NGS represents a technological leap that has potential to revolutionize drug discovery and development.

Next Generation Sequencing (NGS) has the potential to unlock causative factors from our genetic material. NGS also represents a technological advancement using array-based sequencing that will improve many aspects of scientific research and advance the field of personalized medicine. Because of the sheer magnitude, precision and utilizable nature of the output data, a wealth of information will soon be available from studies completed using NGS.

Example NGS applications for biologics development support:

  • CRISPR/cas-9 indel validation and quantitation
  • Insertion site study
  • Rare mutations in inserted gene
  • Adventitious agents testing
  • Viral seed sequencing
  • E. coli phage identification

Avance Biosciences™ has developed NGS testing in support of our clients drug development initiatives and GMP manufacturing activities.

CRISPR indel amplicon sequencing

Working with a leading CRISPR technology-based biopharma company in Cambridge, MA, we developed a quantitative NGS amplicon sequencing assay for the client.  In conjunction with a real-time qPCR biodistribution study, we analyzed hundreds of mouse tissue samples to verify that the CRISPR-induced indels and their copies are stable after being injected into the animals.  A custom two-step minimum cycles of amplicon sequencing assay was developed and validated per ICH guidelines.  More than 500 samples were tested under GLP.

Insertion site study

Traditionally, Southern blot analysis is the method of choice to satisfy FDA’s requirements of charactering cell line genetic stability. Avance Biosciences™ is now offering two NGS approaches to analyze the transgene insertion sites.

The first approach performs whole genome sequencing on gDNA extracted from the cell line of interest.  Illumina’s PCR-free method is used for library preparation with the sequencing performed on a HiSeq.  The paired-end sequencing reads generated are analyzed using a proprietary NGS analysis pipeline involving multiple rounds of mapping and assembly to elucidate the insertion junctions.  The main advantages of this approach are that a reference genome sequence is not required and this method can be easily validated.

The second approach involves ligation of an adaptor followed by a nested PCR to pull down sequence fragments with insertion junctions.  Sequencing can be performed on an Illumina’s MiSeq, and the paired-end sequencing reads analyzed to identify insertion junctions.  The main advantage is that many samples can be analyzed easily once the assay is established.  This method does require knowledge of the host genome sequence.

Adventitious agents testing

Working with a large pharma company in US, we engaged in an NGS viral testing assay development project to support the client’s high-profile viral vaccine application.  An assay was designed to test viruses with dsDNA, ssDNA, dsRNA, or ssRNA genomes with a single library preparation process.  Multiple exemplary viruses were spiked into the testing sample as part of the qualification process.  The qualified assay were used in several batches of sample testing in compliance with GMP requirements.

Rare mutations in inserted gene

Working with a fast-growing biopharma company in California, we have designed several amplicon sequencing assays to help the client confirm whether mutations exist in their prepared cell lines.  Two-step limited cycle PCR was performed to generate NGS libraries, followed by paired-end sequencing performed on Illumina’s MiSeq.  More than a hundred cell line clonal samples were analyzed.  Data analyses corroborated with the client’s protein analysis and confirmed minor mutations in several positions.

Avance Biosciences™ specializes in assay development, validation, and sample testing services supporting our clients for their drug development initiatives and GMP manufacturing activities.  We are a leader in applying state-of-art technologies, such as next generation sequencing (NGS) and digital droplet PCR (ddPCR), to improve the effectiveness and efficiency of biologic tests.

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Our Customers Say…

Avance Biosciences™ (AB) has delivered the Sequencing data in a record time. Very impressive! We have benefited from AB’s hard work and are very grateful for that. AB team should feel proud of themselves. We thank AB team for their support and contributions, much appreciated.

Head of Quality Control, Microbial Manufacturing Service, California

Your team met the timelines we needed and did exceptional technical work. I will definitely make my management aware that Avance is a very capable partner for our bioanalytical needs.

Bioanalytical Senior Project Manager,  California

My experience with Avance has been nothing but positive… I will keep sending work your way as I appreciate the attention your team provides and Avance’s creative technical team. See you soon.

Director Individualized Medicines,  California

Avance has been the ideal partner in helping Mission Bio and our client,… be the first in the world to GMP qualify our single cell % transduction assay for a lentiviral gene therapy product. Excellent execution on the part of the Avance team. We look forward to more collaborations in the future.

Senior Director, Cell & Gene Therapy Business,  California

From the preliminary conclusion of this work, we are already pleased to thank you for your customer-oriented approach and proactive communication in the course of this study. We are happy to see the profound difference in business mindset between your organization and our previous vendor…

Project Manager, Belgium

Thank you so much for successfully completing this important project for us on time. We are very satisfied with the final report and thank you for taking the extra effort to customize the report format. We will definitely use your lab for future projects.

Program Manager, California

It has been a pleasure working with you and your team. The project was carried out to the highest standard and delivered in a timely manner. I will definitely recommend Avance Biosciences™’ services to colleagues and friends.

Senior Scientist, Singapore

When you partner with Avance Biosciences™, you gain a CRO partner that is creative, collaborative and dedicated to sound science with a focus on the regulatory requirements our partners require. Contact our technical staff to discuss how we can support you in your project!


Dedication to Quality

Dedication To Quality

The Avance Biosciences™ team is committed to strict adherence to CGMP and GLP regulations enacted by the US, European, Japanese, and other international regulatory agencies.


Extensive Experience

Open Communication

Our team has extensive knowledge and experience working with scientists, QA/QC professionals, and project managers from over 100 pharmaceutical and biotechnology companies and organizations throughout the world.


Open Communication

Open Communication

Transparency and integrity are two of our core values. Our well-trained, friendly, and professional study directors and project managers strive to complete your projects on-time with open communication channels and to your specifications.


Cutting Edge Science

Open Communication

Avance Biosciences™’ CGMP/GLP compliant genomic and microbial assays make use of the advanced technologies including real-time PCR, ddPCR, Sanger sequencing, next-gen sequencing, Southern blot, and more.