MESOMARK Humanitarian Device. Authorized by Federal Law for use as an aid in monitoring of patients diagnosed with mesothelioma. Each kit contains 96 tests. || MESOMARK is an enzyme linked immunosorbent assay (ELISA) for the quantitative measurement of Soluble mesothelin Related Peptides (SMRP) in human serum. Measurement of SMRP may aid in the monitoring of patients diagnosed with epithelioid or biphasic mesothelioma. MESOMARK values must be interpreted in conjunction with all other available clinical and laboratory data.