A Non-destructive Quantitative Transmission Raman Spectroscopy Method for Active Pharmaceutical Ingredient in Drug...

Area of Science:

• Pharmaceutical Sciences
• Analytical Chemistry
• Spectroscopy

Background:

• Regulatory agencies like the FDA require compatibility and stability studies for drug products administered via dosing vehicles.
• Traditional sample preparation for these studies is labor-intensive, error-prone, and time-consuming, especially with viscous food matrices.
• In-solution degradation of active pharmaceutical ingredients (APIs) within dosing vehicles introduces analytical errors.

Purpose of the Study:

• To develop and validate non-destructive analytical methods for assessing drug product stability in dosing vehicles.
• To overcome the challenges associated with traditional sample preparation in drug-vehicle compatibility studies.
• To provide a more efficient and reliable approach for in-use stability testing.

Main Methods:

• Exploration and development of Near-Infrared (NIR) and Raman spectroscopy for non-destructive analysis.
• Development and calibration of a transmission Raman chemometrics model.
• Model calibration using samples with varied API content, water content, and particle size distribution.

Main Results:

• The developed transmission Raman chemometrics model demonstrated accuracy, linearity, selectivity, and robustness.
• Non-destructive NIR and Raman methods were successfully applied to drug product powder formulations in dosing vehicles.
• The study confirmed the feasibility of using these spectroscopic techniques for stability assessments.

Conclusions:

• Non-destructive NIR and Raman spectroscopy significantly ease laboratory burdens for in-use stability studies.
• These methods offer a streamlined approach for drug-vehicle compatibility assessments across all development phases.
• The developed techniques support various clinical preparation and usage scenarios, enhancing pharmaceutical analysis.