GLP Nonclinical Safety & Toxicological Research

ODM Toxicity Studies Manufacturer & Global Safety CRO

End-to-End Nonclinical Toxicology, In Vitro Cytotoxicity, and In Vivo Safety Profiling Engineered for Phytochemicals, Botanical Drugs, Novel Nutraceuticals, and Active Pharmaceutical Ingredients.

Featured Research Portfolio 01

Featured Contract Research & Safety Programs

Integrated preclinical discovery, screening, potency analytics, and full-spectrum safety studies validated under stringent GLP documentation.

China Screening of the active ingredient(s) of plants Manufacturer, Manufacturers

China Screening of the active ingredient(s) of plants Manufacturer, Manufacturers

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OEM In Vitro Test /Research Service Manufacturers, Suppliers

OEM In Vitro Test /Research Service Manufacturers, Suppliers

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ODM Clinic study (Phase1 - Phase 4) Manufacturer, Suppliers

ODM Clinic study (Phase1 - Phase 4) Manufacturer, Suppliers

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OEM Animal study Supplier, Suppliers

OEM Animal study Supplier, Suppliers

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ODM Study and evaluation of the potency of the botanical active ingredients from different seasons and different origins. Manufacturer, Suppliers

ODM Study and evaluation of the potency of the botanical active ingredients from different seasons and different origins. Manufacturer, Suppliers

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China Establishment of analysis methods of active ingredient(s) Supplier, Suppliers

China Establishment of analysis methods of active ingredient(s) Supplier, Suppliers

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Active ingredients screening manufacturer supplier

Target Phytochemical Screening & High-Throughput Bioactivity Profiling

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Evaluation for natural materials manufacturer suppliers

Raw Material Multi-Origin & Seasonal Quality Matrix Evaluation

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14+
Years Nonclinical & TCM R&D
300+
In-House Scientists & Pathologists
100+
Global Pharma & Hospital Clients
100%
Data Defensibility (FDA, NMPA, OECD)
Executive Whitepaper & Scientific Paradigm

Translational Toxicology: De-Risking Complex Botanical Entities & NCEs

As global health authorities elevate thresholds for safety margins and reproducible characterization, traditional contract toxicology is being transformed by multimodal testing matrices.

The Phytochemical Safety Dilemma

Unlike single-molecule small synthetics, botanical extracts and polyherbal formulations contain hundreds of secondary metabolites, volatile terpenes, and complex macromolecules. This intricate chemical landscape presents unique nonclinical toxicity challenges: xenobiotic synergy, organ-specific accumulation, potential CYP450 enzyme inhibition, and batch-to-batch variation.

Our ODM toxicity services bridge raw botanical screening with validated toxicology packages, turning empirical herbal knowledge into scientifically quantifiable, regulator-ready dossiers.

E-E-A-T Verified Authority

MedGence (Yineng Pharma) operates at the convergence of classic medical knowledge and modern toxicological verification. Having completed modern medical safety profiles for 83 classic Traditional Chinese Medicine (TCM) formulas, developed 22 innovative natural medicines, and registered 56 hospital formulations, our multidisciplinary team ensures every assay conforms to international testing guidelines.

Our research protocols adhere rigorously to OECD Good Laboratory Practice (GLP), ICH S-series safety guidelines, and national regulatory pharmacopeias.

Information Gain & Study Customization

Generic contract manufacturers provide standard pass/fail readouts. As an advanced ODM Toxicity Studies Manufacturer, we deliver deeper contextual insights: Target Organ Toxicity Identification (TOTI), Maximum Tolerated Dose (MTD), No Observed Adverse Effect Level (NOAEL), and Toxicokinetic (TK) exposure modeling.

This mechanistic understanding provides clients with robust safety margins that prevent attrition during clinical phases and regulatory submission reviews.

Full-Scope Nonclinical Capabilities

Comprehensive ODM Toxicological Testing Matrix

From rapid early-stage cytotoxicity screens to pivotal GLP-compliant chronic safety and carcinogenicity packages, our facility covers the entire preclinical toxicity continuum.

Acute Systemic Toxicity

Establish baseline safety parameters, target-organ susceptibility, and acute mortality thresholds under OECD 420, 423, and 425 guidelines.

  • Median Lethal Dose (LD50) determination
  • Maximum Tolerated Dose (MTD) in rodents & non-rodents
  • Dose-Range Finding (DRF) for therapeutic window mapping
  • Gross pathological necropsy and acute symptom scoring

Repeated-Dose Sub-Acute & Sub-Chronic

Longitudinal evaluation of cumulative physiological impacts across 14-day, 28-day, and 90-day exposure windows under OECD 407 and 408 standards.

