AAPS PharmSciTech

, Volume 18, Issue 4, pp 1135–1157

A Systematic Approach of Employing Quality by Design Principles: Risk Assessment and Design of Experiments to Demonstrate Process Understanding and Identify the Critical Process Parameters for Coating of the Ethylcellulose Pseudolatex Dispersion Using Non-Conventional Fluid Bed Process

  • Bhaveshkumar H. Kothari
  • Raafat Fahmy
  • H. Gregg Claycamp
  • Christine M. V. Moore
  • Sharmista Chatterjee
  • Stephen W. Hoag
Research Article

DOI: 10.1208/s12249-016-0569-0

Cite this article as:
Kothari, B.H., Fahmy, R., Claycamp, H.G. et al. AAPS PharmSciTech (2017) 18: 1135. doi:10.1208/s12249-016-0569-0

ABSTRACT

The goal of this study was to utilize risk assessment techniques and statistical design of experiments (DoE) to gain process understanding and to identify critical process parameters for the manufacture of controlled release multiparticulate beads using a novel disk-jet fluid bed technology. The material attributes and process parameters were systematically assessed using the Ishikawa fish bone diagram and failure mode and effect analysis (FMEA) risk assessment methods. The high risk attributes identified by the FMEA analysis were further explored using resolution V fractional factorial design. To gain an understanding of the processing parameters, a resolution V fractional factorial study was conducted. Using knowledge gained from the resolution V study, a resolution IV fractional factorial study was conducted; the purpose of this IV study was to identify the critical process parameters (CPP) that impact the critical quality attributes and understand the influence of these parameters on film formation. For both studies, the microclimate, atomization pressure, inlet air volume, product temperature (during spraying and curing), curing time, and percent solids in the coating solutions were studied. The responses evaluated were percent agglomeration, percent fines, percent yield, bead aspect ratio, median particle size diameter (d50), assay, and drug release rate. Pyrobuttons® were used to record real-time temperature and humidity changes in the fluid bed. The risk assessment methods and process analytical tools helped to understand the novel disk-jet technology and to systematically develop models of the coating process parameters like process efficiency and the extent of curing during the coating process.

KEY WORDS

design of experiments and Pyrobutton® ethylcellulose fluid bed technology quality by design risk assessment 

Copyright information

© American Association of Pharmaceutical Scientists 2016

Authors and Affiliations

  • Bhaveshkumar H. Kothari
    • 1
    • 2
  • Raafat Fahmy
    • 3
  • H. Gregg Claycamp
    • 3
  • Christine M. V. Moore
    • 4
    • 5
  • Sharmista Chatterjee
    • 4
  • Stephen W. Hoag
    • 1
  1. 1.Department of Pharmaceutical Sciences, School of PharmacyUniversity of MarylandBaltimoreUSA
  2. 2.Amneal PharmaceuticalsBrookhavenUSA
  3. 3.Office of New Animal Drug Evaluation, Center for Veterinary MedicineUS Food and Drug AdministrationRockvilleUSA
  4. 4.Office of Process and Facilities, Center for Drug Evaluation and ResearchUS Food and Drug AdministrationSilver SpringUSA
  5. 5.Merck Research LaboratoriesWest PointUSA

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