SOP for Preparation of Nanoparticle-Based Lyophilized Formulations

Standard Operating Procedure for Preparation of Nanoparticle-Based Lyophilized Formulations

1) Purpose

This SOP outlines the procedure for preparing nanoparticle-based formulations intended for lyophilization, ensuring the stability and uniform dispersion of nanoparticles.

2) Scope

This SOP applies to all personnel involved in the preparation of nanoparticle-based lyophilized formulations, including formulation scientists and operators.

3) Responsibilities

Formulation Scientists: Responsible for designing the nanoparticle-based formulation and selecting appropriate stabilizers.
Operators: Responsible for preparing the nanoparticle solution following the Batch Manufacturing Record (BMR).
QA: Responsible for verifying the preparation process and documentation.

4) Procedure

4.1 Preparation of Nanoparticle Solution

4.1.1 Equipment Setup

4.1.1.1 Ensure that all equipment (e.g., homogenizers, mixers) is cleaned, sanitized, and calibrated before use.
4.1.1.2 Prepare sterile containers for the nanoparticle solution.

4.1.2 Weighing and Dispensing of Nanoparticles

4.1.2.1 Weigh the nanoparticles and excipients using a calibrated balance according to the BMR.
4.1.2.2 Dispense the nanoparticles into a suitable solvent (e.g., water for injection, WFI).

4.1.3 Solubilization and Mixing

4.1.3.1 Use mechanical stirring to evenly disperse the nanoparticles throughout the solution.
4.1.3.2 Ensure that the nanoparticles are uniformly distributed without aggregation.

4.2 Filtration and Storage

4.2.1 Filtration

4.2.1.1 Filter the nanoparticle solution using a 0.22-micron sterile filter to remove particulates.

4.2.2 Storage

4.2.2.1 Transfer the filtered nanoparticle solution into sterile containers and store under the

conditions specified by the formulation.

4.3 Documentation

All steps involved in nanoparticle preparation, including weights, mixing times, and filtration, must be recorded in the Nanoparticle Preparation Logbook and verified by QA.

5) Abbreviations

BMR: Batch Manufacturing Record
WFI: Water for Injection

6) Documents

Nanoparticle Preparation Logbook

7) References

Research articles on nanoparticle formulations and lyophilization techniques

8) SOP Version

Version 1.0

Annexure

Nanoparticle Preparation Logbook Template


  
    Date
    Nanoparticle Name
    Batch No.
    Quantity
    Mixing Time
    Operator Initials
    QA Verification
  
  
    DD/MM/YYYY
    Nanoparticle Name
    Batch Number
    Quantity (grams)
    Mixing Time (minutes)
    Operator Name
    QA Initials

Date	Nanoparticle Name	Batch No.	Quantity	Mixing Time	Operator Initials	QA Verification
DD/MM/YYYY	Nanoparticle Name	Batch Number	Quantity (grams)	Mixing Time (minutes)	Operator Name	QA Initials