Posted by Dr. Tim Sandle,
Pharmaceutical Microbiology
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Sunday, 18 November 2018
Monday, 12 November 2018
GMP in Practice: Regulatory Expectations for the Pharmaceutical Industry
James
Vesper and Tim Sandle have a new book – ‘GMP in Practice: Regulatory
Expectations for the Pharmaceutical Industry’, Fifth Edition, Revised and
Expanded.
The Long-Awaited Revision and Update of GMP in Practice
is Here!
Have you ever asked yourself, "Where in the Good
Manufacturing Practices (GMPs) does it say I have to do _______?" If so,
look no further than PDA's GMP in Practice: Regulatory Expectations
for the Pharmaceutical Industry, fifth edition, Revised and Expanded.
As companies strive to harmonize global requirements for
quality systems, the 5th edition of this text provides an overview of the 34
essential global cGMP requirements that are typically included in a modern
pharmaceutical quality system, including data integrity and how they have
evolved. Explore risk-related questions, delve into several expectations for
each quality system element encompasses, and review real-world examples from
cGMP regulations from the US FDA, Health Canada, the European Union, the World
Health Organization, and the International Conference on Harmonization (ICH).
If you're looking for an enhanced understanding of GMP in
practice, this text is a must-have for your reference collection.
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology
Monday, 5 November 2018
Avoiding environmental monitoring ‘false negatives’
In
addition to selecting the right culture media, the use of an appropriate
neutraliser is important in relation to surface, and some personnel, monitoring.
Neutralisers are required to overcome any residues left by disinfectants, as
can be found on cleanroom surfaces or on the gloved hands of personnel. The use
of a neutraliser within the culture media formulation is also necessary to
overcome residues from antimicrobial compounds so that a false negative is
avoided.
The
use of a neutraliser is recommended in the biocontamination control standard
ISO 14698;3 and, outside of pharmaceuticals, the cosmetics microbiological test
standard ISO 21149 contains some useful advice on neutraliser selection.
Tim
Sandle has written a new paper on the topic of neutralisers for culture media.
The introduction reads:
“The
selection of an appropriate neutraliser is not straightforward. The neutraliser
must be non-toxic to the microorganisms expected to be recovered; be able to
stop residual disinfectant activity; and, in use. This latter requirement often
proves the most challenging. This article examines the most common neutralisers
used; some of the problems associated with their selection; and the
complexities around using the most appropriate neutralisers in the culture media
most commonly used in the environmental monitoring programme.”
The
reference is:
Sandle,
T. (2018) Avoiding environmental monitoring ‘false negatives’: overcoming
disinfectant residues with culture media neutralisers, European Pharmaceutical Review, 23 (4): 18-21
Thursday, 1 November 2018
Working with Biohazards
Working
with human pathogens or biohazards poses serious risks, not only for employees,
but for the public and communities as well. Infectious agents such as
microorganisms, viruses, recombinant or synthetic nucleic acid molecules, and
biological toxins present a potential for severe or lethal disease, adverse
health effects, or contamination. Any unplanned exposure or release has the
potential to cause extensive harm or damage to people, the environment, and
society.
Vince
McLeod has written an interesting article for Laboratory Manager. Here is an
extract:
The
ECP is essentially a biohazard safety manual developed to address the unique
conditions of the current research, facility design, and personnel operations
necessary to carry out the laboratory’s mission. One excellent free reference
is the CDC’s Biosafety in Microbiological and Biomedical Laboratories1 (BMBL),
which contains comprehensive information on biological risk assessment and
summary statements on many common infectious agents.”
