AQbD-Based UPLC-ELSD Method for Quantifying Medium Chain Triglycerides in Labrafac™ WL 1349 for Nanoemulsion...

Area of Science:

• Analytical Chemistry
• Pharmaceutical Sciences

Background:

• Lipid-based excipients like Labrafac™ WL 1349 are crucial for nanoemulsion formulations.
• Regulatory bodies like ICH (International Council for Harmonisation) have updated guidelines (Q2 (R2), Q14) for analytical method validation and lifecycle management.
• Accurate quantification of Medium-Chain Triglycerides (MCTs) is essential for quality control of these excipients.

Purpose of the Study:

• To develop and validate a robust Ultra-Performance Liquid Chromatography with Evaporative Light Scattering Detection (UPLC-ELSD) method for quantifying MCTs in Labrafac™ WL 1349.
• To implement Analytical Quality by Design (AQbD) principles for method development and lifecycle management.
• To ensure the method meets stringent regulatory standards for pharmaceutical excipient analysis.

Main Methods:

• Method development utilized Analytical Quality by Design (AQbD) principles, optimizing key parameters like mobile phase composition, column type, flow rate, and temperature.
• A Waters Acquity HSS T3 column was used under specific conditions: 33 °C, methanol/water mobile phase with formic acid, and a flow rate of 0.41 mL/min.
• Forced degradation studies (hydrolytic, oxidative, thermal) were conducted to assess method stability and robustness.

Main Results:

• The UPLC-ELSD method demonstrated excellent quantification of MCTs across a wide concentration range, fitting a cubic model.
• Optimal chromatographic conditions were established, ensuring method robustness and reliability.
• Forced degradation studies confirmed the method's suitability for analyzing samples under various stress conditions, including stability testing.

Conclusions:

• The developed UPLC-ELSD method, guided by AQbD, provides a validated, regulatory-compliant, and cost-effective approach for MCT quantification in lipid excipients.
• This method supports the lifecycle management of analytical procedures for lipid-based excipients used in nanoemulsion applications.
• The AQbD-driven approach enhances scientific understanding and facilitates efficient quality control of pharmaceutical ingredients.