Rapid, Sensitive NGS based Chimerism Monitoring with Oxford Nanopore Sequencing
We are excited to announce the prototype launch of ONtrack! ONtrack is an in-development solution designed to enable rapid and sensitive chimerism monitoring using ONT platforms.
Based on the well-established NGStrack assay, ONtrack uses the same 34 biallelic indel markers and integrates seamlessly into the ONT sequencing workflow.
When to choose ONtrack for Chimerism Monitoring?
ONtrack delivers a cost-effective, rapid, and highly sensitive alternative to traditional Illumina-based chimerism assays with the flexibility and scalability of Oxford Nanopore Technologies sequencing. This is the perfect solution for laboratories that need urgent or time-sensitive results.
Key advantages:
-
Fast sequencing: Get results in under 3 hours per sample
- Easy workflow: Less than 2h hands on time required
-
High throughput: Process up to 96 samples in a single run
-
Enhanced sensitivity: Detect chimerism levels with sensitivity down to 0.5%
-
Integrated up-to-date data analysis: Compatible with the latest version of TRKengine software
Flexible & Scalable alternative to Illumina-based workflows
ONtrack uses 34 bi-allelic indel markers and combines rapid, scalable ONT sequencing with streamlined analysis in TRKengine®.
DNA to results turnaround time of less than 3 hours per sample

Ready to start using ONtrack?
Explore the potential of our prototype and take the next step in Chimerism Monitoring.
Order a Prototype

In our upcoming webinar, Lizzy Russell-Lowe, Clinical Scientist at Manchester Royal Infirmary, will present a study in which HLA typing results obtained with the GenDx NGS-Turbo® kit, using Oxford Nanopore Technologies sequencing, were retrospectively compared with standard intermediate-resolution HLA typing methods. The NGS-Turbo® kit produced concordant typing results for all samples in less than 4 hours.



































and GenDx doubled the amount, offering ultimately €2800 to 
Are you interested in learning about high-resolution HLA typing or expanding your laboratory and data analysis skills? Then our course “Become an expert in NGS HLA typing” is for you! It will take place at the GenDx Headquarters in Utrecht, the Netherlands, in September and includes hands-on laboratory work of the complete NGS HLA workflow and data analysis.











TRKengine software interprets the informativity of the markers and quantifies the chimerism percentage in post-samples. Its use as data management system allows for insightful chimerism monitoring and trending over time.
I found it a bit hard not to know the person for which I was doing this. It was someone, somewhere in the world, but that was all I knew; it remains anonymous. At some point during the day, they told me the patient’s gender and age. Also, I learned that the patient was on the heavier side, which meant that he needed more stem cells than the average person. So, it depends on how many stem cells are required for the patient whether the donation takes shorter or longer. For me, it took until 5.00PM.
Also, what I remember very vividly, is something that happened in 2012, when I was doing extremely unwell. My old soccer team, N.E.C. Nijmegen, played against my favorite soccer team, Feyenoord. There was a gigantic banner, put up by the crowd in the stadium, that said: “Frans, keep fighting” along with a huge painting of my face. It touched me deeply. I got so many messages after that. The original banner is completely weathered by now. To my surprise, the boys who made the original banner gifted me a small replica, on canvas, a short while ago. That was heartwarming.





