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  • 1.  Foreign clinical studies

    This message was posted by a user wishing to remain anonymous
    Posted 07-Jul-2019 13:36
    This message was posted by a user wishing to remain anonymous

    Hello,

    We have been running a clinical study in the EU for a year and now plan to open some sites in the US under an IND.

    1. Will the studies already being run in the EU now be required to follow IND regulations? If yes, do we have to submit 1572s/CVs from EU investigators and list all non-US vendors in the (Transfer of Regulatory Obligations)?
    2. Can only some part of the study be under an IND and the rest non-IND (i.e. EU part of the studies)?
    3. What other requirements do we need to comply with?

    Thanks,
    Anon


  • 2.  RE: Foreign clinical studies

    Posted 08-Jul-2019 07:25
    there is no requirement that sites outside the US need to be under the IND.  you can continue to run these sites separately and only put the US sites in the IND.

    if the non-US sites are not included in the IND then there is no requirement to collect/submit 1572 for those investigators.

    as per the regulations, (314.120) any clinical data from non-US sites not under the IND must comply with GCP, as defined in the regulation.  You also need to collect Financial Disclosure forms for ALL investigators, if you intend to include their data in the submission.

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    Michael Hamrell, Ph.D., RAC, FRAPS
    Huntington Beach CA
    United States
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  • 3.  RE: Foreign clinical studies

    This message was posted by a user wishing to remain anonymous
    Posted 10-Jul-2019 16:07
    This message was posted by a user wishing to remain anonymous

    Hi Michael,

    I heard once that there are data analysis implications for studies when some sites are under an IND and others are not.  I heard that some sub-analyses of data just from the IND sites may be required, and there may be some complications when it comes to writing the clinical study report.  I don't know if there's any truth to this, but are you aware of any potential hiccups or complications down the line when a study is conducted with some sites not being under an IND?

    Thanks!


  • 4.  RE: Foreign clinical studies

    Posted 10-Jul-2019 16:39
    The most important thing is that all sites conduct the study according to GCP.  You may be asked to do subgroup analyses (US vs. non-US sites).  This is often requested not because of GCP issues but to assure that there is no difference in intrinsic factors that might influence enrollment or response (such as ethnicity, race, diet, etc.).

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    Michael Hamrell, Ph.D., RAC, FRAPS
    Huntington Beach CA
    United States
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  • 5.  RE: Foreign clinical studies

    This message was posted by a user wishing to remain anonymous
    Posted 11-Jul-2019 10:18
    This message was posted by a user wishing to remain anonymous

    Thanks for the info!

    As a follow-up, if there are no data-related or other implications to having some study sites not under an IND, why do sponsors even go through the process of requesting waivers from the requirement to sign a Form 1572 for their non-US investigators?  If the final study report/data analysis and eventual marketing application will not be impacted by having some sites not under an IND, it seems like it would be a waste of time and effort to submit waiver requests for signed 1572s for non-US investigators.


  • 6.  RE: Foreign clinical studies

    Posted 11-Jul-2019 14:59
    Many Sponsors are under the mistaken impression that having the sites under the IND somehow guarantees acceptability of the data generated at non-US sites.  In the end it is quality data conducted under GCP that is important, not the IND status of the sites.

    Sponsors go through the exercise to try to place all sites under the IND also for consistency purposes.  As a result, if a site won't/can't sign a 1572 they need to seek a waiver for not having the form for a site under the IND.

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    Michael Hamrell, Ph.D., RAC, FRAPS
    Huntington Beach CA
    United States
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  • 7.  RE: Foreign clinical studies

    This message was posted by a user wishing to remain anonymous
    Posted 12-Jul-2019 09:22
    This message was posted by a user wishing to remain anonymous

    Thank you Michael!


  • 8.  RE: Foreign clinical studies

    Posted 11-Jul-2019 11:17
    Edited by Julie Omohundro 11-Jul-2019 11:41
    If I had to guess, the rumors that you have heard are based on the question of whether the results of your study are generalizable to the patient population for which FDA is responsible. 

    This is determined in part by your indications for use and by your inclusion/exclusion criteria.  These would be described in your protocol, which would be included in the IND you submitted to FDA.  This would give FDA the opportunity to assess whether you are proposing to enroll subjects that will, in fact, be representative of the US patient population.  

    Generalizability will also be determined by a number of other site-related factors, such as the standard of care followed at the site, and the overall profile of the patients served by the site.  (This is an issue in the US as well, where a site located in a central urban area is likely to serve, and therefore enroll, different demographics than a site located in a town in Iowa.)  Again, if you submit your sites to FDA, it gives FDA a chance to consider these issues before, rather than after.  (But no guarantee that it will actually consider them.)

    If your reviewing division is strong on scientific methodology, they will want you to do a pooling analysis.  This is a somewhat ham-handed way of assessing these issues after the fact.  If the results of the analysis don't support pooling the data across all of your sites, then you may have to delete data from some sites and reanalyze.  That's a very exciting experience, in much the same way that volcanic eruptions, forest fires, and tornados are exciting.  It will also require rewriting or amending your study report.

    How important all of this is to you depends on what is important to your company about the study:

    • If your company seriously wants to learn something about the safety and effectiveness of its product, then you need to give all of this serious consideration.  And you will need to find someone to help you design your study who understands experimental design and methodology as something more than a number-crunching exercise.

    • If your company will be satisfied with data that will be accepted by FDA...maybe, maybe not.  The glaring difference between FDA's GCP regulations and its other "good practice" regulations is that its GCP regulations were designed only to assure ethical studies, where its GLP and GMP regulations were designed to assure quality results.  An understanding of these issues may be widespread at CDER, or it may be spotty and depend on the level of scientific understanding within the reviewing division or even that of the individual reviewer.




    ------------------------------
    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
    ------------------------------



  • 9.  RE: Foreign clinical studies

    Posted 13-Jul-2019 11:22
    There are many reasons for there to be differences in outcomes among sites. For foreign versus US sites, the biggest difference is likely to be standard of care. A number of years ago I was involved in analyzing a study in which about half the sites were in the US and half in Russia. The drug worked in Russia but did not work in the US. The only explanation was that patients in Russia did not have the same range of ancillary therapies available to them as the US patients so that the magnitude of effect of the investigational product was diminished in the US patients. FDA did not approve the drug because it did not work in US patients.

    Another example of differences among sites is in the training and experience of the persons performing the efficacy evaluations. In two pivotal studies conducted in the US only, there were some sites that found no difference between active and placebo in the efficacy outcome even though the majority found a large difference. The efficacy outcome, I believed, depended on the skill and patience of the persons doing the efficacy evaluation.

    I think any biostatistician worth their credentials is going to evaluate site differences as a covariate in the efficacy analysis and know whether there is a site effect and explore whether that difference affects the outcome before it goes to FDA to discover the difference. And as Michael suggests, every analysis of efficacy should include an analysis of the effect of race and gender on the outcome. Further, the reason that Asian countries insist on some experience in an Asian population because of the evidence that racial and dietary differences can result in different responses.

    I do think that FDA guidances on study design and execution, statistical analysis and acceptance of foreign data lays all of this out nicely. But, it does not impact on whether a foreign investigator is submitted to the IND or not.

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    Glen Park PharmD
    Executive Director, Regulatory Affairs and Quality Assurance
    Jersey City NJ
    United States
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