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Hexaminolevulinate
Hexaminolevulinate, sold under the brand name Cysview among others, is an imaging agent that lights up under blue light during a blue light cystoscopy. It is used to help detect non-muscle invasive bladder cancer (NMIBC), in particular papillary tumors and carcinoma in situ (CIS). It made by Photocure ASA, a Norwegian pharmaceutical company. Hexaminolevulinate is a structural analogue to 5-aminolevulinic acid (a precursor to the porphyrin ring of heme), and is internalized and processed into the photoactive protoporphyrin IX at a high rate by tumor cells. After exposure to 360-450 nm light, the porphyrin will fluoresce red.[1] References
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