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Clinical Research for Azacitidine Combined With Low-dose Dasatinib in Maintenance Therapy of Acute Myeloid Leukemia

21 de abril de 2022 actualizado por: Bei Liu, LanZhou University
This project is a prospective, single-center study to evaluate the efficacy, safety and related mechanisms of azacitidine combined with low-dose dasatinib in maintenance therapy in patients with intermediate and high-risk acute myeloid leukemia(AML). The patients were randomly divided into azacitidine group and azacitidine combined with low-dose dasatinib group. The overall survival and disease-free survival were taken as the main end points, and the mortality and recurrence rate were taken as the secondary end points, meanwhile, the incidence of adverse events were evaluated. At the same time, the mRNA expressions of DNA methyltransferase (DNMT1, DNMT3a, DNMT3b), tumor suppressor genes (TP53, P15, P16, P21, CDH1, DOK6, SHP1, PTPN11) and differentiation genes (pu.1, C/EBP α, C/EBP β) were detected. Pyrophosphate sequencing was used to detect the methylation level of the promoter region of these tumor suppressor genes. Western Blot was used to detect apoptosis proteins (caspase3, caspase8) and phosphorylated proteins (pSTAT3, pSTAT5, pAKT). The proportion of apoptotic population of bone marrow cells was determined by flow cytometry. Therefore, the data in this study will reflect the efficacy and safety of azacitidine or azacitidine combined with low-dose dasatinib in real-world maintenance therapy in patients with medium and high-risk AML.

Descripción general del estudio

Estado

Reclutamiento

Intervención / Tratamiento

Descripción detallada

In addition to studying the overall survival, disease-free survival and recurrence rates, mortality and incidence of adverse events of patients treated with azacitidine or azacitidine combined with low-dose dasatinib, we will also study its related mechanisms. One of the pathogenesis of AML is that abnormal DNA methylation makes the cell cycle out of control and carcinogenesis by inhibiting the expression of tumor suppressor genes. In addition, the abnormal activation of tyrosine kinase signal pathway also promotes the development of leukemia. Azacitidine, the hypomethylating agents, can not only inhibit the DNA methyltransferase family, but also activate tumor suppressor genes to inhibit a variety of tyrosine kinase signaling pathways, including JAK-STAT. NaShen et al have directly demonstrated that tyrosine kinase inhibitors (TKIs) can not only inhibit the abnormal activation of tyrosine kinase pathway, but also reduce DNA methylation. This study found that the combination of the second generation TKIs and hypomethylating agents can reduce has a synergistic effect on promoting apoptosis and reducing DNA methylation. In addition, TKIs often produces drug resistance due to long exposure time, and the main mechanisms of drug resistance is due to DNA methylation and abnormal reactivation of tyrosine kinase signal pathway. The combination of TKI and azacitidine reduces DNA methylation and inhibits the reactivation of abnormal tyrosine kinase signal pathway, which is helpful to improve TKI drug resistance. Based on the above theory, we assume that patients treated with azacitidine and dasatinib may have more obvious demethylation effect, increased expression of tumor suppressive genes, more obvious apoptosis, and inhibition of phosphorylated protein expression.So we did the lab tests of these mechanisms.We innovatively used azacitidine and TKIs in the treatment of patients with AML maintenance, in order to reduce drug toxicity, enhance drug efficacy, improve patient prognosis and reduce the financial burden of patients.

Tipo de estudio

Intervencionista

Inscripción (Anticipado)

30

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Long Zhao
  • Número de teléfono: +18919128021
  • Correo electrónico: dragonzhao@126.com

Ubicaciones de estudio

    • Gansu
      • Lanzhou, Gansu, Porcelana, 730000
        • Reclutamiento
        • The First Hospital of Lanzhou University
        • Sub-Investigador:
          • Long Zhao
        • Sub-Investigador:
          • Haizhen Ma
        • Sub-Investigador:
          • Juan Cheng, MD
        • Contacto:
        • Investigador principal:
          • Bei Liu, MD
        • Sub-Investigador:
          • Jinli Jian
        • Sub-Investigador:
          • Hao Zhang

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  1. Patients with intermediate and high-risk AML who are diagnosed according to the 2016 WHO guidelines, aged ≥18 years;
  2. Detect minimal residual disease(-) after induction therapy and consolidation therapy;
  3. Eastern Cooperative Oncology Group (ECOG) performance status score 0-2;
  4. The heart, pulmonary, liver and kidneys have sufficient organ functions:

    1. Cardiac color doppler ultrasound shows cardiac ejection fraction> 50%, heart function classification NYHA III/IV, no heart block or arrhythmia;
    2. Patients without severe restrictive/obstructive pulmonary disease;
    3. Liver function: total bilirubin (TBIL) < 2 times the upper limit of normal, alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) <2.5 times the upper limit of normal;
    4. Renal function: serum creatinine (Cr) < 1.5 times the upper limit of normal.
  5. The patient and family members agree and sign an informed consent form.

