NCT04785989Recruiting
In Vivo Metabolic Profiling of CLL (Chronic Lymphocytic Leukemia)
Metabolic Profiling of Leukemic Cells Through Isotope Tracing in Patients With CLL
Source: ClinicalTrials.gov · Last updated 26 Nov 2025
Brief summary (registry, in English)
Metabolic reprogramming has been identified as a hallmark of cancer. Almost a century after Otto Warburg initially discovered increased glycolytic activity in tumor tissue ("Warburg effect"), therapeutic targeting of cancer metabolism has become a field of intense research effort in cancer biology. A growing appreciation of metabolic heterogeneity and complexity is currently reshaping investigators "simplistic" understanding of metabolic reprogramming in cancer. Discovering metabolic vulnerabilities as new treatment targets for cancer requires systematic dissection of metabolic dependencies, fuel preferences, and underlying mechanisms in the specific physiological context. However, today's data on cancer cell metabolic signatures and heterogeneity in their physiological habitat of the human organism is sparse to non-existent representing a critical knowledge gap in designing effective metabolic therapies. Here, the investigators propose a "top-down" approach studying cancer cell metabolism in patients followed by mechanistic in-depth studies in cell culture and animal models to define metabolic vulnerabilities. Investigators will develop a metabolic tracing method to quantitatively characterize metabolic signatures and fuel preferences of leukemic lymphocytes in patients with chronic lymphocytic leukemia (CLL). Isotopic metabolic tracers are nutrients that are chemically identical to the native nutrient. Incorporated stable, non-radioactive isotopes allow investigators to follow their metabolic fate by monitoring conversion of tracer nutrients into downstream metabolites using cutting-edge metabolomics analysis. Using this method, investigators propose to test the hypothesis that leukemic lymphocytes show tissue-specific metabolic preferences that differ from non-leukemic lymphocytes and that ex vivo in-plasma labeling represents a useful model for assaying metabolic activity in leukemic cells in a patient-specific manner.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 16 (estimated)
- First submitted
- 25 Feb 2021
- Start date
- 13 Jun 2022
- Primary completion date
- Oct 2026
- Lead sponsor
- University of Wisconsin, Madison
- Diseases
- Chronic lymphocytic leukaemia
- NCT number
- NCT04785989
What you commit to
- Study type: Observational
- Planned participants: 16
- From 13 Jun 2022 to the primary completion date, Oct 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Cannot be on antihyperglycemic therapy
Other illness
- Psychiatric inpatients or people who are institutionalized
- History of diabetes
Age
- Minor (Less than 18 years of age)
Other
- For all participants
- Prisoners
- Carbohydrate restricting diets: Atkins, Vegan, Ketogenic, etc.
- Females of child bearing potential
- Persons without decision-making capacity
- Person who cannot read/write English
- Not meeting inclusion criteria defined above
Who the study is looking for
- Group A
- Adult (18 years of age or older)
- No previous history of cancer
- Routine history of normal blood counts and vital signs
- Documented Informed Consent
- Group B
- Adult (18 years of age or older)
- Diagnosis of CLL with low disease burden defined as Rai stage 0 ((Lymphocytosis; no enlargement of the lymph nodes, spleen, or liver; red blood cell and platelet counts are near normal.)
- Treatment naïve
- Documented Informed Consent
- Group C
- Adult (18 years of age or older)
- Diagnosis of CLL with high systemic disease burden defined as infiltration of bone marrow causing cytopenia
- Treatment naïve
- Able/willing to have bone marrow aspiration
- Documented Informed Consent
Age in the registry: 18 years to - · Sex: All · Accepts healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Wisconsin Coordinator of this site? Confirm its status | Madison | United States | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.