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Related Experiment Video

Updated: Feb 17, 2026

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Scientific, statistical, practical, and regulatory considerations in design space development.

Veronika Debevec1, Stanko Srčič2, Matej Horvat3

  • 1a Sandoz Development Center , Lek Pharmaceuticals, d.d. , Ljubljana , Slovenia.

Drug Development and Industrial Pharmacy
|December 5, 2017
PubMed
Summary

This review details developing a pharmaceutical design space using quality by design (QbD). It emphasizes scientific, statistical, and regulatory factors for manufacturing flexibility and risk management.

Keywords:
Design of Experiments (DoE)Quality by Design (QbD)design spaceempirical modelinghybrid modelingmechanistic modelingscale-independent parameters

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Area of Science:

  • Pharmaceutical Science
  • Chemical Engineering
  • Regulatory Science

Background:

  • Quality by Design (QbD) enhances product and process understanding in pharmaceuticals.
  • QbD facilitates manufacturing and regulatory flexibility through design space establishment.

Purpose of the Study:

  • To present scientific, statistical, and regulatory considerations for design space development.
  • To discuss key development milestones from planning to submission.

Main Methods:

  • Review of scientific, statistical, and regulatory aspects of design space development.
  • Discussion of critical factors including experimental design, data analysis, and risk assessment.
  • Exploration of often-overlooked topics like factor management and scale-up modeling.

Main Results:

  • Comprehensive overview of design space development milestones.
  • Highlighting of critical considerations for robust design space definition.
  • Proposal of a manufacturing scale-independent design space as the preferred approach.

Conclusions:

  • Effective design space development is crucial for pharmaceutical innovation and flexibility.
  • Addressing often-ignored aspects enhances the robustness and reliability of the design space.
  • A scale-independent design space simplifies regulatory submissions and manufacturing operations.