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CDx Enzyme Platform for Precision Medicine

Precision Medicine Diagnostic Development Platform

CDx Enzyme Platform for Precision Medicine

Enabling Biomarker-Driven Diagnostics from Discovery to Deployment

Companion diagnostics (CDx) are at the core of precision medicine, enabling the identification of patients most likely to benefit from targeted therapies. At Creative Enzymes, we provide a comprehensive CDx enzyme platform that integrates enzyme products, engineering technologies, and assay development capabilities to support the full lifecycle of diagnostic innovation.

Our platform empowers pharmaceutical companies, diagnostic developers, and research institutions to accelerate biomarker-driven decision-making—transforming molecular insights into clinically actionable diagnostic solutions.

Companion Diagnostics Precision Medicine Enzyme Engineering Assay Development Integrated CDx Solutions

What Are Companion Diagnostics (CDx) and Why They Matter

Companion diagnostics are in vitro diagnostic tools designed to determine the suitability of specific therapeutic interventions based on individual patient biomarkers.

1

Improve Treatment Efficacy

Improve treatment efficacy through patient stratification.

2

Reduce Development Risk

Reduce clinical trial risks and failure rates.

3

Enable Targeted Therapy

Enable targeted therapy selection.

4

Support Regulatory Pathways

Support regulatory approval of precision therapeutics.

As precision medicine continues to evolve, CDx development requires highly reliable biochemical components—especially enzymes that drive signal detection, amplification, and assay performance.

The Critical Role of Enzymes in CDx

Enzymes are the functional core of many diagnostic systems. Their catalytic properties enable highly sensitive, rapid, and specific detection of biological signals, making them indispensable in companion diagnostic (CDx) applications across immunoassays, molecular diagnostics, and biosensor platforms. By converting molecular recognition events into measurable outputs, enzymes bridge the gap between biological interactions and analytical readouts.

Figure 1. Schematic representation of how enzymes function as the catalytic core of companion diagnostic (CDx) systems.
A

Signal Generation

Enzymes catalyze reactions that produce measurable outputs such as colorimetric, fluorescent, or chemiluminescent signals.

In CDx assays, enzymes such as HRP and ALP are widely used to convert non-detectable substrates into visible or quantifiable signals. These reactions form the basis of widely adopted detection technologies including ELISA, CLIA, and fluorescence-based assays. The efficiency and kinetics of these enzymatic reactions directly influence signal intensity, detection accuracy, and assay reproducibility.

B

Signal Amplification

Through catalytic turnover, enzymes amplify weak biological signals, enabling detection of low-abundance biomarkers.

A single enzyme molecule can catalyze multiple reaction cycles, significantly enhancing signal output from minimal target presence. This amplification is essential for detecting low-copy-number nucleic acids, rare proteins, or early-stage disease biomarkers. Enzyme-driven amplification mechanisms are fundamental to technologies such as PCR/qPCR, enzyme-linked immunoassays, and cascade amplification systems used in advanced biosensors.

C

Detection Specificity

Engineered enzymes enhance assay specificity by minimizing background noise and improving target selectivity.

High-purity and optimized enzymes reduce non-specific reactions and improve signal-to-noise ratios, which is critical for accurate clinical interpretation. Additionally, enzyme conjugation strategies (e.g., antibody-enzyme labeling) and substrate selectivity further enhance assay precision. Advanced enzyme engineering enables fine-tuning of catalytic activity and substrate affinity, ensuring reliable performance even in complex biological samples.

Comprehensive CDx Enzyme Product Portfolio

Our CDx enzyme portfolio supports immunoassays, molecular diagnostics, and NGS workflows, providing a scalable foundation for companion diagnostic development.

Signal & Detection Enzymes

Representative Categories

  • Horseradish Peroxidase (HRP), Alkaline Phosphatase (ALP)
  • Oxidases and Dehydrogenases

Applications

ELISA CLIA Biosensors
Catalog Product Name
ENZD-P01 Glyceryl-free Heat-labile UDG enzyme
ENZD-P02 Taq HS DNA Polymerase

DNA Polymerases & Amplification Enzymes

Representative Products

  • Taq HS DNA Polymerase, AdvTaq DNA Polymerase
  • Bst DNA Polymerase (LAMP)
  • Multiplex & MethyLight polymerases

Applications

PCR qPCR Isothermal Amplification

Reverse Transcriptases & RNA Enzymes

Representative Products

  • AdvSTART Reverse Transcriptase series
  • High Reverse Transcriptase I/II/III
  • Murine RNase Inhibitors

Applications

RT-PCR RT-qPCR RNA Detection

qPCR & One-Step RT-qPCR Systems

Representative Products

  • Probe-based & SYBR Green qPCR Mixes
  • Multiplex qPCR PreMix
  • One-step RT-qPCR Kits

Applications

Clinical Diagnostics Pathogen Detection

These systems are suited for routine quantitative testing, infectious disease detection, SNP analysis, and biomarker-driven diagnostic assay development. Optimized mixes support strong fluorescence performance, low background, robust multiplex capability, and streamlined workflow integration for highly reliable nucleic acid analysis.

