Case study 2: ThinPrep
I like to use the approval of ThinPrep as an example of avoiding a false negative—a stoppage in the development of the product or drug for the wrong reasons. False negatives, in my mind, occur when you are developing a technology and you run into issues during the clinical phase and/or with FDA approval, or with a technical failure or you run out of capital prior to knowing whether or not the innovation actually works. In the case of ThinPrep, a poorly run clinical trial almost resulted in a false negative.
The company at the time was Cytyc, and an initial clinical study presented to the FDA yielded a neutral-negative outcome. The FDA said that there were not enough data to show the differentiation from the current Pap smear standard of care.
The founders of the company at that time had inherited the study protocol from a prior leadership team, so they had to finish the trial with the initial protocol. Given the FDA’s advisement, they developed a new trial. It took the persistence of these two founders, who mortgaged their homes and spent their personal dollars to take this through the next wave of clinical development. In the end it was successful. The revised clinical trial yielded an approval for ThinPrep, which is now considered a standard of care.
The use of ThinPrep reduced cervical cancer deaths by 40% from preapproval. The challenging path from clinical development to eventual commercial launch and physician leadership in advancing patient care makes the story of ThinPrep a great example of not allowing an early false negative of a poorly designed and run clinical trial stop important innovation.
Case study 3: Cologuard
The development of Cologuard is a case study demonstrating that, sometimes, when your first attempt does not work, you need to have the persistence to raise additional capital and/or use a slightly different technical approach. The approval story of Cologuard is important to share because it is an important cancer screening diagnostic, using DNA from stool samples to test for colon cancer, giving access to important colon cancer screening to many patients. Currently, caregivers are only scraping the surface with Cologuard’s ability to screen the population. There are many more patients that need access to the test, and I believe they will get it in the years ahead.
Cologuard went through a first- and second-generational technical failure. They could not get the test’s specificity and sensitivity to be at the level of a screening tool; there were too many false-positive results. With the third iteration came the technical breakthrough, and a very large, expensive study was conducted—one the leadership team was criticized for. However, that study yielded the data that achieved a New England Journal of Medicine article, and reimbursement support across the country. The combination of the right technical team and the right leadership team, who planned a proper commercial launch, with a CEO that supported the extensive clinical study, has resulted in the fourth generation of Cologuard—an important breakthrough offering a very useful new standard of care in colon cancer detection and screening.
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