Tuesday, 30 October 2018
NIBSC experts will be discussing how control materials are relevant
Join us and @IBMScience at our upcoming webinar where NIBSC experts will be discussing how control materials are relevant. Book now: https://t.co/GJKm6FqYdm pic.twitter.com/BNCozPkSfu
— NIBSC_MHRA (@NIBSC_MHRA) October 29, 2018
Saturday, 27 October 2018
Advanced Technologies are Tackling the Global Lyme Epidemic
More than 300,000 new cases of Lyme disease, the most common tick-borne illness in the United States, are diagnosed each year. In a new interview with CMRubinWorld, Dr. Brian Fallon, Director of the Lyme and Tick-Borne Diseases Research Center at the Columbia University Irving Medical Center reveals that despite the challenges to find a cure for this complex, debilitating disease, precision medicine and biotechnology are accelerating the discovery of new tools with which doctors will be able to diagnose it and treat patients.
Read the full article here
CMRubinWorld’s award-winning series, The Global Search for Education, brings together distinguished thought leaders in education and innovation from around the world to explore the key learning issues faced by most nations. The series has become a highly visible platform for global discourse on 21st century learning, offering a diverse range of innovative ideas which are presented by the series founder, C. M. Rubin, together with the world’s leading thinkers.
For more information on CMRubinWorld
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology
Monday, 22 October 2018
Importance of Microbial Contamination Control
Tim
Sandle has written an editorial of the special edition of the Journal of GxP Compliance, dedicated to
pharmaceutical microbiology.
This
special edition captures some of the current themes and issues relating to
pharmaceutical microbiology and contamination control, and many of the points
required to develop a control strategy.
While
microbiology plays a role in drug development, through the application of
biotechnology (including the development of anti-infective agents and with the
manufacture of pharmaceutical products), a considerable part of the role of the
pharmaceutical microbiologist is with protecting pharmaceutical and healthcare
products from spoilage by microorganisms and thus protecting patients and
consumers. With both sterile and non-sterile products, the effects can range
from discoloration to the potential for fatality.
The
reference is:
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology
Monday, 8 October 2018
Disinfectant Efficacy Testing for Fungi on Non-Porous Surfaces: A Case Study
An
important aspect of the selection and evaluation of disinfectants is the
disinfectant qualification programme. After a disinfectant has been chosen
based on its chemical properties and expected performance/effectiveness, each
disinfectant should be assessed to ensure its efficacy (and for European
Medicines Inspectorate and U. S. FDA regulated premises this is mandatory).
Efficacy is demonstrated through performance testing to show that the
disinfectant is capable of reducing the microbial bioburden in either
suspension (planktonic state) or from cleanroom surfaces to an acceptable
level. The disinfectant efficacy validation should provide documented evidence
that the disinfectant demonstrates bactericidal, fungicidal, and/or sporicidal
activity necessary to control microbial contamination in the facility. This
chapter summarises the test requirements and the different standards that are
currently available.
A new paper of interest:
Regulatory
agencies expected the users of disinfectants within cleanrooms to evaluate the
efficacy of disinfectants. Various standards are available to guide the
microbiologist through this process. What is more difficult is the content of
some of the standards themselves because they have not been written
specifically for the healthcare sector or the pharmaceutical industry (more
typically they have evolved from the food, cosmetics or environmental control
sectors). It may be necessary for the microbiologist to adapt the standards to
suit practical situations (backing this up with a well-thought out rationale).
Another point to be considered before embarking on such validation is whether
all of the standards are to be replicated or whether experimental work required
by some of the standards can be provided by the manufacturer of the
disinfectants.
Surface
tests, however, are not straightforward. The approach presented here is based
on European surface test requirements; while other approaches differ slightly,
the overall methodologies are similar. Hence the approach here can be used as a
case study for others to evaluate against.
The
reference is:
For details see: Disinfection
Wednesday, 3 October 2018
Webinar: In Vitro Pyrogen Detection, the new trend
Want to know more about in vitro Pyrogen detection? Find out about our new Monocyte Activation Test ready-to-use kit. Discover the benefits
of the PyroMAT™ System, learn how to use it and go through a real-life case
study.
