Chronic Lymphocytic LeukemiaNCT01110850
Direct Measurement of Leukemic Cell Turnover (Synthesis and Removal) in Patients With Chronic Lymphocytic Leukemia (CLL) Using Deuterated Water
An observational study of Chronic Lymphocytic Leukemia, run by Northwell Health at 1 site in United States.
Trial summary
Chronic lymphocytic leukemia. B-cell chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the Western Hemisphere, accounting for ~25% of all leukemia's. It represents a monoclonal expansion of small, long-lived, apparently slowly dividing CD5+ B cells. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Chronic Lymphocytic Leukemia
- How many people
- 24 participants
- Where
- 1 siteUnited States
- Study dates
- Jun 2001to 23 May 2018
- 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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Chronic Lymphocytic Leukemia
Who may be able to join
- Must be 18 years of age.
- Must meet the clinical and laboratory criteria for B-CLL (i.e., compatible clinical history and physical exam, presence of lymphocytosis, i.e., >10,000 lymphocytes / mm3, evidence for a monoclonal population of CD5+/CD19+/CD23+ cells in the periphery that have dim surface membrane lg with L chain isotype restriction).
- All patients will be staged according to the system of Rai. Only new onset patients who are not receiving therapy will be entered into the heavy water leukemic cell turnover studies.
Who cannot join
- Patients hospitalized for an acute medical problem, related or not to their leukemia, within 4 weeks of enrollment.
- A history of a second malignancy involving the hematopoietic system, or the need for extensive chemotherapy for any second malignancy; patients with active immunologic disorders (e.g., HIV and AIDS), especially autoimmune problems (e.g., autoimmune hemolytic anemia of any cause other than B-CLL).
- Patients with impaired decision-making capabilities, e.g. dementia, psychosis, alcoholism, and illicit drug use will also be excluded.
Trial locations and contacts
1 site in 1 country.
United States1 site
Feinstein Institute for Medical Research
Manhasset, New York, 11030
About this study
Official title: Direct Measurement of Leukemic Cell Turnover (Synthesis and Removal) in Patients With Chronic Lymphocytic Leukemia Using Deuterated Water (GAC 0004)
Chronic lymphocytic leukemia. B-cell chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the Western Hemisphere, accounting for ~25% of all leukemia's. It represents a monoclonal expansion of small, long-lived, apparently slowly dividing CD5+ B cells. Because of the low proliferative index and a presumed uniform proliferative rate of B-CLL cells in vivo (a fact not yet tested or documented), B-CLL appears to be primarily a disease of accumulation rather than proliferation.
Read the detailed description
Chronic lymphocytic leukemia. B-cell chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the Western Hemisphere, accounting for ~25% of all leukemia's. It represents a monoclonal expansion of small, long-lived, apparently slowly dividing CD5+ B cells. Because of the low proliferative index and a presumed uniform proliferative rate of B-CLL cells in vivo (a fact not yet tested or documented), B-CLL appears to be primarily a disease of accumulation rather than proliferation.
B-CLL remains an incurable illness and there is no survival benefit to early intervention.
Therefore, patients with early stage disease are usually followed closely without initiating treatment. Patients with more extensive disease or progressive cytopenias are eventually treated with cytotoxic agents, with or without prednisone, or with nucleoside analogues that promote apoptosis in the leukemic cells. The clinical outcome of the disease is determined both by the profound dysregulation of the immune system that results in infection and autoimmunity and by leukemic infiltration and destruction of organs. Autoimmune phenomena are common and frequently directed against hematopoietic cells, resulting in autoimmune hemolytic anemia (10-25%) or immune thrombocytopenia.
- Conditions
- Chronic Lymphocytic Leukemia
- Keywords
- Chronic Lymphocytic Leukemia
- 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.
| Study group | Role | What they receive |
|---|---|---|
| Chronic Lymphocytic Leukemia | Chronic Lymphocytic Leukemia |
What is being measured
The primary outcome is the main question the study is designed to answer.
B Cell Chronic Lymphocytic Leukemia Subgroups: Direct measurement of leukemic cell turnover (synthesis and removal) using deuterated water as a DNA-labeling agent in patients with chronic lymphocytic leukemia
We believe that the results of these studies may identify in vivo correlates of the in vitro studies we have performed previously. Kinetic analyses may be another way to identify patients with different levels of risk from this disease and thereby provide an additional prognostic parameter. This information may also help to individualize future therapies for specific patients based on the in vivo biology in their particular B-CLL clone.
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Apr 2010 (estimated)
- Study startJun 2001
- Primary completionMay 2018
- Study completion23 May 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Chronic Lymphocytic LeukemiaStudies of the same condition, open and under way.
