Modernize your clinical trial planning by combining design, simulation and comparison of trial options together with analysis for study data.

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

• a wide array of validated methods in the standard Architect™ interface, fast for even for first-time users
• a fast trial simulation engine to rapidly and accurately compare designs
• range of tables, graphs and plots to easily share designs amongst planning team members
• the only trial software that also analyzes data - no more switching applications for data analysis

Download SiZ® Brochure .pdf

What can I do with it?

Using SiZ® streamlines the clinical trial design and analytics workflow for a wide variety of fixed sample size scenarios. The latest version includes multiple comparison methods for multi-arm designs. With SiZ® you can:

• quickly simulate and compare a wide variety of fixed sample trial types
• design multi-arm trials choosing from parametric and p-value based methods
• 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

Even first-time users quickly grasp Cytel's Architect™ trial platform. They construct different trial variations then easily share resultant tables and plots to assess best options.

Are the methods in SiZ® validated?

Yes. Every method in SiZ® is fully validated in practice. The individual references are displayed automatically and easily generated for reports, incorporation into the SAP or 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.

From Cytel - the trial design software experts

All 25 leading global biopharmaceutical companies use Cytel technology to plan and support their trials. SiZ® is our latest software, rigorously validated, tested and supported in accordance with international regulatory and CPMP guidelines.

And SiZ® only costs $495?

Yes. A SiZ® single annual license is $495 for commercial or academic/non-profit users. Contact us regarding multi-seat discounts.