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Allogeneic Stem Cell Transplantation in Chronic Myeloid Leukemia Failing TKIs Therapy

3. november 2020 oppdatert av: University of Milano Bicocca

Allogeneic Haematopoietic Stem Cell Transplantation From a Matched Donor in Patients With Chronic Myeloid Leukemia Failing to Gain Normal Hemopoiesis Under TKIs Therapy

Patients newly diagnosed with chronic phase chronic myeloid leukemia undergo treatment with TK inhibitors (TKI). A possible cause of TK failure is represented by the insufficient recovery of normal Ph- hematopoiesis during TKI treatment, with consequent severe cytopenias that limit TKI adequate administration. Although rare, this event happens in a proportion of 4-5% of CML patients. Our hypothesis is to circumvent this peculiar condition by providing a normal hematopoiesis from a HLA-matched donor (Human Leukocyte Antigen). The transplant procedure is therefore intended in providing a sustained hematopoiesis that will allow an early treatment with an adequate dosing of TKI. The transplant procedure planned in our study is built on all available evidences to provide the lowest incidence of acute and chronic GvHD (Graft-versus-host disease). Therefore, a bone marrow will be the preferential source and a GvHD prophylaxis based on Anti-thrombocyte globulin (ATG) and Cyclosporine/Methotrexate will be used according to standard current experience in the field of family and unrelated donors. The pre-transplant TKI will be continued until aplasia will develop, in order to decrease the tumor load as much as possible.The use of TKIs shortly after transplant carries the risk of inhibiting the newly transplanted hematopoietic cells, as Kit, an important kinase in normal bone marrow cells, is frequently blocked by Abl inhibitors. The use of bosutinib as post-transplant therapy is justified by the lack of Kit inhibition that distinguishes bosutinib from all other TKIs, and which could allow a minimal inhibitory activity against the transplanted normal bone marrow.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

2

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Italia
    • Italy/MB
      • Monza, Italy/MB, Italia, 20900
        • Asst-Monza
    • MI
      • Milano, MI, Italia, 20132
        • Ospedale San Raffaele

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 70 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Chronic Myeloid Leukaemia -CML- in chronic phase (CP)
  2. Failure to achieve at least a Major Cytogenetic Response (MCyR) after a minimum of 18 months of TKIs treatment
  3. Inability to tolerate 3 months of uninterrupted full dose TKIs therapy due to hematological toxicity
  4. A minimum of three treatment interruptions due to hematological toxicity Availability of a HLA-identical related donor (Matched Related Donor, MRD)
  5. Availability of unrelated donor (Matched Unrelated Donor, MUD) satisfying the criteria of a 10/10 antigen match at (Human Leukocyte Antigen) HLA-A, -B, -C and - DRB1, -DQB1 at high resolution typing, or 9/10 with a permissive - DP disparity according to Fleischhauer model (Crocchiolo et al, Blood 2009)
  6. Target graft size (bone marrow):
  7. bone marrow: > 3 x 106 CD34+ cells/kg BW recipient or > 3 x 108 nucleated cells/kg BW
  8. Karnofsky Index > 80 %
  9. Age ≥18 and ≤70 years
  10. Adequate contraception in female patients of child-bearing potential
  11. Written informed consent

Exclusion Criteria:

  1. Secondary malignancies
  2. A hematopoietic cell transplantation-specific comorbidity index (Sorror et al Appendix C) > 4
  3. Known and manifested malignant involvement of the Central Nervous System (CNS)
  4. Active infectious disease
  5. Active human immunodeficiency virus (HIV), Hepatitis B virus (HBV) or Hepatitis B virus (HCV) infection
  6. Impaired liver function (Bilirubin > upper normal limit; Transaminases > 3.0 x upper normal limit)
  7. Impaired renal function (Creatinine-clearance < 60 ml/min; Serum Creatinine > 1.5 x upper normal limit).
  8. Pleural effusion or ascites > 1.0 L
  9. Pregnancy or lactation
  10. Known hypersensitivity to Busilvex and/or fludarabine 11 Non-co-operative behaviour or non-compliance 12 Psychiatric diseases or conditions that might impair the ability to give informed consent

