SOP Guide for Pharma

Gel Manufacturing: SOP for Environmental Monitoring Program in Gel Manufacturing Area – V 2.0

Gel Manufacturing: SOP for Environmental Monitoring Program in Gel Manufacturing Area – V 2.0

Standard Operating Procedure for Environmental Monitoring Program in Gel Manufacturing Area

Department Gel Manufacturing
SOP No. SOP/GM/142/2025
Supersedes SOP/GM/142/2022
Page No. Page 1 of 12
Issue Date 09/06/2025
Effective Date 11/06/2025
Review Date 09/06/2027

1. Purpose

To define the procedure for the environmental monitoring (EM) program in the gel manufacturing area to ensure compliance with cGMP and regulatory standards for controlled environments.

2. Scope

This SOP applies to all areas involved in gel manufacturing where environmental control is essential, including cleanrooms, filling zones, storage areas, gowning zones, and airlocks.

3. Responsibilities

  • Microbiology Lab: Conducts viable and non-viable environmental monitoring.
  • QA Department: Reviews trends, reports deviations, and ensures compliance with regulatory norms.
  • Engineering Department: Maintains HVAC and cleanroom integrity.
  • Production
Department: Facilitates access and supports corrective actions if excursions occur.

4. Accountability

The Head – Quality Assurance is accountable for ensuring the monitoring program is implemented, reviewed, and updated as per risk-based strategies and current guidelines.

5. Procedure

5.1 EM Program Elements

  1. Design the EM program based on cleanroom classification (Grade A to D).
  2. Define sampling locations based on risk assessment and operational impact.
  3. Develop sampling frequency, acceptance criteria, and action/alert limits.

5.2 Types of Monitoring

  1. Non-Viable Monitoring: Using particle counters for 0.5µm and 5.0µm particles.
  2. Viable Air Monitoring: Using active air samplers with appropriate media.
  3. Surface Monitoring: Settle plates, contact plates, and swabs.
  4. Personnel Monitoring: Glove prints, garment swabs post operation.

5.3 Sampling and Incubation

  1. Perform sampling under dynamic and static conditions.
  2. Label plates with area code, date, and operator initials.
  3. Incubate plates: 30–35°C for 3 days and 20–25°C for 5 days (as per organism type).

5.4 Data Recording and Trending

  1. Document all readings in EM logbooks and software (if automated).
  2. Perform monthly trend analysis and highlight deviations.
  3. Investigate and document any excursions beyond alert/action limits.

5.5 Corrective and Preventive Actions (CAPA)

  1. Initiate deviation or incident report for excursions.
  2. Identify root cause and implement CAPA with QA oversight.
  3. Repeat sampling post-CAPA to confirm effectiveness.

5.6 Review and Updates

  1. Review EM program annually or based on major facility/process changes.
  2. Update sampling plans, locations, or limits as per review findings.

6. Abbreviations

  • EM: Environmental Monitoring
  • CFU: Colony Forming Unit
  • CAPA: Corrective and Preventive Action
  • QA: Quality Assurance
  • HVAC: Heating, Ventilation, and Air Conditioning

7. Documents

  1. Environmental Monitoring Protocol – Annexure-1
  2. EM Log Sheets – Annexure-2
  3. EM Trend Report – Annexure-3
  4. CAPA Forms – Annexure-4

8. References

  • EU GMP Annex 1 – Manufacture of Sterile Medicinal Products
  • WHO TRS 961 – GMP for HVAC and Environmental Control
  • ISO 14644-1 and ISO 14698

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: EM Protocol Format

Area/Zone
Classification
Sampling Type Air/Surface/Personnel
Frequency
Alert/Action Limits

Annexure-2: EM Log Sheet

Date Location Sample Type Reading Remarks

Annexure-3: EM Trend Report Template

Month Area CFU Count Trend Deviation Noted

Annexure-4: CAPA Form Template

Deviation Ref No.
Root Cause
Corrective Action
Preventive Action
Closure Date

Revision History

Revision Date Revision No. Change Description Reason Approved By
20/05/2022 1.0 Initial release New SOP QA Head
09/06/2025 2.0 Updated scope, sampling types, and CAPA format Periodic revision QA Head
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