Point-of-care molecular diagnostics

Point-of-care molecular diagnostics run PCR-grade nucleic-acid testing outside a central laboratory — in a clinic, emergency department, field site or resource-limited setting — returning a result in minutes to an hour instead of the day or more a send-out lab test requires. Cepheid’s GeneXpert cartridge-based system (owned by Danaher) recently received FDA clearance and EU IVDR CE marking for its Xpert GI gastrointestinal-pathogen panel, delivered Xpert Hemorrhagic Fever Panel tests to Africa during an Ebola Bundibugyo outbreak response, and expanded its sequencing partnership with Oxford Nanopore. Abbott’s ID NOW isothermal amplification platform is a widely deployed rapid molecular test, evaluated in published studies against central-lab RT-PCR and covered by multiple FDA 510(k) clearances for expanded panels. bioMérieux’s BIOFIRE FilmArray syndromic testing system runs multiplex PCR panels for respiratory and gastrointestinal pathogens, with a 2026 510(k) submission updating its GI panel line. In China, Sansure Biotech has scaled domestic point-of-care molecular testing manufacturing and distribution as a STAR Market-listed IVD company. In India, Molbio Diagnostics’ Truenat chip-based real-time PCR platform is WHO-endorsed for tuberculosis testing and now exports to more than 85 countries, serving as a reference point-of-care platform for resource-limited settings globally.

The key directions of point-of-care molecular diagnostics are:

1. Cartridge-based PCR platforms (Cartridge-Based PCR): self-contained, sample-to-answer PCR cartridges requiring minimal operator training — Cepheid GeneXpert, bioMérieux BIOFIRE FilmArray.
2. Isothermal amplification testing (Isothermal Amplification): rapid nucleic-acid amplification at a constant temperature, avoiding the thermal-cycling hardware a conventional PCR instrument requires — Abbott ID NOW.
3. Chip-based rapid PCR for resource-limited settings (Chip-Based Rapid PCR): battery-powered, portable chip-based real-time PCR designed for field and low-infrastructure deployment — Molbio Diagnostics’ Truenat.
4. Domestic point-of-care testing scale-up (Point-of-Care Testing Scale-Up): national manufacturing and distribution capacity for point-of-care molecular platforms built out during pandemic-era demand — Sansure Biotech.

Sectoral value chain#

[cartridge/chip/reagent design] ──> [instrument manufacturing] ──> [regulatory clearance (FDA/IVDR/NMPA)]
                                                    │
                                       (point-of-care deployment: clinic/field/hospital)
                                                    │
                                                    ▼
[result reporting & clinical action] <─── [sample-to-answer testing] <─────┘

Value chain levels#

Cross-cutting technologies of the sector:

• Cartridge-based nucleic-acid testing (Cartridge-Based PCR): self-contained cartridges integrate sample prep, amplification and detection into one disposable unit, removing the need for a trained lab technician.
• Isothermal amplification chemistry (Isothermal Amplification): amplification methods that run at a single constant temperature simplify the instrument to a low-cost heater/reader rather than a thermal cycler.
• Portable chip-based real-time PCR (Chip-Based Rapid PCR): battery-powered, ruggedized chip platforms extend PCR-grade testing to settings without reliable power or lab infrastructure.

The stack integrates sample preparation, nucleic-acid amplification and detection into a single self-contained consumable, paired with a simplified instrument that removes the need for a trained lab technician or central-lab turnaround time.

1. Cartridge-based sample-to-answer PCR (Cartridge-Based PCR):
   • Cepheid’s GeneXpert and bioMérieux’s BIOFIRE FilmArray integrate sample prep, PCR amplification and detection into a disposable cartridge, delivering a lab-grade multi-pathogen result without a trained operator.
2. Isothermal amplification (Isothermal Amplification):
   • Abbott’s ID NOW runs nucleic-acid amplification at a single constant temperature, simplifying the instrument to a compact, low-cost reader rather than a thermal cycler.
3. Chip-based portable real-time PCR (Chip-Based Rapid PCR):
   • Molbio Diagnostics’ Truenat platform runs battery-powered, chip-based real-time PCR validated by the WHO for tuberculosis testing, extending PCR-grade diagnostics to settings without reliable power or lab infrastructure.
4. National POCT manufacturing scale (Point-of-Care Testing Scale-Up):
   • Sansure Biotech’s domestic manufacturing and distribution capacity, built out during pandemic-era demand, continues to supply China’s point-of-care molecular testing market at scale.