Brief Description
This Performance Qualification (PQ) Protocol is prepared to confirm that the Rapid Mixer Granulator (RMG) works consistently and gives reliable performance during routine use. The RMG is used for dry powder mixing and wet granulation in the granulation area. Its product-contact parts are made of SS-316, and the machine uses an impeller and chopper for proper mixing. Before qualification, a calibrated stopwatch and tachometer are required. During PQ, the machine is checked for impeller and chopper RPM and product assay. The study is performed on three batches. RPM is verified at slow and fast speed under empty condition, then the product is loaded as per machine capacity and operated at set parameters. Samples are collected from upper, middle, and lower locations after mixing. Any deviation or non-compliance must be recorded, investigated, and evaluated by Quality Assurance before final conclusion and qualification approval. This helps confirm uniform mixing and equipment performance.
Brief Description
This Performance Qualification (PQ) Protocol is prepared to confirm that the Rapid Mixer Granulator (RMG) works consistently and gives reliable performance during routine use. The RMG is used for dry powder mixing and wet granulation in the granulation area. Its product-contact parts are made of SS-316, and the machine uses an impeller and chopper for proper mixing. Before qualification, a calibrated stopwatch and tachometer are required. During PQ, the machine is checked for impeller and chopper RPM and product assay. The study is performed on three batches. RPM is verified at slow and fast speed under empty condition, then the product is loaded as per machine capacity and operated at set parameters. Samples are collected from upper, middle, and lower locations after mixing. Any deviation or non-compliance must be recorded, investigated, and evaluated by Quality Assurance before final conclusion and qualification approval. This helps confirm uniform mixing and equipment performance.
Critical Control Parameters (CCPs) & Critical Quality Attributes (CQAs)
Based on the RMG Performance Qualification Protocol, the following parameters are important during qualification. The protocol specifically requires RPM verification, controlled mixing time, operation at set product parameters, and testing of samples collected from different locations.
| Critical Control Parameter | What to Control / Check | Purpose |
|---|---|---|
| Impeller RPM | Slow and fast speed | Ensures proper mixing |
| Chopper RPM | Slow and fast speed | Supports proper wet granulation |
| Mixing Time | As per approved product parameter | Prevents under- or over-mixing |
| Batch Load | As per machine capacity | Ensures consistent RMG performance |
| Operating Parameters | Set as per product requirement | Maintains repeatable processing |
| Sampling Locations | Upper 3, Middle 4, Lower 3 points | Confirms performance throughout the batch |
Critical Quality Attributes
| Critical Quality Attribute | Requirement / Check | Importance |
|---|---|---|
| Assay | Test samples after mixing | Confirms required drug content |
| Mixing Uniformity | Compare assay results from different sampling locations | Helps confirm uniform distribution throughout the batch |
Note: The protocol explicitly lists RPM and Assay as PQ tests. Mixing uniformity is a reasonable interpretation of the multi-location sampling procedure, but it is not separately named as a CQA in the uploaded protocol.
FMEA – Performance Qualification of Rapid Mixer Granulator (RMG)
The protocol requires checking RPM, assay, three-batch performance, product loading, sampling from upper/middle/lower locations, and use of calibrated stopwatch and tachometer.
The failure modes and risk scores below are a risk-assessment interpretation based on these protocol activities.
