Manufacturing facility using validated lyophilizers.

3. Responsibilities

• Production Operator: Loads/unloads vials, monitors process, records data in BMR.
• Production Supervisor: Verifies parameters, ensures process compliance, signs BMR.
• QA Officer: Provides line clearance, verifies process steps and documentation.
• Engineering: Performs maintenance, calibration, and troubleshooting of lyophilizer.

4. Accountability

The Head – Production and Head – Quality Assurance are jointly accountable for adherence to the lyophilization process and compliance to regulatory standards.

5. Procedure

5.1 Preparation

1. Ensure lyophilizer is cleaned and sterilized as per validated procedure.
2. Verify the availability of the approved batch manufacturing record (BMR) and the product-specific lyophilization cycle parameters.
3. Check and confirm the completion of vial filling and partial stoppering.

5.2 Loading the Vials

1. Transfer partially stoppered vials from aseptic filling line to lyophilizer under LAF with QA clearance.
2. Arrange vials on trays in a uniform manner, avoiding contact with chamber walls.
3. Ensure the chamber door is sealed after loading and record loading details in Annexure-1.

5.3 Execution of Lyophilization Cycle

1. Select the validated program on the lyophilizer HMI (Human-Machine Interface).
2. Cycle stages typically include:
   • Freezing (-40°C to -50°C)
   • Primary Drying (sublimation under vacuum)
   • Secondary Drying (desorption at elevated temperature)
3. Monitor chamber temperature, shelf temperature, condenser temperature, and vacuum levels throughout the cycle.
4. Record all critical process parameters at defined intervals in Annexure-2.

5.4 Unloading and Final Stoppering

1. Upon completion of the cycle, initiate the stoppering mechanism within the lyophilizer chamber.
2. Break vacuum using sterile nitrogen or clean dry air as per product requirement.
3. Unload the fully stoppered lyophilized vials using aseptic precautions and transfer to sealing area.
4. Document unloading time, conditions, and operator name in Annexure-3.

5.5 Post-Run Cleaning and Maintenance

1. Clean the lyophilizer chamber, trays, and associated components with validated cleaning agents.
2. Dry all surfaces using sterile wipes and record cleaning details in Annexure-4.
3. Ensure logbooks are updated and system is ready for the next batch.

6. Abbreviations

• SOP: Standard Operating Procedure
• BMR: Batch Manufacturing Record
• LAF: Laminar Air Flow
• QA: Quality Assurance
• HMI: Human Machine Interface

7. Documents

1. Lyophilizer Loading Record – Annexure-1
2. Cycle Monitoring Log – Annexure-2
3. Unloading Record – Annexure-3
4. Lyophilizer Cleaning Log – Annexure-4

8. References

• WHO GMP Guidelines for Sterile Products
• ICH Q8 – Pharmaceutical Development
• 21 CFR Part 211 – Current Good Manufacturing Practice

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: Lyophilizer Loading Record

Date	Batch No.	No. of Vials	Operator	QA Checked By
18/06/2025	LYO-IV/025	20,000	Ajay Sharma	Sunita Reddy

Annexure-2: Cycle Monitoring Log

Time	Chamber Temp (°C)	Shelf Temp (°C)	Vacuum (mTorr)	Operator Initial
10:00	-42	-40	180	AS
12:00	-20	-18	90	AS

Annexure-3: Unloading Record

Date	Time	Operator	QA Verified By	Remarks
19/06/2025	09:30	Vikas Nair	Priya Joshi	All vials intact

Annexure-4: Lyophilizer Cleaning Log

Date	Cleaning Agent	Cleaned By	Verified By	Remarks
19/06/2025	IPA 70%	Rohit Desai	QA Officer	Clean and dry

Revision History

Revision Date	Revision No.	Details	Reason	Approved By
15/03/2022	1.0	Initial Release	New SOP	QA Head
18/06/2025	2.0	Updated procedure, annexures added	Annual Review	QA Head