Analysis of Blood and Bone Marrow to Detect Residual Disease in Patients With Previously Treated Hairy Cell Leukemia
Summary
RATIONALE: Diagnostic procedures that detect residual disease may predict disease relapse in patients who have hairy cell leukemia.
PURPOSE: Diagnostic trial to determine the effectiveness of analyzing blood and bone marrow to detect residual disease in patients who have previously treated hairy cell leukemia.
Description
OBJECTIVES: I. Compare the sensitivity of flow cytometry, immunohistochemistry, and polymerase chain reaction in detecting minimal residual disease following therapy with cladribine in patients with hairy cell leukemia.
OUTLINE: Blood and bone marrow samples are obtained from patients at time of bone marrow biopsies to assess minimal residual disease using flow cytometry, immunohistochemistry, and polymerase chain reaction. Patients are followed for 2 years or until disease relapse.
PROJECTED ACCRUAL: A total of 15 patients will be accrued for this study over 12-24 months.
Study Design
Primary Purpose: Diagnostic
Conditions
Leukemia
Intervention
polymerase chain reaction, flow cytometry, immunohistochemistry staining method
Location
Robert H. Lurie Comprehensive Cancer Center, Northwestern University
Chicago
Illinois
United States
60611
Status
Active, not recruiting
Source
National Cancer Institute (NCI)
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00005619
- Information obtained from ClinicalTrials.gov on July 15, 2010
Published on BioPortfolio: 2014-08-27T03:57:44-0400
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Medical and Biotech [MESH] Definitions
Multiplex Polymerase Chain Reaction
Methods for using more than one primer set in a polymerase chain reaction to amplify more than one segment of the target DNA sequence in a single reaction.
Real-time Polymerase Chain Reaction
Methods used for detecting the amplified DNA products from the polymerase chain reaction as they accumulate instead of at the end of the reaction.
Taq Polymerase
A heat stable DNA-DIRECTED DNA POLYMERASE from the bacteria Thermus aquaticus. It is widely used for the amplification of genes through the process of POLYMERASE CHAIN REACTION. EC 2.7.7.-.
Polymerase Chain Reaction
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
Image Cytometry
A technique encompassing morphometry, densitometry, neural networks, and expert systems that has numerous clinical and research applications and is particularly useful in anatomic pathology for the study of malignant lesions. The most common current application of image cytometry is for DNA analysis, followed by quantitation of immunohistochemical staining.
