Support Access to Biomarker Testing in Maryland

Biomarker testing is available for an ever-increasing range of conditions and diseases. Data shows that patients receiving targeted treatments, also known as precision medicine, experience better health outcomes, yet patient access to this type of testing has not kept pace with the rate of innovation due to a variety of factors, including:

  • Lack of awareness of new testing methodologies among providers and patients;
  • Absence of common testing terminology; and
  • Lack of coverage or overly restrictive coverage policies by both public and private payers.

The following definition and policy principles provide advocates – including patients, providers and industry – a roadmap for working with state policymakers to advance solutions that reduce barriers to access and promote patient outcomes. 

What is Biomarker Testing?

Biomarkers are an essential part of precision medicine providing necessary information for appropriate therapeutic intervention. A “biomarker” is a characteristic that is objectively measured and evaluated as an indicator of normal biological processes, pathogenic processes, or pharmacologic responses to a specific therapeutic intervention. Biomarkers include, but are not limited to, gene mutations or protein expression.

Biomarker testing is the analysis of a patient’s tissue, blood, or fluid biospecimen for the presence of a biomarker. Biomarker testing includes, but is not limited to, single-analyte tests, multi-plex panel tests, and partial or whole genome sequencing.

Testing Process: These biochemical tests identify the presence of specific biomarkers in tissue or blood samples. In some instances, a singular patient may need only one biomarker test, a panel of tests. In other cases, a patient may need whole exome or whole genome sequencing, in order to best identify specific characteristics of disease. i,ii 

Use of Results: The results of these biomarker tests can help determine the best treatment plan for a specific patient, including precision medicines.

Core Policy Principles:

  • Increase awareness and education of biomarker testing and precision medicine
  • Improve access to biomarker testing to reduce health disparities
  • Ensure coverage of appropriate biomarker testing and precision medicines to improve health outcomes
  • Support access to innovations in biomarker testing and precision medicines by ensuring citizens have access to clinical trials.

If you would like your organization to be listed in support of these principles, please complete the form below. If you have questions about this issue or how this coalition list will be used, please contact Jocelyn Collins at [email protected].


[i] Whole exome or whole genome sequencing is the process of determining the order of DNA building blocks (nucleotides) in an individual's genetic code and is one technique used to detect genetic disorders.

[ii] National Institutes of Health (NIH), What are whole exome sequencing and whole genome sequencing? Available at:

[iii] A recent study assessing time to treatment initiation (TTI) for cancer patients showed that increased TTI was associated with worsened overall survival for stages I and II breast, lung, renal and pancreatic cancers; and stage II colorectal cancers; Alok A. Khorana et al., Increase in time to initiating cancer therapy and association with worsened survival in curative settings; A U.S. analysis of common solid tumors, 10.1200/JCO.2017.35.15_suppl.6557 Journal of Clinical Oncology 35, no. 15_suppl (May 20, 2017) 6557-6557.