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PGX-TPMT StripAssay®

PGX-TPMT StripAssay®

PGX-TPMT StripAssay®

Product catalog summary
Introduction
Thiopurines are essential in treating leukemias, autoimmune disorders, and as immunosuppressants post-organ transplantation. Their metabolism is mediated by the enzyme thiopurine S-methyltransferase (TPMT). Variants in the TPMT gene can lead to reduced enzyme activity, causing toxic accumulation of thiopurines and myelosuppression.

Specifications
The PGX-TPMT StripAssay® is designed to identify key polymorphisms in the TPMT gene, crucial for tailoring thiopurine therapy. It detects TPMT alleles *1, *2, *3A, *3B, and *3C, which are associated with varying enzyme activity levels.

Procedure
The assay involves three main steps:
  • Amplification: Multiplex PCR amplification with biotin-labeling using a thermocycler.
  • Hybridization: Conducted directly on test strips in an incubator.
  • Identification: Results are visible to the naked eye or can be scanned using a streptavidin-alkaline phosphatase scanner.

Norms and Standards
The assay is ISO 13485 certified, ensuring compliance with international quality standards.

Recommendations
For patients with low TPMT activity, a lower dose of thiopurine or alternative treatments are recommended to avoid adverse effects.

Key Features
  • Easy and reliable with results visible in 6 hours.
  • Versatile, combining probes for variants and controls on one test strip.
  • Affordable and can be processed manually or automatically.

Additional Information
ViennaLab Diagnostics GmbH offers a range of diagnostic assays for various conditions. More details are available on their website.
See more

Catalog excerpts

PGX-TPMT StripAssay®-1

PGX - TPMT StripAssayThe easy way to optimize thiopurine therapy using established innovations in diagnostics PGX-TPMT Assay. Key to efficient therapy. Thiopurines are widely used in the treatment of leukemias and autoimmune disorders, such as Crohn's disease and rheumatoid arthritis. Their use as immunosuppressants after organ transplantation is equally well established. Thiopurine-based drugs are metabolized by the enzyme thiopurine S-methyltransferase (TPMT). Impaired TPMT enzyme activity results in an accumulation of thiopurines and toxic effects on the bone marrow (myelosuppression). 6-Mercaptopurine and its pro-drug azathioprine are immunosuppressants acting via inhibition of DNA synthesis. Thiopurine compounds are converted to therapeutically inactive metabolites by the enzyme TPMT, which exists in different isoforms. TPMT alleles *2 and *3 encode variants with substantially reduced enzyme activity. Patients with low TPMT activity (poor metabolizers) accumulate higher concentrations of thiopurines when receiving standard dosage, and are therefore at elevated risk for side effects such as myelosuppression. The PGX-TPMT StripAssay® offers an easy way to identify the most frequent polymorphisms in the TPMT gene with therapeutic relevance.

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PGX-TPMT StripAssay®-2

The ViennaLab PGX-TPMT StripAssay® meets customer requirements Requirement ViennaLab’s offer Three simple steps. 6 h. Done. Probes for variants and controls combined on one teststrip. Automated or manual processing. Incubator.Thermocycler. Shaker. That is all you need. Software for interpretation of results is optional. The ViennaLab PGX-TPMT StripAssay® combines all these requirements. The ViennaLab PGX-TPMT StripAssay® • is based on reverse-hybridization of biotinylated PCR products • combines probes for variants and controls in a parallel array of allele-specific oligonucleotides • works with...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.