  • Comprehensive clinical chemistry and hematology
  • Detailed histopathological examination of 40+ tissues
  • Reversibility evaluation via designated recovery groups
  • Determination of No Observed Adverse Effect Level (NOAEL)

Genetic Toxicology Battery

Compliant with ICH S2(R1) regulatory guidelines to detect point mutations, chromosomal damage, and systemic mutagenic liability.

  • Bacterial Reverse Mutation Test (Ames Test, OECD 471)
  • In Vitro Mammalian Chromosomal Aberration (OECD 473)
  • In Vivo Rodent Erythrocyte Micronucleus Assay (OECD 474)
  • In Vitro Mouse Lymphoma Thymidine Kinase Assay (OECD 490)

Safety Pharmacology (ICH S7A/S7B)

Systemic functional safety suites assessing vital physiological systems prior to first-in-human clinical trials.

  • Cardiovascular safety: In vitro hERG potassium channel assay
  • In vivo blood pressure, heart rate, and telemetry ECG analysis
  • Central Nervous System (CNS): Functional Observational Battery (FOB)
  • Respiratory function profiling via whole-body plethysmography

Reproductive & Developmental Toxicity (DART)

Investigate compound effects on male and female fertility, embryofetal morphogenesis, and postnatal developmental milestones under ICH S5(R3).

  • Fertility and early embryonic development to implantation
  • Embryo-fetal development (teratogenicity) screening
  • Pre- and post-natal development including maternal function
  • Placental transfer and lactational excretion assessments

Toxicokinetics (TK) & Bioanalysis

Interfacing bioanalytical chemistry with exposure modeling to evaluate systemic compound circulation, metabolite emergence, and organ clearance.

  • High-resolution LC-MS/MS and HPLC-DAD bioanalytical validation
  • Serum AUC, Cmax, Tmax, and elimination half-life calculation
  • Accumulation and metabolic clearance kinetics
  • ICH S3A compliant exposure-to-toxicity correlation
Global Landscape & Regulatory Modernization

Navigating International Regulatory Evolution

As regulatory authorities harmonize evidentiary standards while advancing ethical alternatives, manufacturers must implement forward-compatible preclinical testing strategies.

The FDA Modernization Act 2.0 & Alternative Methods

The signing of the FDA Modernization Act 2.0 represents a landmark regulatory evolution, authorizing the use of qualified alternatives to animal testing, including cell-based microphysiological systems, organoids, and computational (in silico) modeling to support Investigational New Drug (IND) applications.

Our ODM facility embraces this transition through a hybrid tiered model: we deploy 2D/3D human cell cultures, organ-on-a-chip platforms, and in vitro cytotoxicity screens as rapid early filters to eliminate high-risk structures, reserving targeted in vivo models for confirmatory systemic endpoints.

OECD Mutual Acceptance of Data (MAD)

For international market authorizations spanning the United States (FDA), European Union (EMA), United Kingdom (MHRA), Japan (PMDA), and China (NMPA), data integrity and study transparency are critical. Under the OECD MAD framework, safety data generated in compliance with OECD GLP principles is accepted across all member and adhering nations.

MedGence guarantees standard operating procedures (SOPs), QA audit oversight, temperature-controlled sample traceability, and comprehensive archival systems designed to withstand international multi-jurisdiction regulatory audits.

Phytochemical Complexity & Impurity Profiling

Regulatory authorities increasingly reject nonclinical dossiers for botanical active ingredients if the test substance is insufficiently fingerprinted. A toxicity profile is scientifically meaningless if the exact chemical composition of the tested batch cannot be mapped to the commercial formulation.

We solve this by coupling high-resolution chromatographic fingerprinting (HPTLC, HPLC-Q-TOF-MS), heavy metal residue quantification, and mycotoxin/pesticide screening directly with every toxicology batch, guaranteeing total compositional identity.

Supply Chain Resilience & Efficiency

China Manufacturing Agility & Infrastructure Advantages

How our integrated CRO/CDMO campus delivers superior turnaround times, cost efficiency, and end-to-end quality control for international sponsors.

Vertical Integration from Herb to Assay

Western toxicology labs typically operate in isolation from botanical raw material supply chains, creating delays and chemical discrepancies. Based in Changsha, Hunan, MedGence leverages deep domestic access to raw botanical harvesting hubs, verified Good Agricultural and Collection Practices (GACP) farms, and dedicated extraction pilot plants.

Our extraction, purification, method development, and toxicology facilities exist under unified technical leadership, eliminating inter-vendor handoffs.

