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Bioanalytical Lab Experience and Expertise

Over the past 30 years, the PPD™ Laboratory services bioanalytical lab has worked with tens of thousands of molecules across a wide variety of established and evolving technologies. Our scientists are actively involved in the bioanalytical community through participation in industry events, webinars and peer-reviewed publications. Explore our significant experience in small molecules, biologics, vaccines, biomarkers and more.


Our bioanalytical lab has experience with more than 3,000 different biologics.

PPD Laboratory services bioanalytical lab has been working with biologics since 1994 and helped develop eight of the top 10 biologics of 2018. Our biologics development teams work closely with you to understand the:

  • Intended use of the assay 
  • Unique characteristics of the protein biotherapeutic 
  • Potential interferences
  • Availability of reference materials and standards
  • Current bioanalytical regulatory requirements

With this knowledge, our team can design and validate custom assays, or adapt existing assays, and quickly generate meaningful data to help inform project decisions. 

PPD Laboratory services bioanalytical lab offers comprehensive immunochemistry services to support pharmacokinetic (PK) and anti-drug antibody (ADA) safety assessments. We have broad biopharmaceutical experience with a variety of molecules including monoclonal and multivalent antibodies, antibody fragments, oligonucleotides, PEGylated proteins and antibody drug conjugates (ADCs).

Our experience includes:

  • 878+ PK/PD ligand-binding methods
  • 480+ immunogenicity/ADA assay
  • 40+ plate-based neutralizing antibody assays
  • 80+ oligomer/aptamer methods

For the past several years, we have been applying our three decades of experience with chromatography methods to the development and validation of LC-MS/MS analytical methods for biologics.

The bioanalytical lab’s experience applying LC-MS/MS and affinity capture LC-MS/MS methodologies to biologics includes:

  • Vast biologics diversity, spanning from small (1 kDA) therapeutic peptides to large (900 kDa IgM) proteins
  • A wide range of sample preparation methods from simple protein precipitation to complex affinity capture enrichment techniques
  • Development and validation of LC-MS/MS assays using surrogate peptides produced by proteolytic digestion for quantitation
  • Vast experience with bioinformatic software for identification of proteotypic candidate surrogate peptides
  • Semi-quantitative analysis of intact proteins (>10 kDa)
  • DAR characterization of antibody-drug conjugates (ADCs) using high-resolution mass spectrometry (HRMS)
  • Intact peptides, atypical peptides, monoclonal antibodies, Fab fragments and fusion products
  • Antibody-drug conjugate (ADC) assays (preclinical and clinical):
    • Total antibody
    • Antibody-conjugated toxin (cleavable and non-cleavable linkers)
    • Conjugated antibody
    • Unconjugated toxin (auristatins, calicheamicins, pyrrolobenzodiazepines (PBD), tubulysins, maytansinoids)
  • Multidimensional chromatography for the quantitation of biotherapeutics, peptides, proteins and biomarkers
  • Preclinical and clinical matrices (fully regulated and nonregulated)

Our biomarker lab and our vaccine sciences lab are also deeply involved in the development of biologics and have significant experience with a wide variety of compounds, sample types and therapeutic applications.


We have supported more than 20 biosimilar programs destined for regulatory submission.

The development of biosimilar drugs requires a bioanalytical lab with extensive experience, broad technical capabilities and a deep understanding of the regulatory pathway. We understand that the development needs for biosimilars are unique relative to other biopharmaceutical compounds:

  • They must demonstrate comparable results (safety, purity, potency, stability and immunogenicity) to the innovator product and across product lots
  • Assays developed for the innovator product may require adjustments and/or redevelopment and validation due to the physicochemical attributes and functional activity of the biosimilar
  • Biologics by nature are more variable than small molecules, making the analytical methods subject to variation across instruments, critical reagents, operators and even day-to-day and lab-to-lab differences
  • Biosimilars development is complex and each project has specific needs

In addition to bioequivalence (BE) studies, anti-drug antibody (ADA) safety and efficacy testing are critical to the development of biosimilars to explain and justify changes from the innovator drug. Disease states can also affect pharmacokinetic (PK) and ADA assessments (even in Phase I studies). Manufacturing changes introduced between studies for scale-up or patent reasons can also have an effect on those assessments.

