Method Development, Validation and Release Test

Analytical methods are essential for characterizing pharmaceutical materials, monitoring critical quality attributes, and evaluating product quality throughout drug development. Reliable analytical procedures support process development, impurity control, stability assessment, and quality control from early-stage research through routine manufacturing. Protheragen provides analytical method development, method validation, and release testing services to support pharmaceutical development and CMC programs. Our analytical capabilities cover APIs, intermediates, excipients, and other pharmaceutical materials, with testing strategies tailored to product characteristics, development stage, and quality requirements.

Overview of Method Development, Validation and Release Test

Analytical method development, validation, and release testing are important components of pharmaceutical quality assessment and CMC development. Method development establishes analytical procedures suitable for the intended purpose and capable of measuring relevant quality attributes. Depending on the product and analytical objective, methods may be developed for assay, purity, impurities, residual solvents, elemental impurities, chiral purity, and other critical quality attributes.

Method validation evaluates the performance characteristics of an analytical procedure to demonstrate that it is suitable for its intended application. Typical validation characteristics may include specificity, accuracy, precision, linearity, range, detection and quantitation limits, robustness, and solution stability.

Release testing involves the routine analysis of pharmaceutical materials or batches against predefined quality specifications. Depending on the material and applicable specifications, release testing may include assay, related substances, residual solvents, water content, elemental impurities, chiral purity, and relevant physicochemical properties. Together, these activities provide analytical support for product characterization, quality control, and batch quality assessment throughout the CMC lifecycle.

Fig.1 Analytical quality by design workflow, translating the ICH Q14 components into user-friendly, smaller, and ready-to-use steps. (van Tricht E, et al., 2025)

Our Services

Reliable analytical methods are essential for understanding product quality, controlling impurities, supporting process development, and ensuring consistent batch quality. Our analytical services cover method development, validation, and release testing for APIs, intermediates, excipients, and pharmaceutical materials, with analytical strategies tailored to the compound, development stage, and quality requirements.

Analytical Support Throughout CMC Development

The analytical capabilities can be integrated throughout the CMC development lifecycle, from early-stage API characterization and process development to method validation, stability studies, and routine release testing.

Analytical Approach

• Fit-for-Purpose Method Development

Analytical procedures are developed according to the intended use, product characteristics, and development stage rather than applying a one-size-fits-all approach.

• Comprehensive Impurity Assessment

Multiple analytical techniques can be combined to characterize and monitor process-related impurities, degradation products, residual solvents, elemental impurities, and other critical quality attributes.

• Orthogonal Analytical Techniques

Complementary analytical techniques can be applied when a single method is insufficient to provide a comprehensive understanding of product quality.

• Development-to-Release Continuity

Methods developed during early CMC development can be further optimized, validated, and applied to quality control and release testing, helping maintain analytical consistency throughout the product lifecycle.

Typical Applications

Our analytical method development, validation, and release testing services can support:

Why Choose Protheragen

• Integrated CMC Support

Analytical development is closely connected with process development, impurity control, preformulation, and other CMC activities, enabling analytical strategies to evolve with the development program.

• Broad Analytical Coverage

A range of chromatographic, mass spectrometric, elemental, and physicochemical techniques can be combined to address diverse analytical challenges.

• Development-Stage Flexibility

Analytical programs can be adapted to different development stages, from early research and feasibility studies to late-stage development and routine quality control.

• Quality-Focused Approach

Analytical procedures are developed and evaluated with emphasis on specificity, accuracy, precision, robustness, and reproducibility to support reliable quality assessment.

Protheragen provides integrated analytical support from method development and validation to stability and release testing. By combining fit-for-purpose analytical strategies with comprehensive testing capabilities, Protheragen helps clients establish reliable analytical methods, monitor critical quality attributes, and maintain consistent product quality throughout the CMC development lifecycle. Contact us to discuss your analytical method development, validation, and release testing requirements.