Pharmaceutical release testing refers to the set of analytical, physical, and microbiological tests performed on a drug product to determine whether it is suitable for release to the market or for clinical use. In the pharmaceuticals field, each batch must meet predefined specifications for identity, strength, purity, and quality before approval. It is a cornerstone of modern drug development and manufacturing, ensuring that every batch of a drug product meets strict quality, safety, and regulatory standards before reaching patients. Therefore, robust release testing is essential to maintain product integrity and regulatory compliance. As a leading pharmaceutical development company, we provide comprehensive pharmaceutical release testing services designed to support both clinical and commercial programs. Our integrated approach combines regulatory expertise, advanced analytical technologies, and flexible testing strategies to deliver reliable, submission-ready data.
Our Release Testing Solutions
We offer flexible, science-driven pharmaceutical release testing solutions that combine compendial compliance with customized analytical development. Our integrated approach ensures reliable, regulatory-ready results for both established and novel drug products.
Compendial Release Testing
Our compendial release testing service applies official pharmacopoeial methods to confirm critical quality attributes such as identity, potency (assay), purity, impurities, and content uniformity for both APIs and finished drug products.
Methodology
We perform monograph-based testing in accordance with major pharmacopoeias (USP, EP, JP), using qualified platforms such as NMR, HPLC, and LC-MS/MS. Method suitability is verified per guidelines (e.g., USP<1226>) to confirm accuracy and reliability under our laboratory conditions.
Deliverables
- Analytical reports demonstrating compliance with specifications
- Comparison to pharmacopeial standards or reference materials
- Certificate of Analysis (CoA) for release or submission
- Method suitability verification documentation
Custom Validated Release Testing
For products without compendial methods, we develop and validate custom release assays tailored to APIs, biologics, peptides, and complex formulations, ensuring regulatory-grade analytical solutions.
Methodology
We design methods using appropriate technologies (e.g., NMR, HPLC, LC-MS/MS) based on product characteristics, followed by validation in line with ICH Q2(R2) and cGMP/GLP standards. Key parameters include specificity, accuracy, precision, and sensitivity.
Deliverables
- Full method validation reports
- Analytical reports for release batches
- Certificate of Analysis (CoA)
- Regulatory support documentation (method summaries and validation data)
Target Product / Molecule Type
Our release testing services are designed to accommodate a wide range of pharmaceutical and biopharmaceutical products, including:
- Small molecule drugs (API and drug product)
- Biologics (e.g., monoclonal antibodies, recombinant proteins)
- Peptides and oligonucleotides
- Drug-device combination products
- Novel and complex formulations
- ...
Our Release Testing Capabilities
Building on our comprehensive analytical platform, we provide an extensive range of release testing capabilities covering all critical quality attributes required for batch release.
| Purpose | Tests |
| Physical Properties | - Appearance (color, clarity, and physical form)
- pH measurement
- Water content (Loss on Drying or Karl Fischer)
- Hardness (for solid dosage forms)
- Melting point determination
- Density and specific gravity
- Viscosity (for liquid and semi-solid formulations)
|
| Identity Testing | - Identification by Infrared spectroscopy (IR)
- Identification by ultraviolet spectroscopy (UV)
- Packaging-based identification checks
- Molecular weight determination by size exclusion chromatography (SEC)
- Chiral analysis for enantiomer identification
|
| Potency Assessment | - Assay by HPLC, UPLC, or ion chromatography (IC)
- Assay by UV spectroscopy
- Assay by titration methods
- Preservative content analysis
- Determination of dimers and related species
|
| Purity & Contaminant Analysis | - Impurities by HPLC
- Degradation product analysis (stability-indicating methods)
- Particulate analysis (visible and subvisible, including Malvern and sieve methods)
- Residual solvents by gas chromatography (GC)
- Trace metals analysis by ICP-MS / ICP-OES
- Identification of unknown impurities by LC-MS and GC-MS
|
| Elution & Performance Testing | - Dissolution testing (USP Apparatus 1, 2, 5, and 7)
- Solution solubility evaluation
- Stability studies
|
| Microbiological Testing | - Sterility testing
- Bacterial endotoxin testing
- Microbial limits testing
- Microorganism identification
|
| Packaging Assessment | - Content uniformity
- Packaging identity verification
- Container closure integrity and packaging stability studies
|
| Advanced Characterization | - Peptide mapping, glycan profiling
- Protein characterization
- Bioassays and electrophoresis
|
Instrumentation & Analytical Platforms
Our laboratories are equipped with state-of-the-art analytical instrumentation to ensure accurate, reproducible, and high-quality data generation. Key platforms include:
- Chromatography Systems: HPLC, UPLC, LC-MS/MS
- Spectroscopy Tools: NMR, UV-Vis, HR-MS
- Mass Spectrometry: High-resolution and tandem MS systems
- Microbiological Systems: Sterility and endotoxin testing platforms
- Electrophoresis Techniques: Capillary electrophoresis and isoelectric focusing
- ...
Our Advantages
- Regulatory Expertise: We operate under cGMP and GLP standards, ensuring compliance with global regulatory agencies. Our testing strategies align with ICH guidelines and pharmacopeial requirements.
- Comprehensive Solutions: From compendial testing to custom assay development, we provide end-to-end release testing services tailored to your product and development stage.
- Advanced Analytical Capabilities: Our cutting-edge instrumentation and experienced scientists enable accurate, reliable, and reproducible results.
- Flexibility and Customization: We design testing strategies specific to each client's molecule, formulation, and regulatory pathway.
- Quality and Reliability: Our rigorous quality systems ensure data integrity, traceability, and confidence in every batch release decision.
Please kindly note that our services are for research use only.
