N of 1 trials

On the nature of solutions of the difference equation $mathbf{x_{n+1}=x_{n}x_{n-3}-1}$

We investigate the long-term behavior of solutions of the difference equation[ x_{n+1}=x_{n}x_{n-3}-1 ,, n=0 ,, 1 ,, ldots ,, ]noindent where the initial conditions $x_{-3} ,, x_{-2} ,, x_{-1} ,, x_{0}$ are real numbers.  In particular, we look at the periodicity and asymptotic periodicity of solutions, as well as the existence of unbounded solutions.

Understanding Variation in Sets of N-of-1 Trials

A recent paper in this journal by Chen and Chen has used computer simulations to examine a number of approaches to analysing sets of n-of-1 trials. We have examined such designs using a more theoretical approach based on considering the purpose of analysis and the structure as regards randomisation that the design uses. We show that different purposes require different analyses and that these i...

P05.50. CONSORT extension for N-of-1 trials (CENT) guidelines

Purpose N-of-1 trials have been used in medicine to generate treatment information when evidence from randomized controlled trials (RCTs) is not available or applicable. Nof-1 study design maintains the methodological safeguards provided by RCTs (blinding, randomization and controls) yet avoids the disadvantages associated with large trials. A standardized method of reporting of N-of1 trials, s...

Placebo-controlled n-of-1 trials in cystic fibrosis.

Randomized n-of-1 Trials: Quality Improvement, Research, or Both?

The regulatory demarcations between clinical research and quality improvement (QI) are ambiguous and controversial. Some projects that were undertaken as a form of QI were deemed by regulatory agencies to be research and thus to require institutional review board approval. In the era of personalized medicine, some physicians may ask some patients to participate in n-of-1 trials in an effort to ...