Ordering Recommendation

MESOMARK is FDA approved for use as a Humanitarian Use Device. IRB registration and certification is required prior to ordering.




Quantitative Enzyme-Linked Immunosorbent Assay




1-8 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation

Serum Separator Tube(SST) or Plain Red.

Specimen Preparation

Allow specimen to clot completely at room temperature. Transfer 0.2 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)

Storage/Transport Temperature


Unacceptable Conditions

The full name of the ordering physician must be included with the submission. Forms and information about MESOMARK testing, and IRB registration, may be accessed at www2.fdi.com/mesomark.


After separation from cells: Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 3 months

Reference Interval

0.0-1.5 nmol/L

Interpretive Data

The Fujirebio Diagnostics, Inc. MESOMARK® is an enzyme-linked immunosorbent assay for the quantitative measurement of soluble mesothelin related peptides (SMRP) in serum. Measurement of SMRP may aid in the management of patients diagnosed with epithelioid or biphasic mesothelioma. Epidemiologic studies have established exposure to asbestos fibers as the primary cause of malignant mesothelioma. Results obtained with different assay methods or kits cannot be used interchangeably. Results cannot be interpreted as absolute evidence of the presence or absence of malignant disease.

Humanitarian Device. Authorized by Federal Law for use as an aid in the management of patients diagnosed with biphasic or epithelioid mesothelioma. The effectiveness of this device for this use has not been demonstrated.

Compliance Category

Humanitarian Use Device (HUD)


Because MESOMARK® is a test approved by the FDA as a Humanitarian Use Device, testing should be ordered using the following procedure(s):
1. The ordering physician must register with the Institutional Review Board (IRB) for MESOMARK® testing. Go to www2.fdi.com/mesomark to obtain IRB certification online.
2. The test should be ordered using the ARUP requisition form. The full name of the ordering physician must be included on the ARUP form to ensure timely testing of the specimen. Specimens submitted with incomplete information may delay specimen testing.
3. Physicians are instructed as follows: ARUP does not accept specimens directly from physician offices. ARUP only accepts specimens from established clients. To send a specimen to ARUP, contact your local hospital/reference lab to determine if they are an ARUP client and can send the specimen. If they cannot send the specimens to ARUP, contact ARUP Client Services at (800) 522-2787 to find an ARUP client in your area.
4. Forms and information about MESOMARK® testing, and IRB registration, may be accessed at www2.fdi.com/mesomark.
5. ARUP will receive specimens via usual shipping routes, from designated clients. When the specimen arrives, with an accompanying requisition, the physician's full name will be logged in, if present. If the ordering physician's full name is not present, the specimen is placed on EXCEPT after evaluation by the Special Chemistry department. The Special Chemistry lab will then contact Fujirebio Diagnostics, Inc. (FDI), who will then contact the physician for certification. FDI will then notify ARUP in Special Chemistry of completed certification. Special Chemistry will proceed with testing after certification is completed by the physician.

Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
0081285 Soluble Mesothelin Related Peptides 41292-4
0081289 Mesothelin Ordering MD: 18781-5
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • MESOMARK (Soluble Mesothelin Related Peptides (MESOMARK(R)))
  • Mesothelin
  • SMRP
Soluble Mesothelin Related Peptides (MESOMARK(R))