Cyclosporine A by Tandem Mass Spectrometry
Ordering Recommendation
Use to optimize dosing and monitor patient adherence.
New York DOH Approval Status
Specimen Required
Predose (trough) levels should be drawn.
Lavender (EDTA) or pink (K2EDTA).
Transport 1 mL whole blood. (Min: 0.25 mL)
Refrigerated.
Serum or plasma. Specimens left at room temperature for longer than 24 hours. Clotted specimens.
Ambient: 24 hours; Refrigerated: 2 weeks; Frozen: 2 months
Methodology
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Sun-Sat
Reported
1-2 days
Reference Interval
Effective November 17, 2014
Therapeutic Range: |
|
---|---|
Cyclosporine A, Therapeutic Range | 100-400 ng/mL |
Kidney transplant (in combination with Everolimus) | 1 month post-transplant: 100-200 ng/mL 2-3 months post-transplant: 75-150 ng/mL 4-5 months post-transplant: 50-100 ng/mL 6-12 months post-transplant: 25-50 ng/mL |
Heart transplant | Up to 3 months post-transplant: 350-525 ng/mL 4 months and older post-transplant: 145-350 ng/mL |
Liver transplant | 290-525 ng/mL |
Toxic value | Greater than 700 ng/mL |
Interpretive Data
The general therapeutic range for cyclosporine A is 100-400 ng/mL. The optimal therapeutic range for a given patient may differ from this suggested range based on the indication for therapy, treatment phase (initiation or maintenance), use in combination with other drugs, time of specimen collection relative to prior dose, type of transplanted organ, and/or the therapeutic approach of the transplant center.
Laboratory Developed Test (LDT)
Note
Cyclosporine (Sandimmune) whole blood concentrations can be measured by either chromatographic or immunoassay methodologies. These two methodologies are not directly interchangeable, and the measured cyclosporine whole blood concentration depends on the methodology used. Reference ranges may vary according to the specific immunoassay or HPLC-MS/MS test. Generally, immunoassays have been reported to have a positive bias relative to HPLC-MS/MS assays due to the detection of antibody cross-reactivity with cyclosporine metabolites.
Hotline History
Hotline History
CPT Codes
80158
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0070035 | Cyclosporine A by HPLC-MS/MS | 3520-4 |
Aliases
- Cyclosporine
- Gengraf
- Neoral
- Restasis
- Sandimmune