Lyophilization Process Development and Cycle Design

Duration: 60 Minutes
This webinar will cover the process and benefits of using an empirical approach to design an optimized lyophilization cycle to improve the quality and consistency of the product while also reducing the cycle time and associated costs.
lyophilization process
Instructor: Jeff Schwegman
Product ID: 500022
Why Should you Attend:
Optimized lyophilization cycle design can be an extremely difficult and daunting task for the scientist that is unskilled or under skilled in the process. This is becoming even more prevalent as many of the molecules coming out of discovery are more complex, unstable, and require a very specific, multi component formulation to impart not only good chemical stability and physical stability to the active ingredient, but also good physical stability to the dried solids themselves. Unfortunately, many of the molecules that are used to help stabilize the chemical and physical stability of the active ingredient, impart poor physical stability to the dried solids and can make lyophilization cycle design difficult. The development scientist who understands and can apply these principles, will be much better equipped to develop robust cycles that can be used to produce quality products consistently, in the shortest amount of time possible, saving time and money. This seminar will start out with an introduction to thermal characterization including differential scanning calorimetry (DSC) and freeze-dry microscopy (FDM) and how the information gained from these techniques can be used as the foundation for optimized cycle design. Next, the seminar will discuss, in detail, the process of designing the freezing, primary, annealing (if used), and secondary drying protocols for the cycle. In each case, the process will be broken down to understand the correct choice of the different controllable lyopohilizer parameters including shelf temperature, chamber pressure, and hold times. Also discussed, will be some of the specialized tools that can be used to aid the development scientist in cycle development including, the sample thief, the Pirani gauge, and thermocouples.

Objectives of the Presentation:
To guide in the understanding and performance of:
  • Thermal characterization including DSC and FDM
  • Understanding the effects of working with Crystalline vs. Amorphous Components
  • The problem with working with a metastable glassy system and the use of annealing to correct this problem
  • Determining optimal shelf temperatures for the freezing step
  • Determining optimal shelf temperatures and chamber pressures for the primary drying step
  • Determining optimal shelf temperatures and chamber pressures for the secondary drying step
  • Characterization of the finished lyophilized product
Who can Benefit:
This webinar will provide valuable assistance to those companies involved in the handling of powders, lyophilized products, solid pharmaceutical dosage forms, and dried foods.

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Instructor Profile:
Jeff Schwegman, Ph.D. is currently the founder and chief executive officer of AB BioTechnologies (www.ab-biotech.com) where he develops formulations, lyophilization cycles, determines residual moisture by Karl Fischer, and provides thermal characterization studies including freeze-dry microscopy and DSC. Additionally, Dr. Schwegman specializes in speaking and consulting in parenteral pre-formulation, formulation, analytical, and lyophilization of both small molecules and large biomolecules. He also holds patents and develops new technologies within the lyophilization field. Dr. Schwegman received his BS in Biochemistry from Indiana University in 1992 and began working at Cook Imaging in Bloomington Indiana, where he gained experience in analytical, formulation and process development. In 1999 he began graduate study in the Department of Industrial and Physical Pharmacy at Purdue University under the direction of Dr. Steve Nail, where his focus of research involved studying changes in the physical structure of biological molecules during lyophilization.

Dr. Schwegman received his PhD from Purdue University in 2003, and returned to Bloomington where he worked at Baxter Pharmaceutical Solutions as a Research Scientist in the Pharmaceutical Development group. In November 2005, he left Baxter and formed BioConvergence LLC with 3 other founders which specialized in developing new formulations and manufacturing processes for parenteral products. In February 2008, he left BioConvergence, which has become a successful company, to form AB BioTechnologies. He is currently the course Director for a 3-day course called Lyophilization Technology which he teaches through the Center for Professional Innovation and Education. He routinely lectures around the world on formulation, stabilization and process development of lyophilized products.
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