In-vitro Bioequivalence
In-Vitro Bioequivalence / Q3 Characterization Studies
To prove in vitro bioequivalence for complex generics, one must understand the construction of a product’s physicochemical architecture, microphysical integrity, and performance under controlled conditions. Every dosage form presents its own scientific challenges. Semisolids require mapping of rheology, microstructure, and emulsification behavior at the highest resolution. Transdermals depend on adhesive mechanics, diffusion kinetics, and residual drug measurement.
Ophthalmics and otics require extreme precision in droplet size, osmolality, and sterility assurance. Injectables require control of particulate and evaluation of release kinetics and container-closure integrity. Nasals require reproducible aerosolization behavior and plume geometry. Inserts, implants, and oral liquids require evaluation of disintegration kinetics, matrix degradation, long-term release behavior, and redispersibility performance. Failure to comply with these parameters can lead to a non-compliance risk, reformulation, or the need to repeat a study at an added cost.
Advanced In-Vitro Bioequivalence and Q3 Characterization
At Healios Labs, we tackle the in vitro bioequivalence and Q3 characterization challenges with an integrated, materials science-driven approach that de-risks these issues. Using advanced analytical characterization, mechanistic modeling, and formulation reverse-engineering,
we define the relationships between composition, process parameters, and critical quality attributes. Our QbD-driven workflows and statistically robust DoE framework ensure that every study is designed to enable quantification of variables, map risk elements, and generate defensible, regulatory-ready data.
Healios combines microstructural analysis, elucidation of release mechanisms, diffusion/permeation modeling, and device performance assessment to provide a single-platform demonstration of formulation sameness and performance equivalence across a wide range of drug products.
Cross-Functional Expertise for Comprehensive Product Characterization
Our teams draw on together cross-functional scientific expertise to ensure that, whether the program requires rheological fingerprinting, particulate characterization, microstructural mapping, permeation studies, aerosolization evaluation or long-term release kinetics, we deliver with high confidence and faster development timelines. The resulting dataset is suitable for regulatory submission, phase-appropriate, scalable, robust, and commercially viable.
In-Vitro Bioequivalence Testing for Topicals, Transdermals, Injectables & Oral Formulations
Topicals (Creams, Gels, Ointments, Lotions, Foams) – In-Vitro Bioequivalence, IVRT & IVPT Testing Services.
- Q3 Microstructure Analysis
- Rheology Profiling (Viscosity, Oscillatory Testing, Yield Stress)
- Particle / Globule Size Distribution
- Microscopy (Optical, Polarized Light, SEM)
- IVRT (In-Vitro Release Testing)
- IVPT (In-Vitro Permeation Testing)
- pH, Osmolality, Density / Specific Gravity
- Texture Analysis (Spreadability, Firmness, Adhesiveness)
- Emulsion Stability Studies (Centrifugation, Temperature Cycling)
- Thermal Analysis (DSC, TGA)
- Preservative Efficacy Testing
Nasal Sprays & Nasal Suspensions – In-Vitro Bioequivalence, Spray Characterization & Dose Uniformity Testing
- Spray pattern & plume geometry
- Droplet / particle size distribution
- Delivered dose uniformity
- Shot weight & spray content uniformity
- Priming and re-priming performance
- pH, viscosity, osmolality
- Suspension redispersibility
- In-vitro release for nasal gels
Transdermals (Patches & Dermal Systems) – In-Vitro Bioequivalence, IVPT & Adhesion Performance Testing
- Adhesion performance tests (peel, tack, shear)
- In-vitro permeation testing (IVPT)
- Drug release testing
- Layer thickness and weight uniformity
- Residual drug content in patch
- Moisture content & water activity
- Drug content uniformity
Implants (Biodegradable & Non-Biodegradable) – In-Vitro Bioequivalence, Release Kinetics & Degradation
- In-vitro release kinetics (short-term and long-term)
- Degradation profile (mass loss, molecular weight reduction)
- Mechanical strength testing
- Swelling / erosion studies
- Drug content uniformity
- Stability & extractables / leachables
Ophthalmics & Otics (Solutions, Suspensions, Emulsions, Ointments)
- Osmolality, pH, viscosity
- Particle / droplet size distribution
- Microstructure & rheology (for semisolids)
- Surface tension
- In-vitro drug release (for gels / ointments)
- Sterility testing
- Preservative efficacy testing
Oral Liquids (Solutions, Suspensions, Syrups) – In-Vitro Bioequivalence, Dissolution & Stability Testing
- Viscosity profiling
- Particle size distribution (for suspensions)
- Redispersibility testing
- pH, density, osmolality
- In-vitro dissolution (when applicable)
- Stability-indicating assays
Injectables (Solutions, Suspensions, Emulsions) – In-Vitro Bioequivalence & Sterility, Particulate Analysis Testing
- Subvisible particulate matter (light obscuration & microscopy)
- Globule size (for emulsions)
- Osmolality, pH, viscosity
- Syringeability & injectability
- In-vitro release (for long-acting injectables)
- Rheological behavior of suspensions
- Container–closure integrity
- Sterility & endotoxin testing
Inserts (Ocular, Vaginal, Rectal Inserts) – In-Vitro Bioequivalence, Drug Release & Disintegration Testing
- Disintegration time
- In-vitro drug release/dissolution
- Water uptake & swelling behavior
- Tensile strength / physical integrity
- Content uniformity
- Moisture content
