GMP AAV Batch Release Testing

Secure Your Path to the Clinic with Validated, IND-Ready Analytics

AAV
  • Accelerate your gene therapy program with PackGene’s comprehensive GMP AAV Release Testing services. Designed to meet ICH Q2(R1) standards and FDA/EMA guidelines, our end-to-end quality control (QC) workflow ensures the identity, potency, purity, and safety of your drug product.

    By co-locating GMP manufacturing with our integrated QC laboratories, we eliminate the delays and risks associated with external testing, providing a streamlined "Make-and-Test" workflow that delivers a fully audited Certificate of Analysis (CoA) for every lot.

Key Benefits for Clinical Manufacturing

  • Accelerated Lot Release

    Our integrated "Make-and-Test" model allows for real-time analytics alongside manufacturing, significantly reducing release timelines compared to outsourced models.
  • Regulatory Readiness

    All assays are qualified or validated per ICH Q2(R1), supporting IND and BLA submissions with robust, defendable data packages.
  • Comprehensive CQA Coverage

    We address every Critical Quality Attribute (CQA) required for human administration—from mandatory compendial safety tests to advanced capsid analytics.
  • Expert Guidance

    Leverage technical expertise that supports over 35 clinical programs worldwide, ensuring your testing strategy aligns with the latest regulatory expectations.

Comprehensive GMP Release Panel

We offer a rigorous panel of 60+ qualified and validated assays covering every Critical Quality Attribute (CQA) required for human administration.

Table 1: Standard GMP Release Assay List

A selection of our qualified methods available for IND/BLA submission.

Test Category Critical Quality Attribute (CQA) Method Standard/Guideline
Safety Sterility Direct Inoculation USP <71>
Endotoxin Kinetic Chromogenic / LAL USP <85>
Mycoplasma Detection qPCR USP <63>
Replication Competent AAV (rcAAV) Cell-based Assay + qPCR FDA Recommended
Subvisible Particles Light Obscuration USP <788>
Potency Genomic Titer (Physical) ddPCR (Digital Droplet PCR) Validated
Infectious Titer (Biological) TCID50 Cell-Based Assay Validated
Total Particle Titer Capsid ELISA / HPLC Validated
Purity Empty / Full Capsid Ratio Analytical Ultracentrifugation (AUC) Gold Standard
Aggregation (HMW) SEC-HPLC Validated
Capsid Protein Purity SDS-PAGE / CE-SDS Validated
Identity Genomic Integrity Nanopore Sequencing / CE Validated
Capsid Identity Peptide Mapping / Western Blot Validated

Performance Case Study: High-Purity AAV

Our manufacturing and testing platforms consistently deliver drug substance (DS) and drug product (DP) that exceed industry standards. The data below represents typical release results from our GMP production lines. 

Table 2: Typical GMP Batch Release Data

Data derived from recent clinical AAV manufacturing campaigns

Critical Quality Attribute Actual GMP Data (PG_C001Batch A) Actual GMP Data (PG_C001 Batch B)
Appearance Conforms Conforms
pH 7.3 7.3
AAV Purity (HPLC) 99.10% 98.54%
Aggregation (SEC-HPLC) 0.90% 1.45%
Empty/Full Ratio (AUC) 97.36% Full 94.70% Full
Genomic Titer (ddPCR) 1.63 × 10¹³ vg/mL 1.19 × 10¹³ vg/mL
Residual Host DNA 3.62 ng 3.07 ng
Residual Host Protein 1.81 ng 1.77 ng
Replication Competent AAV < 1 rcAAV < 1 rcAAV
Endotoxin < 0.4 EU/mL < 0.4 EU/mL

Visualizing Product Quality

  • Figure 1: Empty/Full Capsid Ratio by AUC The Regulatory "Gold Standard" for Purity.

    Learn more about AAV Empty/Full Capsid Ratio Test by AUC.

    Empty-Full Capsid Ratio by AU

    Analytical Ultracentrifugation (AUC) provides high-resolution separation of capsid species. As shown in these consecutive GMP batches, our process achieves industry-leading purity with 97.36% and 94.70% full capsids. The sharp peaks confirm effective removal of empty particles and high homogeneity.

  • Figure 2: Aggregation Analysis by SEC-HPLC Confirming Safety and Monodispersity.

  • Figure 3: Capsid Identity & Purity by SDS-PAGE Visual Verification of Viral Proteins.

  • Figure 4: Genomic Titer by ddPCR Absolute Quantification for precise dosing.

Visualizing Product Quality

Ensuring your product remains stable and safe throughout its shelf life is critical for clinical success.

Table 3: Residual Impurity Clearance

Validated assays ensure process residuals are removed to safe levels for human administration.

Impurity Type Target Residual Method Real-World Result (PG_C001)
Host Cell HEK293 DNA qPCR Passed (< 4 ng)
HEK293 HCP ELISA Passed (< 2 ng)
Process Additives Benzonase (Nuclease) ELISA Not Detected
Poloxamer 188 HPLC 8.63 mg/L
Transfection Reagent HPLC Not Detected
Affinity Ligand ELISA 0.20 ng

 

ready to release your batch

Contact our Technical Team to discuss your specific CQA requirements and transfer your assays today.

Resource

Documents FAQ

Q: Are there any requirements for the number of samples sent in batches?

Q: What does PackGene consider acceptable error or deviation ranges for standard QC analysis methods?

Q: HIV, HBV, HCV testing, pyrogen-free tests, and wild virus tests are not in the standard quality control services list. Do these tests need to be applied?

Q: Is verification of cell banks in accordance with the Chinese Pharmacopoeia 2015 Three General Principles “The Preparation and Verification Regulations of Animal Cell Matrix for the Verification of Biological Products”?

Q: What is the expected empty shell rate PackGene AAV Fast Services?

Q: What method is used to determine the empty shell rate for AAV samples?

Q: Do specific primers need to be designed to determine GC/ml for a custom AAVs?

Q: How are GC/ml and vg/ml related to one another, and how does PackGene determine GC/ml for AAV products?

Expand More

REQUEST A QUOTE

Confidentiality Commitment from PackGene:

The information you submit here will be kept strictly confidential. Packgene will not disclose to any third party or related personnel, and it will only be used for project evaluation and progress reports according to the requests from submitter under confidentiality conditions.

Download

Login

Don't have an account? Please register
Account*
Password*
Code*
Refresh
Forgot password?
Logging in indicates that you have read and accepted the Registration Agreement and User Agreement
Log in with other accounts

New User Registration

Already have an account?
First Name*
Middle Name
Last Name*
Organization*
Organization Type*
Country/State*
Email Address*
Set Password*
Confirm password*
Refferal Code*

Reset Password

Return to
Email*
Code*
New password*
Confirm password*

Google Account Binding

Organization*
Organization Type*
Country/State*