Site Selection Mistakes That Cost Millions: What the Research Shows
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Why Site Selection Still Fails in 2025

Clinical trials are getting more advanced, but one thing hasn't changed: many of them are still built on shaky foundations. And by that, we mean poor site selection.

Let’s start with a number that should make any sponsor pause: 40% of clinical trial sites fail to enroll even a single patient (Tufts CSDD). That’s not a typo — and it’s not just frustrating. It’s incredibly expensive.

The Real Cost of Getting Site Selection Wrong

When we talk to sponsors, the same questions keep coming up:
“Why do trials keep falling behind on enrollment?”
“Why do our top sites perform while the rest lag behind?”
“Is there a smarter way to find clinical trial sites that actually deliver?”

The truth is, the cost of selecting the wrong sites isn’t just financial — though that alone is staggering. Each day of delay can cost sponsors anywhere from $600,000 to $8 million, depending on the drug and phase (Pharmaceutical Outsourcing, 2022). That includes wasted budgets, protocol amendments, additional site recruitment, and lost opportunity.

But beyond the dollars, poor site selection means:

  • Delayed market entry
  • Lower data quality
  • Increased burden on high-performing sites
  • Frustrated teams at both the sponsor and site level

So why are so many sponsors still relying on outdated site selection processes?

It’s Not About the Number of Sites — It’s About the Right Sites

Too often, selection is based on internal lists, past relationships, or site self-reported feasibility data — and those aren't enough. Sites may overestimate their enrollment capabilities, or simply not have access to the right patients at the right time.

You wouldn’t launch a product without market data. Why launch a trial without real-world site performance data?

At Intune, we built the InStitute blog to tackle this head-on. We’re bringing both sponsors and clinical trial sites into the conversation — because successful trials need both sides in sync.

40% of clinical trial sites fail to enroll a single patient — and the cost of poor site selection is staggering. In this post, we explore why trials still fall short in 2025, what it’s really costing sponsors, and how smarter strategies can change everything.