Liquid Biopsy DNA Test Cost in India (2026): NGS-Based ctDNA Analysis
At a Glance
- Sample Required: 5 ml peripheral blood (plasma)
- Fasting Rules: No fasting required
- Turnaround Time (TAT): 7–10 working days
- Base Cost: ₹23,000 – ₹30,000 (depending on panel size)
What is a Liquid Biopsy DNA Test?
A liquid biopsy is a non-invasive diagnostic method that detects cancer-related genetic alterations from a simple blood sample. Unlike traditional tissue biopsies, which require invasive surgical procedures, liquid biopsy analyzes circulating tumor DNA (ctDNA) released into the bloodstream by tumor cells. This approach enables clinicians to identify actionable mutations, monitor treatment response, and track disease progression in real time.
The test specifically detects epidermal growth factor receptor (EGFR) gene mutations, which occur in 10–35% of patients with non-small cell lung cancer (NSCLC). This information guides targeted therapy selection, ensuring the right treatment for the right patient at the right time.
While liquid biopsy is most widely used in lung, breast, and prostate cancers, its utility is expanding to other malignancies as NGS-based panels become more comprehensive.
Why Choose Liquid Biopsy Over Traditional Tissue Biopsy?
Liquid biopsy offers several advantages over conventional tissue biopsy:
- Non-invasive: Requires only a blood draw, eliminating surgical risks.
- Repeatable: Can be performed multiple times to monitor tumor evolution.
- Comprehensive: Captures heterogeneity by sampling ctDNA from all tumor sites, not just one location.
- Rapid: Faster processing compared to tissue biopsy, enabling quicker clinical decisions.
The procedure involves collecting 5 ml of blood, which is centrifuged to obtain 2 ml of plasma for ctDNA extraction and NGS analysis.
Types of Liquid Biopsy Assays
Several liquid biopsy methods exist, each tailored to specific clinical scenarios. Click here to view all available liquid biopsy tests.
- Circulating Tumor DNA (ctDNA): Used in oncology to detect tumor-specific mutations.
- Circulating Endothelial Cells (CECs): Sampled for cardiovascular conditions like heart attack.
- Cell-Free Fetal DNA (cffDNA): Extracted from maternal blood for prenatal screening.
- Amniotic Fluid Analysis: Used in prenatal diagnosis.
Other biomarkers, such as protoporphyrin IX, can be isolated for atherosclerosis detection. For central nervous system disorders, cerebrospinal fluid may be analyzed instead of blood.
Liquid Biopsy vs. Tissue Biopsy: A Comparative Overview
| Feature | Liquid Biopsy | Tissue Biopsy |
|---|---|---|
| Invasiveness | Non-invasive (blood draw) | Invasive (surgical procedure) |
| Tumor Heterogeneity | Captures multiple tumor sites | Limited to one site |
| Repeatability | Easy to repeat | Difficult and risky |
| Turnaround Time | 7–10 days | 2–4 weeks |
| Cost Range | ₹23,000 – ₹30,000 | ₹15,000 – ₹50,000+ |
Clinical Applications and Research Insights
Early Cancer Detection
Tumors release DNA fragments into the bloodstream that can be analyzed to detect cancer at an early stage. However, overtreatment of slow-growing tumors remains a concern. Prospective cohort studies are essential to validate ctDNA as a reliable early-detection marker and to determine whether early intervention improves outcomes.
Precision Medicine Guidance
ctDNA-based liquid biopsies can identify unique molecular characteristics of an individual's cancer, guiding targeted therapy selection. Large-scale studies have demonstrated the feasibility of using NGS-based liquid biopsies to detect actionable mutations. While many commercial tests exist, rigorous clinical validation is ongoing to establish their utility.
Liquid Biopsy Test Price in India
The cost of a liquid biopsy in India ranges from ₹23,000 to ₹30,000, depending on the number of genes analyzed and the laboratory. At DNA Labs India, we offer comprehensive NGS-based panels tailored to your clinical needs. Contact us for a personalized quote.
Why Choose DNA Labs India?
DNA Labs India is an ISO 9001 certified molecular diagnostics company dedicated to transforming patient care through innovative genetic testing. Our state-of-the-art laboratory uses advanced NGS technology to deliver accurate and actionable results.
How to Book Your Liquid Biopsy Test
Booking is simple and convenient. Visit our website www.dnalabsindia.com or call us at the numbers below. We offer home sample collection across 180+ cities in India, with highly qualified phlebotomists visiting at your preferred time.
For inquiries or scheduling, contact us:
- New Delhi: (011) 40849842
- Mumbai: (022) 48937160
- Kolkata: (033) 40836441
- Chennai: (044) 48137110
- Bangalore: (080) 45684079
- Hyderabad: (040) 49171772
- Ahmedabad: (079) 491076745
Email us at info@dnalabsindia.com and our expert team will assist you.