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Reduced testing of API

  • 1.  Reduced testing of API

    Posted 27-Aug-2023 01:20

    Dear Experts,

    I would like to know about post approval ANDA filling category (PAS, CBE-30, CBE-0, AR) for reduction of API testing frequency. 

    Reduced testing strategy:-

    • For every lot, some test parameters (Appearance, ID, Assay etc) will be performed by us and result of rest of the test parameter to be captured from Vendor CoA. 
    • Full tests to be performed at our end after every 10/20 lots
    • Risk assessment has been performed to identify potential impact and action taken accordingly. 

    Your insight, experience or guidance reference is highly appreciated. 



    ------------------------------
    SUJAN BOSE
    M.Pharm
    ------------------------------


  • 2.  RE: Reduced testing of API

    Posted 28-Aug-2023 07:45

    Good day, Sujan.

    You list seems comprehensive with one exception: you did not mention what has been done to qualify the vendor in terms of audits or amount of time / number of batches your company has with that vendor.  It is my personal opinion that full testing every 10 - 20 batches may be too infrequent, depending on how quickly you go through those 10 - 20 batches. I would suggest that you perform full testing once every quarter, as things can change at a vendor site without your knowledge.

    I hope this is helpful.



    ------------------------------
    Arvilla Trag RAC
    Principal Consultant
    CMC Compliance Services
    Iron River MI
    United States
    ------------------------------



  • 3.  RE: Reduced testing of API

    Posted 30-Aug-2023 01:26

    Hello Madam Arvilla,

    Hope you are having good time.

    Thank you for your valuable insight regarding this matter. I want to inform you that we have also system in place for vendor qualification with onsite inspection and review of the vendor's data. I forgot to include that in my earlier post. Sorry for that.  

    I want to know that what kind of filling mechanism should I follow to notify FDA regarding reduced testing of API ? Can you please comment on that.

    Looking forward to hear from you soon.

    With thanks,



    ------------------------------
    SUJAN BOSE
    M.Pharm
    ------------------------------



  • 4.  RE: Reduced testing of API

    Posted 31-Aug-2023 07:18

    Hello Sujan.  None of the previous replies make reference that reduced testing is clearly described in the drug GMP regulations in 21 CFR 211, Subpart E, 122.80 - Control of Components and Drug Product Containers and Closures, specifically 211.84(d)(2) as follows: 

    "(2) Each component shall be tested for conformity with all appropriate written specifications for purity, strength, and quality. In lieu of such testing by the manufacturer, a report of analysis may be accepted from the supplier of a component, provided that at least one specific identity test is conducted on such component by the manufacturer, and provided that the manufacturer establishes the reliability of the supplier's analyses through appropriate validation of the supplier's test results at appropriate intervals."

    Reduced testing likely has nothing to do with the NDA/ANDA filing, unless something is specifically written.



    ------------------------------
    Peter Smith
    Principal
    Smith GMP Consulting
    Narragansett, Rhode Island
    USA
    ------------------------------



  • 5.  RE: Reduced testing of API

    Posted 31-Aug-2023 08:10

    Hello Peter,

    Per ANDA Submissions - Content and Format: "3.2.S.2.3 Contains the control of materials used in the manufacture of the drug substance." Per M4Q, "3.2.S.2.3 Control of Materials: Materials used in the manufacture of the drug substance (e.g., raw materials, starting materials, solvents, reagents, catalysts) should be listed identifying where each material is used in the process. Information on the quality and control of these materials should be provided. Information demonstrating that materials (including biologically-sourced materials, e.g., media components, monoclonal antibodies, enzymes) meet standards appropriate for their intended use (including the clearance or control of adventitious agents) should be provided, as appropriate."

    I would posit that it may depend on the specific nature of the API in question, such as potency, strength, potential for toxicity, etc., whether the testing program is required in the ANDA, and therefore whether reduced testing would be required in a supplement. In a BLA I always provide a description of the materials management system in S.2.3, as a main point of Module 3 is to demonstrate that the process is operating in a state of control ("control[s]" appears 33 times in M4Q, not counting duplicates; yes, I am a little OCD). 

    I would rather provide the testing/reduced testing information in a submission and receive an RFI from FDA than receive comments in a 483.



    ------------------------------
    Arvilla Trag RAC
    Principal Consultant
    CMC Compliance Services
    Iron River MI
    United States
    ------------------------------



  • 6.  RE: Reduced testing of API

    Posted 03-Sep-2023 01:15

    Dear Sir,

    Thank you for your valuable input. If you please clarify "unless something is specifically written" .

