Dissolution Profile Similarity Assessment-Best Practices, Decision Trees and Global Harmonization

Area of Science:

• Pharmaceutical Sciences
• Regulatory Science

Background:

• Current challenges in dissolution profile studies create ambiguity in regulatory assessments.
• Previous reports highlighted issues in comparing dissolution profiles for biowaivers and postapproval changes.

Purpose of the Study:

• To develop a "best-practice" document for assessing dissolution profiles.
• To provide clear steps for evaluating dissolution data in regulatory submissions.
• To address ambiguity in dissolution profile comparison for regulatory decision-making.

Main Methods:

• Development of two decision trees outlining steps for dissolution profile assessment.
• Inclusion of recommendations for equivalence procedures between reference and test products.
• Description of common approaches for establishing the dissolution safe space concept.

Main Results:

• The presented decision trees offer a structured approach to dissolution profile analysis.
• The document integrates equivalence testing and the dissolution safe space concept.
• Guidelines are provided for preparing clear testing protocols with defined pass/fail criteria.

Conclusions:

• The proposed framework offers a solution to current ambiguities in dissolution profile comparison.
• Implementation of these principles can lead to global regulatory alignment.
• This work supports consistent quality assessment for manufacturing changes and biowaiver requests.