We recognize that competition in the biosimilar arena breeds extremely tight timelines, and we work closely with clients to meet these needs.

Our bioanalytical lab has supported more than 20 biosimilar programs in support of U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA) submissions. We also have experience working with nine of the top 10 biosimilars in 2020.

We have an excellent FDA audit record, including more than 70 inspections. In addition, PPD Laboratories is one of only a very few labs that has been audited for its work in support of biosimilar submissions.

Cell and gene therapy

PPD Laboratory services have worked with more than 300 cell and gene therapy assays.

Cell and gene therapies are expected to grow at a rate of 1,000% in the next five years. PPD Laboratory services bioanalytical lab has been working with these novel therapeutics since 1997. Our team has accumulated a wealth of experience in pharmacokinetic/pharmacodynamic (PK/PD), immunogenicity and molecular genomics, backed by extensive capabilities and strong regulatory experience. At PPD Laboratories, we support customers’ therapies through every stage of the drug development life cycle.

Our dedicated lab development team works closely with customers on their programs and supports a variety of analytes and delivery mechanisms:

  • Oligonucleotides
  • mRNA
  • CAR-T therapy
  • CRISPR/Cas9
  • Enzyme replacement therapy
  • Lipid nanoparticles
  • Polymers
  • Adeno-associated virus (AAV)
  • Targeted delivery mechanisms

For the past 25 years, PPD Laboratory services has been building its expertise with these advanced therapies and has worked with more than 300 cell and gene therapy assays since 1997 to provide:

  • Method development, transfer and validation and sample analysis following U.S. Food and Drug Administration (FDA) good laboratory practices (GLP) customized for cell and gene therapies
  • Analytical expertise across a wide range of common and rare matrices including more than 20 years of experience with tissue processing and analyses

PPD Laboratory services’ bioanalytical lab provides the state-of-the-art technology, cutting-edge instrumentation and high-quality services required for advanced cell and gene therapy programs in any phase of drug development. Our offerings include:

  • Comprehensive immunochemistry, chromatographic, flow cytometry and molecular services to support preclinical studies and clinical trials Phases I-IV
  • High throughput liquid handling and sample analysis
  • Gene expression product analysis via ELISA, MSD, Gyros, Simoa and additional ligand binding platforms
  • Wide-ranging molecular genomic services including qPCR, digital droplet PCR, Sanger sequencing and next-generation sequencing (NGS) to support preclinical through post-approval
  • Anti-drug antibody and cell or plate-based neutralizing antibody assays for analyte, protein product and delivery vector
  • Bioanalysis by ion-pair liquid chromatography coupled with tandem mass spectrometry (IP-LC-MS/MS) and IP-LC-UV
  • CAR-T cell enumeration for cellular kinetics and immunophenotyping via flow cytometry
  • View our CGT Capabilities Tech Sheet
  • Technology selection guidance based upon sensitivity, selectivity, complexity, dynamic range, throughput and specific program needs
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300 cell/gene therapy assays
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PKA, ADA/Nab and biomarker assays
20 years of experience
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Regulatory experience


Our bioanalytical lab has helped develop more than 200 generic drugs, including six of the top 10 generics of 2018.

The PPD Laboratory service bioanalytical lab takes a proactive approach to method development for generic products by beginning early in the development life cycle. We support analysis for formulation development in addition to supporting pilot and pivotal studies.

Our bioanalytical lab’s generics teams have:

  • Worked with more than 65 generic pharmaceutical companies around the world
  • Supported more than 1,600 generic drug development studies
  • Analyzed more than 2 million samples
  • Conducted numerous first-to-file projects, and delivered results for many thousands of samples within a short period of time

The unique regulatory environment for generic pharmaceuticals requires an experienced development partner. The Abbreviated New Drug Application (ANDA) process has strict guidelines that require attention to detail and rapid turnaround to support Paragraph IV first-to-file submissions. We have successfully completed more than 50 onsite U.S. Federal Drug Administration (FDA) inspections for ANDA programs and our data has supported regulatory approvals through Medicines and Healthcare products Regulatory Agency (MHRA), European Medicines Agency (EMA), Brazil’s National Health Surveillance Agency (ANVISA), Health Canada and the FDA.

