A Study of the Kinetics of Lymphoid Cells in Patients With Monoclonal B-cell Lymphocytosis (MBL), Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL), Mantle Cell Lymphoma (MCL) and Healthy Volunteers

This study is currently recruiting participants. (see Contacts and Locations)
Verified November 2013 by National Institutes of Health Clinical Center (CC)
Sponsor:
Collaborator:
North Shore Long Island Jewish Health System
Information provided by:
National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:
NCT01117142
First received: May 4, 2010
Last updated: July 12, 2014
Last verified: November 2013
  Purpose

Background:

  • Chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), and mantle cell lymphoma (MCL) are types of cancers in which there are too many abnormal lymphocytes (a type of white blood cell). Monoclonal B-cell lymphocytosis (MBL) is a condition in which the individual has a larger than normal number of lymphocytes. Individuals with CLL, SLL, MBL, and MCL may survive for many years without the need for treatment, but there is an apparent correlation between cell birth rates and disease activity. By studying the birth and death rates of lymphocytes, researchers hope to identify individuals who are at risk for worsening disease.
  • Heavy water is similar in structure to regular water, but it has two deuterium atoms instead of two hydrogen atoms. Deuterium has one more neutron than hydrogen, which is what makes heavy water heavy. Heavy water is not radioactive, looks and tastes like regular water, and has no known harmful effects at research-level doses. When a small amount of heavy water is consumed daily, newly produced blood cells are labeled (tagged), which allows researchers to track cell growth and to measure the birth and death rates of CLL, SLL, MBL, MCL or normal lymphocytes.

Objectives:

- To study the birth and death rates of lymphocytes from individuals with MBL, CLL/SLL, and MCL, compared with lymphocytes from healthy volunteers.

Eligibility:

  • Individuals at least 18 years of age who have been diagnosed with MBL, CLL, SLL, or MCL, but who have not been taking certain agents (Viagra, Levitra, Cialis, or other PDE-inhibitors, prednisone, cyclosporin-A, rapamycin, or other immunosuppressive agents, more than 2 cups of green tea daily, or Celebrex) for 4 weeks prior to enrollment in the study.
  • Healthy volunteers at least 18 years of age, but who have not been taking certain agents (Viagra, Levitra, Cialis, or other PDE-inhibitors, prednisone, cyclosporin-A, rapamycin, or other immunosuppressive agents, more than 2 cups of green tea daily, or Celebrex)for 4 weeks prior to enrollment in the study.

Design:

  • Participants will be screened with a medical history, physical examination, and initial blood tests. Other tests may be administered to the individuals with cancer, as required by the study researchers.
  • All participants will drink regular doses of heavy water daily for a total of 4 weeks (labeling period). There is an optional 6-month follow-up or wash-out period during which no additional heavy water will be consumed.
  • Blood samples will be collected weekly during the labeling period, and a bone marrow biopsy will be obtained where possible. Individuals with cancer may also have a lymph node biopsy during this part of the study.
  • Additional blood samples may be collected during the optional wash-out phase of the study to determine the rate at which cancer cells disappear.
  • Treatment is not provided as part of this protocol.

Condition
Monoclonal B-Cell Lymphocytosis

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: A Study of the Kinetics of Lymphoid Cells in Patients With Monoclonal B-Cell Lymphocytosis (MBL), Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL), Mantle Cell Lymphoma (MCL) and Healthy Volunteers.

Resource links provided by NLM:


Further study details as provided by National Institutes of Health Clinical Center (CC):

Primary Outcome Measures:
  • To estimate the cell proilferation rate of tumor cells in individuals with MBL, CLL/SLL, and MCL.

Secondary Outcome Measures:
  • Proliferation rate in tissue compared to blood, disappearance rate of labeled cells from the blood and tissue and the safety profile of heavy water in the study population/

Estimated Enrollment: 105
Study Start Date: April 2010
Detailed Description:

Chronic lymphocytic leukemia (CLL) and its lymphoma variant, small lymphocytic lymphoma (SLL) were for decades considered diseases caused by the progressive accumulation of abnormal lymphocytes. The prevailing view being that CLL and SLL disease processes were driven by an underlying defect in apoptosis. While resistance to apoptosis appears to be important in the CLL and SLL disease process, recent studies suggest that cellular proliferation is more important than previously realized.

Cells from individuals with CLL who drank deuterated water (heavy water) for 6 weeks showed a turnover rate of 0.1 % to 1.1 % per day. In a second study involving CLL subjects who drank heavy water, average CLL turnover rates were in a similar range but approximately 2-fold lower than average B-cell turnover rates from healthy individuals. These studies have shown the safety and scientific value of using heavy water to study the kinetics of cell proliferation in patients and normal volunteers.

We now propose this study to expand on findings by other investigators. This study will address the site of proliferation for CLL/SLL cells and will include individuals with monoclonal B-cell lymphocytosis (MBL), a possible precursor of CLL. Furthermore, we will include patients with mantle cell lymphoma (MCL), a disease in which tumor proliferation plays an important role.