The PyroMAT™ system is the only cell-line based Monocyte Activation Test
(MAT) provided as a ready-to-use kit on the market: a new solution for
sensitive, robust, and easy-to-perform pyrogen test
Make the move to the monocyte activation
test—the only method that detects the full range of endotoxin and
non-endotoxin pyrogens and contributes to
the reduction of animal consumption for testing purposes.
Pharmaceutical Microbiology Resources
Tuesday, 2 October 2018
Webinar: Best Practices for Cleaning and Disinfection of Cleanrooms and Disinfection Validation
Webinar details:
Date: Thursday, 18 October 2018 | Time: 10:00 AM PDT, 01:00 PM EDT | Duration: 60 Minutes
Presenter: Dr. Tim Sandle, see: https://www.onlinecompliancepanel.com/webinar/Global-Best-Practices-for-Cleaning-and-Disinfection-of-Cleanrooms-and-Disinfection-Validation-505381
Points covered:
- What is cleaning and disinfection?
- How to select disinfectants?
- Global guidelines for disinfection in cleanrooms
- EU GMP (& draft Annex 1), USP <1072>, FDA aseptic processing guidance, PIC/S
- How to use disinfectants effectively
- Points for success
- Approaching disinfectant validation: Differences between European and U.S. standards
- Practical approach to disinfectant validation: what is best for pharma?Legal requirements for disinfectants: Europe and U.S.
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology
Monday, 1 October 2018
PyroMAT™ System: Have you heard about the latest solutions for pyrogen detection?
PyroMAT™ System: Have you heard about the latest solutions for pyrogen detection?
The PyroMAT™ system is the only cell-line based Monocyte Activation Test
(MAT) provided as a ready-to-use kit on the market: a new solution for
sensitive, robust, and easy-to-perform pyrogen test
Make the
move to the monocyte activation test—the only method that detects the
full range of endotoxin and non-endotoxin pyrogens and contributes to the reduction of animal consumption
for testing purposes.
Want to know more about our solutions? Join our live webinar on October the 25th
and find out more about the new PyroMAT™ System.
Thursday, 20 September 2018
EDQM publishes a new section dedicated to biotherapeutics
The
new biotherapeutics section on the EDQM website summarises Ph. Eur. Commission
activities and achievements in this field. In addition to clarification of the
role of Ph. Eur. monographs in the biosimilars regulatory pathway, it describes
the recently concluded P4-BIO pilot phase and the ongoing pilot phase on monoclonal
antibodies (“MAB pilot phase”), explaining the strategy followed by the Ph.
Eur. when setting requirements for the quality of this important class of
biotherapeutics. It also describes various levels of flexibility integrated
into Ph. Eur. texts, including those introduced recently to address the
structural complexity, heterogeneity and compound diversity derived from different
manufacturing processes of complex biotherapeutics.
Wednesday, 19 September 2018
How soil bacteria munch on plastics
Thin
mulch films made of polyethylene are used in agriculture in numerous countries,
where they cause extensive soil contamination. Researchers have now identified
an alternative: films made of the polymer PBAT biodegrade in soils.
Our
world is drowning in a flood of plastic. Eight million tons of plastic end up
in the oceans every year. Agricultural soils are also threatened by plastic
pollution. Farmers around the world apply enormous amounts of polyethylene (PE)
mulch films onto soils to combat weeds, increase soil temperature and keep the
soil moist, thereby increasing overall crop yields.
After
harvest, it often is impossible for farmers to re-collect the entire films,
particularly when films are only a few micrometers thin. Film debris then makes
its way into the soil and accumulates in the soil over time, because PE does
not biodegrade. Film residues in soils decrease soil fertility, interfere with
water transport and diminish crop growth.
In
their experiments, the researchers used PBAT material that was
custom-synthesised from monomers to contain a defined amount of the stable
carbon-13 isotope. This isotope label enabled the scientists to track the
polymer-derived carbon along different biodegradation pathways in soil.
