Study Planning
Protocol Design
Site Selection
Trial Rescue

Why phesi

Phesi has been at the table with life sciences companies guiding clinical development since our inception in 2007.


We build clinical development solutions using patented statistical models and advanced technologies such as big data, nature language processing, and machine learning.


We provide fully customized services to clinical trial sponsors or CROs of any size, and ensure easy integration with their existing solutions.


Our massive database provides insights to clinical studies of all phases across all therapeutic areas from all countries and geographical regions.


Proven by hundreds of clinical studies, our solutions help our clients improve clinical operation productivity, saving them a huge amount of time and money.

CLIENT Testimonials

Senior Director, Clinical Operations

Phesi worked with us to show that a particular adaptive trial design would give the best performance. The result was a significantly quicker and cheaper devel­opment time on this priority asset.

Former SVP, Global Chief Medical Officer and US R&D Head

Phesi is on the frontiers of defining clinical development as a science, performing systematic analysis of the clinical trial, clinical protocol, and clinical site space to form hypotheses about what will work and what will not. Through observation and experiment you are applying those learnings to inform new clinical programs or save old ones. Phesi is more than the sum of its parts and the value is in the integration.

Former Head of Global Medical Affairs

Every global R&D leader should know about this and should be testing it within their portfolio.


Gen Li Interviewed By Cornell Enterprise

(CORNELL ENTERPRISE) February 19 2019 Journalist Dick Anderson conducted an interview with Dr. Gen Li, founder and president of Phesi. “Gen Li was an instructor of neuroscience at Weill Cornell Medicine in 1996 when he enrolled in the inaugural class of Johnson’s One-Year MBA program for students with advanced technology degrees. He recalls a team-building session when a peer said, “Gen, you have…

Phesi At The 8th CROWN Congress

(CROWN CONGRESS) January 22 2019 Phesi is a proud sponsor and presenter at the 8th CROWN congress in Orlando, Florida. The CMO of Phesi, Dr. Paul Chew gives a talk titled “Smarter Trials = Faster Cures: 3 Things You Need to Get Right”. The presentation slides can be downloaded here. About the 8th CROWN congress This year’s CROWN Congress will…

Phesi Selected As Finalist For 2018 Scrip Award

(BUSINESS WIRE) October 10, 2018 EAST LYME, Conn.  Phesi, a technology-enabled, data-driven provider of premier clinical development services, today announced it is a finalist for a 2018 Scrip Award, one of the pharmaceutical and biotech industries’ most prestigious honors. The company has been selected as one of six finalists in the Best Technological Development in Clinical Trials – Tech Sponsor-focused…

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