sterile manufacturing areas where critical process parameters like temperature, pressure, humidity, filling volume, and sterilization cycles are monitored during the production of sterile injectable products.

3. Responsibilities

• Production Operator: Performs operations and ensures adherence to prescribed parameters.
• Engineering Staff: Maintains instrumentation and monitoring systems.
• QA Officer: Reviews data and ensures documentation compliance.

4. Accountability

Head – Manufacturing is accountable for ensuring implementation and adherence to real-time monitoring requirements and timely response to deviations.

5. Procedure

5.1 Identification of Critical Process Parameters

1. List CPPs based on product-specific risk assessments, process validation, and regulatory filings.
2. Typical parameters include:
   • Autoclave cycle temperature and pressure
   • Filling speed and volume accuracy
   • Reactor vessel temperature
   • Compressed air quality (dew point, pressure)
   • HEPA filter differential pressure

5.2 Real-Time Monitoring Systems

1. Ensure use of validated SCADA systems or DCS with 21 CFR Part 11 compliance.
2. Each CPP should be linked to alarms and interlocks where applicable.
3. All data must be backed up and archived with proper access control.

5.3 Monitoring During Manufacturing

1. Verify that sensors, transmitters, and software are calibrated and functional before batch initiation.
2. Record real-time data continuously or at defined intervals depending on parameter criticality.
3. Use the Critical Parameter Monitoring Log (Annexure-1) for manual recording, if applicable.

5.4 Review and Action on Out-of-Range Data

1. If any CPP deviates from limits:
   • Alert must be acknowledged immediately.
   • Investigate root cause and assess product impact.
   • Initiate deviation (Annexure-2) and inform QA.

5.5 Documentation and Archival

1. Ensure all records (automated and manual) are signed and reviewed.
2. Attach parameter trend charts with BMR for each batch.
3. Archive data for a minimum of 5 years or as per regulatory requirement.

6. Abbreviations

• SOP: Standard Operating Procedure
• CPP: Critical Process Parameter
• SCADA: Supervisory Control and Data Acquisition
• DCS: Distributed Control System
• BMR: Batch Manufacturing Record

7. Documents

1. Critical Parameter Monitoring Log – Annexure-1
2. Deviation Report Form – Annexure-2
3. Parameter Trend Summary Sheet – Annexure-3

8. References

• ICH Q8 – Pharmaceutical Development
• 21 CFR Part 211 – Current Good Manufacturing Practice
• WHO TRS 986 Annex 2 – GMP for Sterile Pharmaceutical Products

9. SOP Version

Version: 2.0

10. Approval Section

	Prepared By	Checked By	Approved By
Signature
Date
Name
Designation	Manufacturing Executive	QA Executive	Head QA
Department	Production	Quality Assurance	Quality Assurance

11. Annexures

Annexure-1: Critical Parameter Monitoring Log

Date	Parameter	Set Value	Observed	Status	Operator Initials
18/06/2025	Filling Volume (ml)	1.00	1.01	OK	RS

Annexure-2: Deviation Report Form

Date	Deviation ID	Description	Root Cause	Corrective Action	QA Remarks
17/06/2025	DEV-1021	Temperature spike in holding tank	Sensor lag	Sensor replaced	Reviewed

Annexure-3: Parameter Trend Summary Sheet

Batch No.	Parameter	Min	Max	Mean	Trend Observed
INJ-150625	Filling Volume	0.98	1.02	1.00	Stable

Revision History

Revision Date	Revision No.	Details	Reason	Approved By
02/01/2022	1.0	Initial Release	New SOP	QA Head
18/06/2025	2.0	Inclusion of trend analysis sheet and parameter alarm linkages	Annual Review	QA Head