Clinical trial design and patient recruitment

Successful clinical trials start with data-driven design and the right patients. Yet many trials still face delays due to slow enrollment, underperforming sites, and limited diversity—challenges that can impact timelines and inflate costs. At Quest Diagnostics, we help sponsors and CROs overcome these obstacles by leveraging our robust lab data, enriched with EHR, claims, and prescription insights. Pinpoint high-potential trial sites, identify experienced principal investigators, and identify qualified patient populations. Paired with our targeted recruitment capabilities, we help enable you to design and execute trials that move faster, perform better, and deliver results.

Find the right sites. Engage the right investigators. Accelerate trial success.

Designing effective clinical trials starts with selecting sites that not only have access to eligible patients, but represent the diverse populations your therapies aim to serve. By leveraging Quest data, we help pinpoint high-opportunity geographies with concentrated, representative patient populations.

And serving more than 50% of US physicians and hospitals nationwide, Quest can identify healthcare providers actively treating your target patients—the same providers who may be well positioned to serve as experienced principal investigators.

Engage the right patients—and their providers—to accelerate trial enrollment

Recruiting the right patients is one of the most critical and challenging elements of clinical trial success. With deep insight into both clinical and demographic data, Quest helps identify individuals who precisely match inclusion and exclusion criteria, ensuring better trial fit and stronger outcomes.

Having served over 378 million patients and earned their trust as a leading diagnostics provider, Quest is uniquely positioned to support direct-to-patient outreach. We help drive trial awareness among eligible participants through secure email and direct mail communications from a trusted brand, delivered on behalf of the sponsor.

And because patients often rely on their physicians for health guidance, we also engage treating providers, equipping them with information to encourage patient participation. This dual outreach strategy helps boost engagement and shorten recruitment timelines