Welcome to pi²

Expert providers of PIL readability testing and medical device usability testing for pharmaceutical clients

Supporting the pharmaceutical industry for 16 years. And counting.

Pi² are experts in the design and application of rigorous PIL Readability Tests, Label Comprehension Studies and usability tests of medical devices and Instructions For Use (IFU), which anticipate and proactively address potential challenges by Regulators.

This includes Brands, generics, Prescription Only, OTC products, full User Tests and Bridging Studies. Working with pharmaceutical companies in the UK and Europe, we have pride ourselves on a 100% user testing success rate, with no questions from regulators over the past 10 years.

We also specialise in the design of bespoke user test methods for products, where there are safety concerns and our work has played an integral part in several challenging, but successful licence/product switch applications.


Why choose pi² ?

A unique skill mix: Our team is made up of user testing and information design specialists, survey researchers human factors consultants, professional interviewers, and regulatory associates, who have been specialising in user testing/ readability testing in the pharmaceutical field for over 15 years.
Led by former Speech and Language Therapist, Julie Musk (and current NHS Patient information manager), we combine an in-depth knowledge of the theory and principles of diagnostic testing and survey design, readability, plain English and information design with a stringent understanding of the regulatory standards and processes which apply to user testing in the pharmaceutical arena.

Innovation: We are the first user testing company to have formulated a defined approach for the user testing of front of pack designs to help reduce the risk of selection errors in the home and dispensary. This development work was published for peer review in the Pharmaceutical Journal 2014.
Our creative approaches have provided robust evidence to various regulators that PILs, IFU, medical devices, and outer labelling will enable safe and proper use, will minimise the risk of selection/dosage errors and ensure appropriate purchase in OTC settings.  

2,000 strong patient database: With access to our database of patients aged 16-85+ years (covering the whole demographic and socioeconomic spectrum), we pride ourselves on selecting representative test subject samples with higher than usual levels of those aged over 70 yrs (where appropriate), those with low literacy and little experience in using medicines; giving us an edge in providing compelling evidence to Regulators and being able to respond to urgent tests when required.


Competitive rates for high quality user testing services

  • Our readability testing/user testing services provide high quality at a competitive price with discounts for multiple tests
  • Usual turnaround times: Full Test: 4-6 weeks; Bridging Studies 2 weeks.
  • Fast track services (1-2 weeks) available.
  • Testing can be conducted in other EU countries/languages if required.

PIL User Testing

Highly diverse, fully representative test group of over 2,000 individuals.


Medicine Pack Design Testing

Bespoke test solutions? We’ve got some bright ideas.


Medical Device Testing

It’s never been more important to be in safe hands.