35% to 50% Cost & Timeline Efficiency

Global pharmaceutical and nutraceutical innovators face escalating R&D costs and multi-month queue times at major Western contract research labs. MedGence breaks this bottleneck by providing rapid study slot initiation within 2 to 4 weeks of protocol sign-off.

Our established nonclinical capacity and operational cost framework deliver 35% to 50% overall expenditure savings without compromising statistical rigor, GLP adherence, or analytical sensitivity.

Expertise Across 400+ Botanical Standards

Having authored monographs, extraction SOPs, and analytical quality standards for nearly 400 single-herb medicines and polyherbal preparations, our scientific bench is trained to anticipate matrix interference issues during in vitro and in vivo dosing.

This specialized domain expertise minimizes repeat assays, avoids dosage formulation precipitation, and accelerates regulatory submission pathways.

Sector Implementations

Localized Application Scenarios Across Global Markets

Tailored toxicology programs mapped to the distinct regulatory pathways of target markets and end-use product categories.

Botanical Drug IND Packages

Structured nonclinical packages designed to satisfy FDA 505(b)(2), EMA Herbal Medicinal Product (HMPC), or NMPA Class 1/Class 2 traditional Chinese medicine regulatory filings.

  • Dose-escalation safety ranges
  • Systemic TK exposure profiles
  • Multi-species 28/90-day GLP reports

NDI & GRAS Food Dossiers

Toxicological substantiation for New Dietary Ingredients (NDI), GRAS notices in the USA, and Novel Food approvals under EFSA regulations.

  • 90-day subchronic oral toxicity (OECD 408)
  • In vitro bacterial reverse mutation
  • In vivo mammalian erythrocyte micronucleus

Cosmetic Safety Assessments

Cruelty-free, animal-free in vitro toxicology services aligned with the EU Cosmetic Regulation (EC No 1223/2009) and China CSAR safety dossiers.

  • In vitro skin irritation (RhE, OECD 439)
  • Ocular irritation (BCOP, OECD 437)
  • In vitro 3T3 NRU phototoxicity (OECD 432)

Hospital Formula Conversions

Translating clinical hospital preparations into commercial registered drug products with modern nonclinical safety profiles.

  • 56 Hospital registrations modernized
  • Bridging study toxicology designs
  • Formulation excipient safety profiling
Future-Forward Science

Technology Roadmap & Next-Gen Predictive Toxicology

Pioneering the integration of artificial intelligence, high-content screening, and microphysiological biochips to elevate safety prediction accuracy.

Phase I: Current Benchmark

GLP In Vivo & Multi-Omic Profiling

Standardized OECD/ICH animal models integrated with automated clinical pathology, targeted toxicogenomics, and LC-MS/MS bioanalysis to monitor metabolic cascades and tissue changes.

Phase II: High-Throughput

High-Content Screening (HCS)

Automated fluorescence microscopy to simultaneously assess mitochondrial membrane potential, reactive oxygen species (ROS) induction, and apoptosis across diverse cell lines.

Phase III: Advanced NAMs

Organ-on-a-Chip & 3D Tissue Systems

Microfluidic Liver-on-a-Chip and Gut-Kidney vascularized axes that mimic physiological mechanical shear stresses, providing accurate human-relevant organ toxicity data.

Phase IV: Next Horizon

AI In Silico QSAR Hazard Modeling

Machine-learning models trained on proprietary phytochemical datasets to predict off-target bioactivity, mutagenicity, and cardiotoxicity before wet-lab synthesis or extraction.

Compliance Architecture

Localization Support, Auditing & Regulatory Assurance

How our quality assurance framework shields sponsors from regulatory discrepancies, inspection non-conformities, and intellectual property hazards.

21 CFR Part 11 & GLP Quality Assurance

Our quality management division operates independently of laboratory study directors, reporting directly to the executive board. Every study phase undergoes three-tier protocol auditing: protocol review, in-life phase inspection, and final raw data/report cross-verification.

Laboratory data capture systems comply with US FDA 21 CFR Part 11 electronic records, complete with automated audit trails, user privilege stratification, and immutable cloud-synced backups.

SEND Format Datasets for FDA Filings

Since 2016, the FDA requires nonclinical study data for IND, NDA, and BLA submissions to be formatted in the Standard for Exchange of Nonclinical Data (SEND). Non-SEND files encounter immediate refusal-to-file (RTF) risks.

Our computational bio-statistics unit maps all in-life observations, laboratory findings, and histopathological terminology into CDISC-compliant SEND datasets, ensuring effortless eCTD module 4 submissions.

