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.


Phesi Adds Clinical Trials Country Selection to ClinSite

East Lyme, Connecticut, USA: Phesi, a data-driven provider of clinical development analytics products and solutions, today announced a new country selection functionality has been added to ClinSite, its platform to provide investigator site intelligence to clients, enabling investigator site selection and management. The new functionality has been added in response to the industry-wide problem of non-performing countries and sites being…

OncoSec Secures Phesi ClinSite™ License to Select Clinical Trial Investigator Sites

EAST LYME, Conn. Phesi, a data-driven provider of premier integrated clinical development analytics products and services, today announced that OncoSec Medical Incorporated (OncoSec) (NASDAQ:ONCS) has purchased a multi-year ClinSite™ license to enable more accurate and precise planning for Phase 2 and 3 clinical trials of anticancer immunotherapies developed with OncoSec’s plasmid DNA delivery platform. ClinSite is a self-service, artificial intelligence (AI)-powered…

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