Patent life is too
short for delays.

Trial delays have become the norm. But do they have to be? 


On-time enrollment in pivotal Phase 2 & 3 clinical trials

> 90% repeat and referral rate for clients

60 plus countries teal logo

Extensive and diverse team of experts across 60+ countries

How does it happen?

We meet deadlines and enrollment milestones, time and time and time again. In fact, you could say our obsession with timelines is something of an unfair advantage. We’ve built a name by coming to the rescue when trials fall behind and sponsors have to start from scratch. “We Can Do Hard Things” is one of our rallying cries, and it’s true.

On-time delivery goes hand in hand with world class service. In an industry where being behind schedule is considered par for the course, we dare to buck the trend. It’s time to choose the CRO you can trust.

Ready to push your trial ahead?

Here are 3 simple first steps on the way to a successful trial:

Don’t put up with poor performance. For 25 years PSI has built such trusted relationships with biotech sponsors, that 90% of our customers are repeat and referral.

Save Time

We know that the industry is riddled with delays. In fact, 90% of trials aren’t on schedule. But at PSI, we deliver on-time, over and over again. In fact, we’re even known to enroll ahead of time.

Save Money

Your product is important, and your team has the potential to change lives for patients all around the world. Save money by choosing the right CRO from the beginning. Our budgets are tried and true, and we’ll be on-target the entire time.

Save Reputation

We deliver quality, and we deliver on-time. Our teams work tirelessly to ensure your study, and the reputation of your product will speak volumes.

"PSI was flexible to meet the various challenges in clinical trial conduct. The rapid enrollment of patients and the quick study close out allowed on-time study completion."
Sue Cammarata, Chief Medical Officer at Melinta

Our latest case studies

The PSI Advantage

PSI CRO has received 2024 CRO Leadership Awards in the categories of Expertise, Quality, Compatibility, and Reliability in the Overall (combined Big and Small Pharma) respondent group. This is the seventh consecutive year that PSI has received leadership awards presented by Clinical Leader and Life Science Connect based on research conducted by ISR. The awards recognize CROs that are voted by sponsors to meet or exceed expectations.

PSI wins CRO Leadership Awards for Expertise, Compatibility, Quality, and Reliability