The document discusses terminology, objectives, types, protocols, and procedures for drug substance stability studies. It defines key terms like re-test date and period. It describes the three types of studies - accelerated, intermediate, and long term. It outlines the stability protocol including batch selection, storage conditions, testing frequency, and commitments. It also discusses stress testing to identify degradation products and evaluate the stability of molecules under various challenge conditions.
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A marketed product stability program fulfills registration
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label....
Stability studies should be planned on the
basis of pharmaceutical R&D and regulatory
requirements...
ICH Stability testing of new drug substances and products QA (R2) - 2015
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Mohammad Koosha
Rocio Monroy
Professor Peivand Pirouzi Inc. -
Copyright 2015 - Professor Peivand Pirouzi Inc., International Corporate Training, Canada
All rights reserved
The presentation will give an insight into ICH Q1A Stability testing of New drug products. Here the ppt is much focused on stability requirements for ANDA, no: of batches, storage conditions, testing frequency.
Quality Safety Efficacy Multidisciplinary (Q S E M)
ICH Q1 Stability
Case toxicity of ethylene glycol and diethylene glycol in cough syrup.
accelerated stability studies
constant interval method
Stability study of Pharmaceutical Products and Regulatory Requirements Md. Zakaria Faruki
A marketed product stability program fulfills registration
commitments and ensures that marketed product is
stable until expiry date stamped on product
label....
Stability studies should be planned on the
basis of pharmaceutical R&D and regulatory
requirements...
ICH Stability testing of new drug substances and products QA (R2) - 2015
Almudena Camacho
Mohammad Koosha
Rocio Monroy
Professor Peivand Pirouzi Inc. -
Copyright 2015 - Professor Peivand Pirouzi Inc., International Corporate Training, Canada
All rights reserved
The presentation will give an insight into ICH Q1A Stability testing of New drug products. Here the ppt is much focused on stability requirements for ANDA, no: of batches, storage conditions, testing frequency.
Quality Safety Efficacy Multidisciplinary (Q S E M)
ICH Q1 Stability
Case toxicity of ethylene glycol and diethylene glycol in cough syrup.
accelerated stability studies
constant interval method
ICH guidelines for stability studies of different formulation and active pharmaceuticals.
physical, chemical, microbial, toxicological therapeutic stability studies.
accelerated and intermediate, long term stability studies
by following the stability studies we can predict the expiry period and half life of product and avoid the toxic effect of the unstable product
Stability testing protocol for herbal products in a detailed review.It’s the ability of formulation to retain its physical, chemical, microbiological and toxicological parameter same as that time of manufacture .
Drug product remains within specifications established to ensure its identity, strength, quality and purity.
Stability – Chemical and Physical integrity of herbal medicinal products.
Over a given time period and under the influence of environmental factors including temperature, humidity and light.
To provide evidence on how the quality of active substance varies with time and environmental factors
To establish re- test period for active substance
To establish shelf life of finished products.
To recommend storage conditions.
To evaluate the efficacy of drug.
To develop suitable packing information for drug product
To submit stability information for regulatory agencies.
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The original physical properties namely appearance, uniformity, palatability, dissolution, and suspend ability are maintained.
Chemical stability study:-
Each and every active ingredient retains its chemical integrity as well as potency specified on label, within the specified limits.
It involves drug assay and determination of drug degradation.
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Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Biological screening of herbal drugs: Introduction and Need for
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Stability Studies
1. On Drug Substances
Author: Srikanth N
http://stabilitystudies.blogspot.com
4/30/2012 http://stabilitystudies.blogspot.com 1
2. Terminology
Re-test date
The date after which samples of the drug substance should be
examined to ensure that the material is still in compliance with the
specification and thus suitable for use in the manufacture of a given
drug product.
Re-test period
The period of time during which the drug substance is expected to
remain within its specification and, therefore, can be used in the
manufacture of a given drug product, provided that the drug substance
has been stored under the defined conditions.
Primary batch
A batch of a drug substance used in a formal stability study, from which
stability data are submitted in a registration application for the purpose
of establishing a re-test period .A primary batch of a drug substance
should be at least a pilot scale batch.
4/30/2012 http://stabilitystudies.blogspot.com 2
3. Terminology
Mass balance
The process of adding together the assay value and
levels of degradation products to see how closely these
add up to 100% of the initial value, with due
consideration of the margin of analytical error.
4/30/2012 http://stabilitystudies.blogspot.com 3
4. Objective
Stability studies are conducted to assesses the effect of
Tempeature, Humidity and Light and to assign the
retest period and to recommend the storage
conditions.
4/30/2012 http://stabilitystudies.blogspot.com 4
5. Types
Three types of Stability Studies
Accelerated
Studies designed to know the shortterm Excursions of
temperature on the drug Substances
Intermediate
Studies conducted, incase of failure in accelerated studies and
the conditions of temperature and humidity are in between
long term and accelerated.
Long term
Studies designed to check the stability of the drug substnace.
4/30/2012 http://stabilitystudies.blogspot.com 5
7. Batch Selection
Three Primary batches of drug susbtance are to be
kept for stability studies
Usually three commercial batches to be kept in studies
and the batches may be first three batches.
