Regulatory Open Forum

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  • 1.  DMF requirements_PDUFA?

    Posted 26-Jun-2017 12:41

    ​Good morning everyone,

    When filing a DMF that will be used to support an ANDA, the FDA follows the completeness assessment guideline/checklist (per GDUFA). Does anyone know if there is a similar process when filing a DMF in support of a NDA or BLA (PDUFA)? I am trying to understand what could potentially cause a RTF for the NDA/BLA as it pertains to the DMF. I did not find any particular requirements on FDA's website but wanted to pick everyone's brains on the forum.

    Thanks,

    Sabrina



  • 2.  RE: DMF requirements_PDUFA?

    Posted 26-Jun-2017 16:12
    ​Dear Sabrina,

    There are no fees for DMFs used to exclusively support NDA or INDs.  Please clink the link below and search "FEES"

    Drug Master Files (DMFs)

    https://www.fda.gov:80/FDAgov/Drugs/DevelopmentApprovalProcess/FormsSubmissionRequirements/DrugMasterFilesDMFs/default.htm


    Best Regards,

    ------------------------------
    Tyng-Yi (Tina) Lee MS RAC
    Consultant
    North Brunswick NJ
    United States of America
    ------------------------------



  • 3.  RE: DMF requirements_PDUFA?

    Posted 27-Jun-2017 10:05
    Edited by Sabrina Dessources 27-Jun-2017 10:06

    ​Thank you Tina! I know that the fees are not required for BLA/NDA but I wanted to know what the administrative review of DMFs supporting BLA/NDA entails. Apparently, it is not as involved as the review of DMFs submitted for generic applications.

    Thanks again!

    Sabrina




  • 4.  RE: DMF requirements_PDUFA?

    Posted 27-Jun-2017 11:42

    ​Hi, Sabrina -

    DMFs are only reviewed by FDA when referred to in an application - the DMF holder will not receive comments on it until the DMF is used as part of the review of an IND, NDA, BLA, etc. The FDA will then look at the totality of the information (application + DMF) to determine if there is sufficient information for clearance/approval.  The important thing as the application sponsor is to be certain that the DMF contains the information you need - many places will allow you to review their DMF on site, even though very few will provide a copy.  Note that the comments on the DMF will go back to the DMF holder, not the application holder, so you need good communication between the two entities. 

    There are some very good guidance documents on the FDA website on how to put a DMF together, and in my experience, FDA has been very responsive when I have reached out to the help e-mail. 

    Best of luck!

    Cathy



    ------------------------------
    Catherine Anderson PHD
    Senior Manager - Regulatory CMC
    ------------------------------



  • 5.  RE: DMF requirements_PDUFA?

    Posted 27-Jun-2017 13:43

    ​Thank you Catherine! We did send an email to the FDA and they recently responded that there is not a similar process as what is used for DMFs submitted per GDUFA.
    I agree that the FDA will only do the technical review of the DMF when reviewing the BLA/NDA etc...however for generic submissions a Completeness assessment is performed prior to the technical review then the FDA becomes available for reference on FDA's website.

    Thanks!!

    Sabrina




  • 6.  RE: DMF requirements_PDUFA?

    This message was posted by a user wishing to remain anonymous
    Posted 06-Aug-2020 16:47
    This message was posted by a user wishing to remain anonymous

    Hi Everyone

    Hope everyone is doing fine and safe!

    I found this discussion and hope my query regarding DMF submission with FDA will definitely be resolved here; My query is: If we have API or excipient with 2 different specifications, Can we submit a single DMF for both as the manufacturing process is same and the difference is only in the specifications.

    Please advice
    Thanks in advance!


  • 7.  RE: DMF requirements_PDUFA?

    Posted 09-Aug-2020 13:48
    Hi,
    Single DMF with two different specifications is not possible.

    ------------------------------
    [Deepa] [Dasgupta, RAC] [Director]
    Director
    Hyderabad
    [India]
    ------------------------------



  • 8.  RE: DMF requirements_PDUFA?

    This message was posted by a user wishing to remain anonymous
    Posted 23-Sep-2020 17:11
    This message was posted by a user wishing to remain anonymous

    Thank you for your response Deepa. 

    I have another query: I am working on Site Re-registration with GDUFA and our site is responsible for manufacturing of APIs and Excipients so just want to understand if you can provide an insight on the procedure as I checked various links on FDA website but couldn't find specially for site responsible for DMF submissions. 

    Any help would be greatly appreciated.


  • 9.  RE: DMF requirements_PDUFA?

    Posted 09-Aug-2020 13:45
    Yes Sabrina,
    Completeness assessment (CA) of DMF is not applicable for NDA.CA is linked with GDUFA and hence having DMF assessed prior to ANDA filing is mandatory.

    ------------------------------
    [Deepa] [Dasgupta, RAC] [Director]
    Director
    Hyderabad
    [India]
    ------------------------------



  • 10.  RE: DMF requirements_PDUFA?

    This message was posted by a user wishing to remain anonymous
    Posted 11-Aug-2020 16:23
    This message was posted by a user wishing to remain anonymous

    Hi Everyone,

    I have a similar question, trying to understand the requirements for content of a DMF. It has been stated that DMF contents are pretty much as a CMC section of an IND or NDA. However, I wonder if the paragraphs describing pharmacodynamics and pharmacokinetics are required in a DMF for an API? Wouldn't those paragraphs be part of the NDA that refers to this DMF?

    Thank you!