What is Tumor Mutation Burden Test?
- A genomic biomarker that quantifies the frequency of somatic mutations in a patient’s tumor
- TMB- high correlates with an aggressive tumor rapidly evolving with high incidence of somatic mutations per megabase of the tumor genome
- This subsequently manifests as high neoantigen expression, helping the body’s immune system to recognize tumors
Prevalence
- According to Globocan data from 2018, around 2.25 million people were affected by cancer
- This number is known to grow by 1.15 million every year
- Males are at 9.81% risk to develop cancer before the age of 75 and females at 9.42%
Common Cancers
Lung Cancer
Breast Cancer
Ovarian Cancer
Prostate Cancer
Gastrointestinal Stromal Tumor
Thyroid Cancer
Colorectal Cancer
Melanoma
Bladder Cancer
Uterine Cancer
Pancreatic Cancer
Hepatocellular Carcinomas
Sarcomas
Thymus Cancer
Glioma
Why do you need the test?
- High Tumor Mutation Burden has been detected across numerous tumor types and has been associated with improved response rate and prolonged progression-free survival for patients on immunotherapy
- TMB expands the population of patients who can be considered candidates for immunotherapy beyond standard PD-L1 testing
- Recently, FDA has approved Pembrolizumab for treating adult and pediatric patients with unresectable or metastatic solid tumors with high TMB (>10 Mut/Mb) that have progressed following previous therapy
Why MedGenome?
- Tumor Mutation Burden test by MedGenome provides quantification in terms of TMB score as well as accurate information on actionable mutations
- A single test that analyzes all guideline-recommended genes in solid tumors, in addition to some of the rarely mutated genes in tumors
- It identifies genomic alteration biomarkers across therapeutically / prognostically relevant (with FDA approved therapies) >400 genes with a median depth of coverage of 300X (LOD of 5% for SNVs and 10% for Indels)
- The assay covers 1.3 Mb genomic region, across >400 genes relevant across major cancer types for the TMB estimation
- MedGenome's TMB testing is internally validated extensively using clinical material i.e., FFPE tumor specimens from multiple cancer types such as lung, breast, colorectal, ovarian, brain tumors, hepatocellular carcinoma, pancreatic, renal cell carcinoma, head and neck, prostate, urothelial (Bladder cancer), Skin cancer and others, along with international reference standards and cell lines