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Chronic Lymphocytic LeukemiaNCT03150849

C-X-C Chemokine Receptor 4 in Chronic Lymphocytic Leukemia

An observational study of Chronic Lymphocytic Leukemia, run by Assiut University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Chronic lymphocytic leukemia is the most common type of chronic leukemia, accounting for approximately 40% of all leukemias and mainly affecting older individuals. As it has a highly variable clinical course, identification of molecular and biological prognostic markers has provided new insights into the risk… Read more about this study

Who is it for?
Ages 20 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Chronic Lymphocytic Leukemia
What is being tested?
C-X-C Chemokine Receptor 4
How many people
50 participants
Where
No sites listed yet
Study dates
1 Jul 2017to 1 Dec 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: From Hematology clinic with chronic lynphocytic leukemia

Who may be able to join

  • All patients are newly diagnosed as chronic lymphocytic leukemia

Who cannot join

  • Patients with associated malignancies.
  • Chronic lymphocytic leukemia patients on chemotherapy

Trial locations and contacts

No sites are listed yet.

Eman mohamed salah, MD contact

01028030966

Emansalah.eldin@yahoo.com

About this study

Official title: C-X-C Chemokine Receptor 4 as Prognostic Marker in Chronic Lymphocytic Leukemia

Chronic lymphocytic leukemia is the most common type of chronic leukemia, accounting for approximately 40% of all leukemias and mainly affecting older individuals. As it has a highly variable clinical course, identification of molecular and biological prognostic markers has provided new insights into the risk stratification of patients with chronic lymphocytic leukemia.

Read the detailed description

Prognosis depends primarily on the stage of the disease at diagnosis. There is a correlation between disease stage and median survival. However, about 50% of patients in early stage will develop more advanced disease. Also there is marked variation in disease progression amongst patients with similar Stages .

Extreme clinical heterogeneity is one of the hallmark features of chronic lymphocytic leukemia despite the identification of genetic and phenotypic markers that correlate with prognosis, the biological basis of this clinical variability remains unclear .. In addition, the interactions of chronic lymphocytic leukemia cells with the microenvironment in secondary lymphoid tissues and the bone marrow are known to promote chronic lymphocytic leukemia cell survival and proliferation.

The median age at diagnosis is 72 years, in the last decades chronic lymphocytic leukemia is more often diagnosed also in younger individuals, with almost 15% Of patients Of 55 years old or younger. There is a gender predisposition, As men are more frequently affected by chronic lymphocytic leukemia than women (male: female ratio of 1.5-2:1).

C-X-C chemokine receptor type 4 (CXCR4) is a chemokine and chemokine receptor pair playing critical roles in tumorigenesis. Overexpression of C-X-C chemokine receptor type 4 is a hallmark of many hematological malignancies including acute myeloid leukemia, chronic lymphocytic leukemia and non-Hodgkin's lymphoma, and generally correlates with a poor prognosis. A highly potent competitive antagonist of C-X-C chemokine receptor type 4 recently has been identified with suppression of cancer cells aggressiveness in a variety of cancers.

The protein-coupled receptor C-X-C chemokine receptor type 4 is activated by stromal cell-derived factor 1 and is involved in the control of migration and homing of cells notably for engraftment of normal and neoplastic hematopoietic cells in the bone marrow (BM).

Bruton's tyrosine kinase (BTK) is a key player in B-cell antigen receptor (BCR) signaling that regulates B-cell growth. In addition to B-cell antigen receptor signaling, Bruton's tyrosine kinase participates in signal transduction through growth-factor receptors, Toll-like receptors, integrins and G-protein-coupled receptors such as C-X-C chemokine receptor type 4 and C-X-C chemokine receptor type 5. Bruton's tyrosine kinase inhibition results in impaired C-X-C chemokine receptor type 4 chemokine receptor surface expression, signaling and function in chronic lymphocytic leukemia. inhibition of Bruton's tyrosine kinase function would lead to a loss of tumor volume by preventing replenishment after spontaneous or drug-induced death, and by subverting leukemia cell retention in and homing back to sustaining tissue niches. Decrease C-X-C chemokine receptor type 4 delays disease progression and prolongs survival

