OnKommon - Global Header
Signature STb – 33-Gene Blood · OnKommon
Signature · 33-Gene Blood

Signature STb — Fast, focused, actionable.

Urgent intelligence for immediate decisions.

When time is your most critical asset, you cannot wait weeks for a massive report, nor sift through data on drugs that are not available in India. Signature STb is our high-speed, highly focused liquid biopsy. From a simple blood draw, it analyses a precise set of 33 uniquely actionable genes with speed and precision.

Built for urgent scenarios, it strips away the noise — looking only at the genetic drivers and fusions that have targeted therapies approved, accessible, and actionable in India today.

Explore the Bundle 🧬 Includes Blueprint Care
⚡ Fast Turnaround 🎯 33 Actionable Genes 🩸 Liquid Biopsy

₹1,50,000 — panel + execution bundle

The price includes the testing panel and the execution bundle: the Blueprint Care decision report with three months of care coordination, plus an in-person KPCIRC molecular tumour board review.

  • 33 genes: Directly-actionable drivers with drugs accessible in India
  • 13 fusions: Clinically actionable rearrangements
  • Immune profile: TMB & MSI via a 200+ gene adhoc test
  • PGx panel: 35-gene pharmacogenomics & drug-response profile
  • Blueprint Care: 3 months of care coordination included
Why Choose STb

Three reasons to choose Signature STb.

When you need an answer now — and every positive result needs to be actionable.

Urgent Turnaround

When your doctor needs an answer now to start first- or second-line treatment, this focused panel cuts through the computational heavy lifting.

🎯

100% Actionable Focus

Every gene tested has a direct, approved drug or an accessible clinical trial linked to it in India — so every positive result comes with a real-world option.

💉

Non-Invasive

A blood draw means answers without waiting for surgery, and an option when surgery is too risky.

What It Includes — and What It Doesn't

Focused by design. Complete in what it delivers.

STb is optimised for speed and actionability. Here is exactly what is included — and what to step up for.

Included

  • SNVs & InDels: High-depth analysis across 33 highly actionable genes
  • Fusions: Across 13 genes known for clinically actionable rearrangements
  • PGx Panel: 35-gene Pharmacogenomics & Drug-Response Panel
  • Immune Profile: TMB and MSI via an adhoc 200+ gene test
  • Tumour-Fraction (TFx): The proportion of blood DNA shedding from the tumour
🚫

Excluded from the primary panel

  • Broad copy-number (CNV) and full mutational-signature analysis — these need a wider primary panel
  • Full trial-matching reach — step up to STb O+ for the fullest picture
📌 You still get TMB and MSI here. Even on this focused panel, the key immune-related markers are covered — TMB and MSI are provided through an adhoc test on a dedicated 200+ gene panel. If you also need broad copy-number analysis or the fullest trial-matching reach, step up to Signature STb O+ (comprehensive) or Signature STt O (tissue). For a molecular baseline for Sentinel monitoring, Signature STb O (118) is the natural start.
Detailed Panel Coverage

33 genes. 13 fusions. Highly actionable.

Every gene in this panel was selected because it has a direct, accessible drug or trial match in India.

SNVs & InDels — 33 genes AKT1, ALK, ATM, BRAF, CDKN2A, CTNNB1, DDR1, DDR2, EGFR, ERBB2, ERBB3, ERBB4, FGFR1, FGFR2, FGFR3, FGFR4, HRAS, KIT, KRAS, MAP2K1, MET, NRAS, NRG1, NTRK1, NTRK2, NTRK3, PIK3CA, PTEN, PTPN11, RET, ROS1, SMAD4, TP53. Fusion genes — 13 genes ALK, BRAF, FGFR1, FGFR2, FGFR3, FGFR4, MET, NRG1, NTRK1, NTRK2, NTRK3, RET, ROS1.
Clinical Roadmap Deliverables

Even on a fast-tracked panel, we never hand back raw data.

The engine gives your oncologist an action plan — immediately.

💊

Immediate Drug Matching

Detected mutations mapped to targeted therapies physically accessible in India today.

💰

Biosimilar Mapping

Where an expensive therapy is indicated, we pair it with clinically-equivalent, CDSCO-approved biosimilars to reduce cost.

🚫

Resistance Flagging

Variants (e.g. specific TP53 or KRAS changes) that cause resistance to standard therapies, so your doctor can pivot immediately.

How the Test Is Done

Four steps to an actionable answer.

From blood draw to action plan — fast-tracked for urgent decisions.

1
Collect

Urgent Sample Collection

A specialised blood draw by a qualified phlebotomist, at home or in clinic. (Kits are for phlebotomist use only — not for self-testing.)

2
Sequence

Rapid Sequencing

Cell-free DNA is extracted and sequenced on a fast-tracked next-generation pipeline.

3
Translate

Actionable Translation

The engine maps targets exclusively to drugs currently accessible in India.

4
Deliver

Medical Board & Delivery

A medical oncologist signs off, and your navigator helps execute the plan immediately.

Price, Bundle & Limits

₹1,50,000 — panel + execution bundle.