Isothermal Amplification Systems

Representative Products

  • LAMP / RT-LAMP Mixes and Kits

Applications

Rapid Detection POCT
Catalog Product Name
ENZD-RT08 ColorDetect LAMP/RT-LAMP Mix
ENZD-RT09 Fluorescent LAMP/RT-LAMP Kit

NGS & Library Preparation Enzymes

Representative Products

  • High-fidelity amplification mixes
  • DNA ligase, polymerase, end-repair modules
  • DNA/RNA library prep kits

Applications

NGS Diagnostics Genomic Profiling

These reagents support high-quality library construction, target enrichment, sequencing compatibility, and reliable amplification in genomics-driven CDx workflows. They are particularly relevant for mutation profiling, liquid biopsy development, transcriptome analysis, and advanced molecular characterization in precision medicine programs.

RNA Depletion & Sample Preparation

Representative Products

  • rRNA depletion kits (multi-species)
  • mRNA capture & globin depletion systems

Applications

RNA-seq Transcriptomics Liquid Biopsy

These tools improve sample readiness for downstream sequencing and transcriptional analysis by reducing unwanted background RNA and enriching meaningful targets. They are useful in expression-based biomarker discovery, circulating nucleic acid analysis, and diagnostic workflows where clean RNA input is essential for accurate interpretation.

Custom & Engineered Enzymes

Core Capabilities

  • Activity and stability optimization
  • Glycerol-free and lyophilized formats
  • Assay-specific enzyme engineering

Applications

Custom Assay Design Workflow Optimization Format Adaptation
Development Focus Description
Activity Optimization Enhancement of catalytic efficiency and functional performance for assay-specific signal output.
Stability Engineering Improvement of thermal tolerance, storage resilience, and compatibility with lyophilized or glycerol-free formulations.
Application Tailoring Customized enzyme design to fit specific diagnostic chemistries, detection systems, and workflow requirements.

Advanced Enzyme Engineering Capabilities

Figure 2. Overview of Advanced Enzyme Engineering for Companion Diagnostics (CDx)

We offer advanced enzyme engineering services to meet the stringent performance and reliability requirements of companion diagnostic (CDx) applications. By integrating protein engineering, process optimization, and rigorous quality control, we ensure enzymes are tailored for high-sensitivity diagnostic workflows.

P

Purity

Removal of host cell proteins, residual DNA, and process-related impurities to minimize background interference and reduce false-positive or false-negative results in diagnostic assays.

S

Stability

Optimization for thermal resistance, long-term storage, and lyophilization compatibility—ensuring consistent enzyme performance across transportation, storage, and point-of-care testing (POCT) conditions.

A

Activity & Sensitivity

Enhancement of catalytic efficiency and substrate affinity to improve assay sensitivity, lower detection limits, and expand dynamic range for low-abundance biomarker detection.

B

Batch Consistency

Strict quality control and process standardization to ensure high lot-to-lot reproducibility, supporting reliable assay performance in both research and large-scale diagnostic production.

CDx Technology Platforms

Our integrated technology platforms support the entire CDx development pipeline, from early-stage biomarker discovery to assay development and system integration. By combining multi-level capabilities across molecular biology, protein engineering, and diagnostic technologies, we enable efficient and scalable CDx development.

Molecular Profiling

Biomarker detection at DNA, RNA, and protein levels using advanced molecular and immunological approaches, supporting target identification, validation, and stratification in precision medicine.

Protein Expression & Enzyme Production

High-quality enzyme production and recombinant protein expression tailored for diagnostic applications, with optimized yield, purity, and functional performance.

Assay Development & Optimization

Design, development, and analytical validation of diagnostic assays with improved sensitivity, specificity, and reproducibility across different platforms and sample types.

Detection System Integration

Support for integration into diverse diagnostic formats, including ELISA, PCR/qPCR, biosensors, and next-generation sequencing (NGS)-based systems.

Our platforms enable seamless transition from biomarker discovery to robust, scalable, and application-ready CDx solutions.

Figure 3. Integrated CDx Technology Platforms Overview

Integrated CDx Solutions

We provide end-to-end support for companion diagnostic (CDx) development, covering key stages from biomarker translation to assay optimization and scalable implementation. Our integrated approach ensures efficient development while maintaining high analytical performance and reliability.

