Quick Summary
Ancillary supplies and equipment support many activities required to conduct a clinical trial. Planning for them is often more complex than the term ancillary suggests. This blog post outlines four best practices commonly used by successful sponsors and CROs: defining ownership early, identifying requirements during protocol review, considering global requirements before sourcing begins, and reviewing requirements from the site’s perspective.
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Why strong ancillary planning supports smoother clinical trial execution
Study drugs tend to get the spotlight in clinical trials, as they should. Without them, there’s no study. But ancillary supplies and equipment also play a critical role, even though the word ancillary suggests far less importance.
Ancillary supplies and equipment in clinical trials are the non-investigational materials, devices, kits, and study-specific components that support protocol procedures. They also support site workflows, participant visits, clinical trial supplies management, and data collection.
When ancillary supplies and equipment are unavailable, poorly planned, unsuitable, or not approved for use in a specific region, they have a way of becoming the most important thing in the world. The study drug may be the centerpiece of the study, but ancillary supplies and equipment are often what allow study procedures to happen.
The ancillary supplies and equipment category itself is broader than many people realize. These items rarely fit neatly into a single category or function. They range from collection kits, laboratory supplies, labels, and shipping materials to patient-use items, scales, blood pressure monitors, and countless study-specific components required by the protocol.
Four practices that help teams manage ancillary trial supplies and equipment with greater consistency and less disruption
The best teams know that ancillary supplies aren’t ancillary, and they plan accordingly. These supplies are not a secondary detail to handle after larger study decisions are made. They are part of the operational foundation that determines whether sites are ready, procedures are performed consistently, and participant visits move forward without avoidable disruption. That is why successful teams build ancillary planning, clinical trial logistics, and site readiness considerations into early study discussions.
Here are four practices commonly found in teams that manage clinical trial ancillary supplies and equipment effectively.
Best Practice #1: Define Ownership Early
Ancillary supplies and equipment often involve multiple stakeholders. These may include sponsors, CROs, clinical supply teams, operations groups, procurement teams, and sites. Establishing ownership early helps ensure decisions have a clear path forward as requirements evolve.
In practice, this means deciding who approves product substitutions, confirms country-specific requirements, manages supplier questions, communicates with sites, and tracks resupply or replacement needs. Without that clarity, even small decisions can slow startup or create inconsistent approaches across sites.
Consider a specified blood pressure monitor that becomes unavailable in one country. The team should already know who can approve an equivalent model and what documentation is needed. They should also know whether the change affects training or site instructions. And how the substitution will be communicated across the study.
Best Practice #2: Build the Ancillary Equipment and Supplies Requirements During Protocol Review
Protocol procedures drive ancillary equipment and supplies requirements. Creating an inventory list during protocol review can help teams identify sourcing, distribution, labeling, storage, and equipment needs before startup activities accelerate.
This review should go beyond the obvious items. A protocol procedure may require collection tubes, labels, shipping materials, storage supplies, backup components, calibrated equipment, participant instructions, or site-facing guides. Identifying those needs early gives teams time to confirm specifications, avoid rushed substitutions, and align supplies with how each visit will be conducted.
A timed blood draw is a good example. The protocol may require centrifuge access, specimen handling materials, cold-chain supplies, visit-specific instructions, and a resupply plan. If those items are not identified until sites are preparing for first patient visits, the team may have fewer sourcing options and less time to resolve gaps.
Best Practice #3: Think Globally Before You Source Locally
A supply that appears straightforward in one country may require different language versions, sourcing strategies, labeling approaches, import documentation, or distribution plans elsewhere. These questions are easier to answer before procurement begins. They become much harder to address once deadlines get closer.
Global planning also helps teams decide where consistency is essential and where controlled flexibility is acceptable. Some equipment may need to be standardized across sites because it supports data collection or endpoint assessment. Other supplies may be sourced locally if equivalent products, documentation, regulatory compliance, and approval pathways are clearly defined before procurement begins.
The same issue can appear globally. A device that works well in the United States may require a different plug configuration, translated instructions, local import documentation, cold-chain logistics considerations, or an approved regional equivalent in another country. Addressing those questions before sourcing begins can help prevent shipment delays and last-minute substitutions.
Best Practice #4: Review Requirements from the Site’s Perspective
One useful exercise is to review each study procedure from the site’s perspective. Ask a simple question: What materials, equipment, and supplies are required to perform this procedure successfully? That review often reveals requirements that are easy to overlook when planning discussions focus primarily on timelines and study drug supply.
This site-level review can uncover practical details that are easy to miss. For example, does the site have enough storage space? Are the instructions clear? Study kits, are they organized in the order they will be used? Are replacement supplies easy to request? Does the equipment require setup, calibration, charging, cleaning, or maintenance before a visit?
From the site’s point of view, a visit kit may look complete on a supply list but still create problems. Components may not be arranged in visit order. Instructions may be unclear. The site may not know how to request replacements, or one component may require refrigeration while the rest of the kit does not.
Bringing It All Together
Ancillary supplies and equipment may not receive the same attention as study drugs, but they support activities that allow studies to run as planned. When ownership is clear, requirements are identified during protocol review, and global clinical trial logistics are addressed early, ancillary supplies become easier to manage. They are also less likely to disrupt study execution when planning is tested from the site’s perspective.
The most successful ancillary supplies and equipment strategies are rarely complicated. They start with visibility into requirements, clear ownership, and planning that begins early enough to give teams options. With those elements in place, ancillary supplies and equipment are less likely to become the most important thing in the world at exactly the wrong moment.
If your next study includes multiple sites, specialized equipment, participant-facing supplies, or global distribution requirements, consider reviewing the ancillary supply plan before startup activities accelerate.
These conversations are most valuable when they happen early. Early alignment gives project teams more time to identify risks, reduce site burden, and build a more proactive ancillary supply strategy before startup pressure increases.
The Imperial Advantage
Imperial approaches ancillary supplies and equipment as part of study strategy, not simply as a procurement activity. Our teams work with sponsors and CROs to identify requirements early, support sourcing and distribution decisions, and maintain visibility throughout study execution.
That support can include reviewing protocol-driven requirements, identifying study-specific supplies and equipment, coordinating sourcing and distribution decisions, and supporting kitting needs. It can also include maintaining visibility into inventory, shipments, resupply, and lifecycle considerations. By connecting these details early, Imperial helps study teams reduce avoidable friction before it reaches the site level.
The result is a more coordinated approach that helps study teams move forward with greater confidence in the materials, equipment, and support required to perform protocol procedures as planned.
For more on this topic, download our ebook, “Ancillary Supplies and Equipment for Clinical Trials: Details, Decisions, and Making it All Work.” Download the ebook here.