SiZ® modernizes the clinical trial planning process by combining design, simulation and comparison of trial options, plus study data analysis within a single interface.

SiZ® is Cytel's fully referenced, easily learned trial design and analysis software for fixed sample size clinical studies featuring:

• a wide array of validated methods in an especially intuitive interface, easy even for first-time users
• trial simulations to rapidly and accurately compare designs
• a range of readily generated tables, graphs and plots to easily share designs amongst planning team members
• the only software that also analyzes trial data, eliminating the need for separate design and analysis applications

What can I do with it?

Using SiZ® streamlines the clinical research workflow - trial design, simulation and clinical data analysis - for a wide variety of fixed sample size scenarios. Even first-time users quickly grasp the interface, construct multiple trials for comparison and easily share design information to choose the best option. With SiZ® you can:

• design, simulate and compare a wide variety of fixed sample trials
• determine continuous, categorical, binomial, survival endpoints
• accurately calculate required sample sizes across a variety of power levels
• construct and assess superiority, non-inferiority and equivalence trials
• quickly import and analyze clinical study data with on-board tools
• run R and SAS scripts

Download SiZ® Brochure .pdf

Are all methods in SiZ® Validated?

Yes, every method in SiZ® is fully validated in practice. Individual references are displayed and can be generated for reports, incorporation into the SAP or any other study documentation.

How does SiZ® compare to nQuery Advisor?

See a comparison between SiZ® vs. nQuery Advisor
SiZ® provides a number of tests and methods not found in the current nQuery Advisor, including methods supporting non-inferiority and equivalence designs.

SiZ® is the only trial design package with built-in simulation and analysis capabilities utilizing Cytel's proven statistical algorithms and computation methods.

Developed by the Leading Trial Software Experts

47 of the top 50 biopharmaceutical companies use Cytel software to design, simulate and analyze trials. SiZ® is Cytel's newest trial software offering, rigorously validated and tested in accordance with international regulatory and CPMP guidelines.

SiZ® users can also rely on the best technical support in the business.

And SiZ® only costs $245?

A single annual license of SiZ® is $245, same price for commercial or academic/non-profit users. Contact us regarding multi-seat discounts.