MRD Express: Sensitive.
Tumor-specific. Fast.

Tumor-informed MRD sequencing panels, built within a day*

Panel synthesis to panel shipped

within 1 day*

Detection above background

10 ppm & below

Probes per panel

up to 10,000

Unrivaled speed

Online panel design

Ultra-sensitive

Order via your LIMS

Is your workflow enterprise-scale?

Automate production of thousands of tumor-informed panels per day, with touchless ordering and manufactured to ISO 13485 standards.

Making tradeoffs? Make them go away

Traditional barriers with other approaches

 

  • Long turnaround

5+ days with legacy hybrid capture workflows

 

  • Limited targets

Narrow with amplicon-based panels (16-64 targets)

 

  • Limited customization

Not possible with off-the-shelf or fixed panels

 

  • Slow design process

Process bottlenecks increase as order volume increases

 

MRD Express

 

  • Fast turnaround

Within a day from order to hybrid capture panel shipment

 

  • Thousands of targets

Up to 10,000 tumor-informed probes per panel

 

  • Fully customized

MRD panels are configured to exact target set

 

  • Automated process

API integrates directly with LIMS for high volume workflow

 

Tumor-informed MRD research just got easier

  • Workflow

    Cut vendor queues and uncertainty

  • Timelines

    Accelerate overall sample-to-result time

  • Costs

    Avoid markups as panel order volume increases

Join the research conversation

What’s still holding MRD back?

A roundtable with BloodPAC, Stanford, and Twist on what still limits tumor-informed MRD: standardized limit-of-detection definitions, comparing assays across studies, and getting tumor-informed panels back in days, not weeks.

Products used

  • Twist Custom Target Enrichment Panels

  • Designer and Ordering APIs

See the data behind MRD Express

Reproducibility

One ISO-grade quality standard across every panel, verified lot by lot.

Lot-to-lot reproducibility
                    - Each point is one target's normalized coverage in the same design manufactured on two adjacent production synthesis runs, plotted against the line of identity. Small (50 variant sites), R² = 0.978; medium (400 variant sites), R² = 0.923; large (5,000 variant sites), R² = 0.943. Resize

Scalable uniformity

Scale the design without sacrificing coverage.

Performance across panel sizes
                    - Representative MRD Express designs at default tiling, two probes per variant site. Generated with 15 ng cfDNA Pan-Cancer Reference Standard v2 in singleplex enrichment, subsampled to 60,000x. Fold-80 uniformity ranges 1.23–1.34, with 99.64–100% of targets at or above 0.2x mean coverage. Resize

Probe design

Hard-to-capture low-GC variants stay measurable instead of dropping out.

Probe design for low-GC targets
                    - Raw mean coverage per target, binned by GC content, for a standard panel and an MRD Express panel. At 25% GC and below, the standard panel's distribution extends to zero coverage while MRD Express stays tight. Singleplex enrichment, sequenced on an Illumina NextSeq 550, 2 x 75. Resize

Sensitivity

Built for calling variants at the fractions MRD research actually encounters.

Sensitivity at ultra-low VAF detection
                    - Recall of variant sites with at least one duplex read across expected allele fractions, for MRD Express and matched standard panels. 15 ng serially diluted cfDNA Pan-Cancer Reference Standard v2, downsampled to 80,000x. Asterisk marks significant recall at 0.001% versus background (p = 0.001). Resize

Panel Specs

Specification Detail

Panel size

1 – 10,000 probes

Reaction pack size

6 reactions

Probe design

120bp, LNA incorporated probes, double-stranded printing

Turnaround time

Ships within one day* upon design submission (same-day synthesis, ahead of the daily cutoff)

Ordering

eCommerce (self-guided BED/FASTA upload) or API (touchless, LIMS-integrated)

Bulk ordering

Up to 96 panels on a single quote

Tube formats

0.5 mL Sarstedt, FluidX or Matrix (available through API)

Storage

-20°C (label states -25°C to -15°C)

Order online in five simple steps

Upload target file

Configure panel design

Review panel design

Review panel coverage

Place your order

Ready to get started?

Control each detail of panel design

Drag and drop BED, FASTA, CSV, TSV or TXT files. Each file becomes its own panel design.

Choose your reference genome and tiling density, protect key regions, or edit many panels at once.

Follow live design status, see probe counts and prices, and download BED files that flag coverage gaps.

Resubmit with your uncovered-bases file as protected regions to cover them, at a higher off-target rate.

Match your reference genome, then load the covered and uncovered BED files side by side to judge any gaps.

Check probe counts, reactions and price per panel, add shipping details, then submit or save for later.

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Twist solutions for your MRD research

Need help building your workflow?

Connect with our technical team and let’s see how we can
advance your MRD research.

Up to 10,000 probes per panel, sold across six tiers (1–500, 501–1,000, 1,001–2,500, 2,501–5,000, 5,001–7,500, 7,501–10,000).

120bp probes.

6 reactions per panel.

Up to 96 panels on a single quote.

BED files with target coordinates for us to design against, or FASTA, TSV, TXTor CSV files with the probe sequences you wish to order.

Explore workflows with an expert

Schedule your walkthrough

*Turnaround times are estimates only and are not guaranteed. Actual turnaround may vary based on order specifications, sample characteristics, processing requirements, operational capacity, and other applicable factors. Product information, specifications, features, availability, and timing are subject to change without notice. Twist products are for research use only. They are not intended for the diagnosis, prevention, monitoring, or treatment of a disease or condition. Twist Bioscience assumes no liability regarding the use of its products in unintended applications.

MRD Express orders ship on dry ice as soon as they’re ready. For international orders, our standard ship days are chosen to avoid weekend delays in customs or at closed receiving sites:
 

  • Americas and EMEA: Monday, Thursday, Friday and Saturday
  • Asia-Pacific: Friday


Orders ready on Tuesday or Wednesday ship the same day if the carrier expects delivery before the weekend. To avoid any chance of weekend arrival, ask us to hold your order until the next scheduled ship day.