I totally agree with "if the design of the study will statistically answer the question and the results show safety and efficacy to back up your claims, the agency must accept the data."
I personally think the probability that a medical device company can/will design a study that statistically answers the question (or that even understands the concept of a research question, when, for example, four Harvard academics and a bunch of reviewers at the BMJ obviously do not) is pretty low, so for me this is a routine caution.
I also cannot gauge the probability that a CDRH review team can recognize a study that is designed to statistically answer the question, but even before my current crisis of confidence, I would not have pegged that at 100%. However, to me that's not really the point when it comes to getting your product on the market. CDRH simply has to
think that your study is designed to statistically answer the question. And the only way to know what CDRH thinks is to ask CDRH. I could be snarky and say that even it doesn't have enough confidence in its opinion to give you a binding answer, but that would be truly unfair. (Oh, oops, I said it anyway.) I don't think any answer CDRH gives in advance of a full premarket review should be binding, even if it knows a well-designed study when it sees one.
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Julie Omohundro, ex-RAC (US, GS), still an MBA
Principal Consultant
Class Three, LLC
Mebane, North Carolina, USA
919-544-3366 (T)
434-964-1614 (C)
julie@class3devices.com------------------------------
Original Message:
Sent: 14-May-2019 09:13
From: Douglas Oberly
Subject: FDA Acceptance of NSR Clinical Study data to support a pre-market approval
Good morning.
My experience with FDA and NSR studies to support pre-market submissions have been positive. I find it depends on the review team as well. Some want to know everything well in advance, others are more open provided that the study design (and results) are in line with the labeling/claims you wish to seek.
I agree (and disagree) with Julie on her comment "I think this type of study presents a bigger problem for the manufacturer, since it increases the probability that the study was not designed or conducted in a manner that CDRH will accept."
I agree that there is an increased probability that the review team can push back and challenge the study design and results if you go ahead and do not consult with them before the study is conducted. However, if the design of the study will statistically answer the question and the results show safety and efficacy to back up your claims, the agency must accept the data. They cannot give an NSE simply because they were not consulted from the beginning.
The start-up medical device world does not have all the money or time to consult with the agency in a pre-Sub to only get non-binding feedback from the agency prior to a study beginning. The desired labeling/claims that are being sought for the product need to be thought through and a clear path using the study design to prove those claims. If there are questions or doubts and the path is not clear, then a pre-Sub is in order.
Thanks for reading.
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Douglas Oberly
South Windsor CT
United States
Original Message:
Sent: 14-May-2019 08:19
From: Glen Park
Subject: FDA Acceptance of NSR Clinical Study data to support a pre-market approval
OK, that makes sense. I am working on a paper on what happens to start-up companies that try to delay the bad news by false and/or misleading statements to the investors. Call it a cautionary tale.
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Glen Park PharmD
Executive Director, Regulatory Affairs and Quality Assurance
Jersey City NJ
United States
Original Message:
Sent: 13-May-2019 17:41
From: Julie Omohundro
Subject: FDA Acceptance of NSR Clinical Study data to support a pre-market approval
Glen, investors want bad news early ("fail fast"), so they can promptly cut their losses and move on. Startups want bad news later, because once investors move on, so do the startup's salaries.
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Julie Omohundro, ex-RAC (US, GS), still an MBA
Principal Consultant
Class Three, LLC
Mebane, North Carolina, USA
919-544-3366 (T)
434-964-1614 (C)
julie@class3devices.com
Original Message:
Sent: 13-May-2019 09:03
From: Glen Park
Subject: FDA Acceptance of NSR Clinical Study data to support a pre-market approval
I completely agree with Patrick's recommendation. I would like to add that my experience is that FDA has never had a problem with a study design that they did not approve or review before the study was conducted - IF - the study answers the questions they would have about effectiveness and safety. Sometimes those questions are not so clear to the industry.
Julie - regarding your comment about a start-up not wanting bad news earlier than later? Please expand.
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Glen Park PharmD
Executive Director, Regulatory Affairs and Quality Assurance
Jersey City NJ
United States
Original Message:
Sent: 12-May-2019 16:53
From: Patrick Martin
Subject: FDA Acceptance of NSR Clinical Study data to support a pre-market approval
I'm assuming that you did not get an IDE for the study. I'd recommend a Pre-Submission meeting wirh the FDA. It'd be a good idea to at least educate them about the study design and how it supports your market application. Plus you can learn about their concerns about the study before getting a NSE letter. Best of luck!
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Patrick Martin
VP, Clinical & Regulatory Affairs
Seattle WA
United States
Original Message:
Sent: 10-May-2019 08:11
From: Kenny Walsh
Subject: FDA Acceptance of NSR Clinical Study data to support a pre-market approval
Hello Everyone,
I would appreciate any feedback from the group on FDAs acceptance of clinical data from a non-significant risk (NSR) study to support a pre-market submission (510k or De Novo).
If the Study is conducted in accordance with the abbreviated requirements for an IDE and was approved by the IRB as an NSR, have you any experience of this causing an issues when the data are presented to FDA in a pre-market submission - i.e. that the FDA raises issues due to the fact that they were not involved in the approval of study.
thanks
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Kenny Walsh
QA/RA Manager
Galway
Ireland
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