nQuery celebrates its 20th birthday in 2016. Over those 20 years, nQuery has earned the position as the world's most trusted sample size calculator & power analysis software for clinical trials.
Our community is growing every day and is now standing at 50,000 users worldwide at over 6,000 commercial, academic and government organizations.
Regulatory Approval drives nQuery forward. Recognized by FDA, EMA & other agencies for being robust and accurate, it has already been deployed as the sample size calculator in 1000's of successful clinical trials.
Here's what our software can do for you
nQuery firmly adheres to all regulatory recommendations
We work extensively with our customers and global regulatory agencies to ensure nQuery always meets regulatory requirements and guidelines globally. FDA, EMA, PMDA and other regulatory agencies are active users of nQuery, so their reviewers are very familiar with nQuery sample size & power analysis calculations and can assess your submission quickly & easily.
See nQuery in action with real-life examples
Check out our library of over 20 case studies and examples that showcase how to conduct sample size calculations and power analysis using nQuery.
All examples use real-life clinical trial data from studies published by leading pharmaceutical companies, including GSK, Pfizer, Amgen, etc., and are classified by both therapeutic area and statistical method so you can quickly and easily select the example most relevant to your research area and requirements.