Strict Non-Disclosure & IP Protection

As an ODM/CDMO partner, our business model relies entirely on contract research; we do not commercialize competing retail brands. All formulas, purification methods, extraction parameters, and study data remain 100% client-owned intellectual property.

Sponsors receive secure project firewalls, dedicated cleanroom pilot manufacturing suites, and non-disclosure governance backed by international legal jurisdiction.

Technical FAQ

Frequently Asked Technical & Procurement Questions

Clear answers for toxicologists, regulatory directors, and procurement leaders evaluating nonclinical study programs.

What distinguishes MedGence from traditional contract toxicology facilities?
MedGence integrates active botanical ingredient discovery, seasonal potency screening, and pilot manufacturing directly with comprehensive toxicology services. While conventional CROs treat plant extracts like synthetic chemicals—often failing due to solubility, matrix interference, or chemical variation—we characterize, fingerprint, and stabilize the botanical test substance prior to dosing, ensuring reproducible safety evaluations.
Are your toxicity study reports directly submissible to the US FDA and European EMA?
Yes. Our toxicology facilities operate under OECD GLP mutual recognition and NMPA GLP accreditation. Studies intended for FDA IND submissions are conducted according to FDA GLP (21 CFR Part 58), utilize validated electronic systems (21 CFR Part 11), and can include fully formatted CDISC SEND datasets ready for eCTD Module 4 compilation.
How do you handle solubility and formulation challenges in complex herbal extracts?
Our formulation team collaborates with bioanalytical chemists during the pre-dose analytical phase. We develop customized vehicles (such as cosolvent systems, micellar suspensions, or microemulsions) that maintain active compound solubility without triggering vehicle-related toxicity, and we validate suspension homogeneity and stability over the entire dosing period according to ICH M3(R2).
What is the typical turnaround timeline for a standard 28-day subacute GLP oral toxicity study?
A standard 28-day repeated-dose study in rodents typically takes 12 to 16 weeks from protocol approval to final audited report. This timeline encompasses dose-range finding (DRF, 2-3 weeks), animal acclimatization (1 week), 28-day in-life dosing phase, recovery period observation (2 weeks), necropsy, histopathology, bioanalytical sample analysis, and QA report auditing.
Can you execute cruelty-free, animal-free in vitro testing for cosmetic ingredients?
Yes. We operate a comprehensive non-animal alternative testing laboratory supporting OECD guidelines for cosmetic safety: reconstructed human epidermis (RhE) for skin irritation (OECD 439), skin corrosion testing (OECD 431), 3T3 NRU phototoxicity (OECD 432), and bovine corneal opacity/permeability (BCOP, OECD 437) for ocular irritation.
How do you verify the stability and purity of the test article throughout long-term studies?
Prior to initiating in-life dosing, our analytical division validates HPLC/UHPLC and LC-MS assay methods for the test article. We measure compound concentration, homogeneity, and stability in the dosing vehicle at Day 0, Day 14, and Study Conclusion, ensuring documented proof that the administered compound remained active, pure, and free of degradation throughout the study.
Featured Research Portfolio 02

Featured Service Modules & Contract Research Lines

Seamlessly extend your nonclinical pipeline from safety characterization to clinical trial validation and scalable finished dosage production.

China Screening of the active ingredient(s) of plants Manufacturer, Manufacturers

China Screening of the active ingredient(s) of plants Manufacturer, Manufacturers

Request Quote
OEM In Vitro Test /Research Service Manufacturers, Suppliers

OEM In Vitro Test /Research Service Manufacturers, Suppliers

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ODM Clinic study (Phase1 - Phase 4) Manufacturer, Suppliers

ODM Clinic study (Phase1 - Phase 4) Manufacturer, Suppliers

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OEM Animal study Supplier, Suppliers

OEM Animal study Supplier, Suppliers

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ODM Study and evaluation of the potency of the botanical active ingredients from different seasons and different origins. Manufacturer, Suppliers

ODM Study and evaluation of the potency of the botanical active ingredients from different seasons and different origins. Manufacturer, Suppliers

Request Quote
China Establishment of analysis methods of active ingredient(s) Supplier, Suppliers

China Establishment of analysis methods of active ingredient(s) Supplier, Suppliers

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Analysis method establishing supplier suppliers

HPLC, GC & Fingerprint Method Establishment Services

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Clinic study manufacturers supplier

Phase I–IV Clinical Trial Design & Human Safety Studies

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Initiate Your Study Design

Request a Custom Protocol & Nonclinical Consultation

Consult directly with our toxicologists and regulatory directors to scope your toxicology package, confirm turnaround timelines, and receive itemized budgetary plans.

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