FLT3-ITD Gene Mutation and CD135 Expression in Acute Myeloid Leukemia.

Acute Myeloid Leukemia Clinical Trial

Official title:

Assessment of Association Between FLT3-ITD Gene Mutation and CD135 Expression and Their Correlation With Hematological,Immunophenotypic and Biochemical Characteristics in Acute Myeloid Leukemia.

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT05383014
• Other study ID #: FLT3-ITD and CD135 in AML
• Status: Not yet recruiting
• Start date: June 1, 2022
• Est. completion date: July 1, 2024

Study information

• Verified date: May 2022
• Source: Assiut University
• Contact: Shaimaa Abdelazeem Selim, Assist. lecturer
• Phone: 01006214247
• Email: Shaimaaselim95[@]gmail.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

1. To evaluate expression levels of CD135 2. To assess the frequency of FLT3 gene mutations (ITD) 3. association between FLT3-ITD mutation and CD135 expression and their correlation with hematological, immunophenotypic,and biochemical features.

Description:

Acute leukemias are clonal malignant diseases of immature hematopoietic system ,characterized by clonal evolution and considerable genetic, epigenetic, and phenotypic heterogeneity,and constitute a common cause of morbidity and mortality worldwide.[1] Gene expression profiling has improved the molecular classification and prognosis of Acute leukemias, where molecular testing has become mandatory for further classify into prognostic groups. Among the genetic aberrations, alterations of the FMS-like tyrosine kinase 3 (FLT3) gene. [2] FLT3 is a type 3 receptor tyrosine kinase that plays an important role in the expansion and proliferation of multi-potent progenitor cells within the bone marrow.[3] mutations of FLT3 induce a constitutional activation of tyrosine kinases and several downstream targets resulting in proliferation and growth of malignant cells ,myeloproliferative phenotype , high tumor burden,and a characteristic hematological , immunophenotypic and biochemical profile that can be identified during routine diagnostic workup.[4]Two mutations exist in these cells: FLT3-ITD (internal tandem duplication), and FLT3-TKD, a point mutation in the tyrosine kinase domain.[5] FLT3-ITD is a common driver mutation, seen with a frequency of 20 to 30% ,and significantly affecting the pathogenesis and the clinical outcome . Genetic testing for FLT3-ITD mutation at diagnosis is done to risk stratify patients and to guide therapeutic decisions.[6-8] FLT3 receptor/CD135 is a transmembrane tyrosine kinase receptor, normally expressed on the surface of hematopoietic stem cells and is lost upon cell differentiation , activation of the receptor resulting in stimulating survival and proliferation, and inhibiting apoptosis of progenitor cells . Overexpression of the FLT3 receptor has been reported to be associated with high risk for relapse in patients with acute leukemia .[2]

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 82
• Est. completion date: July 1, 2024
• Est. primary completion date: June 1, 2024
• Gender: All
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• Newly diagnosed Patients with acute myeloid leukemia (AML), who fullfill the WHO criteria.

Exclusion Criteria:

• AML on top of myeloproliferative neoplasms or MDS.
• previously diagnosed AML on treatment
• Patients with any other type of malignant tumors

Related Conditions & MeSH terms

• Acute Myeloid Leukemia
• Leukemia
• Leukemia, Myeloid
• Leukemia, Myeloid, Acute

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Assiut University

References & Publications (6)

Ambinder AJ, Levis M. Potential targeting of FLT3 acute myeloid leukemia. Haematologica. 2021 Mar 1;106(3):671-681. doi: 10.3324/haematol.2019.240754. Review. — View Citation

Daver N, Schlenk RF, Russell NH, Levis MJ. Targeting FLT3 mutations in AML: review of current knowledge and evidence. Leukemia. 2019 Feb;33(2):299-312. doi: 10.1038/s41375-018-0357-9. Epub 2019 Jan 16. Review. — View Citation

Gilliland DG, Griffin JD. The roles of FLT3 in hematopoiesis and leukemia. Blood. 2002 Sep 1;100(5):1532-42. Review. — View Citation

Juliusson G, Jädersten M, Deneberg S, Lehmann S, Möllgård L, Wennström L, Antunovic P, Cammenga J, Lorenz F, Ölander E, Lazarevic VL, Höglund M. The prognostic impact of FLT3-ITD and NPM1 mutation in adult AML is age-dependent in the population-based setting. Blood Adv. 2020 Mar 24;4(6):1094-1101. doi: 10.1182/bloodadvances.2019001335. — View Citation

Khera R, Ahmed F, Mundada M, Nambaru L, Murthy SS, Devig S, Rajappa SJ, Mallavarapu KM, Santa A, Kumar P. Acute Myeloid Leukaemia with Gene Mutation: A Correlation with Haematological and Immunophenotypic Characteristics and Our Experience in a Tertiary Care Cancer Center in South India. Turk Patoloji Derg. 2018;34(2):171-174. doi: 10.5146/tjpath.2017.01415. — View Citation

Vela-Ojeda J, Cardenas PV, Garcia-Ruiz Esparza MA, Montiel Cervantes LA, Chavez JG, Caballero AH, Majluf-Cruz A, Vega-López A, Reyes-Maldonado E. FLT3-ITD and CD135 Over-Expression are Frequent Findings of Poor Survival in Adult Patients with Acute Leukemias. Arch Med Res. 2021 Feb;52(2):217-223. doi: 10.1016/j.arcmed.2020.10.013. Epub 2020 Oct 24. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Correlation between FLT3 gene mutation and the expression of CD135 and their association with clinical outcome ,haematological, immunophenotypic , biochemical characteristics in the development and progression of AML.	analysis of association between FLT3 gene mutation and the level of expression of CD135 and analysis of clinical outcome , hematological,and immunophenotypic characteristics between patients with positive FLT3-ITD mutation and negatine patients	baseline
Secondary	To detect expression levels of CD135 and the frequency of FLT3- ITD gene mutations in the development and progression of AML -follow up of patient after induction of chemotherapy		baseline