Skip to main content

Outage notice:

Due to the global information outage that occurred Friday, Quest is taking swift action to respond, recover and restore our operations. Our Patient Services are operating with reduced capacity so you may experience longer wait and service times. Our Customer Contact teams are currently unavailable. We appreciate your patience as we work toward returning to normal operations. 


Clinical trial lab services


Your lab support partner for all phases of clinical trial testing

We share our advanced capabilities, unique perspectives, community presence, and global infrastructure to provide your study with dependable, consistent delivery of test results.
Lab technician with pipette

Expansive specialty test menu with custom reference ranges and cutoffs available.


Lab tests


RUO + IUO tests


We are always at the forefront of science 

We offer cutting edge technology platforms and assays – powered by our clinical trial lab experts – to deliver specialty testing across our labs around the world.

  • Genomic labs
  • Flow cytometry
  • Traditional and digital anatomic pathology and histology
  • Vaccines labs
  • Purpose built companion diagnostic lab and manufacturing facility
  • Cell and gene therapy focus
  • Core testing: Special chemistry, hematology, microbiology, urinalysis

Wide range of assays

We offer the largest test menu of any commercial lab with over 3500 clinical assays and another 1000+ RUO and IUO assays ready to be used. Biomarker analysis, chemistry, hematology, serology, urinalysis, PCR. 

Extensive test menu drives custom assay development

From routine to specialty testing services and covering all medical disciplines, Quest offers one of the most comprehensive test menus in the industry. 

Browse the test directory


Expertise at every touchpoint

We dedicate project managers and project staff to every project.

Expertise on staff


MDs & PhDs



Advancing best practices in biorepository, biobanking, and storage

Quest has one of the most comprehensive biobanking solutions in the industry. That means offering best practice methods for sample collection, processing, transport, storage, and retrieval, including:


  -  Maintained and scheduled cycle counting

  -  Quality control

  -  Central geographic location

  -  Long- and short-term storage

  -  Storage conditions including -80ºC, -20ºC, and ambient

  -  Automated environmental monitoring

  -  Validated LIMS

  -  Multilayer security and restricted access

Tailored solutions at every phase

Through each phase of development, Quest can support your pursuit of getting the right therapy to the people who need it.

  • Early clinical (Phase I-IIa)
  • Late clinical (Phase IIb-III)
  • Phase IV studies
  • RWE studies
  • REMS programs

Molecules & product development

• Biomarkers

• Biologic

• Biosimilar

• Cell and gene therapy

• Novel immunotherapies

• Small molecules

• Vaccine discovery

Phase I clinical trials

Rely on Quest Diagnostics to help you track the impact of new drugs and establish proof of concept faster. We support testing to investigate dosage, side effects, and safety measures so you can proceed to the next phase.

Learn more

Products and services

We offer solutions to support your clinical trials.


Mobile phlebotomy

Reach trial participants anywhere

Provide convenient patient access through in-home visits, Quest patient service center visits, at-home self-collection, and telemedicine.
Young Asian female professional caregiver helps older Asian man use digital tablet on couch at home.

Medication Adherence

Proven solutions to maximize patient engagement

Scalable patient engagement proven to increase patient adherence, improve the patient experience, and lower overall costs of care.
Senior bearded man on phone

Products and services

Technology solutions

Man using a mobile phone

Data licensing

Leverage de-identified lab data and clinical insights to illuminate therapeutic programs

Our data scientists and healthcare professionals combine billions of de-identified clinical lab test results with a robust strategy process.
Modern server room with server racks in data center

Info sheet: central lab

Get an overview of the services and technology we offer, plus additional information about how our team of experts can accelerate your targeted therapy programs.
Central Lab

Let's discuss your project

Contact our pharma solutions experts to design a custom program to accommodate the needs of your study.

Let's talk

Let's discuss your next project

Connect with our team of experts today.

Let's talk