CDx Development Workflow

Our CDx Solutions Include

  • Biomarker-driven assay design
    Development of diagnostic assays based on validated biomarkers, enabling accurate patient stratification and targeted therapy selection.
  • Enzyme selection and optimization
    Identification and engineering of optimal enzyme systems to enhance sensitivity, specificity, and overall assay performance.
  • Diagnostic kit-enabling enzyme supply
    Provision of high-quality, scalable enzyme components suitable for integration into diagnostic kits and commercial workflows.
  • Performance validation and optimization
    Analytical validation and iterative optimization to ensure robustness, reproducibility, and consistency across assay conditions and sample types.

Development Value

Our solutions are tailored to accelerate development timelines while reducing technical risk, enabling seamless transition from research to application-ready CDx systems.

Case Study: Enzyme-Driven qPCR and LAMP Workflows for Sensitive and Rapid Nucleic Acid Detection

To demonstrate the practical value of our CDx enzyme platform, we developed two representative nucleic acid detection workflows based on optimized enzyme systems: a probe-based qPCR assay for high-sensitivity quantitative detection and a LAMP assay for rapid visual and fluorescence readout.

Case 1. High-Sensitivity qPCR Detection

In the qPCR workflow, an optimized polymerase system was used to detect a serial dilution of target nucleic acid templates across a wide dynamic range. The amplification plot showed clear separation among different input concentrations, with high-copy samples reaching the fluorescence threshold earlier and low-copy samples amplifying later, consistent with expected qPCR kinetics. The system achieved a theoretical limit of detection of approximately 10 copies per reaction.

The corresponding standard curve demonstrated excellent linearity between Ct value and template concentration, with an amplification efficiency of 99.2% and an R² value of 0.998. These results suggest that the enzyme system is suitable for both sensitive detection and quantitative analysis.

High-Sensitivity qPCR Detection

Case 2. Rapid LAMP Detection for POCT-Oriented Workflows

In parallel, a LAMP-based detection workflow was established to support rapid and equipment-light testing. The visual detection panel illustrates a clear color difference between negative and positive samples, demonstrating the feasibility of direct readout without complex instrumentation.

The fluorescence amplification profile further confirmed the analytical performance of the LAMP system. Positive reactions generated strong amplification signals within a short reaction window, while the negative control remained at baseline. The assay showed the capability to detect target input levels below 50 copies per reaction.

High-Sensitivity qPCR Detection

Drug–Diagnostic Co-development

Companion diagnostics are most effective when developed in parallel with therapeutic agents.

We support drug-CDx co-development by enabling:

Biomarker ID Biomarker identification and validation
Workflow Integration Assay integration into clinical workflows
Strategic Alignment Alignment with therapeutic development strategies
Scalable Supply Scalable enzyme supply for clinical and commercial phases

This integrated approach reduces development risk and enhances the probability of clinical success.

Application Areas

Figure 4. Applications of CDx Enzyme Technology Platforms

Our CDx enzyme platform supports a broad range of precision medicine applications, enabling accurate biomarker detection, patient stratification, and data-driven clinical decision-making across multiple disease areas.

Oncology

  • Tumor biomarker detection
  • Targeted therapy selection

Our platform supports detection of genomic and protein biomarkers associated with cancer progression and therapeutic response, enabling precise patient stratification and improved treatment outcomes in oncology CDx applications.

Infectious Diseases

  • Pathogen detection
  • Antiviral resistance monitoring

Enzyme-based molecular and immunoassay solutions enable rapid and sensitive detection of pathogens, as well as monitoring of drug resistance markers, supporting timely and effective infectious disease management.

Genetic Disorders

  • Mutation analysis
  • Inherited disease diagnostics

High-sensitivity enzyme systems support accurate detection of genetic variations, including single nucleotide variants and structural changes, facilitating early diagnosis and risk assessment of inherited disorders.

Why Choose Creative Enzymes for CDx Development

  • Comprehensive enzyme portfolio for diagnostic applications
    Covering immunoassays, molecular diagnostics, and NGS workflows, with a broad range of enzymes, mixes, and kits to support diverse CDx development needs.
  • Advanced protein engineering and optimization capabilities
    Tailored enzyme design for improved stability, activity, and specificity, ensuring optimal performance in complex diagnostic environments.
  • Integrated platforms spanning molecular to assay-level development
    Seamless support from biomarker profiling and enzyme production to assay development and system integration.
  • Scalable production for research and commercial supply
    Reliable manufacturing processes enabling consistent quality from early research to large-scale diagnostic deployment.
  • Deep expertise in enzyme-based diagnostic technologies
    Extensive experience in enzyme-driven detection systems, supporting high-sensitivity and high-specificity CDx applications.

Get Started with Our CDx Enzyme Platform

Partner with Creative Enzymes to accelerate your companion diagnostic development.

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