new gel formulations developed at the R&D scale that require scaling up for process validation and full-scale production at the Gel Manufacturing facility.

3. Responsibilities

• Formulation Scientist: Initiates scale-up protocol and defines critical parameters.
• Process Engineer: Ensures translation of laboratory parameters to manufacturing equipment.
• QA Officer: Monitors compliance during scale-up batches and reviews documentation.

4. Accountability

The Head – R&D and Head – Manufacturing shall be accountable for ensuring proper execution and documentation of the scale-up activity.

5. Procedure

5.1 Pre-Scale-Up Assessment

1. Conduct a comprehensive review of the laboratory batch data including composition, processing conditions, pH, viscosity, spreadability, and stability.
2. Identify critical process parameters (CPPs) and critical quality attributes (CQAs) that may affect scale-up performance.
3. Perform risk assessment using tools like FMEA to predict potential deviations during scale-up.

5.2 Equipment Mapping

1. List all laboratory equipment used during gel formulation and identify their equivalents or alternatives in pilot and commercial scale.
2. Document volume ratios, mixing speeds, blade configurations, and heating/cooling systems.
3. Determine scale-up ratios (e.g., lab scale to 10x pilot scale) maintaining geometric and dynamic similarity where possible.

5.3 Pilot Batch Preparation

1. Prepare the first pilot-scale batch using the pre-approved scale-up batch record (Annexure-1).
2. Monitor mixing time, shear rate, deaeration efficiency, and temperature at each stage.
3. Perform in-process tests: pH, viscosity, and appearance.
4. Compare results with laboratory batch and record deviations if any.

5.4 Evaluation of Pilot Batch

1. Analyze samples for assay, microbial limits, physical properties, and preservative efficacy.
2. Conduct stability testing under accelerated and long-term conditions.
3. If results are satisfactory, proceed to commercial batch scale-up after QA approval.

5.5 Full-Scale Production

1. Execute the first commercial batch as per approved scale-up and batch manufacturing records.
2. Document all observations related to equipment, batch yield, in-process checks, and any challenges faced.
3. Generate a Scale-Up Report (Annexure-2) to capture process reproducibility and observations.

5.6 Change Control & Documentation

1. Initiate a formal change control if the process deviates from lab scale assumptions.
2. Update the master batch record (MBR) after successful commercial batch validation.
3. Submit final Scale-Up Summary to Quality Assurance for archiving and regulatory filing support.

6. Abbreviations

• SOP: Standard Operating Procedure
• CPP: Critical Process Parameter
• CQA: Critical Quality Attribute
• FMEA: Failure Mode Effect Analysis
• MBR: Master Batch Record

7. Documents

1. Scale-Up Batch Manufacturing Record – Annexure-1
2. Scale-Up Report Template – Annexure-2
3. Change Control Form – Annexure-3

8. References

• ICH Q8(R2) – Pharmaceutical Development
• US FDA Guidance for Industry – Process Validation
• Internal Formulation Development Records

9. SOP Version

Version: 2.0

10. Approval Section

	Prepared By	Checked By	Approved By
Signature
Date
Name
Designation	Jr. Production Chemist	QA Executive	Head – Manufacturing
Department	Gel Manufacturing	Quality Assurance	Manufacturing

11. Annexures

Annexure-1: Scale-Up Batch Manufacturing Record

Step	Parameter	Equipment Used	Operator Comments
Mixing	RPM/Time	100L Homogenizer	No issues

Annexure-2: Scale-Up Report Template

Formulation Code	Batch No.	Yield (%)	Observations	Conclusion
GF-002	SC001	98.5%	Minor viscosity shift	Acceptable

Annexure-3: Change Control Form

Change ID	Section Affected	Reason	Approval Status
CCF-0425	Mixing Speed	Scale translation	Approved

Revision History:

Revision Date	Revision No.	Details	Reason	Approved By
01/06/2022	1.0	Initial SOP release	New scale-up procedure	Head – R&D
02/06/2025	2.0	Added annexures and updated definitions	Process improvement	Head – R&D