- More trials run by Northwell HealthThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Cohort
- Time perspective
- Prospective
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- Northwell Health
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Nicholas Chiorazzi, MD, Principal investigator, Feinstein Institute for Medical Research
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01110850
- Sponsor's protocol ID
- 01-054
- Other IDs
- GAC # 0004
- Status last verified
- Mar 2021
- First submitted
- 10 Dec 2009
- Last updated
- 2 Mar 2021
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 Mar 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Direct Measurement of Leukemic Cell Turnover (Synthesis and Removal) in Patients With Chronic Lymphocytic Leukemia Using Deuterated Water (GAC 0004)
- ClinicalTrials.gov ID
- NCT01110850
- Acronym / sponsor ID
- 01-054
- Conditions
- Chronic Lymphocytic Leukemia
- Keywords
- Chronic Lymphocytic Leukemia
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- Northwell HealthUniversity, hospital or other
- Study start
- Jun 2001
- Primary completion
- May 2018 (actual)
- Study completion
- 23 May 2018 (actual)
- First posted
- 27 Apr 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Chronic lymphocytic leukemia. B-cell chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the Western Hemisphere, accounting for ~25% of all leukemia's. It represents a monoclonal expansion of small, long-lived, apparently slowly dividing CD5+ B cells. Because of the low proliferative index and a presumed uniform proliferative rate of B-CLL cells in vivo (a fact not yet tested or documented), B-CLL appears to be primarily a disease of accumulation rather than proliferation.
Detailed description
Chronic lymphocytic leukemia. B-cell chronic lymphocytic leukemia (B-CLL) is the most prevalent leukemia in the Western Hemisphere, accounting for ~25% of all leukemia's. It represents a monoclonal expansion of small, long-lived, apparently slowly dividing CD5+ B cells. Because of the low proliferative index and a presumed uniform proliferative rate of B-CLL cells in vivo (a fact not yet tested or documented), B-CLL appears to be primarily a disease of accumulation rather than proliferation.
B-CLL remains an incurable illness and there is no survival benefit to early intervention.
Therefore, patients with early stage disease are usually followed closely without initiating treatment. Patients with more extensive disease or progressive cytopenias are eventually treated with cytotoxic agents, with or without prednisone, or with nucleoside analogues that promote apoptosis in the leukemic cells. The clinical outcome of the disease is determined both by the profound dysregulation of the immune system that results in infection and autoimmunity and by leukemic infiltration and destruction of organs. Autoimmune phenomena are common and frequently directed against hematopoietic cells, resulting in autoimmune hemolytic anemia (10-25%) or immune thrombocytopenia.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Chronic Lymphocytic Leukemia | – | –Chronic Lymphocytic Leukemia |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Chronic Lymphocytic Leukemia
Key inclusion criteria (3 listed)
- Must be 18 years of age.
- Must meet the clinical and laboratory criteria for B-CLL (i.e., compatible clinical history and physical exam, presence of lymphocytosis, i.e., >10,000 lymphocytes / mm3, evidence for a monoclonal population of CD5+/CD19+/CD23+ cells in the periphery that have dim surface membrane lg with L chain isotype restriction).
- All patients will be staged according to the system of Rai. Only new onset patients who are not receiving therapy will be entered into the heavy water leukemic cell turnover studies.
Key exclusion criteria (3 listed)
- Patients hospitalized for an acute medical problem, related or not to their leukemia, within 4 weeks of enrollment.
- A history of a second malignancy involving the hematopoietic system, or the need for extensive chemotherapy for any second malignancy; patients with active immunologic disorders (e.g., HIV and AIDS), especially autoimmune problems (e.g., autoimmune hemolytic anemia of any cause other than B-CLL).
- Patients with impaired decision-making capabilities, e.g. dementia, psychosis, alcoholism, and illicit drug use will also be excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
B Cell Chronic Lymphocytic Leukemia Subgroups: Direct measurement of leukemic cell turnover (synthesis and removal) using deuterated water as a DNA-labeling agent in patients with chronic lymphocytic leukemia
Time frame: 1 year
We believe that the results of these studies may identify in vivo correlates of the in vitro studies we have performed previously. Kinetic analyses may be another way to identify patients with different levels of risk from this disease and thereby provide an additional prognostic parameter. This information may also help to individualize future therapies for specific patients based on the in vivo biology in their particular B-CLL clone.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Mar 2021.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nicholas Chiorazzi, MD principal investigator
Feinstein Institute for Medical Research
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Chronic Lymphocytic Leukemia, run by Northwell Health at 1 site in United States.
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 3 inclusion and 3 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: finished, as of the sponsor's last update on 2 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
B Cell Chronic Lymphocytic Leukemia Subgroups: Direct measurement of leukemic cell turnover (synthesis and removal) using deuterated water as a DNA-labeling agent in patients with chronic lymphocytic leukemia (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 2 Mar 2021.