PMFLIST Archives

October 2019

PMFLIST@LISTS.MICROBIOLOGYNETWORK.COM

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Jeanne Moldenhauer <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Date:
Fri, 4 Oct 2019 17:43:21 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (163 lines)
Keep in mind that there are published articles that talk about how
refrigeration heals damaged DNA/ RNA after 24 - 48 hrs.  I am not sure that
incubation for 5 days refrigerated is still a stressed organism.

Jeanne

On Fri, Oct 4, 2019 at 9:12 AM Dr. Michael J. Miller <
[log in to unmask]> wrote:

> Hi Sam. A number of my clients have the BACTEC or BacT/ALERT. We have been
> validating these systems to provide comparable results to the USP test
> with, on average, 5-7 days incubation.
>
>
>
> The minimum time to incubation will depend on the panel of organisms
> challenged into the system, which may include stressed organisms, slow
> growers or fastidious cultures. Your panel should include compendial
> organisms, facility isolates and/or organisms isolated from failed
> sterility tests, media fills or in-process or pre-filtration samples.
>
>
>
> For validation, you should consider Limit of Detection and Equivalence, at
> a minimum, compared to the USP 71 test. Guidance for validation can come
> from PDA TR 33, USP 1223 and even Ph Eur 5.1.6.
>
>
>
> As for stressed organisms, I have used sub-lethal heating for a few
> minutes for vegetative cells and incubation at 2-8 deg C for one week for
> spores.
>
>
>
> Please contact me if you would like additional guidance at
> [log in to unmask] or for additional information visit the
> tutorial pages at http://rapidmicromethods.com.  The website also
> provides information on regulatory expectations for validation and a new
> page on sterility testing of gene and cell therpay products (ATMP) where
> you can justify using smaller test volumes than the current compendial
> method.
>
>
>
> Michael
>
>
>
> From: The Pharmaceutical Microbiology Forum Email List <
> [log in to unmask]> on behalf of sam taba <
> [log in to unmask]>
> Reply-To: The Pharmaceutical Microbiology Forum Email List <
> [log in to unmask]>
> Date: Wednesday, October 2, 2019 at 9:57 PM
> To: <[log in to unmask]>
> Subject: Re: [PMFLIST] Sterility USP 71 & USP 797
>
>
>
> Dear all, thanks you so much for your input .here are more questions &
>
> infos that some of you have requested:
>
>
>
> the system is  BD BACTEC FX. the product tested for 5 days sterility with
>
> this system is CSPs ( compound sterile preparation) in a clean room
>
> facility. This system is also used bor blood sterility testing.
>
> They add 5-10 ml of product to this system( a bottle of BActec Fx) and
>
> incubate 30-35C for 5 days then if turbidity is there they will do ids if
>
> not product is released
>
>
>
> Is this easy to validate and have a good comparison results for
>
> equivalency, suitability, etc..?
>
> How about stressed/fastidious microorganisms?
>
> What would be the best approach to validate this?
>
>
>
> Looking forward to  having your valuable input again
>
> Have a great day to all
>
> Sam.T
>
>
> ------------------
> The PMFList (http://microbiologynetwork.com/pmflist.asp) is operated from
> The Microbiology Network (http://microbiologynetwork.com) and supported by
> our sponsors as a service to the scientific community.
>
> Please take a second to visit our sponsors' web sites and say thank you
> for their support of this service.
> If your company would be interested in sponsoring this community, please
> contact [log in to unmask]
>
>
>
> Science Advisory Board https://www.scienceboard.net/
>
> Steris - http://www.sterislifesciences.com/
>
> Charles River Laboratories - http://www.criver.com/
>
> Veltek Associates, Inc - http://www.sterile.com
>
> Microbiologics, Inc. - http://www.microbiologics.com
>
> BD Industrial Media - http://www.bd.com/ds/
>
> Boston Analytical http://www.bostonanalytical.com/
>
> Associates of Cape Cod, Inc. - http://www.acciusa.com/
>
>
> =================================
> The nature of this service is to provide a medium for communication.  The
> specific statements and endorsements of individuals participating in the
> discussions are not necessarily those of The Microbiology Network, Inc.,
> the PMF, or the sponsors of the list.
>

------------------
The PMFList (http://microbiologynetwork.com/pmflist.asp) is operated from
The Microbiology Network (http://microbiologynetwork.com) and supported by
our sponsors as a service to the scientific community.

Please take a second to visit our sponsors' web sites and say thank you for their support of this service.
If your company would be interested in sponsoring this community, please contact [log in to unmask]



Science Advisory Board https://www.scienceboard.net/

Steris - http://www.sterislifesciences.com/

Charles River Laboratories - http://www.criver.com/

Veltek Associates, Inc - http://www.sterile.com

Microbiologics, Inc. - http://www.microbiologics.com

BD Industrial Media - http://www.bd.com/ds/

Boston Analytical http://www.bostonanalytical.com/

Associates of Cape Cod, Inc. - http://www.acciusa.com/


=================================
The nature of this service is to provide a medium for communication.  The specific statements and endorsements of individuals participating in the discussions are not necessarily those of The Microbiology Network, Inc., the PMF, or the sponsors of the list.

ATOM RSS1 RSS2