We aim at providing pharmaceutical stability solutions that include the study of product-related factors that influence the quality of a drug, such as the:
Interaction of an API with excipients Identification and prevention of degradation pathways in product Container closure systems
All stability samples are stored under controlled conditions such as incubators and stability chambers for accelerated or long-term or intermediate stability studies. The suitability of a drug substance or a drug product for its intended use is defined by attributes such as identity, strength, and purity.
Thermal Stability
In general, the drug substance and drug product are evaluated under storage conditions (with appropriate tolerances) that test their thermal stability and if applicable, their sensitivity to moisture. The storage conditions and the lengths of studies are defined by regulatory guidelines.
Conditions
Drug Substances:
- Long term: 25°C ± 2°C/60% RH ± 5% RH or 5°C ± 3°C
- Accelerated: 40°C ± 2°C/75% RH ± 5% RH
Drug Product:
- Long term: 25°C ± 2°C/60% RH ± 5% RH or 30°C ± 2°C/75% RH ± 5% RH
- Intermediate: 30°C ± 2°C/65% RH ± 5% RH
- Accelerated: 40°C ± 2°C/75% RH ± 5% RH
Photostability
The intrinsic photostability characteristics of a new drug substance or drug product are assessed to demonstrate that light exposure does not result in unacceptable change. Usually, we conduct photostability testing for a single batch of the material selected as described under the selection of batches in the parent guideline. Under some circumstances, these studies can be repeated if certain variations and changes are made to the product (such as formulation and packaging). The repeat study helps us understand photostability characteristics determined at the time of initial filing and the type of variation and/or change made.
A systematic approach to photostability testing is recommended, based on studies such as:
- Tests on the drug substance
- Tests on the exposed drug product outside of the immediate pack
- Tests on the drug product in the immediate pack
- Tests on the drug product in the marketing pack
In-use Stability
Our in-use stability testing services help to establish the period during which a multi-dose product can be used while retaining quality within an accepted specification once the container is opened. The continued integrity of products in multi-dose containers after the first opening is an important quality issue.
Why Aurigene Pharmaceutical Services?
State-of-the-art infrastructure
Capability to perform various forms of stability testing
Other Services
Virtual Tour
Hyderabad R and D Center
Bangalore R and D Center
Drug Formulation Services
Resources
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Alternate end-game strategies towards Nirmatrelvir synthesis: Defining a continuous flow process for the preparation of an anti-COVID drug
2005
Scalable alternate end-game strategies for the synthesis of the anti-COVID drug molecule Nirmatrelvir (1,PF-07321332) have been described. The first involves a direct synthesis of 1 via amidation of the carboxylic acid 7 (suitably activated as a mixed anhydride with either pivaloyl chloride or T3P) with the ...
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Discovery of MAP855, an Efficacious and Selective MEK1/2 Inhibitor with an ATP-Competitive Mode of Action.
2005
Mutations in MEK1/2 have been described as a resistance mechanism to BRAF/MEK inhibitor treatment. We report the discovery of a novel ATP-competitive MEK1/2 inhibitor with efficacy in wildtype (WT) and mutant MEK12 models. Starting from a HTS hit, we obtained selective, cellularly active ...
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Synthesis of Anti-covid Drug Nirmatrelvir Using Flow Chemistry
2005
Synthesis of the anti-covid therapeutic Nirmatrelvir by using flow chemistry to enhance efficiency of amide to nitrile conversion in a functionally and Stereochemically Embellished environment. ...
Read More
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