Liquid Trace®
Hematology Profile

Precision insights for leukemia, lymphoma, and myeloma using a simple blood draw.

A highly sensitive, non-invasive liquid biopsy for hematologic malignancies, analyzing both cfDNA and cfRNA to detect mutations, fusions, and immune signatures—without the need for bone marrow biopsy.

Liquid Trace® Hematology Profile

Overview

Liquid Trace® Hematology Profile

A next-generation liquid biopsy designed specifically for patients with hematologic malignancies. This pan-cancer assay utilizes both cell-free DNA (cfDNA) and cell-free RNA (cfRNA) obtained from peripheral blood or cerebrospinal fluid (CSF) to deliver an advanced molecular profile without the need for bone marrow biopsy.

Short Description

Through high-sensitivity NGS, the test identifies a broad range of clinically relevant genomic alterations including gene mutations, fusion transcripts, chromosomal abnormalities, and copy number variations. It also includes B-cell and T-cell clonality analysis, HLA genotyping, viral RNA detection (EBV, HTLV-1, TTV), and therapeutic monitoring features such as MRD assessment and relapse prediction.

GTC’s Liquid Trace® Hematology Profile is a highly sensitive, pan-cancer test that evaluates circulating cell-free (cf) RNA and DNA and provides highly informative data that can be used for diagnosis, evaluation of the host immune response, and identification of biomarkers useful for predicting response to various therapies.

GTC’s Liquid Trace can significantly reduce the need for bone marrow biopsies for hematology patients. Furthermore, the test can detect chromosomal abnormalities, translocations, and gene amplifications.

By combining cfDNA and cfRNA analysis, Liquid Trace®: Hematology offers deeper insight into the disease biology, immune environment, and tumor evolution making it an ideal tool for initial diagnosis, therapeutic guidance, or longitudinal monitoring in leukemia, lymphoma, myeloma, and related disorders.

Cancers Detected

Liquid Trace® can detect all types of hematologic cancers including:

  • Multiple myeloma (MM)
  • Lymphoma
  • Acute lymphoblastic leukemia (ALL)
  • Acute myeloid leukemia (AML)
  • Myelodysplastic syndrome (MDS)
  • Chronic myelomonocytic leukemia (CMML)
  • Myeloproliferative neoplasm (MPN)
  • Monitor therapeutic response
  • VEXAS syndrome
  • EBV-related neoplasms
  • Hypereosinophilia

Many conventional liquid biopsy tests are dependent solely on cfDNA analysis, which presents multiple challenges. These include variations in DNA shedding between tumors as well as low sensitivity (especially in early-stage cancer), difficulty in detecting fusion genes (i.e., chromosomal translocations leading to the expression of chimeric mRNA from two genes), and inability to detect the numerous biological processes that modify RNA expression levels, such as alternative splicing, stability, and allele-specific methylation. The latter limitation is critically important as recent studies have shown that RNA testing provides another level of biological information regarding the tumor and its microenvironment.

The Benefits of cfRNA

Studies have found RNA sequencing to be more sensitive for some types of mutations, likely because cancer cells typically contain one copy of mutated DNA but numerous copies of RNA. This research is consistent with GTC’s findings that cfRNA has increased sensitivity over cfDNA alone. More specifically, cfRNA allows GTC’s Liquid Trace to detect more mutations and fusions in hematologic and solid tumor samples, which may be undetected with conventional cfDNA.

  • T-cell and B-cell clonality detection: The detection of T- and B-cell clonality is important because it can help diagnose and monitor lymphoid and plasma cell malignancies. When malignant transformation occurs in T- or B-cells, the cells can undergo uncontrolled clonal expansion, resulting in the accumulation of many cells with the identical T-cell or B-cell receptor.
  • HLA class I genotyping: May be useful when identifying candidates for immunotherapy.
  • Torque teno virus (TTV): TTV was first discovered in a patient with non-A-E hepatitis and is now regarded as a part of the human virome. In general, it does not cause pathology in immunocompetent individuals. TTV is considered as a marker of the level of immune competence in patients with immunological impairment and inflammatory disorders. High TTV load is associated with increased risk of infection. In patients with organ transplant, low TTV load is associated with an increased risk of rejection.

Sensitivity is 0.1 to 0.01 for non-hot spot, 0.01 to 0.001 for hotspot and <0.001 for tumor informed or prior Hx. 

For DNA, QNS is rare (<0.1%), but it is higher for RNA (Good DNA results but poor RNA results.  Of course, if we receive 3 ml of plasma (6 ml blood), the sample is QNS for performing RNA testing.  

  • VAF (Variant Allele Frequency) value:  This value is used to monitor the disease in liquid bx.  The high the VAF means higher tumor load.   Patients showing reduction in VAF after treatment means they are doing better.   
CSF is ideally suited for characterizing lymphoma and multiple myeloma patients with CNS involvement. Detect the presence of CAR-T cells in CSF and monitor patients undergoing CAR-T therapy.

Machine Learning (AI)

GTC uses AI in every step of our analysis, leading to daily discoveries that can help improve patient care.

Once the data are offloaded from the sequencer, our AI:

  1. Assists with mutation analysis, identifying non-mutations and artifacts 
  2. Compares various data sets to explore disease biology 
  3. Provides support for clinical decision making and classification of the disease 
  4. Helps with matching patients to therapeutics and presents clinical trial options
  5. Aggregates data for report generation and simplifies the results so they are easily understood 

Case Studies

Real-world applications of our genomic testing

We provide a selection of real-world case studies that demonstrate the clinical utility and diagnostic impact of our genomic tests. Click the button below to explore individual cases and see how Liquid Trace® contributes to precision oncology in practice.

Our case study list is continuously updated as new clinical examples become available. We encourage you to revisit this page regularly to explore the latest insights and applications of our genomic testing in real-world settings.

Sample Requirements

Peripheral blood: 10 mL in an EDTA tube is required.
Important: RNA stability is 48-72 hours from blood draw. DNA stability is 7 days from blood draw. Samples received beyond 72 hours may include only DNA results.

CSF: 7-10 mL is optimal (5 mL minimum).
Important: Ship as soon as possible (overnight).  Do not use collection devices with anti-coagulants. Clear tubes.

This is a brief overview of the sample requirements for this test. For complete and detailed instructions regarding specimen collection, handling, and submission, please download the full sample guidelines by clicking the button below.

Shipping

Specimen Preparation and Shipping Guidelines

Use the Hematology Transport Kit

  • Complete the requisition, making sure that all sections are completed in their entirety, including client information, patient Information, specimen information, and test selection.  Missing information may delay reporting of test results. 
  • Diagnosis/patient history is extremely important in rendering the correct interpretation of results and should also be filled out as completely as possible. A copy of a pathology report should be included. 
  • Ensure the specimen is labeled with patient name and number.  A minimum of two patient identifiers is required for each specimen. 

For blood samples:

  • Ship using a cold pack. The cold pack should not directly contact the blood tube. Ship as soon with overnight delivery as the sample is collected. 
 

Important: RNA stability is 48-72 hours from blood draw. DNA stability is 7 days from blood draw. Samples received beyond 72 hours may include only DNA results.

Order Kits

Fill out the form to request kits. Please refer to the Specimen Requirements page for more details.

*GTC will need to set you up in our system if this is your first order.

Less than 0.5% of our tests result in a QNS

Extremely Low QNS Rate
Less than 0.5%
> 100
Extremely Low TNP Rate
Less than 0.5%
> 100

Genes Tested

More than
RNA Genes
> 0
More than
DNA Genes
> 0

Our Clients Say

Want to explore our scientific content?

Discover articles, videos, publications