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Bosutinib and Bone Marrow Transplant
Subjects will receive 400mg of bosutinib from day at least -45 to day -15 to assess the sensitivity of patient Chronic Myeloid Leukemia (CML) to this TKI. Patients will be transplanted with the aim to transplant > 3 x 106 CD34+ cells/kg Body Weight (BW) recipient from bone marrow or > 3 x 108 nucleated cells/kg BW recipient from bone marrow. Then, subjects will receive 400mg of bosutinib once daily from day +30 after transplant.
Legemiddel: Bosutinib
Subjects will receive 400mg of bosutinib once daily from day +30 after transplant, by mouth with food, preferably in the morning. Bosutinib will also be administered from day at least -45 to day -15 to assess the sensitivity of patient CML to this TKI.
Andre navn:
  • SKI-606
  • Bosulif
Fremgangsmåte: Bone Marrow Transplant

Samples of the unrelated stem cell graft shall be characterised with respect to the number of CD34 positive cells per kg body weight of the recipient.

The number of transplanted CD34 positive cells per kg body weight (BW) of the recipient shall be recorded in the Case Report Form (CRF). If the transplant was cryopreserved the number of viable CD34 positive cells has to be determined after thawing and documented.

The goal is to transplant > 3 x 106 CD34+ cells/kg BW recipient from bone marrow or > 3 x 108 nucleated cells/kg BW recipient from bone marrow

Legemiddel: Bone Marrow cells

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Efficacy as assessed by the percentage of patients with Complete Cytogenetic Response (CCyR)
Tidsramme: 12 months
The percentage of patients with Complete Cytogenetic Response (CCyR) will be calculated as the complement to the percentage of failures on the total number of patients treated, where failure includes the following events: no engraftment, death within 12 months, no CCyR at 12 months.
12 months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Samlet overlevelse
Tidsramme: 12 måneder
12 måneder
Percentage of patients with engraftment
Tidsramme: 12 months
12 months
percentage of patients with complete chimerism (95%)
Tidsramme: Day +28, +56 and +100
Day +28, +56 and +100
Evaluation of Major Cytogenetic Response (MCyR)
Tidsramme: 12 months
Major Cytogenetic Response (MCyR) is < 36% Ph+ metaphases
12 months
Evaluation of molecular responses
Tidsramme: 12 months

Molecular response is defined

  • Complete: if there is undetectable BCR-ABL transcript
  • Major: if ratio BCR/ABL <= 0.1% on International Scale
12 months
Relapse incidence (RI)
Tidsramme: 12 months
12 months
Incidence of non-relapse mortality (NRM)
Tidsramme: Within day +28 and +360
Within day +28 and +360
Incidence and severity of acute and chronic graft vs. host disease (GvHD)
Tidsramme: 12 months
12 months
Quality of Life (QoL)
Tidsramme: 12 months
Evaluation of QoL with EQ-5D-5L (Italian - Version 2) and FACT-Leu (Italian -Version 4)
12 months
Overall Survival (OS)
Tidsramme: 36 months
2 years after transplantation of the last patient included (this is intended to allow evaluations of all expected major molecular responses)
36 months
Progression Free Survival (PFS)
Tidsramme: 36 months
2 years after transplantation of the last patient included (this is intended to allow evaluations of all expected major molecular responses)
36 months
Relapse Incidence (RI)
Tidsramme: 36 months
2 years after transplantation of the last patient included (this is intended to allow evaluations of all expected major molecular responses)
36 months
Chronic Graft-versus-host Disease (cGvHD)
Tidsramme: 36 months
2 years after transplantation of the last patient included (this is intended to allow evaluations of all expected major molecular responses)
36 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

University of Milano Bicocca

Samarbeidspartnere

IRCCS San Raffaele

Etterforskere

  • Hovedetterforsker: CARLO GAMBACORTI-PASSERINI, MD, University of Milano Bicocca

Publikasjoner og nyttige lenker

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Generelle publikasjoner

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Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. november 2015

Primær fullføring (Faktiske)

29. november 2018

Studiet fullført (Faktiske)

1. februar 2020

Datoer for studieregistrering

Først innsendt

9. desember 2015

Først innsendt som oppfylte QC-kriteriene

22. desember 2015

Først lagt ut (Anslag)

23. desember 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

5. november 2020

Siste oppdatering sendt inn som oppfylte QC-kriteriene

3. november 2020

Sist bekreftet

1. november 2020

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • alloCML

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