Being tested
C-X-C Chemokine Receptor 4
Medical subject headings
Leukemia, Lymphocytic, Chronic, B-Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • C-X-C Chemokine Receptor 4Diagnostic test

    marker assessed by flowcytometry in a blood sample

Study groups in NCT03150849
Study groupRoleWhat they receive
patient grouppatient with chronic lymphocytic leukemia
Receives: Diagnostic Test: C-X-C Chemokine Receptor 4
control grouphealthy control group
Receives: Diagnostic Test: C-X-C Chemokine Receptor 4

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The level of C-X-C Chemokine Receptor 4 in chronic lymphocytic leukemia patient and healthy individual

    the level of C-X-C Chemokine Receptor 4 marker assessed by flowcytometry in a blood sample

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 May 2017
  2. Study start1 Jul 2017 (estimated)
  3. Primary completion1 Jul 2019 (estimated)
  4. Study completion1 Dec 2019 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03150849
Sponsor's protocol ID
cxcll
Status last verified
May 2017
First submitted
7 May 2017
Last updated
12 May 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Palmesino E, Moepps B, Gierschik P, Thelen M. Differences in CXCR4-mediated signaling in B cells. Immunobiology. 2006;211(5):377-89. doi: 10.1016/j.imbio.2005.12.003. Epub 2006 Apr 18.

    PubMed 16716807
  • Burger JA, Peled A. CXCR4 antagonists: targeting the microenvironment in leukemia and other cancers. Leukemia. 2009 Jan;23(1):43-52. doi: 10.1038/leu.2008.299. Epub 2008 Nov 6.

    PubMed 18987663
  • Barretina J, Junca J, Llano A, Gutierrez A, Flores A, Blanco J, Clotet B, Este JA. CXCR4 and SDF-1 expression in B-cell chronic lymphocytic leukemia and stage of the disease. Ann Hematol. 2003 Aug;82(8):500-505. doi: 10.1007/s00277-003-0679-0. Epub 2003 May 29.

    PubMed 12783211
  • Marchese A. Endocytic trafficking of chemokine receptors. Curr Opin Cell Biol. 2014 Apr;27:72-7. doi: 10.1016/j.ceb.2013.11.011. Epub 2013 Dec 14.

    PubMed 24680433
  • Domanska UM, Kruizinga RC, Nagengast WB, Timmer-Bosscha H, Huls G, de Vries EG, Walenkamp AM. A review on CXCR4/CXCL12 axis in oncology: no place to hide. Eur J Cancer. 2013 Jan;49(1):219-30. doi: 10.1016/j.ejca.2012.05.005. Epub 2012 Jun 9.

    PubMed 22683307
  • Vlad A, Deglesne PA, Letestu R, Saint-Georges S, Chevallier N, Baran-Marszak F, Varin-Blank N, Ajchenbaum-Cymbalista F, Ledoux D. Down-regulation of CXCR4 and CD62L in chronic lymphocytic leukemia cells is triggered by B-cell receptor ligation and associated with progressive disease. Cancer Res. 2009 Aug 15;69(16):6387-95. doi: 10.1158/0008-5472.CAN-08-4750. Epub 2009 Aug 4.

    PubMed 19654311
  • Li SH, Dong WC, Fan L, Wang GS. Suppression of chronic lymphocytic leukemia progression by CXCR4 inhibitor WZ811. Am J Transl Res. 2016 Sep 15;8(9):3812-3821. eCollection 2016.

    PubMed 27725861

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Lymphocytic Leukemia, run by Assiut University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 12 May 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Eman mohamed salah, MD (01028030966, Emansalah.eldin@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The level of C-X-C Chemokine Receptor 4 in chronic lymphocytic leukemia patient and healthy individual (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03150849, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 May 2017.

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