Building a Site That Can Take the Next Study
Part of Principal Investigator (PI) Training: The Business of Running a Site.
About 4 minutes. Free, in your language, no account needed.
Why this matters
Module 10 covered making your own oversight durable. This lesson is the other half: what makes a site one that sponsors return to, and that a physician can run without it consuming them.
The two turn out to be the same thing. Sites get chosen for predictability, and predictability is what a system produces.
Know what your team actually does
The most common blind spot in a new investigator is not regulatory. It is not knowing, in any detail, what their coordinator does all day — and you cannot supervise proportionately (§2.3.2) what you cannot picture.
If you learn one more thing after this course, make it that. CRLN's Clinical Research Coordinator course is free, covers the same site from the coordinator's side — start-up, recruitment and screening, consent mechanics, source documentation, safety, monitoring and close-out — and takes about the same time as this one. You are not learning to do their job. You are learning what "adequately supervised" means in practice, and where the work actually gets hard.
The same applies to the roles you interact with: the monitor, the pharmacist, the data manager. Each has a course, and each explains a set of requests that otherwise look arbitrary.
The roles a working site needs
Small sites combine these into fewer people. The functions still have to exist and to be delegated to someone qualified (§2.3.3):
| Function | What breaks without it |
|---|---|
| Principal investigator | Nothing else is authorized |
| Sub-investigator with real capacity | No cover, no succession |
| Coordinator | Everything operational |
| Regulatory / essential records owner | Submissions and the site file drift |
| Pharmacy or product custodian | Accountability findings |
| Data entry and query resolution | Late data, unanswered queries, delayed payment |
| Someone who owns quality | Nobody notices the pattern |
That last row is the one small sites skip, and it is the cheapest. It does not need a full-time person — it needs a named person, an hour a month, and the quarterly self-audit from Module 10.
Capability grows in a specific order
Sites that scale badly take a hard study too early. A workable progression:
- One study, run properly, to completion. A clean close-out is your first credential.
- A second study in the same therapeutic area, reusing what you learned.
- A different phase or a different sponsor, which stresses your processes rather than your knowledge.
- Complexity — a device, a decentralized element, an intensive schedule.
Skipping to step four with step-one systems is how a good clinic becomes a site with findings.
What sponsors actually assess
When feasibility questionnaires ask for numbers, they are asking whether you are predictable. Keep them as you go, because reconstructing them later is impossible:
- Patients seen per year in the relevant population.
- Approached, consented, enrolled, completed — the four numbers from Module 11.
- Time from site selection to first participant enrolled.
- Data entry lag and outstanding query count.
- Deviations per participant, and audit or inspection history with outcomes.
A site that reports honest, unflattering numbers and improves them is more attractive than one that promises well and delivers late. Sponsors have been lied to by optimists before.
The last thing
Everything in these thirteen modules reduces to the question from Module 10 — could I show them? — and one addition for a site rather than a single trial:
If my best coordinator left tomorrow, would this site still run properly next week?
If the honest answer is no, the systems live in a person rather than in the site, and that is the next thing to build.
Key takeaways
- You cannot supervise proportionately what you cannot picture: take CRLN's free CRC course to see your own site from the coordinator's side.
- Every function must exist and be delegated to someone qualified, including the one small sites skip — a named owner of quality.
- Grow capability in order; taking a complex study on step-one systems is how good clinics acquire findings.
- Keep the feasibility numbers as you go, report them honestly, and ask whether the site would still run if your best coordinator left.