Detection of N-Nitroso-N,N-dimethylamine (NDMA) in 2018 in Valsartan, a medicine for blood pressure control, followed by similar observations in Losartan-, Ranitidine- and Metformin- containing products led to temporarily limited availability of medications around the globe and initiated massive risk-assessment campaign for all human medicines containing chemically synthesized APIs.
The scope of the risk-assessment campaign and multiple possible root causes of the contamination create imminent need of robust and reliable determination of Nitrosamines content in various types of matrices. Quinta-Analytica decided to contribute to patients’ safety and to support the pharmaceutical industry by developing versatile proprietary ULPC/MS/MS method for quantitative determination of Nitrosamines under full GMP conditions.
The method is based on isotopically labeled internal standard and was inspired by the methods published by the regulatory bodies. Slight modification of its parameters and/or the sample preparation allows the customization to the specific matrix. The method has been successfully applied to APIs, solid dosage forms, solutions for infusion, oral solutions, semi-finished products or excipients.
Our experience goes far beyond N-Nitroso-N,N-dimethylamine (NDMA) determination and, till the date, we have practical experience with twenty-four Nitrosamines, including nitrosamine analogues, which confirms the versatility of the method. The push for decreasing the limits bellow the interim limits set upon maximum daily intake requires LOQ values in single digits ppb in some cases which is on the edge of technical capabilities of UPLC/MS/MS instrumentation. Therefore, Quinta-Analytica acquired HR-MS which allows us to address the latest requirements. Limit tests will be implemented after the final specification and methodologies will be codified by the regulatory bodies.
Current range of Nitrosamines applications validated by Quinta-Analytica:
Product (API and/or FDF)
Nitrosamine impurities controlled by our method
NDMA, NDEA, NMBA
Losartan Free Base
NDMA, NDEA, NMBA, NEIPA, NDIPA, NEMA, NDPA, NDBA
NDMA, NDEA, NMBA, NEIPA, NDIPA, NDBA
nitrosamines defined by the customer
Nitrosamine abbreviations used:
There is a dedicated cross-functional team dedicated to the Nitrosamines project which assures tailoring the project scope to the customer’s needs and secures delivery of the results within the agreed timeframe. Based on the requirement, we provide either indicative screening results or validated GMP results. The standard scope of the validation program is: SST, Selectivity, LOQ, Linearity, Precision and intermediate precision (n=12), Accuracy, Range, Robustness and Stability.
Examples of typical lead times:
Get in touch with one of our Nitrosamine experts today, or use the contact information for our commercial team below, and see how we can create the perfect solution for you.
Broad portfolio of active ingredients from reliable, established manufacturers, guaranteed by our expertise.
Based on isotopically labeled standards, our customizable in-house detection methods are available immediately.
Expertise in helping to compile dossiers and drug registration processes.
Oversight of participant health and correctness of treatments during clinical studies.
Monitoring of daily routine to detect unrecognized adverse events, plus assess and ensure drug safety.
Thorough dossier M3 data audit to ensure consistency and compliance with regulatory requirements.
Via our partnering CRO in Russia we can help you to perform clinical trials to apply for Russian MA.
As an EU based company we are well-placed to help create & develop your IMPD.
It's not an exhaustive list so if you don't see what you need, contact us.
Our Sales team is happy to help: firstname.lastname@example.org
Please use the contact details or form below.
+420 242 454 311