Scoring: Severity (S), Occurrence (O), Detection (D): 1 = Low, 5 = High. RPN = S × O × D
| S.No. | Process / Parameter | Possible Failure Mode | Possible Effect | Possible Cause | S | O | D | RPN | Recommended Control / Action |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Impeller RPM | RPM too low/high | Poor or excessive mixing | Incorrect speed setting or equipment issue | 4 | 2 | 2 | 16 | Verify RPM using calibrated tachometer |
| 2 | Chopper RPM | Chopper speed incorrect | Improper wet granulation | Wrong setting or mechanical problem | 4 | 2 | 2 | 16 | Check slow and fast RPM before operation |
| 3 | Mixing Time | Mixing time incorrect | Non-uniform blend | Incorrect timer setting/operator error | 4 | 2 | 2 | 16 | Use calibrated stopwatch and follow SOP |
| 4 | Batch Load | Too much or too little material loaded | Poor mixing performance | Incorrect batch quantity | 4 | 2 | 3 | 24 | Load material according to machine capacity |
| 5 | Mixing Uniformity | Material not uniformly mixed | Variation in assay | Improper RPM, time or loading | 5 | 2 | 3 | 30 | Collect samples from upper, middle and lower locations |
| 6 | Assay | Assay result outside limit | Product quality may be affected | Poor mixing or sampling variation | 5 | 2 | 2 | 20 | Test samples and investigate any failure |
| 7 | Sampling | Samples not taken from defined locations | Incorrect assessment of mixing | Sampling procedure not followed | 4 | 2 | 3 | 24 | Follow specified 3 upper, 4 middle and 3 lower sampling points |
| 8 | Calibration | Stopwatch/tachometer not calibrated | Incorrect qualification results | Calibration expired | 4 | 2 | 2 | 16 | Verify calibration status before PQ |
| 9 | Three-Batch PQ | Less than three batches tested | Reproducibility not demonstrated | Incomplete qualification execution | 4 | 2 | 2 | 16 | Perform PQ on three batches as required |
| 10 | Deviation Handling | Deviation not investigated | Equipment may be wrongly qualified | Poor documentation or review | 5 | 2 | 3 | 30 | Record deviation, investigate and obtain QA evaluation |
Highest-Risk Areas
The comparatively higher risks are mixing uniformity and deviation handling, with an illustrative RPN of 30 each. Proper multi-location sampling, assay testing, calibrated instruments, QA review, and investigation of deviations are therefore important before accepting the RMG for routine use. The protocol requires deviations and non-conformances to be investigated and documented in the qualification report.
Questions & Answers
1. What is the purpose of this PQ Protocol?
The purpose is to confirm that the Rapid Mixer Granulator (RMG) works consistently and reliably within its operating range.
2. What equipment is covered in this protocol?
This protocol covers the Performance Qualification of the Rapid Mixer Granulator (RMG).
3. Where is the RMG installed?
The RMG is installed in the Granulation Area.
4. What is the main use of the RMG?
The RMG is used for dry powder mixing and wet mass granulation.
5. What is the material of the product-contact parts?
The product-contact parts are made of SS-316.
6. Which departments are involved in PQ activities?
Quality Assurance, Production, Quality Control, and Engineering are involved in the qualification activity.
7. What is the role of Quality Assurance?
QA prepares, reviews, approves, compiles, coordinates, and monitors the Performance Qualification activity.
8. When is requalification required?
Requalification is required once every two years, after a major breakdown or modification, and after a change in equipment location.
9. Which calibrated instruments are required before PQ?
A calibrated stopwatch and calibrated tachometer are required.
10. What tests are performed during PQ?
The protocol specifies RPM and assay tests.
11. How many batches are tested during PQ?
The PQ test is carried out on three batches.
12. Which RPMs are checked?
The RPM of the impeller and chopper is checked at slow and fast speed under empty condition.
13. How is the product loaded during the test?
The product is loaded according to the batch size and machine capacity.
14. From where are samples collected?
Samples are collected from the upper, middle, and lower locations after mixing. The protocol specifies 3 upper, 4 middle, and 3 lower sampling points.
15. What happens if a deviation is observed?
The deviation is reported to the Head QA, documented, investigated, and its impact is evaluated before the final conclusion.
16. Which documents should be attached with the PQ?
Calibration certificates and QC raw data should be attached.
17. What is the final purpose of RMG Performance Qualification?
The final purpose is to provide documented evidence that the RMG performs consistently and is suitable for routine operation.