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RecruitingNCT04546945Updated Mar 18, 2026

Aberrant Expression of CD56 in Patients With Hematologic Malignancies.

An observational study in Hematologic Malignancies, sponsored by Asmaa Hassan mohamed Abdel Mawjoud. Recruiting at 2 sites in Egypt. Per ClinicalTrials.gov, last updated 2026-03-18.

Sponsored by Asmaa Hassan mohamed Abdel Mawjoud · Observational

Study type
Observational
Model
Case-control
Time perspective
Cross-sectional
Enrollment
38
Sex
All
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Study summary

CD56(cluster of differentiation 56) was found to be ectopically expressed in multiple myeloma . A met analysis indicated that CD56 over expression may be an adverse prognostic factor in AML. To the best of our knowledge, no available data the expression pattern of CD56 in other Hematologic malignancies. This work is designed to evaluate the expression pattern of CD56 in hematologic malignancies.

Read the detailed description

CD56 is the archetypal phenotypic marker of natural killer cells but can actually be expressed by many more immune cells, including alpha, beta T cells, gamma, delta T cells, dendritic cells, and monocytes. Common to all these CD56 expressing cell types have strong immunostimulatory effector functions, including T helper 1 cytokine production and an efficient cytotoxic capacity. Interestingly, both numerical , functional deficiencies and phenotypic alterations of the CD56 immune cell fraction have been reported in patients with various infectious, autoimmune, or malignant diseases.CD56 is also known as neural cell adhesion molecule (NCAM).

Hematologic malignancies are a heterogeneous group of diseases of diverse incidence, prognosis and etiology that arise from malignant transformation of cells from the bone marrow or the lymphatic system.There are two major groups of Hematologic malignancies according to their cell lineage: Myeloid and lymphoid. Lymphoid neoplasms are a varied group that includes non-Hodgkin lymphoma (NHL), Hodgkin lymphoma (HL), leukemia and multiple myeloma (MM).myeloid neoplasms and acute leukaemia include: Myeloproliferative neoplasms (MPN), Myelodysplastic/myeloproliferative neoplasms (MDS/MPN), Myelodysplastic syndromes (MDS), Acute myeloid leukaemia (AML), Acute leukemias of ambiguous lineage, B-lymphoblastic leukaemia/lymphoma, T-lymphoblastic leukaemia/lymphoma.The exact causes of Hematologic malignancies are still unknown although multiple epidemiological studies have reported an association between the development of Hematologic malignancies and several risk factors. Some factors are well documented to increase the risk of some types of leukaemia such as benzene exposure and ionizing radiation.However, many other factors were observed to have an association with Hematologic malignancies such as age, gender, tobacco smoking , obesity , hepatitis C virus (HCV) infection , family history , and environmental exposure to pesticides but with no clear evidence.

CD56 was found to be ectopically expressed in multiple myeloma. A met analysis indicated that CD56 over expression may be an adverse prognostic factor in AML. To the best of our knowledge, no available data the expression pattern of CD56 in other Hematologic malignancies. This work is designed to evaluate the expression pattern of CD56 in hematologic malignancies.

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Conditions studied

  • Hematologic Malignancies
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In context

Hematologic Neoplasms

1,464 studies on the registry are indexed under Hematologic Neoplasms; 432 are open to participants now.

This study's planned enrollment of 38 is below the median of 182 across 325 observational studies indexed under Hematologic Neoplasms.

Browse Hematologic Neoplasms studies →

Lead sponsor

Asmaa Hassan mohamed Abdel Mawjoud is the lead sponsor of 2 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients with hematologic malignancies Newly diagnosed

Inclusion criteria

  • Patients with hematologic malignancies.
  • Newly diagnosed

Exclusion criteria

Exclusion Criteria:

  • Patients with hematologic disorders other than hematologic malignancies.
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Study design

Observational model
Case-control
Time perspective
Cross-sectional
Enrollment
38 participants (estimated)
Target follow-up
12 Months
Patient registry
Yes

Groups and cohorts

  • control cases

    normal healthy person

    Diagnostic Test: CD56

  • Patients

    Patients with hematologic malignancies. Newly diagnosed.

    Diagnostic Test: CD56

Interventions

  • Diagnostic testCD56

    detection of CD56 by flow cytometry

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What researchers measure

Primary outcomes

  1. To identify the Pattern of expression of CD56 in hematologic malignancies.

    Expression of aberrant CD56 in hematologic malignancies by flowcytometry. To explore incidence of Expression of aberrant CD56 in hematologic malignancies . Correlation between this expression and outcome of the patient.

    Time frame: 1 years

07

Study locations

1 of 2 sites recruiting
  • Assiut University
    Asyut, Egypt
    Completed
  • Assiut university
    Asyut, Egypt
    • Assiut · Contact
    Recruiting
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References and documents

Related links

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04546945
Lead sponsor
Asmaa Hassan mohamed Abdel Mawjoud
Responsible party
Asmaa Hassan mohamed Abdel Mawjoud (resident doctor clinical pathology, Assiut University) — Sponsor-investigator
First posted
Sep 14, 2020
Start date
Mar 20, 2027 (estimated)
Primary completion
Jun 30, 2027 (estimated)
Completion
Dec 30, 2027 (estimated)
Last update
Mar 18, 2026

Study contacts

asmaa H mohamed, R.DR
Contact
a94asmaa@gmail.com
+201024850070
Dina A Mohareb, a.prof
Contact
dinamhreb@icloud.com
+201062427707
Maged S Mahmoud, prof
study director · Assiut University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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