Contract Laboratory Services

Your trusted partner in cellular immune monitoring

Let Our CRO Fast-Track Your Immunoassays and PBMC Processing

For more than 20 years, CTL/ImmunoSpot® has been providing contract laboratory services (CRO) for major pharmaceutical companies, biotechnology companies, government laboratories, and academic institutions.

We provide reliable PBMC processing and comprehensive measurement of cell-mediated immunity, with high-throughput capabilities.

Let us help you get your project or clinical trial on the right footing. Reach out to our experienced immune monitoring team today.

High-Quality PBMC: A Solid Foundation for Your Studies

Our highly trained CRO team specializes in the logistics, separation, and cryopreservation of functional PBMC in a regulated environment to support your preclinical or clinical studies, and we can serve as a central whole blood processing laboratory for multi-site studies.

Our optimized processes ensure exceptional cell functionality of cryopreserved PBMC for use in antigen-specific ELISPOT assays and storage.

Pioneers in Measuring Cell-Mediated Immunity

CTL was founded by pioneers in immunoassay development and analysis, and this deep expertise is evident in our CRO.

Our highly trained team performs a variety of assays in our regulated laboratory—whether to establish, perform qualification-validation, test samples to satisfy FDA requirements, or simply evaluate specimens for scientific significance.

Assays we perform include:

Neutralizing Antibody (Microneutralization Assays)
Natural killer
Cytometric bead array
Flow Cytometry and FACS
And more


Compliant and Regulated Laboratory Services

Our GCP- and GLP-regulated laboratory is CLIA/CLEP certified/approved, Part 11 compliant, and specializes in custom client laboratory developed tests (LDT) in accordance with FDA guidance for bioanalytical method validation.

California Clinical Laboratory License ID: COS 00800918

CTL is a member of the Society of Quality Assurance (SQA) and the Regulatory Affairs Professionals Society (RAPS). Our CRO laboratory has been certified for Cell Viability by the International Society for Biological and Environmental Repositories (ISBER).

As a key mission, the CRO specializes in developing and validating custom immune assays that are tailored to fit our Clients’ specific project needs and antigenic systems.

Many such optimized assay services have helped our Pharma and Biotech Clients evaluate T and B cell immunogenicity in preclinical studies and clinical trials. Whether your interests are related to oncology, vaccine development, or infectious disease, our experienced immune monitoring team can help you get your project on the right footing.

Our experienced immune monitoring team can help you reach your project milestones faster. For further information or a quote, please contact us today.

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