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HelpTest ID FFTRP Trofile Co-Receptor Tropism Assay
Useful For
Detect HIV-1 coreceptor tropism; determine eligibility for CCR5 antagonist therapy such as maraviroc (Selzentry)
Method Name
Polymerase chain reaction (PCR) amplification and viral culture.
Reporting Name
Trofile Phenotypic Corecept TropismSpecimen Type
Plasma EDTASpecimen Required
Specimen Type: Plasma
Container/Tube: Lavender-top (EDTA) or plasma preparation tube (PPT)
Specimen Volume: 3 mL
Collection Instructions: Draw blood in either PPT (pearl top) or lavender-top (EDTA) tubes.
Centrifuge specimen within six hours of collection. Remove plasma from cells immediately, and transfer specimen to a screw-capped, plastic vial. Freeze 3 mL of PPT plasma or EDTA plasma immediately, send specimen frozen.
To avoid delays in turnaround time when requesting multiple tests, please submit separate frozen specimens for each test requested.
RECOMMENDED:
1. Patient's most recent viral load
2. Viral load collection date
Note:  1. Intended to use only for patients with viral loads greater than or equal to 1000 copies/mL. For best results, viral loads should be confirmed within two weeks prior to submission for testing at Monogram.
          2. Patient samples submitted <30 days apart are considered duplicate and will be cancelled.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma EDTA | Frozen | 14 days |
Day(s) Performed
Sunday through Saturday
Performing Laboratory
Monogram Biosciences, IncCPT Code Information
87999
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FFTRP | Trofile Phenotypic Corecept Tropism | 57182-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z1038 | Tropotype Result | 57182-8 |
| Z1039 | Note: | Not Provided |
| Z1040 | Activity of CCR5 antag anticipated? | Not Provided |