Small molecules

We have worked with more than 2,200 different small molecules compounds.

PPD Laboratory services’ bioanalytical lab has been contributing to the development of traditional small molecule pharmaceuticals for three decades. Our lab in Middleton, Wisconsin, is dedicated to small molecule studies, while our Richmond, Virginia, location supports small molecules and biologics. Together, our labs help us to offer compressive bioanalytical services for small molecule development including:

  • Custom pharmacokinetic and pharmacodynamic (PK/PD) assay development, transfer and validation
  • Sample analysis in multiple biological species and matrices
  • Metabolite identification
  • Mass spectrometry
  • Liquid chromatography combined with mass spectrometry (LC-MS/MS)
  • High resolution mass spectrometry (HRMS)
  • High performance liquid chromatography (HPLC)
  • Ultra-high-performance liquid chromatography (UHPLC)
  • Paragraph IV first-to-file for generic drug development

Chromatography for small molecules

We have an extensive list of validated chromatographic assays to support bioequivalence, drug-drug interaction and other types of studies. Our lab is equipped with several instrumentation platforms including systems from SCIEX, Waters and Thermo Scientific. This collection boasts more than 100 LC/MS systems, nearly a dozen multiplexing systems and approximately 30 UHPLC systems. 

Our expertise includes:

  • High Performance Liquid chromatography (HPLC, UHPLC), mass spectrometry (LC/MS) and multi-dimensional chromatography
  • Derivatization and chiral assays
  • Sample analysis in multiple biological species and matrices
  • First-to-file generic pharmaceuticals experience

Veterinary pharmaceuticals 

Accelerate your next program by leveraging our 20 years of veterinary development and regulatory experience.

For more than 20 years, PPD Laboratory services’ bioanalytical lab has been conducting customized assay development and validation for both branded and generic veterinary pharmaceuticals. Our breadth of experience and capability spans small molecules, biologics and vaccines and involves a wide variety of disciplines including chromatography, ligand-binding, cell-based assays and molecular platforms.

Our development expertise and technical capabilities help our veterinary clients bend the cost and time curve of drug development to deliver life-changing therapies to the market as efficiently as possible.

Our capabilities include:

  • Discovery analysis and formulation development studies to home in on final product specifications
  • Development of the study protocol and sample analysis plan to streamline the pre-concurrence process
  • Customized/proprietary assay development and validation
  • A wide variety of disciplines:
    • Chromatography
    • Ligand-binding
    • Cell-based assays
    • Molecular platforms

Our laboratories and instrumentation are ever-expanding and include multiple platforms for most assay types as well as high-throughput liquid handling systems.

Our dedicated animal health project managers leverage our experience and scientific expertise to ensure the success of each project. This experience includes:

  • Our breadth of expertise spans small molecules, biologics and vaccines
  • True GLP bioequivalence studies in plasma for large and small animals
  • Tissue residue studies at concentrations below that of the residue marker
  • Bioavailability studies to demonstrate true cause of therapeutic effect
  • Quantitative testing of immune response and immunogenicity for vaccines
  • Ours was the first lab to support the approval by the USDA of a monoclonal antibody in animals
  • More than 30 years’ experience in bioanalytical testing and 20+ years’ in animal health

All testing for veterinary pharmaceuticals, from pilot to pivotal studies, are conducted to true GLP standards. 

Important regulatory exposure

The success of your development project relies on attention to detail and regulatory compliance. PPD Laboratory services bioanalytical lab has an excellent working relationship with the U.S. Food and Drug Administration Center for Veterinary Medicine (FDA-CVM) and several international health and drug safety agencies. We were one of the first labs to submit electronic hyperlinked reports to the FDA-CVM. This new approach has virtually eliminated “incompletes” and has streamlined the approval process for our clients.

PPD Laboratory services does not maintain vivariums or perform testing of any kind on animals.

PPD Laboratory Services’ bioanalytical lab thought leadership series

Watch as experts from our bioanalytical, biomarker and vaccine sciences labs in Richmond, Virginia, take you through trending topics of the bioanalytical landscape ranging from CAR-T cell enumeration to vaccine immunogenicity testing.

Related resources

Learn more about our bioanalytical experience and expertise.