Upon
biodegrading PBAT, the soil microorganisms liberated carbon-13 from the
polymer.
Using
isotope-sensitive analytical equipment, the researchers found that the
carbon-13 from PBAT was not only converted into carbon dioxide (CO2) as a
result of microbial respiration but also incorporated into the biomass of
microorganisms colonizing the polymer surface.
The
researchers are the first to successfully demonstrate -- with high scientific
rigor -- that a plastic material is effectively biodegraded in soils.
Because
not all materials that were labelled "biodegradable" in the past
really fulfilled the necessary criteria. "By definition biodegradation
demands that microbes metabolically use all carbon in the polymer chains for
energy production and biomass formation -- as we now demonstrated for
PBAT," says Hans-Peter Kohler, environmental microbiologist at Eawag.
The
definition highlights that biodegradable plastics fundamentally differ from
those that merely disintegrate into tiny plastic particles, for instance after
exposure of the plastic to sunlight, but that do not mineralise.
In
their experiment, the researchers placed 60 grams of soil into glass bottles
each with a volume of 0.1 litre and subsequently inserted the PBAT films on a
solid support into the soil.
After
six weeks of incubation, the scientists assessed the extent to which soil
microorganisms had colonised the PBAT surfaces. They further quantified the
amount of CO2 that was formed in the incubation bottles and how much of the
carbon-13 isotope the CO2 contained. Finally, to directly demonstrate the
incorporation of carbon from the polymer in the biomass of microorganisms on
the polymer surfaces, they collaborated with researchers from the University of
Vienna.
See:
Michael
Thomas Zumstein, Arno Schintlmeister, Taylor Frederick Nelson, Rebekka
Baumgartner, Dagmar Woebken, Michael Wagner, Hans-Peter E. Kohler, Kristopher
McNeill, Michael Sander. Biodegradation of synthetic polymers in soils:
Tracking carbon into CO2and microbial biomass. Science Advances, 2018; 4 (7):
eaas9024 DOI: 10.1126/sciadv.aas9024
Monday, 10 September 2018
New PIC/S Guidance Documents
The
following new PIC/S Guidance documents have been adopted:
PIC/S
Aide-Memoire on “CrossContamination in Shared Facilities” (PI 043- 1).
PIC/S
Guidelines on the formalised risk assessment for ascertaining the appropriate GMP
for excipients of medicinal products for human use (PI 045-1).
PIC/S
Guideline on setting health-based exposure limits for use in risk
identification in the manufacture of different medicinal products in shared
facilities (PI 046-1).
PIC/S
Guidelines on the principles of GDP for active substances for medicinal
products for human use (PI 047-1).
Also,
the following Chapters and Annex of the PIC/S GMP Guide have been revised:
- Chapter 3 on “Premises and Equipment”;
- Chapter 5 on “Production”;
- Chapter 8 on “Complaints and Product Recall”;
- Annex 17 on “Real Time Release Testing and Parametric Release”.
- The revised Chapters are based on the equivalent Chapters of the EU GMP Guide with some minor differences in terms of language.
Monday, 3 September 2018
GMP in Practice: Regulatory Expectations for the Pharmaceutical Industry
The fifth edition of the book "GMP in Practice: Regulatory Expectations for the Pharmaceutical Industry" is now available, at a special introductory price.
The book is written by James Vesper and Tim Sandle. As companies strive to harmonize global requirements for quality systems, the 5th edition of this text provides an overview of the 34 essential global cGMP requirements that are typically included in a modern pharmaceutical quality system, including data integrity and how they have evolved. Explore risk-related questions, delve into several expectations for each quality system element encompasses, and review real-world examples from cGMP regulations from the US FDA, Health Canada, the European Union, the World Health Organization, and the International Conference on Harmonization (ICH). See: https://store.pda.org/ProductCatalog/Product.aspx?ID=4511
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology
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