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).[3]
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.[4]
References
- ^ "Prescription medicines: registration of new chemical entities in Australia, 2016". Therapeutic Goods Administration (TGA). 21 June 2022. Retrieved 10 April 2023.
- ^ "Cysview- hexaminolevulinate hydrochloride kit". DailyMed. 15 November 2022. Retrieved 10 April 2023.
- ^ Zhao H, Peng P, Luo Z, Liu H, Sun J, Wang X, et al. (March 2023). "Comparison of hexaminolevulinate (HAL) -guided versus white light transurethral resection for NMIBC: A systematic review and meta-analysis of randomized controlled trials". Photodiagnosis and Photodynamic Therapy. 41: 103220. doi:10.1016/j.pdpdt.2022.103220. PMID 36462704.
- ^ "Hexaminolevulinate". PubChem. U.S. National Library of Medicine.