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Duvelisib efter kimærisk antigenreceptor T-celleterapi

20. september 2026 opdateret af: Washington University School of Medicine

Fase I dosiseskalering og dosisudvidelsesundersøgelse af Duvelisib efter kimærisk antigenreceptor T-celleterapi

While chimeric antigen receptor T-cell (CAR T-cell) therapy produces impressive response rates in heavily pre-treated patients, early loss of response remains a barrier. One potential mechanism of relapse is limited CAR T-cell persistence. Pre-clinical research shows that PI3K inhibition represents an intriguing mechanism for increasing CAR T-cell persistence that is easily reversible and CAR T-cell agnostic. The investigators hypothesize that PI3K inhibition with duvelisib would be safe, may provide effective prophylaxis against cytokine release syndrome (CRS), and may enhance the persistence and efficacy of CAR T-cells in the treatment of hematologic malignancies.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

42

Fase

  • Fase 1

Kontakter og lokationer

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

Studiesteder

    • Missouri
      • St Louis, Missouri, Forenede Stater, 63110
        • Washington University School of Medicine

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 og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Meets FDA-approved criteria for treatment of non-Hodgkin lymphoma (NHL) with axicabtagene ciloleucel (Yescarta), tisagenlecleucel (Kymriah), lisocabtagene maraleucel (Breyanzi) or brexucabtagene autoleucel (Tecartus). Subjects receiving breuxacabtagene autoleucel for treatment of B-cell acute lymphoblastic leukemia (ALL) are not eligible.
  • At least 18 years of age.
  • The effects of duvelisib on the developing human fetus are unknown. For this reason, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry, for the duration of study participation, and for at least 3 months after the last dose of duvelisib, as well as conform to institutional CAR T-cell guidelines. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of the study, and for at least 3 months after the last dose of duvelisib.
  • Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).

Exclusion Criteria:

  • Receiving axicabtagene ciloleucel, tisagenlecleucel, lisocabtagene maraleucel, or brexucabtagene autoleucel for the treatment of B-cell acute lymphoblastic leukemia.
  • Known allergy or intolerance to duvelisib or another PI3K inhibitor. Previous treatment with duvelisib or other PI3K inhibitor is permitted unless therapy was discontinued due to toxicity or intolerance of therapy.
  • Receiving therapy with a strong CYP3A inducer or inhibitor that cannot be discontinued during duvelisib therapy. Subjects receiving a strong CYP3A inducer or inhibitor at screening are eligible to participate if the drug can be discontinued the longest of the following time periods prior to initiation of duvelisib: 7 days (for strong CYP3A inhibitors), 14 days (for strong CYP3A inducers) or 4-5 half-lives (either inducer or inhibitor).
  • Active CNS involvement by hematologic malignancy under treatment
  • Evidence of uncontrolled infection of any origin (viral, bacterial, or fungal)
  • Active bacterial, fungal or mycobacterial infection tuberculosis requiring treatment within the two years prior to study enrollment
  • Known HIV infection, untreated hepatitis C or hepatitis B infection. Untreated hepatitis B is not an exclusion if hepatitis B is undetectable.
  • Acute or chronic GVHD requiring systemic therapy
  • Concurrent use of chronic systemic steroids or immunosuppressant medications
  • Known history of immunologic/autoimmune disease affecting the CNS unrelated to diagnosis of hematologic malignancy under treatment
  • Clinically significant pulmonary disease, defined as grade 2 or greater dyspnea or grade 2 or greater hypoxia
  • Clinically significant cardiac disease, defined as unstable angina, acute myocardial infarction in the last 6 months, and NYHA class II or IV heart failure. Subjects with unstable arrhythmias that are not stable with medical management in 2 weeks prior to day -2 are also excluded.
  • Clinically significant hepatic disease, defined as ALT, AST or alkaline phosphatase ≥ 3x ULN or total bilirubin > 1.5x ULN (unless related to Gilbert's or Meulengracht's syndrome). Subjects with a history of chronic liver disease, previous veno-occlusive disease, active alcohol abuse or history of alcohol abuse within the past 6 months are also excluded.
  • Clinically significant renal disease, defined as calculated or measured creatinine clearance < 50 mL/min
  • Currently breastfeeding or pregnant. Women of childbearing potential must have a negative pregnancy test within 7 days of study entry.
  • Inability to swallow and retain oral medication or prior surgery or GI dysfunction that may affect drug absorption (i.e. gastric bypass surgery, gastrectomy)
  • Receipt of a prior investigational agent within 4 weeks before Day -3 or currently receiving any other investigational agents.
  • Unable to receive prophylactic treatment for pneumocystis, HSV or VZV at screening
  • Any condition that would, in the investigator's judgment, interfere with full participation in the study, including administration of medication, attendance of study visits, elevated risk of complications or interference with interpretation of the study data
  • A history of other malignancy with the exception of malignancies for which all treatment was completed at least 2 years before registration and the patient has no evidence of disease. Non-metastatic, non-melanoma skin cancers are not considered exclusionary.

