Fit-for-purpose · Precision medicine · Companion diagnostics

Biomarker Discovery & Validation

Biomarker discovery, characterization, and validation from a diagnostic-focused CRO — with assays developed, validated, and performed to GxP, CLIA, and FDA standards.

Fit-for-purpose solutions

Early platform choices shape everything that follows

Biomarker discovery in precision medicine is complex and nuanced. Technology and platform selection affects testing throughput, the path to regulatory clearance for a companion diagnostic, the ability to scale, and commercialization, including reimbursement.

Our team develops, validates, and performs assays to regulated standards (GxP, CLIA, FDA), and supports the regulatory filings that follow.

Paths for your biomarker

From discovery to a commercial test

Choose the path that fits your program today. Each is built to carry forward to the next.

Discover

Discovery & characterization

Identify and characterize candidate DNA, RNA, protein, or metabolite biomarkers with fit-for-purpose research assays.

Service

CLIA laboratory testing

Assays customized to your application and performed exclusively in our regulated CLIA laboratory.

Kit

Kitted solutions

Custom-manufactured kits built on-site and shipped globally so third parties can run your assay.

LDT

Laboratory-developed tests

Development and validation of your laboratory-developed test (LDT).

IVD

IVD through approval

Development of an IVD diagnostic through regulatory approval for full commercialization.

Not sure which path fits?

Tell us about your biomarker and how you plan to use it. We will recommend the fastest fit-for-purpose route.

Biomarker basics

What is a biomarker?

A biomarker is a measurable DNA, RNA, protein, or metabolite characteristic, analyzed qualitatively or quantitatively in a specific sample type.

How a biomarker will be used — its category — determines the evidence and validation it needs. FDA and NIH define seven categories.

Source: FDA-NIH Biomarker Working Group, BEST (Biomarkers, EndpointS, and other Tools) Resource; summarized in Califf, Exp Biol Med 2018.

Biomarker categories

Susceptibility / risk

Indicates the potential to develop a disease in someone who does not have it

Diagnostic

Detects or confirms a disease, or identifies a disease subtype

Monitoring

Measured serially to track disease status or a treatment’s effect

Prognostic

Indicates the likelihood of progression or recurrence in someone with the disease

Predictive

Identifies who is more likely to benefit from, or be harmed by, a treatment

Pharmacodynamic / response

Changes in response to a medical product

Safety

Signals the likelihood, presence, or extent of toxicity

Precision medicine

Companion diagnostics and personalized medicine

Not all patients with the same disease share the same genetic and biomarker profile. Identifying who will and will not benefit from a therapy is now central to drug development and to personalizing treatment, dosing, and monitoring.

When a targeted therapy’s safe and effective use depends on a test, FDA expects a companion diagnostic (CDx) to select the right patients — developed alongside the drug.

Next-generation sequencing (NGS) has become a preferred method for novel biomarker discovery and drug target identification, revealing the genomic alterations and pathways behind disease.

Co-developing a companion diagnostic?

See how we support each step, from the clinical trial assay and bridging study to the marketing submission and kit manufacturing.

Technologies

Platforms for discovery and validation

Platform agnostic, your platform or ours. Testing is performed at PacificDx, our CLIA-certified, CAP-accredited laboratory.

Next-generation sequencing

Targeted panels, RNA-seq, and custom NGS for discovery and validation.

PCR, qPCR & ddPCR

Gene expression, copy number, genotyping, methylation, and rare-mutation detection.

Flow cytometry

Cell-based biomarkers and immunophenotyping.

Liquid biopsy

ctDNA and cfDNA biomarkers from blood.

Exosomes

Exosome isolation and analysis for emerging biomarkers.

Bioinformatics

Data analysis and interpretation from discovery through validation.

Take your biomarker further.

Tell us about your biomarker, your sample type, and how you plan to use the result.