Beyond the CRC Deficit: Rethinking Clinical Skills and Adjacent Staffing Models in High-Volume Vaccine Trials

At a Glance:

Based on what we’re hearing from our clients, here are three approaches gaining traction for addressing CRC capacity during high-volume vaccine trials:

• Deconstructing the Workflow: Look closely at tasks like basic patient identification, appropriate verbal assent, and minimal EMR tracking to identify where other qualified clinical professionals could step in and free CRCs to focus on more complex research responsibilities.
• Leveraging CMAs as Trial Support: Certified Medical Assistants (CMAs) bring strong clinical foundations and can provide an additional layer of patient-facing support, helping keep workflows moving while protecting CRC capacity during high-volume periods.
• Aligning Protocol-Specific Competencies: Some vaccine sub-studies create immediate needs for specific clinical skills, such as blood draws. Aligning site support with those protocol-specific competencies, including advanced phlebotomy, can help meet clinical needs without adding unnecessary staffing overhead.

Seasonal vaccine trials already operate on a tight clock. Add evolving vaccine platforms, expanded patient cohorts, and a limited pool of research-ready Clinical Research Coordinators (CRCs), and that clock starts ticking a little louder.

For the 2026–2027 flu cycle, clinical operations leaders are navigating several shifts at once. Next-generation mRNA technology continues to shape vaccine development, while the FDA has recommended changes to all three virus components for the upcoming trivalent flu vaccines. At the same time, accelerated protocol schedules and high-volume enrollment can put even more pressure on an already challenging clinical research talent market.

And that brings us to CRCs.

As enrollment targets scale, the natural response may be to search exclusively for experienced, research-ready CRCs to handle the influx. But when that specialized talent is already difficult to find, relying on CRC hiring alone can create another bottleneck.

A more flexible, dual-track approach is emerging: continue pursuing scarce, research-ready CRC talent while making better use of the CRCs already on site. That means looking closely at the work itself and identifying where adjacent clinical skills can support the workflow without pulling CRCs away from the responsibilities that truly require their expertise.

The Indispensable Anchor: Why CRCs Remain Critical

Make no mistake: CRCs are the operational backbone of a successful clinical trial. Their specialized expertise in protocol fidelity, complex data verification, adverse event reporting, and Good Clinical Practice (GCP) compliance can’t simply be substituted.

As vaccine formulations and trial protocols become more sophisticated, the regulatory and scientific demands placed on clinical sites grow with them. CRCs oversee trial integrity, manage patient retention strategies, support complex data requirements, and help ensure trial data is auditable and ready for regulatory scrutiny.

The challenge is finding them.

Research-ready CRCs can be especially difficult to source ahead of a high-volume seasonal surge. Waiting until trial volume spikes to begin searching for that specialized talent can put already-tight timelines under even more pressure.

Breaking the Sourcing Bottleneck with a Specialized Staffing Partner

When a compressed vaccine trial window opens, there isn’t much room for a lengthy hiring process, an extended learning curve, or critical roles sitting open.

A specialized life sciences workforce partner can help organizations get ahead of that pressure by building access to experienced clinical research talent before the need reaches its peak:

• Proactive Pipeline Access: Specialized workforce partners can maintain pipelines of pre-screened clinical research professionals rather than waiting until an open requisition creates an immediate need.
• Speed to Site: High-velocity vaccine cycles may require organizations to scale within days or weeks, not months. Focused recruiting infrastructure can help identify, vet, and place qualified talent on timelines that align with trial needs.
• A Scalable Workforce Model: Looking beyond individual requisitions gives organizations an opportunity to consider the site’s broader operational constraints and build a flexible team model that balances workforce costs with enrollment and trial deadlines.

But sourcing more CRCs is only part of the equation. When specialized talent is scarce, protecting the capacity you already have becomes just as important.

Deconstructing the Workflow to Protect the Scarcity in CRC Talent

If CRCs are both indispensable and difficult to find, their time matters. During a high-volume surge, having senior research coordinators tied up in routine or lower-complexity activities can create unnecessary pressure elsewhere in the trial.

Start by looking at the work itself.

Breaking down individual protocol workflows can help organizations identify repetitive activities that may not require the full expertise of a CRC, depending on the protocol and site requirements. Those tasks could include:

• Initial patient identification
• Basic screening against inclusion and exclusion criteria
• Obtaining verbal patient assent where appropriate and permitted by the protocol
• Minimal electronic medical record (EMR) tracking and patient logging as participants enter the clinic

When appropriate frontline tasks are unbundled from the core CRC workload, organizations can begin identifying where adjacent clinical professionals may provide another layer of support.

As Dean Lothrop, Vice President of Clinical Research at Medix, explains:

“Some of our clients have shared that about a third of the work on a CRC’s plate could potentially be supported by other qualified clinical professionals. That’s why they’re looking at CMAs—to give CRCs more time to focus on the work that really requires their research expertise.”

Leveraging CMAs as Trial Accelerators and Support Systems

One approach we’re seeing organizations explore is bringing CMAs into patient-facing support roles to help absorb seasonal volume without putting the entire burden on the core research team.

CMAs bring strong clinical foundations and experience working directly with patients. Depending on protocol requirements, they may be able to support activities such as initial screening, appropriate verbal assent, basic EMR tracking, and other lower-complexity clinical workflows.

That creates an additional layer of support during periods of high patient volume and gives CRCs more room to focus on higher-complexity responsibilities, including protocol compliance, data verification, adverse event reporting, and other research-specific work.

The idea is simple: protect specialized CRC capacity by being more intentional about where that expertise is used.

Aligning Protocol-Specific Competencies

The same thinking can extend beyond CMAs.

Modern vaccine sub-studies can introduce highly specific biological sample collection demands. A site may experience a sudden need for additional blood draws or respiratory specimen collection through nasal and throat swabs as enrollment increases.

Rather than automatically pulling a CRC away from data monitoring or other research responsibilities, sites can build targeted support around the specific clinical competencies the protocol requires. Professionals with advanced phlebotomy or respiratory specimen collection experience, for example, can help meet those needs while CRCs remain focused on research-intensive responsibilities.

This approach can also help organizations align workforce costs more closely with the work that needs to be done, rather than adding broader clinical or administrative capacity where a specific skill is what the protocol actually requires.

Pair those competencies with an agile workforce model—such as structured contractor ramp-ups designed to support early-season talent retention or the ability to flex specialized personnel across sites as enrollment shifts—and organizations have more options for navigating compressed seasonal trial windows.

What Medix Is Seeing in Vaccine Trial Staffing

The pressure on CRC talent isn’t making specialized clinical research expertise any less important. It’s making organizations more thoughtful about how they use it.

That starts with a few practical questions: Which responsibilities truly require research-ready CRC expertise? Which can be supported by other qualified clinical professionals? And where could specific competencies, such as advanced phlebotomy or respiratory specimen collection, create additional capacity?

For high-volume vaccine trials, the answers can help shape a workforce model that protects scarce CRC talent while giving sites more flexibility as enrollment and protocol needs change.

Medix helps life sciences organizations identify research-ready CRCs while also building the broader clinical support teams around them. By combining specialized recruiting expertise with adjacent clinical talent and protocol-specific skills, organizations can add capacity where it’s needed while keeping critical research work moving.

Preparing for a high-volume vaccine trial? Connect with Medix to build a clinical trial staffing model around your protocol, enrollment goals, and workforce needs.