Helping clinical trials run better, faster

As you read this post over your afternoon coffee, scientists all over the world are hard at work trying to prevent the spread of deadly viruses, and cure and treat debilitating illnesses like cancer, HIV and Alzheimer’s. When a breakthrough happens and one of those scientists puts her finger on […]

The QbD Column: Split-plot experiments

Split-plot experiments are experiments with hard-to-change factors that are difficult to randomize and can only be applied at the block level. Once the level of a hard-to-change factor is set, we can run experiments with several other factors keeping that level fixed. To illustrate the idea, we refer in this […]

JMP Clinical is coming to PharmaSUG!

Everyone’s favorite mash-up of JMP and SAS software will be at PharmaSUG in the Mile-High City, May 8-11. Stop by our booth in the exhibition hall to see demos of JMP and JMP Clinical, as well as of JMP Genomics, another JMP and SAS combination. You can be among the […]

The QbD Column: Response surface methods and sequential exploration

George Box and K.B. Wilson introduced the idea of response surface methodology in a famous article[1] in 1951. There were several novel and extremely useful ideas in the article: Designed experiments can be a great tool in experimentally optimizing conditions. When feedback is rapid, there are great benefits to breaking […]

The QbD Column: Achieving robustness with stochastic emulators

In an earlier installment of The QbD Column titled A QbD factorial experiment, we described a case study where the focus was on modeling the effect of three process factors on one response, viscosity. Here, we expand on that case study to show how to optimize process parameters of a […]

Are we on schedule? Predictive modeling for patient recruitment in multicenter trials

Since clinical trials are experiments that study patients, they rely heavily on finding the right kind and the right number of patients. Clinical trials can be conducted only after enough patient information has been collected and treatment groups randomly assigned, so it is very important that researchers recruit enough people […]

Using data points to fill a graphic with color

When dealing with graphs and plots, we will very likely need to fill colors in a graph to highlight an area or distinguish it from other shapes. You may know how to shade regular shapes, but what about irregular polygons and contours? You can do can this easily to any […]

The QbD Column: A QbD factorial experiment

A quick review of QbD The first blog post in this series described Quality by Design (QbD) in the pharmaceutical industry as  a systematic approach for developing drug products and drug manufacturing processes. Under QbD, statistically designed experiments are used to efficiently and effectively investigate how process and product factors […]

The QbD Column: Overview of Quality by Design

Developing new drugs is a complex, lengthy and expensive endeavor. When the process leads to an approved drug, the result is improved patient care and great benefits for the developers. But many promising drugs never live up to expectations. The US Food and Drug Administration (FDA), observing that new drug […]

Identifying re-enrolled subjects in clinical trials, the sequel

This past June, at the Drug Information Association (DIA) annual meeting, I had the opportunity to present and participate in a panel discussion on innovative approaches to ensure quality and compliance in clinical trials. Not surprisingly, a majority of the discussion focused on sponsor responsibilities for building quality into its […]