    After adopting reduced testing, we want mention below statement in the approved API specification "All test parameters will be done as intermittent testing (after every 10th batch), appearance and Identification by IR will be tested routinely."

    Do we need to submitted revised API specification after that? If yes, how we should address?

    Looking to hear from you.



    ------------------------------
    SUJAN BOSE
    M.Pharm
    ------------------------------



  • 7.  RE: Reduced testing of API

    Posted 04-Sep-2023 06:27

    Sujan,

    Your specifications should not change, only your testing schedule. If your API has a specific SOP for all of its testing, that may need revision, depending on how it is worded. If you do not already have a written reduced testing procedure, you will need one.

    Please note that if your specifications do change, you will need to resume full testing of the API to qualify it for reduced testing again. 

    Best of luck!



    ------------------------------
    Arvilla Trag RAC
    Principal Consultant
    CMC Compliance Services
    Iron River MI
    United States
    ------------------------------



  • 8.  RE: Reduced testing of API

    Posted 06-Sep-2023 03:00

    Dear Madam Arvilla,

    Thank you for your response.

    We do have a internal procedure capturing reduced testing assessment and procedure which also guide us to add a statement "All test parameters will be done as intermittent testing (after every 10th batch), appearance and Identification by IR will be tested routinely." in the specification for better tracking of the activities. 

    Yes, by adopting the reduced testing, only the testing schedule will be changed not the specification as you said.

    Looking to hear expert opinion from you.

    Happy to connect with industry expert like you.



    ------------------------------
    SUJAN BOSE
    M.Pharm
    ------------------------------



  • 9.  RE: Reduced testing of API

    This message was posted by a user wishing to remain anonymous
    Posted 05-Sep-2023 09:07
    This message was posted by a user wishing to remain anonymous

    Why do you want to add that statement now? Keep it as internal process! Acceptance testing schedule for any materials need not be part of the specification unless it was part of the original ANDA!




  • 10.  RE: Reduced testing of API

    This message was posted by a user wishing to remain anonymous
    Posted 28-Aug-2023 14:01
    This message was posted by a user wishing to remain anonymous

    Your proposal seems adequate but I think your question is whether it is CBE, PAS etc filing mechanism! This depends on your approved ANDA and what it originally contained! Was accepting of API testing schedule included in your original ANDA? If not then it should simply go through your Change Control process and make it your SOP for incoming testing schedule for APIs and other excipients. If this schedule was included and approved as part your ANDA, then I'd propose CBE-30. Usually in my experience with NDAs, this incoming acceptance testing schedule is not included, only acceptance tests are included. 




  • 11.  RE: Reduced testing of API

    Posted 30-Aug-2023 01:31

    Dear anonymous.

    Good day. 

    You are right, our original ANDA does not contain any API testing schedule, it covers in our internal procedure.

    We are planning to include reduced testing for one of our API used in ANDA application and we have followed all the procedures described in the procedure.

    Are you  suggesting to notify Agency in Annual report regarding this reduce testing? Any FDA guidance/real life experience insight is highly appreciated.

    Thank you for your valuable time. Looking forward to hear back from you soon.



    ------------------------------
    SUJAN BOSE
    M.Pharm
    ------------------------------



  • 12.  RE: Reduced testing of API

    This message was posted by a user wishing to remain anonymous
    Posted 30-Aug-2023 09:05
    This message was posted by a user wishing to remain anonymous

    If it is nor included in the original ANDA, then there is no regulatory impact! Only your internal change control process need to be followed and get it approved! You don't need to submit this to your ANDA! Hope this helps! As I said before, in my experience the incoming acceptance testing schedule for any materials is not included in NDAs!




  • 13.  RE: Reduced testing of API

    This message was posted by a user wishing to remain anonymous
    Posted 31-Aug-2023 09:08
    This message was posted by a user wishing to remain anonymous

    I agree with Peter above and also the Anon's response that this reduced testing of incoming or purchased raw material acceptance testing schedule is not part of the submission. Control of raw materials, API etc is already included in the submission but your question pertains to acceptance testing schedule (not control of these materials) before they are used in manufacturing so this testing schedule is part of GMP Quality (CFR 211 sub part E 122.80 as Peter pointed out above) and should only go through Change control process! 

    "In lieu of such testing by the manufacturer, a report of analysis may be accepted from the supplier of a component, provided that at least one specific identity test is conducted on such component by the manufacturer, and provided that the manufacturer establishes the reliability of the supplier's analyses through appropriate validation of the supplier's test results at appropriate intervals."