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: Ikke-randomiseret
  • Interventionel model: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Dose Escalation Dose Level 1: Duvelisib (15mg)
  • Patients will receive 15 mg of Duvelisib orally twice a day from Day -2 through Day 28 for 1 cycle
  • CAR T-cells will be given per standard of care.

Patients should take duvelisib at approximately the same time every day, with or without food.

CAR T-cells will be given per standard of care.

Eksperimentel: Dose Escalation Dose Level 2: Duvelisib (25mg)
  • Patients will receive 25 mg of Duvelisib orally twice a day from Day -2 through Day 28 for 1 cycle
  • CAR T-cells will be given per standard of care.

Patients should take duvelisib at approximately the same time every day, with or without food.

CAR T-cells will be given per standard of care.

Eksperimentel: Dose Expansion Cohort A: Duvelisib (25mg)
  • Patients in Cohort A will receive 25 mg (dose determined in dose escalation) duvelisib orally from Day -2 to Day 28 for 1 cycle.
  • CAR T-cells will be given per standard of care.

Patients should take duvelisib at approximately the same time every day, with or without food.

CAR T-cells will be given per standard of care.

Eksperimentel: Dose Expansion Cohort B: Duvelisib (25mg)
  • Patients in Cohort B will receive 25mg (dose determined in dose escalation) duvelisib orally from Day -2 to Day 180 as follows:

    • Cycle 1 dosing begins on Day -2 and continues through Day 28 followed by 2 weeks off therapy
    • Cycles 2-6 are 28 days long and consist of dosing on Days 1 through 14, with 2 weeks off therapy.
  • CAR T-cells will be given per standard of care.

Patients should take duvelisib at approximately the same time every day, with or without food.

CAR T-cells will be given per standard of care.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Toxicity as measured by number of adverse events
Tidsramme: From start of treatment through 30 days after completion of duvelisib (up to day 60 for Cohort A and up to day 212 for Cohort B)

Toxicity is graded using NCI CTCAE v 5.0

From start of treatment through 30 days after completion of duvelisib (up to day 60 for Cohort A and up to day 212 for Cohort B)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Antal deltagere, der modtager anti-IL-6-midler til behandling af cytokinfrigivelsessyndrom (CRS)
Tidsramme: Gennem afslutning af opfølgning (estimeret til at være 6 måneder)
Gennem afslutning af opfølgning (estimeret til at være 6 måneder)
Antal deltagere, der modtager steroider til behandling af cytokinfrigivelsessyndrom (CRS)
Tidsramme: Gennem afslutning af opfølgning (estimeret til at være 6 måneder)
Gennem afslutning af opfølgning (estimeret til at være 6 måneder)
Andel af deltagere med delvis respons (PR) på dag 30 med forbedret respons på dag 90
Tidsramme: Dag 90
Dag 90
Andel af deltagere med delvis respons (PR) på dag 30 med forbedret respons på dag 180
Tidsramme: Dag 180
Dag 180
Progressionsfri overlevelse (PFS)
Tidsramme: Gennem afslutning af opfølgning (estimeret til at være 5 år)
Gennem afslutning af opfølgning (estimeret til at være 5 år)
Samlet overlevelse (OS)
Tidsramme: Gennem afslutning af opfølgning (estimeret til at være 5 år)
Gennem afslutning af opfølgning (estimeret til at være 5 år)
Antal deltagere med fuldstændigt svar (CR)
Tidsramme: Ved 1 måned
Ved 1 måned
Antal deltagere med fuldstændigt svar (CR)
Tidsramme: Ved 3 måneder
Ved 3 måneder
Antal deltagere med fuldstændigt svar (CR)
Tidsramme: Ved 6 måneder
Ved 6 måneder
Cumulative incidence of cytokine release syndrome (CRS)
Tidsramme: By Day 28

-Any and grade 3-4 per ASTCT criteria

By Day 28
Cumulative incidence of immune effector cell-associated neurotoxicity syndrome (ICANS)
Tidsramme: By Day 28

-Any and grade 3-4 per ASCT criteria

By Day 28
Best overall response rate
Tidsramme: At 1 month

-Defined as proportion of subjects with complete response (CR) or partial response (PR) by Lugano criteria

At 1 month
Best overall response rate
Tidsramme: At 3 months

-Defined as proportion of subjects with complete response (CR) or partial response (PR) by Lugano criteria

At 3 months
Best overall response rate
Tidsramme: At 6 months

-Defined as proportion of subjects with complete response (CR) or partial response (PR) by Lugano criteria

At 6 months

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Armin Ghobadi, M.D., Washington University School of Medicine

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

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 (Faktiske)

28. februar 2022

Primær færdiggørelse (Faktiske)

6. januar 2026

Studieafslutning (Anslået)

22. maj 2030

Datoer for studieregistrering

Først indsendt

3. september 2021

Først indsendt, der opfyldte QC-kriterier

3. september 2021

Først opslået (Faktiske)

14. september 2021

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

24. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

20. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 202111018

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

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