Quality Control of Oligonucleotides

Comprehensive CMC testing for synthetic oligonucleotides under GMP conditions

Oligonucleotide-based drugs are transforming modern medicine, offering targeted treatments for genetic and rare diseases, but their complex chemistry brings new analytical challenges and regulatory expectations.

At Kymos Group, we provide a comprehensive suite of quality control and CMC analytical services for synthetic oligonucleotides, supporting our clients from early development through GMP release testing.

These services build on the analytical methods developed during OligoXplorer, our in-house research initiative dedicated to advancing oligonucleotide characterization, and are now fully validated and available to industry partners.

Raw Material Testing Img 1

SERVICES

Our Analytical Capabilities

 

 

 

 

Quality Attribute Parameters Techniques
Strength Assay, lipid content in LNP Ion Pair-HPLC-UV-MS, HPLC-CAD
Identity Sequence, molecular weight, chemical structure, lipids, sodium Ion Pair-HPLC-UV-MS, AEX (SAX)-HPLC, NMR, HPLC-CAD, DLS, ICP-MS
Purity Aggregation, product-related impurities, residual solvents, acetate, water content, elemental impurities SEC-HPLC, Ion Pair-HPLC-UV, AEX (SAX)-HPLC, HS-GC, KF, Ionic HPLC, ICP-MS
Safety Bioburden (TAMC/TYMC), endotoxins, sterility Microbiology techniques
Compendial Appearance, osmolarity, particulate matter, pH, extractable volume Standard techniques

SERVICES

Our Complete Solution

Identity & Structure for oligos

Identity & Structure

  • LC-MS and HR-MS sequencing for molecular identity confirmation.
  • Detection of shortmers, longmers, and chemical variants.
  • Chromatographic isolation of sequence-related impurities before MS analysis.

Content & Potency

  • HPLC-UV and LC-MS assays for accurate quantitation of oligonucleotide content.
  • Optimized chromatographic separation of the main peak from impurities and degradation products.
  • Method validation under ICH guidelines for precision, linearity, and robustness.
Content & Potency for Oligos

Purity & Impurities

  • HPLC-UV and LC-MS impurity profiling for related substances and degradation pathways.
  • Detection of truncated, elongated, or chemically modified oligonucleotide species.
  • Batch-to-batch and stability studies to monitor product integrity.

Formulation & Complementary Tests

To provide a complete analytical picture, we also perform complementary studies in-house and through established partnerships:

  • Lipid quantification in LNPs by HPLC-CAD.
  • Residual solvent and buffer analysis, including sodium acetate content.
  • Elemental impurities testing by ICP-MS.
  • Particle size, aggregation state, and polydispersity by DLS.
  • Bioburden, endotoxins, and sterility by microbiology techniques.
elemental impurities ICP-MS
Team Discussion

Why Choose KYMOS Group?

  • GMP-certified & Inspected:

    • Our facilities are GMP-certified and regularly inspected by international authorities, ensuring reliability, traceability, and data integrity for all our QC testing.
  • Advanced Analytical Platforms:

    • State-of-the-art LC-MS, HR-MS, HPLC-CAD, ICP-MS, and DLS instrumentation enables high-resolution characterization of oligonucleotides, impurities, and formulations.
  • Integrated Expertise Across the Group

    • We are one of the few European CROs to offer integrated CMC and bioanalytical support for oligonucleotide therapeutics.
  • Trusted by Leading Developers

    • For over two decades, Kymos Group has been a trusted analytical partner for the life sciences industry, supporting complex CMC, stability, and bioanalysis programs across Europe

Services

Related services to QC of Oligonucleotides

Oligo testing

Bioanalysis of Nucleic Acids

Quantification of nucleic acids as therapeutics, biomarkers, or similar with standardized and reproducible methods according to GLP.

Analytisches CRO HPLCs

Batch Testing and Batch Release

Our laboratories are GMP certified, and we have a partial manufacturer authorization for quality control purposes.

Climatic chambers for stabilty studies

Stability Studies

Full ICH studies and on-going stability programmes at different storage conditions.

Contact

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