The price includes the testing panel and the execution bundle: the Blueprint Care decision report with three months of care coordination, plus an in-person KPCIRC molecular tumour board review to turn your results into an immediate treatment roadmap.

₹1,50,000
Panel + execution bundle
If a mutation is found, your dedicated OnKommon Care Coordinator steps in immediately — handling logistics, filing Patient Assistance Programme paperwork, and working with your doctor to secure medication quickly.
🧬 Includes 3 months of Blueprint Care

Regulatory information & critical limitations

Results must always be interpreted by a qualified healthcare professional alongside your full clinical history.

● Test boundaries. A normal result means the tumour does not carry these 33 specific actionable mutations. It does not mean the cancer is gone, nor rule out changes in the other ~20,000 genes in the body.

● DNA-shedding variables. Not all cancers release enough DNA into blood to be detected by liquid biopsy.

● Clonal haematopoiesis. Occasionally, detected changes originate from normal ageing blood cells, not the tumour.

Research & Evidence

The science behind this

The Signature STb approach — focused, blood-based genotyping to guide immediate therapy — is supported by liquid-biopsy evidence.

Study 1 · Plasma genotyping speeds matched therapy
In advanced lung cancer, adding plasma ctDNA genotyping to tissue increased the number of patients found to have a targetable alteration and able to start matched therapy.

Aggarwal C, et al. JAMA Oncology, 2019.

Study 2 · Blood CGP is validated and guideline-backed
Blood-based comprehensive genomic profiling has been validated in large studies, and guidelines endorse ctDNA testing when tissue is limited or a faster answer is needed.

Woodhouse R, et al. PLoS ONE, 2020; guideline review, Cancers, 2022.
These independent, peer-reviewed studies describe the class of technology OnKommon uses. They are shared for education; they are not results for any individual and are not a promise of benefit.

Need a second opinion or professional feedback? If you want an independent clinical view — or you are a clinician seeking a molecular tumour board discussion — our exclusive clinical partner KPCIRC provides paid second opinions, molecular tumour board reviews, and genetic counselling. Ask your navigator, or request it from any page.

Terminology & Transparency

The words you will see, in plain language.

📖 Decoder · The words you will see, in plain language
ctDNA Circulating tumour DNA — tumour DNA fragments in the blood that a liquid biopsy reads.
SNV / InDel A single-letter DNA change, or a small insertion/deletion — the commonest driver mutations.
Fusion Two genes joined abnormally, creating a driver that is often highly treatable.
CNV Copy-number variation — extra or missing copies of a gene.
TMB Tumour mutational burden — how many mutations a tumour carries; can point toward immunotherapy.
MSI / MMR Signals of faulty DNA repair; often predict immunotherapy response.
PGx Pharmacogenomics — how your genes affect the way you handle specific drugs.
Tumour fraction How much of the blood DNA came from the tumour — the context a result is read in.

What we DO

  • Find directly-actionable drivers and fusions, fast
  • Include an immune profile (TMB, MSI via a 200+ gene adhoc test) and PGx
  • Map targets to India-accessible drugs and biosimilars
  • Flag resistance variants so your team can pivot

What we DON'T do

  • Diagnose cancer or decide treatment alone
  • Report broad copy-number changes (step up for that)
  • Rule out disease from a normal result
  • Guarantee a drug's availability, approval, cover, or benefit
📋 Important information about this test

Signature STb is a genomic (DNA-based) test offered for use by qualified healthcare professionals. It is intended to support — not replace — clinical judgement, and must be interpreted alongside your full clinical history, other investigations, and applicable guidelines.

  • • A result is not a diagnosis and does not by itself decide treatment.
  • • A "not detected" or normal result does not rule out cancer or a genetic change.
  • • Not all cancers release enough DNA into blood to be detected.
  • • The test does not guarantee access to any medicine, its regulatory approval, insurance cover, or that a therapy will work.
  • • Sample-collection kits are for use by qualified phlebotomists only — not for self-testing or self-sampling.
  • • Confirmatory testing may be required.

Regulatory status (India). OnKommon's registration of its genomic tests as in-vitro diagnostic (IVD) medical devices with the Central Drugs Standard Control Organisation (CDSCO) is in progress (IVD class pending). Sequencing and variant calling are performed by an accredited laboratory partner (College of American Pathologists — CAP-accredited; ISO 15189) following international guidelines (ACMG/AMP/ASCO/CAP) using a CE-IVD certified variant database. The OnKommon interpretation engine is provided for research and decision-support use. Marketing follows the Drugs and Magic Remedies (Objectionable Advertisements) Act, 1954 and applicable Indian advertising standards.

Take the next step

Every OnKommon page offers three ways forward. Choose the one that fits where you are today.

Book a free Blueprint Consultation

A no-obligation conversation with our care team, arranged through KPCIRC, to map your situation and the right starting point.

Book now →

Begin Blueprint Care

Commission your decision report and dedicated clinical team.

Get started →

Free WhatsApp guidance (Signal)

A 4-hour triage reply to your first question, at no cost.

Start WhatsApp triage →
Scroll to Top