Wednesday, July 10, 2024
What are skills required to review documents
Difference between review and verification
Wednesday, July 3, 2024
Drug shortage Supply Chain Risk Assessment by EMA
Tuesday, June 25, 2024
End Product Testing versus Process Validation
End product testing versus validation? This is a question that is frequently discussed in the GMP environment. The argument is that if the specification of the end product fits, which is even included in the marketing authorisation, then the process must also fit. Otherwise the product would not conform to the specification.
It's not just the FDA that sees things differently. But the FDA also addresses this issue directly in a Warning Letter.
The FDA criticised the fact that no process validation could be demonstrated for a product that was manufactured, released and distributed. Specifically, it was criticised that it could not be shown that the manufacturing process was controlled with regard to a constant yield with consistent quality.
The company's response is interesting. It suggested analysing the release data in terms of safety and efficacy and then showing a summary of the release data in terms of content and microbiological count.
This answer was not well received. It was criticised that the company could not demonstrate sufficient certainty that batches had sufficient strength, quality and purity. The lack of a stability monitoring plan and a plan for dealing with complaints was also criticised.
Following the FDA quotes from its Process Validation Guidance what validation means - starting with development, through the actual process validation (called PPQ in the USA) and the "stage of control" in phase three of a process validation cycle. Prior to market supply, process qualification studies are important for the FDA and subsequent monitoring of the process. As is often the case in FDA Warning Letters on the subject of process validation, the FDA Process Validation Guidance is also cited with a link.
Specifically, the FDA requires
- a complete list of all products that are still on the US market within the expiry
- a plan that provides an overview of the above-mentioned products, the responsibilities of the reserved samples and their storage. The stability programme and complaints received and how to deal with them.
- a plan for dealing with products that have quality defects, including how customer get notified and recalls are handled.
Conclusion: The argument that the final product testing shows that the manufacturing process works is not accepted in this Warning Letter. Validation is mandatory.
Example for common cause variation in Stastical process control
Special cause variation in Stastical Process Control
A Guide to Statistical Process Control (SPC)
Wednesday, June 19, 2024
Sun Pharma's Dadra unit gets USFDA warning letter
Monday, June 17, 2024
Warning Letter to Indian Sterile Manufacturer due to egregious GMP Deficiencies 17.06.2024
Friday, June 14, 2024
CHMP confirms Suspension of Marketing Authorizations with Studies of Synapse Labs
The re-examination by the Committee for Medicinal Products for Human Use (CHMP) confirms the suspension of marketing authorizations with bioequivalence studies of Synapse Labs Pvt. Ltd.
In July 2023, critical inspection findings at Synapse Labs Pvt. Ltd, a contract research organization (CRO) in India, led the EMA to initiate an Article 31 referral procedure to assess the impact on the benefits and risks of medicinal products authorized on the basis of studies conducted at the CRO. After reviewing all information for the over 400 medicinal products tested by Synapse Labs Pvt. on behalf of EU companies, the CHMP has recommended the suspension for numerous generic marketing authorizations. For some marketing authorizations, sufficient data are available to demonstrate bioequivalence. For all other medicinal products, no or insufficient data were available to demonstrate bioequivalence. National authorities can defer the suspension of medicinal products of critical importance for a maximum of two years and companies must submit the required bioequivalence data for these medicinal products within one year. Applicants and marketing authorization holders have requested the CHMP to re-examine its opinion. In March 2024, the CHMP confirmed and adopted its final opinion.
This confirmation concludes the re-examination for some of the medicinal products concerned. The opinion will now be forwarded to the European Commission, which will take a final decision that is legally binding in all EU Member States.
Gap Assessment Schedule M
To conduct a **gap assessment** between the **old Schedule M** and the **revised Schedule M** of the **Drugs and Cosmetics Rules, 1945**, we...
-
An FDA Warning Letter is a formal communication from the US Food and Drug Administration (FDA) notifying a company or individual of regulato...
-
The significant violations of CGMP regulations for finished products, which are mentioned in the Warning Letter, are listed as follows: ...
-
The company experienced seven out-of-limit (OOL) events for microbial content in a system used to generate a major component of drug product...