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Best Practices for Clinical Evidence Management

September 22, 2022

How do you bring a medical device through the development process? What are issues that development engineers face during the different phases of the design controls process, especially when researching clinical evidence?

In this episode of the Global Medical Device Podcast, Etienne Nichols talks to Keith and Kevin Kallmes of Nested Knowledge. Following in the footsteps of their father who was a medical device inventor, the two brothers designed and developed a balloon catheter that was acquired by a major strategic.

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Some highlights of this episode include:

  • Keith and Kevin focus on clinical, regulatory, and publication consulting in the data management/data analysis services industry.

  • Like other entrepreneurs, Keith and Kevin understand the importance of central clinical outcomes data in every stage of the medical device development process for a product rooted in an unmet clinical need.

  • Engineers tend to focus on the immediate task at hand. Entrepreneurs have to consider why startups succeed or fail. Rather than fixating on money, the biggest reason devices fail is a lack of product market fit.

  • Companies should look at the science before the development. Examine clinical evidence, decision-making, prototyping, and design controls.

  • Customer Discovery: Read literature and talk to clinicians about needs. They are on the frontlines of patient care and research-capable.

  • To find scientific evidence and outcomes, search for different articles and filter/screen the articles to know when you have enough relevant information.

  • Calculate risk, know timelines, perform tests, and document design history accurately or start the design process over and learn an expensive lesson.

  • Which evidence is leading to which decisions? Share and manage evidence to make sure it is usable and effective.


Keith Kallmes on LinkedIn

Kevin Kallmes on LinkedIn

Etienne Nichols on LinkedIn

Nested Knowledge


FDA - Medical Device Overview

ISO - Medical Device Testing

GG Academy

MedTech Nation

Greenlight Guru

Memorable quotes from this episode:

“You really realize how central clinical outcomes data are to every stage of the medical device development process.” Keith Kallmes

“It’s looking at clinical evidence and convincing end users and purchasers that your device is worth the cost.” Keith Kallmes

“You should be making good decisions and good decisions should pre-exist everything in the development landscape. Design controls should come only after you’ve basically validated your need and you’ve prototyped enough that you know that you should continue.” Kevin Kallmes

“Lack of product market fit - that’s why devices fail. They’re not addressing an unmet need in the marketplace.” Keith Kallmes

“Start your design controls at concept.” Kevin Kallmes

About the Global Medical Device Podcast:


The Global Medical Device Podcast powered by Greenlight Guru is where today's brightest minds in the medical device industry go to get their most useful and actionable insider knowledge, direct from some of the world's leading medical device experts and companies.

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Etienne Nichols is a Medical Device Guru and Mechanical Engineer who loves learning and teaching how systems work together. He has both manufacturing and product development experience, even aiding in the development of combination drug-delivery devices, from startup to Fortune 500 companies and holds a Project...