SOP for Incorporation of Chelating Agents in Lyophilized Products

Standard Operating Procedure for Incorporation of Chelating Agents in Lyophilized Products

1) Purpose

This SOP outlines the procedure for incorporating chelating agents into lyophilized products to stabilize metal-sensitive active ingredients by binding metal ions that could lead to degradation.

2) Scope

This SOP applies to formulation scientists, production operators, and QA personnel involved in the preparation of lyophilized products that require chelating agents to prevent metal ion-induced degradation.

3) Responsibilities

Formulation Scientists: Responsible for selecting appropriate chelating agents based on the formulation requirements.
Operators: Responsible for incorporating chelating agents into the formulation as outlined in the Batch Manufacturing Record (BMR).
QA: Responsible for verifying the addition of chelating agents and ensuring accurate documentation.

4) Procedure

4.1 Selection of Chelating Agents

4.1.1 Criteria for Selection

4.1.1.1 Chelating agents must be compatible with the formulation and should not interfere with the activity of the active ingredients. Common agents include EDTA (ethylenediaminetetraacetic acid) and citric acid.

4.2 Incorporation of Chelating Agents

4.2.1 Weighing and Dispensing

4.2.1.1 Weigh the chelating agents using a calibrated balance as specified in the BMR.
4.2.1.2 Add the chelating agents to the formulation solution while stirring to ensure uniform distribution.

4.2.2 Mixing and Homogenization

4.2.2.1 Stir the solution using a mechanical stirrer until the chelating

agents are fully dissolved.

4.2.2.2 Homogenize the mixture if necessary to ensure uniformity across the entire solution.

4.3 Filtration and Filling

4.3.1 Filter the solution using a sterile 0.22-micron filter and fill into vials as per the BMR for lyophilization.

4.4 Documentation

Record all steps, including weighing, chelating agent addition, and filtration, in the Chelating Agent Incorporation Logbook. QA must verify all entries.

5) Abbreviations

BMR: Batch Manufacturing Record

6) Documents

Chelating Agent Incorporation Logbook

7) References

Pharmacopoeial guidelines for chelating agents in pharmaceutical formulations

8) SOP Version

Version 1.0

Annexure

Chelating Agent Incorporation Logbook Template


  
    Date
    Chelating Agent Name
    Batch No.
    Quantity
    Operator Initials
    QA Verification
  
  
    DD/MM/YYYY
    Chelating Agent Name
    Batch Number
    Quantity (grams)
    Operator Name
    QA Initials

Date	Chelating Agent Name	Batch No.	Quantity	Operator Initials	QA Verification
DD/MM/YYYY	Chelating Agent Name	Batch Number	Quantity (grams)	Operator Name	QA Initials