The document discusses using 7QC tools for experiment design and problem solving. It lists 7QC tools like Pareto charts, histograms, process flow diagrams, check sheets, scatter diagrams, control charts, and run charts. These tools can be applied in design of experiments (DOE) to investigate the relationship between input attributes, process parameters, and output attributes. Minitab software can be used for DOE. Results from DOE like scatter diagrams can study the effect of parameters on quality attributes. Pareto charts can identify and prioritize problems, showing that 20% of causes often create 80% of issues. The document gives an example of using these tools to analyze quality problems with ACE tablets.

1. 7QC tools for Experiment Design and
Problem Solving
Surang Judistprasert
Bio-innova & Synchron co.,ltd

2. QbD - Regulatory insights ICH Q8 (R2)
 The product is designed to meet patient
requirements
The process is designed to consistently meet the product’s critical
quality attributes & is continuously monitored and updated to assure
consistent quality over time
The impact of starting materials and process parameters on
product quality is understood
Critical sources of process variability are identified and controlled
Good science leads to better quality product, fewer product rejects/recalls, and enhanced public
health protection

3. QbD - Regulatory insights ICH Q8
(R2) Pharmaceutical Development
“The level of development will depend on the complexity of
the process and the product and on the opportunities
chosen or wanted by the applicant.”
Proposed by applicant, and approved by regulator, based
on demonstrated product knowledge and process
understanding
Degree of regulatory flexibility is determined by the level and
relevance of the scientific knowledge provided

4. 7 Quality ControlTools
◦ Pareto chart
◦ Histogram
◦ Process flow diagram
◦ Check sheet
◦ Scatter diagram
◦ Control chart
 Run chart
◦ Cause and effect diagram

5. How to apply 7QC tools in DOE
 Cause and effect diagram

6. Process flow diagram

7. Check sheet
A series of multivariate analyses, including DoE, was
undertaken to investigate the relationship between the
input attributes, compression process parameters and
output attributes
DOE1 = screening all parameter for find no impact
parameters
DOE2 = investigate more fully impact parameter to
Quality attributes. Find target range of parameters
DOE3 = investigate impact of the range of input on
target process parameter

8. Minitab- Software for DOE

9. Result of DOE

10. Scatter diagram
Example for investigate range of
compression parameter
Study of effect parameter X
onY = scatter diagram e.g.
stability trend

11. Pareto diagram (80/20)
28
16
12 12
6
4 3
0
5
10
15
20
25
30
Loose
Threads
Stitching
flaws
Button
problems
Material
flaws
Vilfredo Pareto (1848-1923)
Italian economist
20% of the population has
80% of the wealth
Juran used the term “vital few,
trivial many”. He noted that 20%
of the quality problems caused
80% of the dollar loss.

12. Pareto Diagram
Pareto DiagramPareto Diagram
(No. of Occurrences)
Pareto DiagramPareto Diagram
(No. of Occurrences)
Used to prioritize
actions.(Used during
phases to monitor the
situation, analyze causes,
and review effectiveness of
an action.)
Used to identify and
prioritize a problem.
Used to review the effects of
an action taken.
Allows clarification of
important tasks.
Allows identification
of a starting point
(which task to start
with).
Allows projection of
the effects of a measure
to be taken
Method Usage Result

13. Histogram

14. Control chart – run chart
Run/trend

15. Benefit of 7QC tools
 Identifies problems
 Give importance for planning
 Stress to importance of the process
 Priorities task
 Encourage everyone to think
systematically

16. Example ACE tablets

17. Q&A