Study participants will drink heavy water daily for a total of 4 weeks (labeling period) with an optional 6 months follow up ( wash out period). Blood samples will be obtained weekly during the labeling period. A bone marrow and/or lymph node biopsy will be obtained where possible during the labeling period. Additional blood draws may be obtained during the optional wash-out phase of the study to determine the rate at which tumor cells disappear.

The primary objective of this exploratory study is to obtain an estimate of the proliferation rate of tumor cells in individuals with MBL, CLL/SLL, and MCL.

The secondary objectives are to compare proliferation rates between different anatomic compartments, specifically peripheral blood, lymph node, and bone marrow and the estimation of the attrition or disappearance rate of cells during an optional phase of the protocol. Healthy volunteers may be included for comparison.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria
  • INCLUSION CRITERIA: (MBL, CLL/SLL, MCL group)

4.1.1.< TAB> Diagnosed with MBL, CLL/SLL, or MCL

4.1.2.< TAB> Greater than or equal to 18 years of age

4.1.3.< TAB> Neutrophil count (ANC) greater than or equal to 1000/mcL

4.1.4.< TAB> Platelet count greater than or equal to 50K/mcL

EXCLUSION CRITERIA: (MBL, CLL/SLL, MCL group)

4.2.1.< TAB> Concomitant use of agents that have been described to affect the biology and/or proliferation rate of CLL cells but are not approved or accepted therapies for CLL, SLL, MCL, or MBL

  • PDE-inhibitors (e.g. sildenafil, theophylline)
  • Immunosuppressive agents (e.g., prednisone, cyclosporin-A, rapamycin)
  • Green Tea extract (more than 2 cups per day)
  • Cox-2 inhibitors

4.2.2.< TAB> Chronic or current clinically significant infection, including HIV or uncontrolled infection

4.2.3.< TAB> Receiving concurrent anticancer therapies

4.2.4.< TAB> Women who are pregnant or nursing, as well as women of childbearing potential who are unwilling to use a an agreed upon form of contraception for the duration of participation in this study

4.2.5< TAB> Sexually active males who are unwilling to follow the strict contraception requirements described in this protocol.

4.2.6< TAB> Inability to understand the investigational nature of the study, inability to provide informed consent

INCLUSION CRITERIA: (Healthy volunteer group)

4.3.1< TAB> Health status will be confirmed by brief History and Physical Exam and blood work

4.3.2< TAB> Greater than or equal to 18 years of age

4.3.3< TAB> CBC and coagulation panel within the expected normal ranges for the subject

EXCLUSION CRITERIA: (Healthy volunteer group)

4.4.1.< TAB> Concomitant use of agents that have been described to affect the biology and/or proliferation rate of CLL cells

  • PDE-inhibitors (e.g. , slidenafil, theophylline)
  • Immunosuppressive agents (e.g., cyclosporin-A, rapamycin)
  • Green Tea extract (more than 2 cups per day)
  • Cox-2 inhibitors

< TAB>

4.4.2.< TAB> Women who are pregnant or nursing, as well as women of childbearing potential who are unwilling to use an agreed upon form of contraception for the duration of study participation.

4.4.3< TAB> Sexually active males who are unwilling to follow the strict contraception requirements described in this protocol.

4.4.4.< TAB> Inability to understand the investigational nature of the study, inability to provide informed consent

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01117142

Contacts
Contact: Thomas M Herndon, M.D. (202) 680-3302 herndont@mail.nih.gov
Contact: Clare C Sun, M.D. (301) 402-2399 clare.sun@nih.gov

Locations
United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact Patient Recruitment and Public Liaison Office (PRPL)    800-411-1222 ext TTY8664111010    prpl@mail.cc.nih.gov   
Sponsors and Collaborators
North Shore Long Island Jewish Health System
Investigators
Principal Investigator: Clare C Sun, M.D. National Heart, Lung, and Blood Institute (NHLBI)
  More Information

Additional Information:
Publications:
ClinicalTrials.gov Identifier: NCT01117142     History of Changes
Other Study ID Numbers: 100097, 10-H-0097
Study First Received: May 4, 2010
Last Updated: July 12, 2014
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
CLL
MBL
SLL
MCL
Growth
Development
Aging
Chronic Lymphocytic Leukemia
Monoclonal B-Cell Lymphocytosis
Small Lymphocytic Lymphoma
Mantle Cell Lymphoma
Healthy Volunteer
HV

Additional relevant MeSH terms:
Leukemia
Leukemia, Lymphocytic, Chronic, B-Cell
Leukemia, Lymphoid
Lymphocytosis
Lymphoma
Lymphoma, Mantle-Cell
Neoplasms by Histologic Type
Neoplasms
Leukemia, B-Cell
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukocytosis
Leukocyte Disorders
Hematologic Diseases
Lymphoma, Non-Hodgkin

ClinicalTrials.gov processed this record on July 24, 2014