Companion Diagnostics · US FDA

Fast-track & least burdensome Companion Diagnostics (CDx) consulting.

We guide Pharma and Diagnostic companies through the complex US FDA regulatory landscape for Companion Diagnostics — from first contact with CBER/CDER and CDRH through approval, validation, and commercial use — with a relentless focus on reducing time to market.

Full lifecycle support

  • Regulatory strategy & FDA negotiations
  • IDE / abbreviated IDE & PMA / De Novo / 510(k)
  • Analytical & clinical validation
  • Software & cybersecurity validation
  • Quality Management System (QMS)
  • Post-market compliance & surveillance
Fast-track
Optimized FDA pathways
Least burdensome
Fewer samples, less cost
End-to-end
Feasibility to commercial
QMS-driven
Compliant by design
About us

Our value proposition is straightforward: fast-track & least burdensome submissions.

In the US, a CDx may be classified as Class III or Class II by the US FDA. At AVSA, LLC, we specialize in guiding Pharma and Diagnostic companies through the complex regulatory landscape of Companion Diagnostics (CDx) with the US FDA. We cover everything from feasibility testing and development to verification, validation, assay transfer, and commercial use.

Our tailored consulting services are designed to reduce time to market and make it easy for the US FDA to collaborate with you — allowing you to concentrate on innovation and deliver precision medicine to patients in a timely manner.

Comprehensive support across every phase

  1. Initial request from CBER/CDER on discussions with CDRH
  2. Regulatory path negotiations with CDRH, or with CDER/CBER
  3. Significant risk vs non-significant risk determination
  4. Preparation & submission of IDE or abbreviated IDE
  5. CDx development under a robust QMS as a Clinical Trial Assay (CTA), or co-development with therapeutics for contemporaneous approval

The outcome we drive

  • Shorter, clearer path to FDA decision
  • Lower cost and regulatory burden
  • Contemporaneous CDx + therapeutic approval
  • Compliant, audit-ready documentation
  • Precision medicine to patients, sooner
Our services

End-to-end CDx consulting, engineered for the least burdensome pathway.

01

CDx Regulatory Strategy Development

With regulators, Pharma & diagnostics partners. A robust regulatory strategy is crucial to your CDx device. We provide guidance on up-to-date pathways, helping you select the optimal, least burdensome approach to minimize time and cost while ensuring compliance.

  • Regulatory pathway analysis
  • Pre-Submission consultation (Q-sub meetings with FDA)
  • Informational meeting consultation with FDA
  • Risk assessment & mitigation, including significant / non-significant risk determination
  • Regulatory roadmap creation for fast-track approvals
  • Agreement with CDRH on IDE / CDx strategy
  • Agreement with CBER / CDER on IDE / CDx strategy
02

FDA Submission Support

Navigating the FDA submission process can be daunting. We offer end-to-end support — from preparing QMS and regulatory documents to communicating with the FDA on your behalf — with a focus on the least burdensome submission.

  • Breakthrough Device Designation application
  • Premarket Approval (PMA), De Novo, or 510(k) submission
  • Submission Issue Request
  • Investigational Device Exemption (IDE) application
  • Labeling and promotional supplement
  • Supplement for group labeling of CDx
  • Negotiating therapeutic approvals with or without CDx
03

Analytical & Clinical Validation Consulting

Ensuring the clinical and analytical validity of your CDx is key to gaining FDA approval. Our team supports verification and validation studies, optimizing them for fast-track results with minimal burden.

  • Study design consultation (accuracy, precision, interference, etc.)
  • Study design with the least number of clinical samples
  • Data analysis and interpretation
  • Study reports & summaries
  • Sample selection strategy
  • Expertise in genetic tests, AAV assays & pharmacogenomics
04

Software & Cybersecurity Validation

As software and cybersecurity become increasingly critical in CDx devices, we offer specialized support to ensure your software meets FDA's rigorous validation standards, including cybersecurity assessments.

  • Software validation strategy and execution
  • Cybersecurity risk assessment and mitigation
  • Third-party cybersecurity testing plan & reports
  • FDA compliance for software & cybersecurity in CDx
  • Documentation and submission support
05

Quality Management Systems (QMS)

A strong QMS is essential for CDx device compliance. We provide support across all phases of product development, ensuring alignment with FDA regulations and industry standards for a streamlined, fast-tracked pathway to market.

  • Feasibility testing & early development guidance
  • Development & verification documentation that meets FDA requirements
  • Validation: analytical & clinical study documentation
  • Risk analysis — mentoring teams on false-negative / false-positive focus
  • Operations: transfer of validated assays to operational settings
  • Commercial use: post-market compliance & surveillance
  • QMS implementation & auditing: CAPA, supplier management, training
06

Post-Market Compliance & Surveillance

Maintaining compliance doesn't end at approval. We provide ongoing support to navigate post-market requirements and keep your device compliant — with an eye on streamlined processes that continue to reduce burden.

  • Post-market surveillance strategies
  • Adverse event reporting
  • Periodic reporting and FDA communications
  • Label changes & re-submissions with fast-track support
Why choose us

Direct FDA experience, focused on speed and the least regulatory burden.

Expertise in FDA regulations

Direct experience dealing with the US FDA brings unparalleled knowledge of regulatory requirements and industry standards for Companion Diagnostics — ensuring fast and least burdensome submissions.

Proven track record

We have successfully guided numerous companies through the FDA submission process, securing approvals and accelerating time-to-market for CDx devices through optimized, streamlined pathways.

Specialized validation support

Expert support for analytical and clinical validation, software and cybersecurity validation, and navigating the complexities of bridging study pathways and risk determinations.

End-to-end development support

From feasibility testing to commercial use, we support all phases of your product development under a robust QMS — ensuring a fast-tracked, least burdensome pathway to market.

Tailored, least burdensome solutions

Every device is unique, and so is our approach. We provide customized consulting designed to meet the specific needs of your CDx device, focused on fast-tracking approval with the least regulatory burden.

Get in touch

Ready to navigate the regulatory landscape of Companion Diagnostic devices with confidence and speed? Contact us today to schedule a consultation and take the first step towards fast-tracked, least burdensome FDA approval.

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