One add-on batch for every year. This might be the
first batch of that year
4/30/2012 http://stabilitystudies.blogspot.com 7
8. Container Closure System
Stability Studies to be conducted in the container
closures that are similar to the containers in which the
Drug susbtance is marketting.
For example, Itraconazole is stored in trasparent
polyethylene bag[primary packing] and which inturn
stored in black polyehtylene bag and finally in HDPE
container[secondary packing].
4/30/2012 http://stabilitystudies.blogspot.com 8
9. Specification
Stability analysis is perfomed for the test parameters
which are prone to change during the storage and are
likely to influence the Qality, safety and Efficacy.
4/30/2012 http://stabilitystudies.blogspot.com 9
10. Testing Frequency
Testing frequency for accelerated and long term as
follows
Accelerated: 0,1,2,3 and 6 Months
Long term: 0,3,6,9,12,18,24,36,48 and 60 Months
4/30/2012 http://stabilitystudies.blogspot.com 10
11. Storage Conditions
Type of study Accelerated Long term Intermediate
General 40°C±2°C, 25°C±2°C, 30°C±2°C,
Case 70±5% RH 60±5% RH 65±5% RH
Refrigeraed 25°C±2°C, 5°C±3°C --
60±5% RH
Freezer -20°C±5°C -- --
4/30/2012 http://stabilitystudies.blogspot.com 11
12. Sample Quantity
Sample Quantity is determined on the analytical
parameters under study
Specification Accepatance Quantity[G]
Crieteria
Description White to almost white 1 g [reusable]
power
Identification by IR Sample spectrum 300 mg
should be
concorddant with that
of the sample
spectrum
Loss on drying NMT 0.05% 1g
4/30/2012 http://stabilitystudies.blogspot.com 12
13. Sample Quantity
Specification Acceptance Crieteria Quantity{G}
Related Substances Monaamide impurity –NMT 0.15% 1g
Dimer Impurity-NMT 0.15%
Unknown impurity-NMT 0.10%
Total Impurity-NMT 1,0%
Assay by HPLC Between 98.0-102.0 % 1g
Total 3.3 g(rounded
to 4 g)
4/30/2012 http://stabilitystudies.blogspot.com 13
14. Sample Quantity
For accelerated Studies
Time points: 0,1,2,3 and 6 Months [Total 4 time point
excluding intial]
For each time point: 4 g
Total: 4 x 4 g = 16 g
For Long term Studies
Time points: 0,3,6,9,12,18,24,36,48 and 60 Months [Total
9 time point excluding intial]
For each time point: 4 g
Total: 9 x 4 g = 36 g
4/30/2012 http://stabilitystudies.blogspot.com 14
15. Sample Quantity
Accelerated : 16 g+ 5 g extra= 21 g
Long term: 36 g + 10g =46 g
Total = 67 g [rounded to 70 grams]
4/30/2012 http://stabilitystudies.blogspot.com 15
16. Storage Statements and Labelling
Statement condition Label statement
25ºC / 60% RH (Long term) Do not store above 25°C
40ºC / 75% RH (Accelerated term)
25ºC / 60% RH (Long term) Do not store above 25°C
30ºC / 65% RH (Intermediate, failure
at long term)
30ºC / 65% RH (Long term) Do not store above 30ºC
40ºC / 75% RH (Accelerated term)
5ºC +/- 3ºC Store in a refrigerator (2 to 8ºC)
-20ºC +/-5ºC Store in freezer
4/30/2012 http://stabilitystudies.blogspot.com 16
17. Stability Commitment
It is commitment given to the reulatory authorities or
customers.
All three batches of stability from production, studies
to be conducted through the assigned retest period.
Less than 3 batches, commitment to add the
immediate prodcution batches to make 3 batches and
continue through the retest period assigned.
No match from production, first three production
batches to be kept for stability studies continue
through the retest period assigned.
4/30/2012 http://stabilitystudies.blogspot.com 17
18. Stress Testing
Stress testing of the drug substance can help identify the
likely degradation products, which can in turn help
establish the degradation pathways and the intrinsic
stability of the molecule and/or validate the stability
indicating power of the analytical procedures used.
Stress testing to be carried out on a single batch of the drug
substance.
Parameters in stress testing
Acid Hydrolysis[0.1N HCl]
Base Hydrolysis[0.1N NaoH]
Oxidation[3% H2O2]
Temperature with Humidity
Photodegradation
4/30/2012 http://stabilitystudies.blogspot.com 18
19. Conditions
Study Chanllenge conditions Time Points
Acid/solution HCl (1.0N, RT, 70°C) Initial –7 days
Basic/Solution NaOH (1.0N, RT, 70°C) Initial –7 days
Oxidative/Solution H2O2+ Initiator 7 Days
Thermal 70°C/30% RH 6 weeks
Thermal/Humidity 70°C/75% RH 6 weeks
Photo (UV light)* 1,000 watt hrs/m2, RT 5 X ICH
Photo (Fluorescent 6 x 106 lux hrs, R.T. 5 X ICH
light)*
4/30/2012 http://stabilitystudies.blogspot.com 19
20. Others
Stability Evaluation
Data Variability and many more refer to
http://stabilitystudies.blogspot.com
4/30/2012 http://stabilitystudies.blogspot.com 20