Exclusion Criteria:

  1. Patients with malignant tumors of other organs;
  2. HCV positive; or HIV positive; or one of the following HBV test results:

    1. HBsAg positive;
    2. HBsAg negative, HBcAb positive and HBV DNA titer positive;
  3. Pregnant and lactating women, and patients who have family planning during the enrollment period;
  4. Patients considered to be unsuitable for enrollment by the investigator.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: experimental group
Patients with intermediate and high risk AML were negative for minimal residual disease after intensive induction and consolidation chemotherapy,the patients were randomly divided into two groups, and one group was given azacitidine(75mg/m2, per day on day 1-7]. Dasatinib 100 mg p.o. qd was administered on days 1-28 of each consolidation cycle.
Azacitidine, 75mg/m2,d1-7;Treatment cycles every 28 days
dasatinib,20mg,po,qd,treatment cycles every 28 days
Comparador activo: control group
Patients with intermediate and high risk AML were negative for minimal residual disease after intensive induction and consolidation chemotherapy,the patients were randomly divided into two groups, and the other group was given azacitidine(75mg/m2, per day on day 1-7)on days 1-28 of each consolidation cycle.
Azacitidine, 75mg/m2,d1-7;Treatment cycles every 28 days

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
overall survival
Periodo de tiempo: up to 30 months.
OS is defined as the time from the date of enrollment until the date of death from any cause.
up to 30 months.
disease-free survival
Periodo de tiempo: up to 30 months.
Event-free survival is defined as the time from enrollment until documented refractory disease, relapse after complete remission(CR) or CR with incomplete recovery of blood counts(CRi), or death from any cause.
up to 30 months.

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
mortality
Periodo de tiempo: mortality rate at 30 months.
The proportion of patients from enrollment to death was recorded.
mortality rate at 30 months.
recurrence rate
Periodo de tiempo: recurrence rate at 30 months.
Record the proportion of patients with recurrence in the study.
recurrence rate at 30 months.
adverse events
Periodo de tiempo: Adverse events were assessed weekly during the first and second cycles, and every two cycles thereafter (each cycle is 28 days), up to 30 months.
Number of participants with treatment-related adverse events as assessed by CTCAE v5.0.
Adverse events were assessed weekly during the first and second cycles, and every two cycles thereafter (each cycle is 28 days), up to 30 months.
apoptotic protein and phosphorylated protein
Periodo de tiempo: once before enrollment and once after the completion of the study, up to 30 months.
The relative expression of apoptotic protein(caspase3, caspase8) and phosphorylated protein(pSTAT3, pSTAT5, pAKT) were detected by western blot with bone marrow aspirate.
once before enrollment and once after the completion of the study, up to 30 months.
DNA methyltransferase, tumor suppressor genes and differentiation genes
Periodo de tiempo: once before enrollment and once after the completion of the study, up to 30 months.
To detect the mRNA expression of DNA methyltransferase(DNMT1, DNMT3a, DNMT3b), tumor suppressor genes(TP53,P15, P16, P21, CDH1, DOK6, SHP1, PTPN11) and differentiation gene(pu.1, C/EBPα, C/EBPβ) with bone marrow aspirate by Q-PCR.
once before enrollment and once after the completion of the study, up to 30 months.
methylation level in the promoter region of some tumor suppressor genes.
Periodo de tiempo: once before enrollment and once after the completion of the study, up to 30 months.
Detection of methylation level in the promoter region of the above tumor suppressor genes by pyrophosphate sequencing using patient bone marrow aspirate.
once before enrollment and once after the completion of the study, up to 30 months.
Percentage of bone marrow cell apoptosis population
Periodo de tiempo: once before enrollment and once after the completion of the study, up to 30 months.
The percentage of apoptotic population of bone marrow cells was determined by flow cytometry.
once before enrollment and once after the completion of the study, up to 30 months.

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Publicaciones y enlaces útiles

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Publicaciones Generales

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

13 de noviembre de 2021

Finalización primaria (Anticipado)

1 de septiembre de 2023

Finalización del estudio (Anticipado)

15 de diciembre de 2023

Fechas de registro del estudio

Enviado por primera vez

1 de septiembre de 2021

Primero enviado que cumplió con los criterios de control de calidad

6 de septiembre de 2021

Publicado por primera vez (Actual)

13 de septiembre de 2021

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

25 de abril de 2022

Última actualización enviada que cumplió con los criterios de control de calidad

21 de abril de 2022

Última verificación

1 de abril de 2022

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

After the completion of the clinical trial, we will choose whether to disclose the result according to the relevant regulations of the Chinese Genetic Office.

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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