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A case study: application of statistical process control tool for determining process capability and sigma level.
Vikram Chopra1, Mukesh Bairagi, P Trivedi
1Ranbaxy Laboratories Ltd., Dewas, M.P.
PDA Journal of Pharmaceutical Science and Technology
|April 12, 2012
Summary
Statistical process control (SPC) enhances pharmaceutical tablet production quality. This study applies risk assessment and statistical tools to determine process capability and identify areas for continuous quality improvement towards six sigma standards.
Area of Science:
- Pharmaceutical Manufacturing
- Quality Control
- Statistical Analysis
Background:
- Statistical Process Control (SPC) is crucial for process measurement and variation analysis.
- Regulatory bodies worldwide support SPC for enhanced process control and understanding.
- SPC is a novel yet advantageous tool for pharmaceutical tablet production quality assessment.
Purpose of the Study:
- To determine the sigma process capability of tablet production processes.
- To assess process quality using statistical methods and identify areas for improvement.
- To evaluate the application of quality improvement and risk assessment for achieving six sigma-capable processes.
Main Methods:
- Risk assessments were employed for selecting critical quality attributes.
- Normal probability distributions, control charts, and capability charts were utilized for process analysis.
- Data interpretation and graph trends were used to study process stability and critical quality attributes.
Main Results:
- The study assessed production processes at the sigma level, identifying out-of-specification attributes.
- Interpreted data provided insights into process stability, variability, and trends.
- Pareto charts identified the most variable and least capable processes for targeted improvement.
Conclusions:
- Statistical Process Control is vital for pharmaceutical tablet production quality.
- The study demonstrates the effectiveness of SPC in assessing and improving process capability.
- Application of SPC principles facilitates continuous quality improvement and the development of six sigma-capable processes.
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