of participants experiencing adverse events related to E7777 to determine safety of the E7777

100 days Post E7777 infusion
Number of participants experiencing disease free survival (DFS)
Tijdsspanne: 1 year Post E7777 infusion

Number of participants experiencing disease free survival (DFS) at 1 year

1 year Post E7777 infusion
Number of participants experiencing overall survival (OS)
Tijdsspanne: 1 year Post E7777 infusion

Number of participants experiencing overall survival (DFS) at 1 year

1 year Post E7777 infusion
Number of non-relapse mortality incidents at day 100
Tijdsspanne: 100 days Post E7777 infusion

Number of participants experiencing non-relapse mortality at day 100 post E7777 infusion

100 days Post E7777 infusion
Number of Grade 3 or 4 cytokine release syndrome (CRS) incidents
Tijdsspanne: 28 Days Post E7777 infusion

Number of participants experiencing Grade 3 or 4 cytokine release syndrome (CRS) after CAR-T cell therapy.

28 Days Post E7777 infusion
Number of Grade 3 or 4 immune effector cell associated neurotoxicity (ICAN) syndrome incidents
Tijdsspanne: 28 Days Post E7777 infusion

Number of participants experiencing Grade 3 or 4 immune effector cell associated neurotoxicity (ICAN) syndrome after CAR-T cell therapy.

28 Days Post E7777 infusion
Number of participants experiencing dose limiting toxicity events
Tijdsspanne: 28 Days Post E7777 infusion

Dose Limiting Toxicity (DLT) is defined as any of the following events based on CTCAE v5 from the 1st infusion of E7777 through 21 days after the administration of CAR-T:

  • Grade 4 infusion related reaction (IRR) associated with E7777
  • Grade 4 or Grade 3 capillary leak syndrome (CLS)
  • Grade 3 or 4 liver function test abnormality that do not resolve to <Grade 2 within 5 days
  • Grade 3 or 4 non-hematologic toxicity event that occurs after the administration of E7777 and before lymphodepleting therapy
  • Any adverse event that results in a delay of lymphodepleting therapy for more than 72 hours and attributed to E7777
  • Any Grade 5 adverse event
28 Days Post E7777 infusion

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Onderzoekers

  • Hoofdonderzoeker: Veronika Bachanova, MD, Masonic Cancer Center, University of Minnesota

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

9 juni 2021

Primaire voltooiing (Geschat)

1 september 2027

Studie voltooiing (Geschat)

1 december 2028

Studieregistratiedata

Eerst ingediend

19 april 2021

Eerst ingediend dat voldeed aan de QC-criteria

19 april 2021

Eerst geplaatst (Werkelijk)

22 april 2021

Updates van studierecords

Laatste update geplaatst (Werkelijk)

4 november 2026

Laatste update ingediend die voldeed aan QC-criteria

2 november 2026

Laatst geverifieerd

1 november 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • 2020LS100
  • MT2020-27 (Andere identificatie: University of Minnesota Masonic Cancer Center)

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .